One of the effects of fisheries on ecosystems is that they tend to remove the larger, higher-trophic-level species and thus progressively lower the mean trophic level (TL) of the landings. This effect is known as “fishing down the food web” (Pauly et al. 1998; but see also Essington et al. [2006] for addition of low-TL fisheries instead of decline in high-TL fisheries, termed “fishing through m...

This study was performed to measure the possible persistence of formaldehyde, active substance formalin solution, in seawater and edible gilthead seabream (Sparus aurata) tissues after a bath. The trial carried out during summer period as parasitic infestations are high frequency. Water samples were taken within or at short distance from treatment cages, following immersion. Fish fillets also s...

This paper extends the literature on price-integration in gilthead seabream (Sparus aurata) market Spain by shedding new light established relationships using additional data allowing investigation of importance origin. Although conclusions for overall are line those previously reported integration and price transmission domestic value chain, there significant differences across series when is ...

The interaction between essential dietary components and changes in tissue nutrient reserves, egg quality and egg composition, were studied from 60 d before and during the spawning of Sparus aurata broodstock. Fish were given isonitrogenous (550 g/kg dry weight) and isolipidic (100 g/kg dry weight) diets, based on protein and lipid extracts of squid meal. Diets differed in the levels of n-6 (10...