Research of interrenal and chromaffin glands in barfin plaice Liopsetta pinnifasciata from Amursky Bay (Peter the Great Bay, Sea of Japan)

Studies of the barfin plaice Liopsetta pinnifasciata inhabiting Amursky Bay (Peter the Great Bay, Sea of Japan) performed in 1999–2005 showed a twofold reduction in the area of cell nuclei of the interrenal and chromaffin glands after 2001, which indicates a significant weakening of the damaging effect of the environment on fish. It is assumed that one of the main causes of the hypertrophy of both glands in barfin plaices before 2001 was the phenolic pollution of the environment. The study points to the sensitivity of the adrenal system of the barfin plaice to changes in the quality of environment.