| lymphocystis in cultured snapper (pagrus auratus) and wild kingfish (seriola lalandi) in australia. | | 1992 | 1627088 |
| drug resistance and pulsed-field gel electrophoresis patterns of lactococcus garvieae isolates from cultured seriola (yellowtail, amberjack and kingfish) in japan. | to investigate the existing antimicrobial susceptibility and genetic characteristics of lactococcus garvieae isolates from cultured seriola in japan. | 2005 | 15836733 |
| bioavailability and pharmacokinetics of a praziquantel bolus in kingfish seriola lalandi. | oral praziquantel (pzq) preparations have recently been investigated for the treatment of monogeneans that infect the skin and gills of kingfish seriola lalandi cultured in sea-cages. to evaluate an oral pzq dosing strategy, the pharmacokinetics of a dissolved and in feed oral pzq preparation (40 mg kg(-1) body weight) were compared with an intravenous bolus in kingfish plasma and skin using hplc. compared with intravenous administration, pzq bioavailability (area under curve, auc0-24h) was slig ... | 2006 | 16724567 |
| metazoan parasite assemblages of wild seriola lalandi (carangidae) from eastern and southern australia. | yellowtail kingfish, seriola lalandi support significant commercial and recreational fisheries as well as aquaculture operations throughout the world. metazoan parasite infections of s. lalandi are of considerable economic and ecological importance, yet very little is known about wild parasite assemblages. s. lalandi were collected from the east coast and south coast of australia and examined for metazoan parasites. forty-three parasite taxa were identified, including 26 new host records. four o ... | 2007 | 17267264 |
| dna identification of ciliates associated with disease outbreaks in a new zealand marine fish hatchery. | ciliates associated with fish mortalities in a new zealand hatchery were identified by dna sequencing of the small subunit ribosomal rna gene (ssu rrna). tissue samples were taken from lesions and gill tissues on freshly dead juvenile groper, brain tissue from adult kingfish, and from ciliate cultures and rotifers derived from fish mortality events between january 2007 and march 2009. different mortality events were characterized by either of 2 ciliate species, uronema marinum and miamiensis avi ... | 2009 | 19902845 |
| cloning and functional characterization of a peroxiredoxin 4 from yellowtail kingfish (seriola lalandi). | peroxiredoxins (prxs) are antioxidant enzymes with a conserved cys residue at the active site which undergoes peroxide-dependent oxidation followed by thiol-dependent reduction during each catalytic cycle. in mammals, prx 4 proteins have an n-terminal signal peptide which targets them for secretion from the cell. this has not been investigated in fish. thus, here we describe the cloning of a prx 4 cdna from yellowtail kingfish (ytk, seriola lalandi) and the elucidation of the signal peptide clea ... | 2010 | 20381631 |
| two mortality events in sea-caged yellowtail kingfish seriola lalandi valenciennes, 1833 (nannopercidae) from western australia. | in november 2008 a commercial sea-cage operator farming yellowtail kingfish, seriola lalandi, in western australia reported more than 70% mortality of the sea-caged fish. several parasites and potentially pathogenic bacteria were isolated from the fish, but despite a detailed laboratory investigation the cause of the mortality event was never ascertained. that episode of deaths was followed in january 2009 by a smaller mortality event in fish in a sea cage that had been stocked several weeks ear ... | 2010 | 20854300 |
| molecular characterization of "candidatus parilichlamydia carangidicola," a novel chlamydia-like epitheliocystis agent in yellowtail kingfish, seriola lalandi (valenciennes), and the proposal of a new family, "candidatus parilichlamydiaceae" fam. nov. (order chlamydiales). | three cohorts of farmed yellowtail kingfish (seriola lalandi) from south australia were examined for chlamydia-like organisms associated with epitheliocystis. to characterize the bacteria, 38 gill samples were processed for histopathology, electron microscopy, and 16s rrna amplification, sequencing, and phylogenetic analysis. microscopically, the presence of membrane-enclosed cysts was observed within the gill lamellae. also observed was hyperplasia of the epithelial cells with cytoplasmic vacuo ... | 2012 | 23275507 |
| unicapsula species (myxosporea: trilosporidae) of australian marine fishes, including the description of unicapsula andersenae n. sp. in five teleost families off queensland, australia. | a survey of the myxosporean fauna of australian marine fishes revealed the presence of three previously unreported species of unicapsula (multivalvulida: trilosporidae) from sites off southeast queensland, off lizard island on the great barrier reef, queensland, and from jurien bay in western australia. morphometric data (spore, polar capsule and caudal appendage dimensions) combined with bayesian inference and maximum likelihood analyses of small subunit (ssu) and large subunit (lsu) ribosomal ... | 2013 | 23812600 |
| do swimming fish always grow fast? investigating the magnitude and physiological basis of exercise-induced growth in juvenile new zealand yellowtail kingfish, seriola lalandi. | there is a wealth of evidence showing that a moderate level of non-stop exercise improves the growth and feed conversion of many active fishes. a diverse number of active fish are currently being farmed, and an optimal level of exercise may feasibly improve the production efficiency of these species in intensive culture systems. our experiments have set out to resolve the growth benefits of juvenile new zealand yellowtail kingfish (seriola lalandi) enforced to swim in currents at various speeds ... | 2011 | 21562771 |
| the routine metabolic rate of mulloway (argyrosomus japonicus: sciaenidae) and yellowtail kingfish (seriola lalandi: carangidae) acclimated to six different temperatures. | this study compared the mass-specific routine metabolic rate (rmr) of similar sized mulloway (argyrosomus japonicus), a sedentary species, and yellowtail kingfish (seriola lalandi), a highly active species, acclimated at one of several temperatures ranging from 10-35 degrees c. respirometry was carried out in an open-top static system and rmr corrected for seawater-atmosphere o2 exchange using mass-balance equations. for both species rmr increased linearly with increasing temperature (t). rmr fo ... | 2009 | 19256082 |
| wildlife as reservoirs for parasites infecting commercial species: host specificity and a redescription of kudoa amamiensis from teleost fish in australia. | parasites of the genus kudoa (phylum myxozoa) have long been known to cause considerable losses to finfish aquaculture. one such parasite species, kudoa amamiensis, causes unsightly white cysts in the skeletal muscle of yellowtail kingfish, seriola quinqueradiata, in japan rendering the fillets unmarketable. the authors who characterized k. amamiensis, egusa & nakajima, 1980, hypothesized that yellowtail kingfish, as non-natives to the area, were accidental hosts of the parasite and that it norm ... | 2008 | 19238745 |
| acoustic pressure and particle motion thresholds in six sciaenid fishes. | sciaenid fishes are important models of fish sound production, but investigations into their auditory abilities are limited to acoustic pressure measurements on five species. in this study, we used auditory brainstem response (abr) to assess the pressure and particle acceleration thresholds of six sciaenid fishes commonly found in chesapeake bay, eastern usa: weakfish (cynoscion regalis), spotted seatrout (cynoscion nebulosus), atlantic croaker (micropogonias undulatus), red drum (sciaenops ocel ... | 2008 | 18424685 |
| metabolism of praziquantel in kingfish seriola lalandi. | investigations into the metabolism of drugs used in aquatic animal therapy are useful for understanding the mechanisms of xenobiotic transformation systems and can aid the development of dosing regimens. this study investigated the metabolism of the synthetic anthelmintic praziquantel, which has application in helminthiasis treatment for several fish species including kingfish seriola lalandi, a commercial aquaculture finfish species. at least 7 mono- or dihydroxylated derivatives of the parent ... | 2008 | 18380221 |
| efficacy of orally administered praziquantel against zeuxapta seriolae and benedenia seriolae (monogenea) in yellowtail kingfish seriola lalandi. | we investigated the efficacy of praziquantel (pzq) administered orally to yellowtail kingfish (seriola lalandi in sea-cage aquaculture in south australia) against the monogeneans zeuxapta seriolae and benedenia seriolae infesting gills and skin, respectively. pzq was administered to fish by surface-coating feed pellets (trial 1) or by direct intubation of the stomach (trial 2). in both trials 4 daily doses were administered: 50 and 75 mg kg(-1) body weight (bw) d(-1) for 6 d, and 100 and 150 mg ... | 2007 | 18062471 |
| naricolax hoi n. sp. (cyclopoida: bomolochidae) from arius maculatus (siluriformes: ariidae) off taiwan and a redescription of n. chrysophryenus (roubal, armitage & rohde, 1983) from a new host, seriola lalandi (perciformes: carangidae), in australian waters. | we propose that naricolax stocki (roubal, 1981) (cyclopoida: bomolochidae) of ho & lin (2005), reported from the spotted catfish arius maculatus (thunburg) off taiwan, represents a new species, n. hoi n. sp. n. hoi can be distinguished from six known congeners by the shape of the rostral area, the maxillary armature and the structural details of legs 3 and 4. n. chrysophryenus (roubal, armitage & rohde, 1983) is redescribed on the basis of recently collected material from wild and farmed yellowt ... | 2007 | 17912616 |
| ontogenetic scaling of fish metabolism in the mouse-to-elephant mass magnitude range. | intraspecific or ontogenetic analyses of mass-metabolism relationships do not often conform to the same allometric correlations as those seen in interspecific analyses. a commonly cited reason for this discrepancy is that ontogenetic studies examine smaller mass ranges than interspecific studies, and are therefore not statistically comparable. in this study the metabolic rate of yellowtail kingfish was measured from 0.6 mg-2.2 kg, a mass range comparable to that between a mouse and an elephant. ... | 2007 | 17827045 |
| effect of water temperature on reproductive development of benedenia seriolae (monogenea: capsalidae) from seriola lalandi in australia. | the monogenean benedenia seriolae (yamaguti, 1934) meserve, 1938 is a major pathogen of farmed yellowtail kingfish seriola lalandi in south australia. to control parasite populations in commercial farms, an understanding of the effect of water temperature on parasite development is vital. this study investigated the effect of water temperature (14, 18, 22 and 26 +/- 0.5 degrees c) on development, growth rates and age at sexual maturity of b. seriolae. five distinct developmental stages, defined ... | 2007 | 17465308 |
| release method and anatomical hook location: effects on short-term mortality of angler-caught acanthopagrus australis and argyrosomus japonicus. | one field and 3 aquaria experiments were done to quantify the short-term mortality of yellowfin bream acanthopagrus australis and mulloway argyrosomus japonicus after being angled and subjected to 3 general handling treatments. anglers were supplied with identical j-type hooks and asked to handle hooked fish by either (1) physically removing the hook or (2) cutting the line (5 cm from the mouth of the fish) and leaving the hook in. some hooked a. japonicus were subjected to a third handling trea ... | 2007 | 17425260 |
| cardiorespiratory physiology and swimming energetics of a high-energy-demand teleost, the yellowtail kingfish (seriola lalandi). | this study utilizes a swimming respirometer to investigate the effects of exercise and temperature on cardiorespiratory function of an active teleost, the yellowtail kingfish (seriola lalandi). the standard aerobic metabolic rate (smr) of s. lalandi (mean body mass 2.1 kg) ranges from 1.55 mg min(-1) kg(-1) at 20 degrees c to 3.31 mg min(-1) kg(-1) at 25 degrees c. this 2.1-fold increase in smr with temperature is associated with a 1.5-fold increase in heart rate from 77 to 117 beats min(-1), wh ... | 2006 | 16985209 |
| drug resistance and random amplified polymorphic dna analysis of photobacterium damselae ssp. piscicida isolates from cultured seriola (yellowtail, amberjack and kingfish) in japan. | to investigate the antimicrobial susceptibility and genetic characteristics of photobacterium damselae ssp. piscicida isolates obtained from cultured seriola in japan. | 2006 | 16706907 |
| effects of the gill monogenean zeuxapta seriolae (meserve, 1938) and treatment with hydrogen peroxide on pathophysiology of kingfish, seriola lalandi valenciennes, 1833. | infections by the gill fluke zeuxapta seriolae are a serious concern for sea cage aquaculture of kingfish, seriola lalandi. the present study aimed to determine the pathophysiological effects of a progressive infection with z. seriolae and the effects of treatment with hydrogen peroxide. for the progression of infection study, infected fish were taken from a sea cage farm, treated to remove parasites and then infected by cohabitation with heavily infected fish. samples were taken at 2-week inter ... | 2005 | 15892750 |
| effects of temperature on fecundity in vitro, egg hatching and reproductive development of benedenia seriolae and zeuxapta seriolae (monogenea) parasitic on yellowtail kingfish seriola lalandi. | globally, aquaculture industries involved with commercial culture of kingfish (seriola spp.) experience outbreaks of monogenean parasites, which can cause heavy stock losses. in australia and new zealand, aquaculturists of kingfish seriola lalandi incur financial losses caused by two monogenean species: benedenia seriolae and zeuxapta seriolae which parasitise the skin and gills, respectively. this study provides information on some basic temperature-dependent life-cycle parameters of these prob ... | 2004 | 15722083 |
| sciaenid inner ears: a study in diversity. | sciaenid fishes (family sciaenidae) could potentially serve as models for understanding the relationship between structure and function in the teleost auditory system, as they show a broad range of variation in not only the structure of the ear but also in the relationship between the ear and swim bladder. in this study, scanning electron microscopy (sem) was used to investigate inner ear ultrastructure of the atlantic croaker (micropogonias undulatus), spotted seatrout (cynoscion nebulosus), ki ... | 2001 | 11910172 |
| mercury content of commercially important fish of the seychelles, and hair mercury levels of a selected part of the population. | mercury and methyl mercury concentrations were determined in the muscle of 12 of the most important commercial fish species found in seychelles waters. the concentration of mercury in a few of the larger specimens of kingfish (acanthocybium solandri), becune (sphyraena forsteri), carangue balo (caranx gymnostethus), and bonito (euthynnus affinis) exceeded the provisional maximum permissible level of 1.0 mg/kg of total mercury established by the food and drug administration (1979) in the united s ... | 1983 | 6832117 |
| morphological development of embryo, larvae and juvenile in yellowtail kingfish, seriola lalandi. | this study monitored the morphological development of embryo, larvae and juvenile yellowtail kingfish, seriola lalandi, for their aquaculture. the fertilized eggs obtained by natural spawning were spherical shape and buoyant. fertilized eggs were transparent and had one oil globule in the yolk, with an egg diameter of 1.35 ± 0.04 mm and an oil globule diameter of 0.32 ± 0.02 mm. the fertilized eggs hatched 67-75 h after fertilization in water at 20 ± 0.5°c. the total length (tl) of the hatched l ... | 2016 | 27660828 |
| management of sexual maturation and natural spawning of captive- reared yellowtail kingfish, seriola lalandi, in an indoor rearing tank. | this study describes results on sexual maturation and characteristics of natural spawned eggs to develop a method for the production of stable, healthy fertilized eggs from captive-reared yellowtail kingfish, seriola lalandi. a total of 59 yellowtail kingfish were captured off the coast of jeju island, after which the broodstock was cultured in indoor culture tank (100 m(3)) until they were 6.1-14.9 kg in body weight. as part of the rearing management for induced sex maturation, the intensity of ... | 2016 | 27660829 |
| spatio-temporal patterns of genetic variations in populations of yellowtail kingfish seriola lalandi from the south-eastern pacific ocean and potential implications for its fishery management. | the genetic population structure and genetic diversity of yellowtail kingfish seriola lalandi from the coastal south-eastern pacific ocean (sep) were evaluated at spatiotemporal scale in order to understand the ecology of this species. between 2012 and 2015, temporal and spatial population genetic structure and a low genetic diversity were detected in s. lalandi from sep. these results suggest that s. lalandi specimens arriving annually from offshore to the sep coast could come from at least two ... | 2017 | 27781264 |
| assessment of cathepsin mrna expression and enzymatic activity during early embryonic development in the yellowtail kingfish seriola lalandi. | in pelagic species such as seriola lalandi, survival of both the eggs and embryos depends on yolk processing during oocyte maturation and embryo development. the main enzymes involved in these processes are the cathepsins, which are essential for the hydration process, acquiring buoyancy and nutrition of the embryo before hatching. this study aimed to investigate the mrna expression profiles of cathepsins b, d and l (catb, catd and catl) and the activity of these enzymes during early development ... | 2017 | 28262464 |
| potential role of ectoparasites (zeuxapta seriolae and caligus lalandei) in the transmission of pathogenic bacteria in yellowtail kingfish seriola lalandi, inferred from cultivable microbiota and molecular analyses. | | 2016 | 27943365 |
| in-vitro and in-vivo biological activity of recombinant yellowtail kingfish (seriola lalandi) follicle stimulating hormone. | biologically active recombinant yellowtail kingfish follicle stimulating hormone (rytkfsh) was produced in yeast pichia pastoris and its biological activity was demonstrated by both in-vitro and in-vivo bioassays. incubation of ovarian and testicular fragments with the recombinant hormone stimulated e2 and 11-kt secretion, respectively. in-vivo trial in immature female ytk resulted in a significant increase of plasma e2 levels and development of oocytes. in males at the early stages of puberty, ... | 2017 | 26965950 |
| identification of naturally occurring hybrids between two overexploited sciaenid species along the south african coast. | hybridisation between fish species can play a significant role in evolutionary processes and can influence management and conservation planning, however, this phenomenon has been widely understudied, especially in marine organisms. the distribution limits of two sciaenid species (silver kob, argyrosomus inodorus, and dusky kob, a. japonicus) partly overlap along the south african coast, where both species have undergone severe depletion due to overfishing. following the identification of a numbe ... | 2014 | 24582737 |
| effects of pro-tex on zebrafish (danio rerio) larvae, adult common carp (cyprinus carpio) and adult yellowtail kingfish (seriola lalandi). | aquaculture practices bring several stressful events to fish. stressors not only activate the hypothalamus-pituitary-interrenal-axis, but also evoke cellular stress responses. up-regulation of heat shock proteins (hsps) is among the best studied mechanisms of the cellular stress response. an extract of the prickly pear cactus (opuntia ficus indica), pro-tex, a soluble variant of tex-oe(®), may induce expression of hsps and reduce negative effects of cellular stress. pro-tex therefore is used to ... | 2014 | 24493298 |
| praziquantel delivery via moist pellets to treat monogenean parasites of yellowtail kingfish seriola lalandi: efficacy and feed acceptance. | praziquantel (pzq) is registered for oral use against benedenia seriolae infecting seriola spp. in japan, but its bitter taste causes poor palatability. incorporating pzq in a moist pellet may help mask the flavor to improve intake. altering delivery, however, may influence efficacy. we assessed the minimum effective concentrations of pzq in moist pellets delivered by intubation for the monogeneans zeuxapta seriolae and b. seriolae infecting yellowtail kingfish seriola lalandi in flow-through ta ... | 2016 | 27786158 |
| australian farmed yellowtail kingfish (seriola lalandi) and mulloway (argyrosomus hololepidotus): residues of metallic, agricultural and veterinary chemicals, dioxins and polychlorinated biphenyls. | composite samples of australian farmed yellowtail kingfish (seriola lalandi) (ytkf) (n=27), mulloway (argyrosomus hololepidotus) (n=6) and manufactured feed (n=5) were analysed to benchmark levels of a broad range of residues and contaminants of potential public health and trade significance. a subset of these samples [ytkf (n=5), mulloway (n=2) and feed (n=5)] was analysed for dioxins and polychlorinated biphenyls (pcbs). the mean concentration of dioxins in ytkf was 0.6pg teqg(-1) (range 0.22- ... | 2011 | 22142628 |
| improving consumption rate estimates by incorporating wild activity into a bioenergetics model. | consumption is the basis of metabolic and trophic ecology and is used to assess an animal's trophic impact. the contribution of activity to an animal's energy budget is an important parameter when estimating consumption, yet activity is usually measured in captive animals. developments in telemetry have allowed the energetic costs of activity to be measured for wild animals; however, wild activity is seldom incorporated into estimates of consumption rates. we calculated the consumption rate of a ... | 2016 | 27069576 |
| data-limited population-status evaluation of two coastal fishes in southern angola using recreational catch length-frequency data. | excessive truncation of a population's size structure is often identified as an important deleterious effect of exploitation, yet the effect on population persistence of size-structure truncation caused by exploitation is often not quantified due to data limitations. in this study, we estimate changes in eggs per recruit (epr) using annual length-frequency samples over a 9 year period to assess persistence of the two most important recreational fishes in southern angola: west coast dusky kob (ar ... | 2016 | 26829489 |
| lost at sea: ocean acidification undermines larval fish orientation via altered hearing and marine soundscape modification. | the dispersal of larvae and their settlement to suitable habitat is fundamental to the replenishment of marine populations and the communities in which they live. sound plays an important role in this process because for larvae of various species, it acts as an orientational cue towards suitable settlement habitat. because marine sounds are largely of biological origin, they not only carry information about the location of potential habitat, but also information about the quality of habitat. whi ... | 2016 | 26763221 |
| development and ossification of the feeding apparatus in the larvae of two co-occurring species of kob (sciaenidae), argyrosomus japonicus and argyrosomus inodorus, in south africa. | the teeth of the oral jaws of two sympatric species of argyrosomus, argyrosomus japonicus and argyrosomus inodorus, found along the south african coast developed first on the premaxilla and then on the dentary of the lower jaw. teeth were observed on the premaxilla of a. inodorus [head length (lh) = 1·0 mm; notochord length (ln) = 2·7 mm] at a smaller size than in a. japonicus (lh = 1·2 mm; ln = 4·7 mm). the ventral elements of the gill arches (hypo- and basibranchials) were not ossified by the ... | 2016 | 26660735 |
| preliminary assessment of contaminants in the sediment and organisms of the swartkops estuary, south africa. | urban estuaries are susceptible to metal and organic pollution, yet most remain understudied in south africa with respect to the presence, concentrations and distribution of contaminants. metal and organic chemical concentrations were assessed in sediment and organisms from different trophic levels in the lower reaches of the swartkops estuary. species sampled included upogebia africana (malacostraca: upogebiidae), gilchristella aestuaria (clupeidae), psammogobius knysnaensis (gobiidae), mugil c ... | 2015 | 26593278 |
| australian seafood compositional profiles: a pilot study. vitamin d and mercury content. | given the scarcity of comprehensive nutritional data for australia's >400 commercially produced seafood species a pilot study was undertaken to collect and analyse 22 species of wild and aquaculture seafood in order to develop a model for future comprehensive surveys. the species analysed were: atlantic salmon, australian sardine, prawn (six species), barramundi, abalone (three species), blue sprat, burrowing blackfish, gummy shark, oyster (four species), ocean trout and yellowtail kingfish. the ... | 2016 | 26433295 |
| the influence of finfish aquaculture on benthic fish and crustacean assemblages in fitzgerald bay, south australia. | the influence of sea-cage aquaculture on wildfish assemblages has received little attention outside of europe. sea-cage aquaculture of finfish is a major focus in south australia, and while the main species farmed is southern bluefin tuna (thunnus maccoyii), there is also an important yellowtail kingfish (seriola lalandi) industry. yellowtail kingfish aquaculture did not appear to have any local or regional effects on demersal assemblages (primarily fish, but also some crustaceans) surveyed by b ... | 2015 | 26401452 |
| praziquantel treatment for yellowtail kingfish (seriola lalandi): dose and duration safety study. | regulatory approval is being sought to use praziquantel (pzq) to treat flukes infecting yellowtail kingfish (ytk), but accurate safety data were not available. we investigated the effect of increased doses or prolonged exposure of orally administered pzq on ytk by assessing changes in haematological and biochemical characteristics, and mortality. fish were intubated daily for 3 days with 0, 100, 300 and 500 mg pzq kg(-1) bw day(-1) or once daily for 9 days at 0 and 100 mg pzq kg(-1) bw day(-1). ... | 2016 | 26314575 |
| a comprehensive transcriptome of early development in yellowtail kingfish (seriola lalandi). | seriola lalandi is an ecologically and economically important species that is globally distributed in temperate and subtropical marine waters. the aim of this study was to identify large numbers of genic single nucleotide polymorphisms (snps) and differential gene expression (dge) related to the early development of normal and deformed s. lalandi larvae using high-throughput rna-seq data. a de novo assembly of reads generated 40,066 genes ranging from 300 bases to 64,799 bases with an n90 of 788 ... | 2016 | 26230659 |
| assessment of yellowtail kingfish (seriola lalandi) as a surrogate host for the production of southern bluefin tuna (thunnus maccoyii) seed via spermatogonial germ cell transplantation. | germ cell transplantation is an innovative technology for the production of interspecies surrogates, capable of facilitating easier and more economical management of large-bodied broodstock, such as the bluefin tuna. the present study explored the suitability of yellowtail kingfish (seriola lalandi) as a surrogate host for transplanted southern bluefin tuna (thunnus maccoyii) spermatogonial cells to produce tuna donor-derived gametes upon sexual maturity. germ cell populations in testes of donor ... | 2015 | 26195109 |
| growth differentiation factor 9 and bone morphogenetic protein 15 expression in previtellogenic oocytes and during early embryonic development of yellow-tail kingfish seriola lalandi. | during fish oocyte maturation, specific molecules are expressed and accumulated within oocyte until fertilization and embryo development. special attention have been paid in members of the transforming growth factor (tgf-β) superfamily; growth differentiation factor 9 (gdf9/gdf9) and bone morphogenetic protein 15 (bmp15/bmp15), which exert regulatory functions during oocyte maturation and follicle development. however, little attention has been paid to the involvement of these molecules during e ... | 2014 | 25723449 |
| primordial germ cell migration in the yellowtail kingfish (seriola lalandi) and identification of stromal cell-derived factor 1. | primordial germ cells (pgcs) are progenitors of the germ cell lineage, giving rise to either spermatogonia or oogonia after the completion of gonadal differentiation. currently, there is little information on the mechanism of pgcs migration leading to the formation of the primordial gonad in perciform fish. yellowtail kingfish (seriola lalandi) (ytk) (order perciforms) inhabit tropical and temperate waters in the southern hemisphere. fundamental details into the molecular basis of larval develop ... | 2015 | 25708429 |
| testing and validating a modified ctab dna extraction method to enable molecular parentage analysis of fertilized eggs and larvae of an emerging south african aquaculture species, the dusky kob argyrosomus japonicus. | this study describes the successful implementation of a modified cetyltrimethyl ammonium bromide (ctab) protocol to isolate genomic dna and amplify 14 microsatellite markers from fertilized eggs and larvae of an emerging south african farmed marine fish species, the dusky kob argyrosomus japonicus. to test and validate the efficiency of this method, genetic data were utilized to resolve parentage and kinship of first-generation (f1) offspring produced in mass-spawning events of wild broodstock f ... | 2015 | 25683971 |
| quantitative genetic properties of four measures of deformity in yellowtail kingfish seriola lalandi valenciennes, 1833. | the main aim of this study was to estimate the heritability for four measures of deformity and their genetic associations with growth (body weight and length), carcass (fillet weight and yield) and flesh-quality (fillet fat content) traits in yellowtail kingfish seriola lalandi. the observed major deformities included lower jaw, nasal erosion, deformed operculum and skinny fish on 480 individuals from 22 families at clean seas tuna ltd. they were typically recorded as binary traits (presence or ... | 2016 | 25683477 |
| fish protein hydrolysates: application in deep-fried food and food safety analysis. | four different processes (enzymatic, microwave-intensified enzymatic, chemical, and microwave-intensified chemical) were used to produce fish protein hydrolysates (fph) from yellowtail kingfish for food applications. in this study, the production yield and oil-binding capacity of fph produced from different processes were evaluated. microwave intensification significantly increased the production yields of enzymatic process from 42% to 63%. it also increased the production yields of chemical pro ... | 2015 | 25559171 |
| unilateral ablation of trunk superficial neuromasts increases directional instability during steady swimming in the yellowtail kingfish seriola lalandi. | detailed swimming kinematics of the yellowtail kingfish seriola lalandi were investigated after unilateral ablation of superficial neuromasts (sns). most kinematic variables, such as tail-beat frequency, stride length, caudal fin-beat amplitude and propulsive wavelength, were unaffected but lateral amplitude at the tip of the snout (a0 ) was significantly increased in sn-disrupted fish compared with sham-operated controls. in addition, the orientation of caudal fin-tip relative to the overall sw ... | 2014 | 25082013 |
| absorption of metals in mulloway (argyrosomus japonicus) after ingesting nickel-plated carbon-steel hooks. | previous research has alluded to the potential of metals being absorbed by fish after ingesting fishing hooks, which may have adverse effects on fish health and the organisms that consume them. subsequently, this study aimed to quantify the potential of mulloway (argyrosomus japonicus) to absorb metals during the decay of ingested nickel-plated carbon-steel hooks. twenty-five treatment fish were allowed to ingest nickel-plated carbon-steel hooks during angling and then monitored with 25 controls ... | 2014 | 25016938 |
| praziquantel form, dietary application method and dietary inclusion level affect palatability and efficacy against monogenean parasites in yellowtail kingfish. | the bitterness of racemic praziquantel (pzq) currently constrains its use as an in-feed treatment against monogenean flukes in finfish aquaculture. in an effort to increase the palatability of diets containing racemic pzq for yellowtail kingfish, the palatability and efficacy of 2 forms of racemic pzq (powder or powder within microcapsules) against natural infestations of skin and gill flukes were compared using 2 different dietary application methods (incorporated within the pellet mash prior t ... | 2014 | 24991743 |
| shock, stress or signal? implications of freshwater flows for a top-level estuarine predator. | physicochemical variability in estuarine systems plays an important role in estuarine processes and in the lifecycles of estuarine organisms. in particular, seasonality of freshwater inflow to estuaries may be important in various aspects of fish lifecycles. this study aimed to further understand these relationships by studying the movements of a top-level estuarine predator in response to physicochemical variability in a large, temperate south-east australian estuary (shoalhaven river). mullowa ... | 2014 | 24752585 |
| first record of unicapsula seriolae (myxozoa: multivalvulida) from the muscle of malabar grouper epinephelus malabaricus in japan. | unicapsula seriolae (myxozoa; multivalvulida) was found in the trunk muscle of malabar grouper epinephelus malabaricus caught off wakayama prefecture, japan. numerous filamentous or sesamoid brown to black lesions were observed in the skeletal muscle. histopathological observation indicated that the lesions were myxosporean plasmodia encapsulated by a fibrous layer, accompanied by melanin deposition. spores having one large and two rudimentary polar capsules were subspherical in shape and 6.6 × ... | 2014 | 24632098 |
| swim bladder function and buoyancy control in pink snapper (pagrus auratus) and mulloway (argyrosomus japonicus). | physoclist fish are able to regulate their buoyancy by secreting gas into their hydrostatic organ, the swim bladder, as they descend through the water column and by resorbing gas from their swim bladder as they ascend. physoclists are restricted in their vertical movements due to increases in swim bladder gas volume that occur as a result of a reduction in hydrostatic pressure, causing fish to become positively buoyant and risking swim bladder rupture. buoyancy control, rates of swim bladder gas ... | 2014 | 23979722 |
| chronic kisspeptin administration stimulated gonadal development in pre-pubertal male yellowtail kingfish (seriola lalandi; perciformes) during the breeding and non-breeding season. | the kisspeptin system is now accepted as a key regulator of vertebrate reproductive function, particularly the onset of puberty. in teleosts, the stimulatory effect of exogenous kisspeptins has been demonstrated mainly at the hypothalamic and pituitary levels of the reproductive axis, with very limited information pertaining to gonadal response. we determined the effect of chronic peripheral administration of the conserved kisspeptin decapeptides (ynlnsfglry or kiss1-10; and fnfnpfglrf or kiss2- ... | 2013 | 23791760 |
| molecular characterization of "candidatus similichlamydia latridicola" gen. nov., sp. nov. (chlamydiales: "candidatus parilichlamydiaceae"), a novel chlamydia-like epitheliocystis agent in the striped trumpeter, latris lineata (forster). | histological analysis of gill samples taken from individuals of latris lineata reared in aquaculture in tasmania, australia, and those sampled from the wild revealed the presence of epitheliocystis-like basophilic inclusions. subsequent morphological, in situ hybridization, and molecular analyses were performed to confirm the presence of this disease and discovered a chlamydia-like organism associated with this condition, and the criteria set by fredericks and relman's postulates were used to es ... | 2013 | 23770893 |
| ontogeny of body density and the swimbladder in yellowtail kingfish seriola lalandi larvae. | the ontogeny of larval body density and the morphological and histological events during swimbladder development were investigated in two cohorts of yellowtail kingfish seriola lalandi larvae to understand the relationship between larval morphology and body density. larvae <3 days post hatch (dph) were positively buoyant with a mean ± s.d. body density of 1.023 ± 0.001 g cm(-3). histological evidence demonstrated that s. lalandi larvae are initially transient physostomes with the primordial swim ... | 2013 | 23398074 |
| investigating causes of skeletal malformation in yellowtail kingfish seriola lalandi. | | 2013 | 25141630 |
| in situ source levels of mulloway (argyrosomus japonicus) calls. | mulloway (argyrosomus japonicus) in mosman bay, western australia produce three call categories associated with spawning behavior. the determination of call source levels and their contribution to overall recorded sound pressure levels is a significant step towards estimating numbers of calling fish within the detection range of a hydrophone. the source levels and ambient noise also provide significant information on the impacts anthropogenic activity may have on the detection of a. japonicus ca ... | 2012 | 23145635 |
| new pathological condition in cultured mulloway argyrosomus japonicus: histopathological, ultrastructural and molecular studies. | mulloway argyrosomus japonicus is a native fish species in western australia, for which aquaculture production has recently been developed. a single cohort was stocked in a cage offshore at geraldton, western australia, at a water depth of 6 m. fish appeared healthy before stocking. routine histological analysis was carried out from 10 mo post stocking and until completion of harvest (about 2.5 yr post stocking). no gross pathology was evident. microscopically, however, granulomatous lesions wer ... | 2012 | 22968790 |
| disrupted flow sensing impairs hydrodynamic performance and increases the metabolic cost of swimming in the yellowtail kingfish, seriola lalandi. | the yellowtail kingfish, seriola lalandi, shows a distribution of anaerobic and aerobic (red and pink) muscle fibres along the trunk that is characteristic of active pelagic fishes. the athletic capacity of s. lalandi is also shown by its relative high standard metabolic rate and optimal (i.e. least cost) swimming speed. to test the hypothesis that lateral line afferent information contributes to efficient locomotion in an active pelagic species, the swimming performance of s. lalandi was evalua ... | 2012 | 22899528 |
| analysis of the complete genome sequence of nocardia seriolae utf1, the causative agent of fish nocardiosis: the first reference genome sequence of the fish pathogenic nocardia species. | nocardiosis caused by nocardia seriolae is one of the major threats in the aquaculture of seriola species (yellowtail; s. quinqueradiata, amberjack; s. dumerili and kingfish; s. lalandi) in japan. here, we report the complete nucleotide genome sequence of n. seriolae utf1, isolated from a cultured yellowtail. the genome is a circular chromosome of 8,121,733 bp with a g+c content of 68.1% that encodes 7,697 predicted proteins. in the n. seriolae utf1 predicted genes, we found orthologs of virulen ... | 2017 | 28257489 |
| the kiss2 receptor (kiss2r) gene in southern bluefin tuna, thunnus maccoyii and in yellowtail kingfish, seriola lalandi - functional analysis and isolation of transcript variants. | the kisspeptin system plays an essential role in reproductive function in vertebrates, particularly in the onset of puberty. we investigated the kisspeptin system in two perciform teleosts, the southern bluefin tuna (sbt; thunnus maccoyii), and the yellowtail kingfish (ytk; seriola lalandi), by characterising their kisspeptin 2 receptor (kiss2r) genes. in addition to the full length kiss2r cdna sequences, we have isolated from sbt and ytk a transcript variant that retained an intron. we have fur ... | 2012 | 22824208 |
| in silico analysis of the regulatory region of the yellowtail kingfish and zebrafish kiss and kiss receptor genes. | we have cloned and analysed the partial putative promoter sequences of the yellowtail kingfish (seriola lalandi) kiss2 and kiss2r genes (380 and 420 bp, respectively). we obtained in silico 1.5 kb of the zebrafish (danio rerio) kiss1, kiss2, kiss1r and zfkiss2r sequences upstream of the putative transcriptional initiation site. bioinformatic analysis revealed promoter regulatory elements including ap-1, sp1, gr, er, pr, ar, gata-1, ttf-1, yy1 and c/ebp. these regulatory elements may mediate nove ... | 2013 | 22527613 |
| dietary fish oil replacement with canola oil up-regulates glutathione peroxidase 1 gene expression in yellowtail kingfish (seriola lalandi). | the marine carnivore yellowtail kingfish (ytk, seriola lalandi) was fed diets containing 5% residual fish oil (from the dietary fish meal) plus either 20% fish oil (fo), 20% canola oil (co), 20% poultry oil (po), 10% fish oil plus 10% canola oil (fo/co) or 10% fish oil plus 10% poultry oil (fo/po) and the effects on fish growth and hepatic expression of two glutathione peroxidase (gpx 1 and gpx 4) and two peroxiredoxin (prx 1 and prx 4) antioxidant genes were investigated. partial (50%) replacem ... | 2012 | 22521527 |
| structural characterization of carangid fish myoglobins. | the primary structures of myoglobin (mb) from the following five carangid species were determined: yellowtail seriola quinqueradiata, greater amberjack seriola dumerili, yellowtail kingfish seriola lalandi, japanese horse mackerel trachurus japonicus, and silver trevally pseudocaranx dentex. the sequences were of varying composition both in the coding and in the noncoding regions, but all contained the open reading frame of 444 nucleotides encoding 147 amino acids. amino acid sequence identities ... | 2012 | 22361749 |
| anaphylactic shock caused by a 33-kda alpha s1-casein-like allergen in kingfish caviar. | | 2009 | 19610275 |
| the effect of temperature and body weight on the routine metabolic rate and postprandial metabolic response in mulloway, argyrosomus japonicus. | specific dynamic action (sda) is the energy expended on the physiological processes associated with meal digestion and is strongly influenced by the characteristics of the meal and the body weight (bw) and temperature of the organism. this study assessed the effects of temperature and body weight on the routine metabolic rate (rmr) and postprandial metabolic response in mulloway, argyrosomus japonicus. rmr and sda were established at 3 temperatures (14, 20 and 26 degrees c). 5 size classes of mu ... | 2009 | 19465143 |
| distribution and speciation of bromine in mammalian tissue and fluids by x-ray fluorescence imaging and x-ray absorption spectroscopy. | bromine is one of the most abundant and ubiquitous trace elements in the biosphere and until recently had not been shown to perform any essential biological function in animals. a recent study demonstrated that bromine is required as a cofactor for peroxidasin-catalysed formation of sulfilimine crosslinks in drosophila. in addition, bromine dietary deficiency is lethal in drosophila, whereas bromine replenishment restores viability. the aim of this study was to examine the distribution and speci ... | 2015 | 25675086 |
| forced sustained swimming exercise at optimal speed enhances growth of juvenile yellowtail kingfish (seriola lalandi). | swimming exercise at optimal speed may optimize growth performance of yellowtail kingfish in a recirculating aquaculture system. therefore, optimal swimming speeds (u opt in m s(-1) or body lengths s(-1), bl s(-1)) were assessed and then applied to determine the effects of long-term forced and sustained swimming at u opt on growth performance of juvenile yellowtail kingfish. u opt was quantified in blazka-type swim-tunnels for 145, 206, and 311 mm juveniles resulting in values of: (1) 0.70 m s(- ... | 2014 | 25620933 |
| neoechinorhynchus (neoechinorhynchus) dorsovaginatus n. sp.(acanthocephala: neoechinorhynchidae) from the dusky kob argyrosomus japonicus (sciaenidae) on the southern coast of south africa. | neoechinorhynchus (neoechinorhynchus) dorsovaginatus n. sp. (acanthocephala: neoechinorhynchidae) is described from the dusky kob, argyrosomus japonicus (temminck & schlegel) from the southern coast of south africa in the breede river estuary. like four other species of neoechinorhynchus stiles & hassall, 1905, n. (n.) africanus troncy, 1969, n. (n.) johnii yamaguti, 1939, n. topseyi podder, 1937 and n. (n.) tylosuri yamaguti, 1939, the new species has a very long, slender body, cylindrical test ... | 2005 | 16025206 |
| localization of acid phosphatase activity in the testis of two teleostean species (oreochromis niloticus and odonthestes perugiae). | acid phosphatase (acp) activity was investigated in the testes of two species of teleosts in two seasons: summer and winter. acp activity was detected in sertoli cells from tilapia (oreochromis niloticus) only during the nonreproductive period of its annual cycle, corresponding to the winter months. in kingfish (odonthestes perugiae), the enzymatic reaction was identified during the non-reproductive period (summer) in epithelial cells of the efferent ducts but not in sertoli cells. these data su ... | 2004 | 15744426 |
| tethering induces increased stress artifacts in social fish species. | behaviour of juvenile mulloway argyrosomus japonicus were investigated under laboratory conditions to determine the efficacy of estimating predation mortality using tethering. the occurrence and duration of stressed behaviour was evaluated for individual a. japonicus that were hooked but untethered, hooked and tethered and unhooked and untethered (free swimming), both in schools and in isolation. tethered and hooked treatments showed a significantly higher incidence and duration of stressed beha ... | 2009 | 20735651 |
| isolation and characterization of 15 polymorphic microsatellite dna loci from argyrosomus japonicus (mulloway), a new aquaculture species in australia. | fifteen microsatellite loci were isolated for population genetic studies of mulloway (argyrosomus japonicus), a commercial/recreational fish species in southern australia. a genomic library was screened randomly for di- tri- and tetranucleotide repeats. fifteen microsatellite marker loci were developed that were highly polymorphic (allele number ranged from four to 18). observed and expected heterozygosities ranged from 0.17 to 1 and from 0.27 to 0.91, respectively. these markers have proven use ... | 2009 | 21564665 |
| protein and energy utilization and the requirements for maintenance in juvenile mulloway (argyrosomus japonicus). | this study describes the digestible protein (dp) and digestible energy (de) utilization in juvenile mulloway, and determined the requirements for maintenance. this was achieved by feeding triplicate groups of fish weighing 40 or 129 g held at two temperatures (20 or 26 degrees c), on a commercial diet (21.4 g dp mj de(-1)) at four different ration levels ranging from 0.25% of its initial body weight to apparent satiation over 8 weeks. weight gain and protein and energy retention increased linear ... | 2010 | 19109760 |