The Benthic Fauna of the Lov Inlet (The Kandalaksha bay, the White Sea): up to Date and Forty Years Old Archival Material-Reference-Cited by-同舟云学术

The Benthic Fauna of the Lov Inlet (The Kandalaksha bay, the White Sea): up to Date and Forty Years Old Archival Material

Published:2018-12-25 Issue:4 Volume:322 Page:481-518
ISSN:0206-0477
Container-title:Proceedings of the Zoological Institute RAS
language:ru
Short-container-title:Proceedings ZIN

Author:

Naumov A.D.¹,Bijagov K.L.¹,Savchenko O.N.¹,Aristov D.A.¹,Usov N.L.¹

Affiliation:

1. Zoological Institute RAS, 199034, Universitetskaya nab, 1, Saint Petersburg, Russia

Abstract

Sea-floor communities of the scoop-type Lov Inlet (the White Sea, the Kandalaksha Bay) were investigated. The comparison with similar data from the beginning of 1970th was carried out. It was found that under the pycnocline the Arctic type fauna with dominating species Portlandia arctica still remains. Above the pycnocline, essential changes have been found in comparison with 40 years old data. Bivalve mollusks had been dominating in 1970-s, while now the Polychaeta species Alitta virens holds a leading position. Also, strong changes were observed within community of the head-inlet threshold. In 1970-s a dense settlement of brown algae Saccharina latissima had been recorded on the most of the area. In 2010-s, only single thalli of this species were encountered. The water-column structure was analyzed in details. Integrated vertical profiles of temperature, salinity and oxygen content were investigated. It was found out, that the oxycline was situated almost at the same depth with the pycnocline . The oxygen content increased with the depth. Such situation is possible only when deep-water exchange occurs during winter time. This allows to propose that in winter time cold water enriched by oxygen drains from the surface into scoops near-bottom water-layers. From our observations, it was suggested that the summer stratification of the Lov Inlet waters is a result of winter advective processes. The time of complete water exchange in the inlet was estimated on the base of data on the fresh-water drain and compensative reverse flow, using the model and taking into account mixing processes. This time is equal to approximately 200 years. It allowed to assess the risk managementof the inlet. As a result, we recommend to prohibit any activity which may restrict water-exchange and provoke organic pollution.

Publisher

Zoological Institute of the Russian Academy of Sciences

Subject

Insect Science,Animal Science and Zoology,Aquatic Science,Ecology, Evolution, Behavior and Systematics

Reference57 articles.

1. Armand A.D. and Samsonova L.Ya. 1969. Marine deposits and Holocene tectonic in the Kandalaksha area. In: M.K. Grave and B.I. Koshechkin (Eds). Main problems of geomorphology and Anthropogen stratigraphy of the Kola Peninsula. Nauka, Leningrad: 96–111. [In Russian].

2. Babkov A.I. 1995. Peculiarities of the hydrological regime in the Kandalaksha Bay and Onega Bay inlets. In: V.Ya. Berger (Ed). White Sea. Biological resources and problems of their rational exploitations. Explorations of the fauna of the seas, 42(50): 51–62. [In Russian].

3. Brotzkaja V.A., Jdanova N.N. and Semenova N.L. 1963. Sea bottom fauna of the Velikaya Salma Strait and adjacent areas of the Kandalaksha Bay, the White Sea. Proceedings of Kandalaksha State Reserve, 4; Proceedings of the White Sea Biological Station, Moscow State University, 2: 159–182. [In Russian].

4. Chava A.I., Udalov A.A., Vedenin A.A., Simakov M.I., Shchuka S.A. and Mokievsky V.O. 2017. Benthic fauna of the Tsivolka Bay (Novaya Zemlya Archipelago, the Kara Sea). Okeanologia, 57(1): 160–170. [In Russian]. https://doi.org/10.7868/S0030157417010014

5. Chechenkov A.V., Ivanov N.O., Legovich N.A. and Shustova N.K. 1982. The main features of hydrological, hydrochemical and biological structure of the Kanda Inlet, the Whine Sea. Increasing of productivity and rational exploitation of biological resources of the White Sea: Materials of I-th Coordination meeting. Leningrad: 23–25. [In Russian].

Cited by 1 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Ecology of Meromictic Lakes of Russia. 1. Coastal Marine Waterbodies;Water Resources;2021-05