Reflection of hydrocarbon pollution on hepatic EROD activity in the black goby (Gobius niger).

Variability of GnRH secretion in two goby species with socially controlled alternative male mating tactics.

Male reproductive phenotypic plasticity related to environmental-social conditions is common among teleost fish. In several species, males adopt different mating tactics depending on their size, monopolizing mates when larger, while parasitizing dominant male spawns when smaller. Males performing alternative mating tactics are often characterized by a strong dimorphism in both primary and secon...

Effect of water quality on hematological and biochemical parameters of Gobius niger caught in Faro lake (Sicily)

Effect of water quality on hematological and biochemical parameters of Gobius niger caught in Faro lake (Sicily)

Environmental Chemistry EXPOSURE OF NORTHERN LEOPARD FROGS IN THE GREEN BAY ECOSYSTEM TO POLYCHLORINATED BIPHENYLS, POLYCHLORINATED DIBENZO-P-DIOXINS, AND POLYCHLORINATED DIBENZOFURANS IS MEASURED BY DIRECT CHEMISTRY BUT NOT HEPATIC ETHOXYRESORUFIN-O-DEETHYLASE ACTIVITY

We measured concentrations of polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs), and polychlorinated dibenzofurans (PCDFs) in northern leopard frogs collected from the Green Bay ecosystem and explored the catalytic activity of hepatic cytochrome P450-associated monooxygenase (P450 enzyme) as a biomarker for exposure to aryl hydrocarbon receptor (AhR) agonists. The two ...

EROD activity and stable isotopes in seabirds to disentangle marine food web contamination after the Prestige oil spill.

In this study, we measured via surgical sampling hepatic EROD activity in yellow-legged gulls from oiled and unoiled colonies, 17 months after the Prestige oil spill. We also analyzed stable isotope composition in feathers of the biopsied gulls, in an attempt to monitor oil incorporation into marine food web. We found that yellow-legged gulls in oiled colonies were being exposed to remnant oil ...