Shrimp of the Sakhalin Bay (Sea of Okhotsk): Size and Sex Composition and Nutrition in July-August 2016–2017

In 10 samples from bottom trawling catches carried out in the Sakhalin Bay in July-August 2016–2017, 6 species of caridea shrimp were found at depths of 53–66 m: (Krøyer 1841), (Kobjakova 1936), Kobjakova 1936, Rathbun 1902, Brandt 1851 and Owen 1839. The biological state of 796 shrimp samples was studied, including 466 stomachs with food for the analysis of food composition. These shrimps are inhabitants of the shelf and its edge to depths of 400 m and belong to different life forms: – burrowing. spp. and – epibenthic, – bottom-bottom. All of them differ in size composition and sex ratio, but at the same time, individuals preparing for spawning or just spawned absolutely predominate among the females: the periphery of the Sakhalin Bay, at least in July and August, represent the spawning ground of these shrimps. By the nature of their diet, they are collectors of benthic detritophages and benthic necrophages and predators.