Total fat and fatty acid composition of seven fresh-water and nine marine fish commercially important in Brazil were determined. Palmitic acid was the predominant saturated fatty acid in both freshwater and marine fish. In the fat from freshwater fish the total C-16 fatty acids were higher than in marine fish. Oleic acid was the most abundant monounsaturated fatty acid and it was found in highe...

Background: Histamine is an essential biogenic amine produced as a result of microbial decomposition of histidine during seafood processing and storage. The objective of this study was to evaluate histamine concentration in freshwater and marine fish marketed in Stara Zagora region, Bulgaria. Methods: Forty fish samples were purchased from local fish farms and retail stores in Stara Zagora, Bu...

  Two hundred forty seven species of parasites from Iranian freshwater fishes are presented in this synopsis. The parasites were recorded from infestations in fish from different parts of the country and summarized according to host species, organs were the parasite infestations occurred, province, faunal region and reference numbers. The following aspects of parasite infestations were also dis...

The Cape Verdean islands form a distinct aquatic freshwater ecoregion characterized mainly by temporal water bodies with an adapted invertebrate community. Freshwater fish were not previously recorded from the archipelago. During a non-exhaustive survey of freshwater bodies on five islands of the archipelago, the first presence of a freshwater fish was recorded. Using barcoding sequences, the s...

We used nestedness analysis to seek non-random patterns in the structure of component communities of metazoan parasites collected from 31 sympatric fish species from the northeastern Bothnian Bay, the most oligohaline area of the Baltic Sea. Only 8 marine parasite species were found among the 63 species recorded, although some marine fish species reproduce in the bay and others occasionally vis...

Species identification Gyrodactylids are ubiquitous monogenean ectoparasites on the skin and gills of teleost fish both in marine and freshwater ecosystems. The most recent species compilation lists some 400 gyrodactylid species. Gyrodactylus salaris is a species of this genus found on fins and skin of Atlantic and Baltic salmon in its freshwater phase (Figure 1). The small (0.5 1 mm) parasite ...

the purpose of this experiment was to evaluate the effects of salinity on growth parameters and intestine morphology of the caspian white fish. experiment were used with four treatments include,(freshwater (0ppt), brackish water (5ppt), abrupt transition of fish to the salt water 10ppt: )the fish were transferred from fresh water to salt water immediately) and gradual transition of fish to the ...

BACKGROUND Large-scale inter-basin water transfer (IBWT) projects are commonly proposed as solutions to water distribution and supply problems. These problems are likely to intensify under future population growth and climate change scenarios. Scarce data on the distribution of freshwater fishes frequently limits the ability to assess the potential implications of an IBWT project on freshwater ...

To investigate the association between intake of freshwater fish and their fatty acids and the risk of breast cancer in Chinese women, we conducted a case-control study with 669 cases and 682 population-based controls in Jiangsu Province of China. A structured questionnaire was used to elicit detailed information. Unconditional logistic regression analysis was performed to calculate odds ratios...

Figure 1. Types and distribution of electric fish. Species of electric fish can be found in freshwater rivers of Africa and South America, as well as marine environments. Marine species are depicted in blue, freshwater species in yellow. Strongly electric fish use electricity to stun their prey, while weakly electric fish use electricity for sensing and communication. The waveform above each fi...