Commercial fishers have used fish aggregating devices throughout the Mediterranean Sea for over 40 years. These devices attract numerous predatory and forage species in both coastal and offshore environments. This study examined the influence of fish aggregating devices on schooling and aggregating behaviour by small forage fish in quasi-natural mesocosms. Anti-predator behaviour was evaluated ...

The bactericidal activity of gaseous ozone was investigated using a commercial ozone generator. Five species of fish bacteria, Pseudomonas putida, Shewanella putrefaciens, Brochothrix thermosphacta, Enterobacter sp. and Lactobacillus plantarum, were inoculated on agar surfaces and exposed to different ozonation times in a gas chamber. Results showed ozone in relatively low concentrations (< 0.2...

Ecological studies on commercial important fish species are of great value to support resource management issues. This study calculated trophic levels of those Colombian Caribbean fish species whose diet has been locally described. Usable diet data of 119 species resulted in 164 trophic level estimates. An ordinary regression model relating trophic level and fish size was formulated. The regres...

201 Comparison of ω-3 Fatty Acids by GC-MS in Frequently Consumed Fish and Fish Oil Preparations on the Turkish Market Summary : In this study, two fish species, anchovy (Engraulis encrasicholus) and horse mackerel (Trachurus trachurus), and three commercial fish oil products sold on the Turkish market were analyzed and compared by gas chromatography-mass spectrometry (GC-MS) according to their...

Marine reserves are widely used throughout the world to prevent overfishing and conserve biodiversity, but uncertainties remain about their optimal design. The effects of marine reserves are heterogeneous. Despite theoretical findings, empirical studies have previously found no effect of size on the effectiveness of marine reserves in protecting commercial fish stocks. Using 58 datasets from 19...

the stimulatory effect of ovaprim, a commercial spawning inducing agent consisting of salmon gonadotropin releasing analogue (gnrha) and a dopamine d2- receptor antagonist, domperidone, was studied in doctor fish, garra rufa (heckel, 1843) under hatchery conditions. the feeding and rearing condition effects on the survival rate of naturally produced larvae were also evaluated. twenty-five fish ...

The present study was carried out to examine the chemopreventive effects of 5-fluorouracil (5-FU) and lactoferrin (LF) on goldfish intestinal carcinogenesis induced by 1,2-dimethylhydrazine (DMH). DMH was given to fish by intraperitoneal injection in a dosage of 15 mg/kg body weight once a week for 6 weeks. Eight weeks after the initial DMH injection, fish were randomly divided into 2 groups, c...

The unnecessary death of juvenile and mature individuals of commercial species undermines the health of stocks and jeopardizes future yields, threatening the long term economic sustainability of European fisheries. Moreover the capture of non-commercial species (fish, sea birds, sponges...) severely impacts the marine environment by disrupting the balance of the ecosystem and attacking its biod...