Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| 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 |
| studies of tropical tuna swimming performance in a large water tunnel - energetics | the metabolic rates (v(dot)o2) of three tropical tunas [yellowfin tuna (thunnus albacares), kawakawa (euthynnus affinis) and skipjack (katsuwonus pelamis)] were estimated using a large water-tunnel respirometer. experiments lasting up to 31 h were used to determine the effects of velocity (u) on tuna v(dot)o2 over a range of u (17-150 cm s-1) and temperatures (18­30°c). replicate tests were carried out on several fish. the swimming v(dot)o2 of yellowfin is temperature-dependent (q10=1.67 ... | 1994 | 9317243 |
| acanthocephala of marine fishes off fiji islands, with descriptions of filisoma longcementglandatus n. sp., neorhadinorhynchus macrospinosus n. sp. (cavisomidae), and gravid females of rhadinorhynchus johnstoni (rhadinorhynchidae); and keys to species of the genera filisoma and neorhadinorhynchus. | a parasitological collection from marine fishes off the fiji islands yielded 5 species of acanthocephalans from 4 species of fish as follows: filisoma longcementglandatus n. sp. from scat scatophagus argus; neorhadinorhynchus macrospinosus n. sp. from vermiculated rabbit fish siganus vermicularis; neorhadinorhynchus nudum (harada, 1938) yamaguti, 1939 (cavisomidae) from mackerel tuna euthynnus affinis; rhadinorhynchus johnstoni golvan, 1969 (rhadinorhynchidae) from e. affinis; and neoechinorhync ... | 1994 | 7931911 |
| maximum sustainable speeds and cost of swimming in juvenile kawakawa tuna (euthynnus affinis) and chub mackerel (scomber japonicus). | tunas (scombridae) have been assumed to be among the fastest and most efficient swimmers because they elevate the temperature of the slow-twitch, aerobic locomotor muscle above the ambient water temperature (endothermy) and because of their streamlined body shape and use of the thunniform locomotor mode. the purpose of this study was to test the hypothesis that juvenile tunas swim both faster and more efficiently than their ectothermic relatives. the maximum sustainable swimming speed (u(max), t ... | 2000 | 11003820 |
| swimming kinematics of juvenile kawakawa tuna (euthynnus affinis) and chub mackerel (scomber japonicus). | the swimming kinematics of two active pelagic fishes from the family scombridae were compared to test the hypothesis that the kawakawa tuna (euthynnus affinis) uses the thunniform mode of locomotion, in which the body is held more rigid and undergoes less lateral movement in comparison with the chub mackerel (scomber japonicus), which uses the carangiform swimming mode. this study, the first quantitative kinematic comparison of size-matched scombrids, confirmed significantly different swimming k ... | 2000 | 11003821 |
| community structure of helminth parasites of the tuna, euthynnus affinis, from the visakhapatnam coast, bay of bengal. | an analysis is made of the community structure of the helminth parasites of the tuna euthynnus affinis collected off the coast of visakhapatnam, bay of bengal. the helminth fauna comprised 23 species, consisting of two monogeneans, 18 digeneans, one larval cestode, one nematode and one acanthocephalan. didymozoids, represented by 14 species, were the dominant members of the parasite spectrum. the parasite assemblage is characterized by species richness as well as a high diversity. most of the pa ... | 2000 | 11138023 |
| synaptobothrioides sardinellae n. g., n. sp. (digenea: hemiuridae) from the blacktip sardinella sardinella melanura (clupeidae) off fiji, and records of two other hemiuroids in fijian waters. | synaptobothrioides sardinellae n. g., n. sp. is described from sardinella melanura off fiji. the new genus differs from other plerurine hemiurid genera in having entire or angular, rather than lobed to digitiform, vitelline masses. it appears closest to synaptobothrium, but differs in the lack of a presomatic pit and the presence of tegumental plications. lecithochirium kawakawa from euthynnus affinis and thulinia microrchis from siganus spinus are reported from off fiji. | 2002 | 12075154 |
| monogenea of arabian gulf fishes. 1. descriptions of three capsala spp. (capsalidae) including capsala naffari n. sp. infecting mackerel tuna euthynnus affinis from coasts of emirates. | three species of the genus capsala including capsala naffari n. sp., c. neothunni (yamaguti, 1968) and c. nozawae (goto, 1894) are recorded and described from the buccal cavity of mackerel tuna euthynnus affinis caught from emirate coasts. capsala naffari can be differentiated by its lateral spiniform teeth, which extend posteriorly, small measurements compared with the closely resembled c. gotoi and relatively large testes. this is the first record of the genus capsala from arabian gulf fishes ... | 2002 | 12421630 |
| genetic markers in the study of anisakis typica (diesing, 1860): larval identification and genetic relationships with other species of anisakis dujardin, 1845 (nematoda: anisakidae). | genetic variation at 21 gene-enzyme systems was studied in a sample of an adult population of anisakis typica (diesing, 1860) recovered in the dolphin sotalia fluviatilis from the atlantic coast of brazil. the characteristic alleles, detected in this population, made it possible to identify as a. typica, anisakis larvae with a type i morphology (sensu berland, 1961) from various fishes: thunnus thynnus and auxis thazard from brazil waters, trachurus picturatus and scomber japonicus from madeiran ... | 2002 | 11912342 |
| acute co2 tolerance during the early developmental stages of four marine teleosts. | ocean sequestration of co2 is proposed as a possible measure to mitigate climate changes caused by increasing atmospheric concentrations of the gas, but its impact on the marine ecosystem is unknown. we investigated the acute lethal effect of co2 during the early developmental stages of four marine teleosts: red sea bream (pagrus major), japanese whiting (sillago japonica), japanese flounder (paralichthys olivaceus), and eastern little tuna (euthynnus affinis). the percentages of larvae that hat ... | 2003 | 14608607 |
| swimming performance studies on the eastern pacific bonito sarda chiliensis, a close relative of the tunas (family scombridae) ii. kinematics. | the swimming kinematics of the eastern pacific bonito sarda chiliensis at a range of sustained speeds were analyzed to test the hypothesis that the bonito's swimming mode differs from the thunniform locomotor mode of tunas. eight bonito (fork length fl 47.5+/-2.1 cm, mass 1.25+/-0.15 kg) (mean +/- s.d.) swam at speeds of 50-130 cm s(-1) at 18+/-2 degrees c in the same temperature-controlled water tunnel that was used in previous studies of tunas. kinematics variables, quantified from 60 hz video ... | 2003 | 12847120 |
| two new hemiurine species (digenea: hemiuridae) from spratelloides robustus ogilby (clupeiformes: clupeidae) off south-western australia and records of parahemiurus merus (linton, 1910) from australian and new caledonian waters. | two new species of hemiurine hemiurid are described from spratelloides robustus off woodman point in southern western australia. hemiurus lignator n. sp. differs from its congeners by a combination of similar-sized suckers, long sinus-sac, tandem testes, relatively elongate shape and unthickened seminal vesicle wall. parahemiurus xylokopos n. sp. differs from its congeners in a combination of its squat form, its distinctly lobed vitellarium and the proximity of the gonads to the ventral sucker. ... | 2005 | 15864457 |
| evaluating mercury biomagnification in fish from a tropical marine environment using stable isotopes (delta13c and delta15n). | concentrations of total mercury (t-hg) and methylmercury (mehg) were measured in zooplankton and 13 fish species from a coastal food web of the gulf of oman, an arm of the arabian sea between oman and iran. stable isotope ratios (delta13c and delta15n) also were determined to track mercury biomagnification. the average concentration of t-hg in zooplankton was 21 +/- 8.0 ng g(-1) with mehg accounting 10% of t-hg. total mercury levels in fish species ranged from 3.0 ng g(-1) (sardinella longiceps) ... | 2007 | 17702328 |
| the effect of different atmospheric conditions on the changes in myoglobin and colour of refrigerated eastern little tuna (euthynnus affinis) muscle. | oxidation of myoglobin is responsible for the undesirable appearance and loss in acceptability of fish and fish products. the retardation of such a change by a modification of the surrounding atmosphere would be a means to maintain the quality of fish during the refrigerated storage. | 2011 | 21328356 |
| effect of myoglobin from eastern little tuna muscle on lipid oxidation of washed asian seabass mince at different ph conditions. | the effect of ph (6.0, 6.5, and 7.0) on lipid oxidation in washed asian seabass (lates calcarifer) mince mediated by oxymyoglobin from the dark muscle of little eastern tuna (euthynnus affinis) during 8 d of refrigerated storage was studied. metmyoglobin formation and discoloration increased with increasing storage time and the changes were more pronounced at lower ph. the highest lipid oxidation and off-odor development were observed when myoglobin was incorporated in washed mince at ph 6.0. at ... | 2011 | 21535742 |
| maximum sustainable speed, energetics and swimming kinematics of a tropical carangid fish, the green jack caranx caballus. | maximum sustained swimming speeds, swimming energetics and swimming kinematics were measured in the green jack caranx caballus (teleostei: carangidae) using a 41 l temperature-controlled, brett-type swimming-tunnel respirometer. in individual c. caballus [mean ±s.d. of 22·1 ± 2·2 cm fork length (l(f) ), 190 ± 61 g, n = 11] at 27·2 ± 0·7° c, mean critical speed (u(crit)) was 102·5 ± 13·7 cm s⁻¹ or 4·6 ± 0·9 l(f) s⁻¹. the maximum speed that was maintained for a 30 min period while swimming steadil ... | 2012 | 22650430 |
| whale sharks, rhincodon typus, aggregate around offshore platforms in qatari waters of the arabian gulf to feed on fish spawn. | whale sharks, rhincodon typus, are known to aggregate to feed in a small number of locations in tropical and subtropical waters. here we document a newly discovered major aggregation site for whale sharks within the al shaheen oil field, 90 km off the coast of qatar in the arabian gulf. whale sharks were observed between april and september, with peak numbers observed between may and august. density estimates of up to 100 sharks within an area of 1 km(2) were recorded. sharks ranged between four ... | 2013 | 23516456 |
| length frequency distribution, mortality rate and reproductive biology of kawakawa (euthynnus affinis-cantor, 1849) in the coastal waters of tanzania. | this study explored important aspect of the basis for the highly complex population of kawakawa (euthynnus affinis) within the coastal waters of tanzania; by investigating length frequency distribution, mortality rate and reproductive characteristics. this information is essential for the sustainable management of the regionally-important recreational and economic e. affinis fishery. fish were sampled on a monthly basis for two monsoon seasons using a ring net and artisanal fishermen boat. maxim ... | 2013 | 24511734 |
| occurrence and molecular identification of anisakis dujardin, 1845 from marine fish in southern makassar strait, indonesia. | anisakis spp. (nematoda: anisakidae) parasitize a wide range of marine animals, mammals serving as the definitive host and different fish species as intermediate or paratenic hosts. in this study, 18 fish species were investigated for anisakis infection. katsuwonus pelamis, euthynnus affinis, caranx sp., and auxis thazard were infected with high prevalence of anisakis type i, while cephalopholis cyanostigma and rastrelliger kanagurta revealed low prevalence. the mean intensity of anisakis larvae ... | 2014 | 24623876 |
| hearing thresholds of swimming pacific bluefin tuna thunnus orientalis. | pacific bluefin tuna (thunnus orientalis) is a highly migratory, commercially valuable species potentially vulnerable to acoustic noise generated from human activities which could impact behavior and fitness. although significant efforts have been made to understand hearing abilities of fishes, the large size and need to continuously swim for respiration have hindered investigations with tuna and other large pelagic species. in this study, pacific bluefin tuna were trained to respond to a pure t ... | 2015 | 25732931 |
| small-scale capture, transport and tank adaptation of live, medium-sized scombrids using "tuna tubes". | the transport of live fish is a crucial step to establish fish culture in captivity, and is especially challenging for species that have not been commonly cultured before, therefore transport and handling methods need to be optimized and tailored. this study describes the use of tuna tubes for small-scale transport of medium-sized pelagic fish from the scombridae family. tuna tubes are an array of vertical tubes that hold the fish, while fresh seawater is pumped up the tubes and through the fish ... | 2015 | 26543739 |
| feeding ecology of some fish species occurring in artisanal fishery of socotra island (yemen). | the demersal species lethrinus borbonicus, lethrinus mahsena, lethrinus microdon, lethrinus nebulosus, lutjanus bohar, lutjanus gibbus, lutjanus kasmira, epinephelus fasciatus, epinephelus stoliczkae, carangoides gymnostethus and euthynnus affinis are important coastal fishes species of the northern coast of socotra (yemen), exploited by local fishery. the biology and feeding ecology of these species are poorly known in the area. a total of 1239 specimens were sampled from the main fishing landi ... | 2016 | 26880127 |
| mitochondrial dna variation and phylogenetic relationships among five tuna species based on sequencing of d-loop region. | in order to assess the dna sequence variation and phylogenetic relationship among five tuna species (auxis thazard, euthynnus affinis, katsuwonus pelamis, thunnus tonggol, and t. albacares) out of all four tuna genera, partial sequences of the mitochondrial dna (mtdna) d-loop region were analyzed. the estimate of intra-specific sequence variation in studied species was low, ranging from 0.027 to 0.080 [kimura's two parameter distance (k2p)], whereas values of inter-specific variation ranged from ... | 2016 | 25329285 |
| baseline concentration of polonium-210 ((210)po) in tuna fish. | several species of tuna fish were analyzed for (210)po content in their edible muscle tissues. this study was carried out as a part of baseline data generation around a large nuclear power plant situated at kudankulam, southeast coast of india. the concentration of (210)po in the muscle tissue ranged from 40.9±5.2 to 92.5±7.9bq/kg of fresh fish, and the highest activity was recorded for the tuna euthynnus affinis and the lowest for auxis thazard. the committed effective dose to the local residen ... | 2016 | 27045047 |
| complete mitochondrial genome of the kawakawa tuna euthynnus affinis. | the present study represents the first report on the complete mitochondrial genome (mitogenome) of the kawakawa tuna euthynnus affinis. illumina next-generation sequencing generated a total of 38,428 reads with an average sequencing depth of 232.83×. the mitogenome of e. affinis was 16,513 bp in length and contains 13 protein-coding genes, 2 rrna genes, 22 trna genes and a 849 bp control region, as found in other typical teleosts. with the exception of nd6 and eight trna genes, all other mitocho ... | 2016 | 25427815 |