Many laboratory studies have documented that mercury can be toxic to fish, but it is largely unknown if mercury is toxic to fish in their natural environments. The objective of our study was to investigate the toxic effects of mercury on northern pike (Esox lucius) at Isle Royale, Michigan. In 124 northern pike from eight inland lakes, concentrations of total mercury in skin-on fillets ranged f...

The practice of antimicrobial usage in African catfish (Clarias gariepenius) production and the presence of antimicrobial residue in catfish in Oyo State were investigated by cross sectional study. Twenty commercial fish farmers were interviewed using interviewers administered semi-structured questionnaire on the pattern of antibiotic usage, knowledge of occurrence and risks of antimicrobial re...

Recent EU directives and regulations for quality control and authentication of food products have prompted the development of new methods for large-scale tests to ensure the protection of consumers. In view of this, an innovative method based on MALDI-TOF mass spectrometry has been developed and successfully applied to fish authentication. Highly specific mass spectrometric profiles from 25 dif...

Market policies have profound implications for consumers as well as for the management of resources. One of the major concerns in fish trading is species mislabelling: the commercial name used does not correspond to the product, most often because the product is in fact a cheaper or a more easily available species. Substitution rates depend heavily on species, some often being sold mislabelled ...

This study was conducted to evaluate the effects of herbal extracts on quality striped catfish (Pangasianodon hypophthalmus) fillets throughout storage period. Quality changes during ice were studied after dip treatments in aqueous solutions ethanolic extract Phyllanthus amarus (0.02% and 0.04%, w/v) or Euphorbia hirta (0.06% 0.02%, w/v). The control (dipped tap water) treated fish samples anal...

the silver carp (hypophthalmicthys molitrix) compnses about 50% to 85% of the composition offish species in the polyculture system of warm water species in iran. however, the difficulty in preparation of this species and the presence of pin bones are among the main reasons to restrict the demand of this species in the domestic markets, particularly in non­ coastal provinces. the objective of th...

The aim of this study was to investigate the effect of various cooking techniques on the fatty acid and oxylipin content of farmed rainbow trout. Rainbow trout is an excellent source of long-chain omega-3 (n-3) polyunsaturated fatty acids (PUFA) which have beneficial health effects. Fillets of 2-year-old farmed rainbow trout were baked, broiled, microwaved, or pan-fried in corn (CO), canola (Ca...

Raw breast fillets were divided into two groups and either vacuum or aerobically packaged. The fillets in each group were subdivided equally into two groups and then irradiated at 0 or 3 kGy using a Linear Accelerator. After 0, 3 and 7 days of storage at 4 °C, fillets were cooked in an 85 °C water bath (cook-in-bag) to an internal temperature of 74 °C. Oxidation-reduction potential (ORP) of raw...

In this study, we investigated the properties of mitochondria to discriminate fresh from frozen-thawed fish fillets. Mitochondria were isolated gilthead seabream fillets and impact freezing was evaluated by measuring permeability mitochondrial membranes. Freezing led permeabilization inner membranes reduced nicotinamide adenine dinucleotide (NADH). The increase in related shock compared physiol...