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lymphocystis in cultured snapper (pagrus auratus) and wild kingfish (seriola lalandi) in australia. 19921627088
benedeniine capsalid monogeneans from australian fishes: pathogenic species, site-specificity and camouflage.there are about 70 species of capsalid monogeneans in the benedeniinae worldwide but only about half are described from the diverse fish fauna in the pacific ocean. up to 1992, only five species of benedeniines were known from australia. two potentially destructive species of benedeniines, benedenia seriolae from seriola lalandi and b. sciaenae from argyrosomus hololepidotus from temperate australian waters, are new host and geographic records for these monogeneans. a survey of some fishes from ...19968960215
mutagencity and antimutagencity studies of lipidic extracts from yellowtail fish (seriola lalandi), lisa fish (mugil cephalus) and cazón fish (mustelus lunulatus).organic extracts from fresh and smoked yellowtail fish (seriola lalandi), lisa fish (mugil cephalus) and cazon fish (mustelus lunulatus) were tested for mutagenicity using ames salmonella tester strains ta98 and ta100 with metabolic activation (s9). also, the antimutagenicity of the organic extract from yellowtail fish was tested against aflatoxin b1 (afb1). yellowtail fish extract was sequentially fractionated by thin-layer chromatography (tlc) and each fraction was also tested for antimutageni ...200212387311
redescription of allencotyla mcintoshi price, 1962 (monogenea), with an emended diagnosis of allencotyla price, 1962.the original description of the type species of allencotyla, a. mcintoshi price, 1962, was based on 5 specimens collected from 1 amberjack seriola lalandi in florida. in this study, a. mcintoshi is redescribed based on new specimens collected from juvenile greater amberjacks s. dumerili captured off the spanish mediterranean coast and maintained in experimental culture tanks. except for a slightly smaller size, individuals of s. dumerili were morphologically similar to the type specimens. howeve ...200312659315
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 ...200415722083
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 ...200515892750
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 ...200616724567
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 ...200616985209
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 ...200717267264
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 ...200717465308
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 ...200717912616
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 ...200718062471
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 ...200818380221
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 ...200919256082
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 ...201020381631
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 ...201020854300
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 ...201121562771
severe anisakiasis and cutaneous myxoma in a california yellowtail, seriola lalandi valenciennes. 201121762175
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- ...201122142628
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 ...201223275507
[anisakis simplex larvae: infection status in marine fishes for sale in shantou].to investigate the infection status of anisakis simplex larvae in marine fishes for sale in shantou.201425223058
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 ...201627786158
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, ...201726965950
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. 201627943365
patterns of genetic variation and life history traits of zeuxapta seriolae infesting seriola lalandi across the coastal and oceanic areas in the southeastern pacific ocean: potential implications for aquaculture.the monogenean, zeuxapta seriolae, is a host-specific parasite that has an extensive geographical distribution on its host, seriola lalandi, and is considered highly pathogenic in farmed fish. in recent years, developing cultures of s. lalandi in different coastal localities in southeastern pacific ocean (sep) have been affected by moderate and heavy infections of this parasite, attributed to contagion from wild to farmed fish. here, we evaluated the pattern of genetic variations and biological ...201525994495
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 ...201323812600
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 ...201728262464
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 ...201727781264
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 ...201627660829
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 ...201627660828
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 ...201627069576
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 ...201526401452
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). ...201626314575
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 ...201626230659
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 ...201526195109
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 ...201425723449
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 ...201525708429
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 ...201625683477
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 ...201525675086
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(- ...201425620933
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 ...201425082013
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 × ...201424632098
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 ...201424493298
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- ...201323791760
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 ...201323770893
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 ...201323398074
investigating causes of skeletal malformation in yellowtail kingfish seriola lalandi. 201325141630
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 ...201222899528
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 ...201222824208
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 ...201322527613
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 ...201222521527
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 ...201222361749
the genus rhadinorhynchus (acanthocephala: rhadinorhynchidae) from marine fish in australia with the description of four new species.species of rhadinorhynchus, collected from australian waters were examined. specimens of rhadinorhynchus from scorpis aequipinnis, girella tricuspidata, johnius australis and grammatobothus polyophthalmus could not be identified further. new host and locality records are reported for r. bicircumspinus found in trachurus declivis and rexea solandri from the east coast of tasmania; r. carangis found in trachinotus bailonii and t. copperingi from queensland and western australian coasts; r. polynem ...201425236286
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