Dependence of ecological characteristics of macrobenthos on content of organic matter in the coastal zone of the Japan Sea-Reference-Cited by-同舟云学术

Dependence of ecological characteristics of macrobenthos on content of organic matter in the coastal zone of the Japan Sea

Published:2014-03-30 Issue:1 Volume:176 Page:233-239
ISSN:2658-5510
Container-title:Izvestiya TINRO
language:
Short-container-title:Izv. Tihookean. naučno-issled. rybohoz. centra

Author:

Galysheva Yulia A.,Somov Alexey A.

Abstract

Inflow and accumulation of organic matter in the bays at Russian coast of the Japan Sea are evaluated using the data on chemical parameters of seawater and total content of carbon in the bottom sediments. Complex index of organic content in the environment (CIOCE) is proposed. Shannon diversity index (I) and the index of trophic structure disturbance (ITSD) are assessed for macrobenthos of these areas and compared with CIOCE; non-linear parabolic dependence is revealed with the 90 % confidence level. The value of CIOCE ecological optimum (when macrobenthos has the highest species diversity and healthy trophic structure) is determined as 1.5-2.5; both higher and lower CIOCE values cause reduction of species diversity and disturbance of trophic structure that means that the organic matter supply is favorable for macrobenthos until a certain threshold.

Publisher

FSBSI TINRO Center

Subject

Microbiology (medical),Immunology,Immunology and Allergy

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