| [diversity, abundance and icthyofaunistic groups of the chantuto-panzacola lagoon-estuarine system, chiapas, méxico]. | in the chantuto-panzacola system, chiapas, méxico, a study of a fish community was carried out between march and november of 1997. from a total of 1456 fish collected, 31 species, 25 genera and 19 families had been identified. the diversity and abundance were high in march with h'= 2.67 bits/ind, d = 3.89 sp/ind, biomass 1.88 g/m2. density 0.25 ind/m2 and average weight 7.55 g/ind. significant differences were found between the ecological parameters and the environmental variables of the ecosyst ... | 2004 | 17357416 |
| a new genus and species of philometrid (nematoda) from the subcutaneous tissue of the crevalle jack, caranx hippos (osteichthyes), from the southern gulf of mexico. | a new genus and species of nematode, caranginema americanum n. gen., n. sp. (philometridae), are described from gravid, subgravid, and nongravid female specimens collected from the subcutaneous tissue of the fish (crevalle jack) caranx hippos (carangidae, perciformes) from the coral reef el cabezo, southern gulf of mexico, mexico. caranginema, assigned to the philometrinae, differs from other genera of this subfamily mainly in the presence of 2 conspicuous parallel cordons on either side, extend ... | 2008 | 18576858 |
| identifying pelagic fish eggs in the southeast yucatan peninsula using dna barcodes. | in the waters surrounding banco chinchorro in the mexican caribbean are spawning and nursery areas for many types of fish. in this natural environment, as opposed to under controlled laboratory conditions, it is almost impossible to link an individual egg to the adult that laid it. this makes identifying the species of the eggs difficult. however, dna barcodes have made this easier. in the present study, 300 eggs were processed for molecular analysis, from which 139 sequences were obtained. we i ... | 2016 | 27753507 |
| biomagnification of mercury through a subtropical coastal food web off southwest florida. | total mercury and stable isotopes of nitrogen (δ(15) n) were measured in samples from 57 species of invertebrates (17 species) and finfish (40 species) from the coastal waters off southwest florida, usa, to evaluate the biomagnification of mercury through the food web. mercury concentrations (wet wt) and δ(15) n values were highly variable among species, ranging from 0.004 mg/kg in an unidentified species of brittlestar (class ophiuroidea) to 2.839 ± 1.39 mg/kg in king mackerel (scomberomorus ca ... | 2014 | 24123350 |
| metal-sensitive and thermostable trypsin from the crevalle jack (caranx hippos) pyloric caeca: purification and characterization. | over the past decades, the economic development and world population growth has led to increased for food demand. increasing the fish production is considered one of the alternatives to meet the increased food demand, but the processing of fish leads to by-products such as skin, bones and viscera, a source of environmental contamination. fish viscera have been reported as an important source of digestive proteases with interesting characteristics for biotechnological processes. thus, the aim of ... | 2013 | 24112762 |
| new observations on philometrid nematodes (philometridae) in marine fishes from the northern gulf of mexico and the indian river lagoon of florida (usa), with first description of the male of caranginema americanum. | the following 3 species of philometra costa, 1845 (nematoda: philometridae) were recorded from marine fishes off florida: caranginema americanum moravec, montoya-mendoza and salgado-maldonado, 2008 from the subcutaneous tissue of the crevalle jack caranx hippos (linnaeus) (carangidae); philometra charlestonensis moravec, de buron, baker and gonzález-solís, 2008 from the gonads (ovaries) of the scamp mycteroperca phenax jordan and swain (serranidae); and philometra sp. (only subgravid females) fr ... | 2012 | 22017549 |
| nematode infection in fish from cartagena bay, north of colombia. | parasitic nematode infection indices were recorded in different fish species collected at cartagena bay, north of colombia. among 19 studied species, the mugil genus presented the highest prevalence (83.9-100%), although sciades herzbergii, caranx hippos and centropomus undecimalis were also found infected with nematodes. parasites were found in the liver, intestinal mesenteries and encysted near the intervertebral joints, with an average parasite abundance of 4.0 ± 0.3 nematodes per fish. morph ... | 2011 | 21168279 |
| philometrid nematodes infecting fishes from the everglades national park, florida, u.s.a. | the following three species of the philometridae (nematoda: dracunculoidea) are described from marine perciform fishes of the everglades national park (northern gulf of mexico), florida, u.s.a.: philometra brevispicula sp. n. (male and females) from the subcutaneous tissue of mouth of the gray snapper lutjanus griseus (linnaeus) (lutjanidae), philometroides grandipapillatus sp. n. (only females) from pectoral fin muscle of the crevalle jack caranx hippos (linnaeus) (carangidae), and caranginema ... | 2010 | 20941913 |
| rapid communication: experimental evidence that juvenile pelagic jacks (carangidae) respond behaviorally to dmsp. | dimethylsulfoniopropionate (dmsp) is produced by marine algae and released during foraging activity by zooplankton and fish. pelagic fishes depend on patchily distributed foraging opportunities, and dmsp may be an important signaling molecule for these events. we have previously shown that the abundance of carangid jacks is positively associated with elevated dmsp levels over coral reefs in the gulf of mexico, suggesting that these fishes may use spatial and temporal variation in dmsp to locate ... | 2010 | 20177745 |
| mercury contamination in freshwater, estuarine, and marine fishes in relation to small-scale gold mining in suriname, south america. | the extent of mercury contamination in surinamese food fishes due to small-scale gold mining was investigated by determination of the total mercury concentration in 318 freshwater fishes, 109 estuarine fishes, and 110 fishes from the atlantic ocean. high background levels were found in the piranha serrasalmus rhombeus (0.35 microg hg x g(-1) muscle tissue, wet mass basis) and the peacock cichlid cichla ocellaris (0.39 microg x g(-1)) from the central suriname nature reserve. average mercury leve ... | 2001 | 11437465 |
| distribution of selected heavy metals in skin and muscle of five tropical marine fishes. | an investigation was carried out to determine the effect of tissue type, tissue location and size of fish on the heavy metal levels of five species of fish found in the marine environment of the tropical island of trinidad. the study was conducted with the fish species lutjanus synagris, micropogon furnieri, cynoscion leiarchus, caranx hippos and scomberomorus brasiliensis, and focused on the muscle and skin tissues of the fillet of these fish. the metals fe, zn, cu, ni, pb, cd and cr were analy ... | 1991 | 15092162 |