The biological features of the Kildin cod, Gadus morhua kildinensis Derjugin, 1920 (Gadidae)

Stroganov, A. N.; Kriksunov, E. A.; Zuykova, N. V.; Mukhina, N. V.; Burmensky, V. A.; Семенова, А. В.; Шадрин, А. М.

doi:10.1134/s1063074015060140

Cited by 8 publications

(2 citation statements)

References 12 publications

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“…Changes in stratification of Lake Mogilnoe during the last decade are at odds with earlier hypotheses about factors affecting its dynamics. Some authors (Stroganov et al 2015) still adhere to the traditional paradigm about temporal invariability of the lake's ecosystem. This paradigm, dating back to Derjugin (1925), does not conform to the facts.…”

Section: Resultsmentioning

confidence: 99%

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Rapid unpredicted changes in the stratification of marine lake Mogilnoe (Kildin Island, the Barents Sea) through the early 21st century

et al. 2019

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Lake Mogilnoe is a rare example of an anchialine lake (with subterranean connection to the ocean) in the Arctic, a refuge for landlocked populations of marine organisms. The lake has been the subject of intensive studies since the end of the 19th century. Here we demonstrate that between the 2003-07 and 2015-18 observation periods this permanently stratified lake experienced significant changes. The surface salinity increased and exceeded the tolerance limits of many freshwater organisms. The bottom anoxia expanded from onefifth to one-third of the lake volume. Such a turn in stratification affected both composition and distribution of biota: freshwater zooplanktonic species virtually disappeared, while benthic communities shifted to shallower depths. Although recent changes in the lake stratification are consistent with the longterm trend, their scale is much larger than has been observed during the past 120 years. It was earlier considered that the lake dynamics were mainly affected by human activity in the vicinity of the lake. However, lack of human activity around Mogilnoe during last decades persuades us to search for the natural causes of the recorded changes.

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Section: Resultsmentioning

confidence: 99%

“…The latter is most probably true. The single creek flowing into the lake (water discharge in summer 2012: 10.8 m³ h -1 [Stroganov et al 2015]) has been completely dry during our expeditions since 2016 ( Supplementary Fig. S6).…”

Section: Resultsmentioning

confidence: 99%

Rapid unpredicted changes in the stratification of marine lake Mogilnoe (Kildin Island, the Barents Sea) through the early 21st century

et al. 2019

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The lake cod Gadus morhua kildinensis in the context of conservation biology

Popov

2024

Water Biology and Security

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New Data on the Biology of Kildin Cod Gadus morhua kildinensis (Gadidae) from Lake Mogilnoe (Kildin Island, the Barents Sea) Obtained by Echo Sounding and Underwater Photography

Stroganov

Strelkov

Shilin³

et al. 2022

J. Ichthyol.

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The distribution of the Kildin cod Gadus morhua kildinensis in Lake Mogilnoye (Kildin Island, Barents Sea) is assessed based on the results of echo sounding and hydrological surveys, underwater photography and field observations. Underyearlings live in the lower part of the freshened upper layer, younger age groups locate in vicinity of the natural dam in the southeastern part of the lake, adults are distributed along the water area of the lake within the depth range of 4.0–6.4 m (mainly 5.0–5.4 m), characterized by favorable temperature values, water salinity, and oxygen saturation.

show abstract

The biological features of the Kildin cod, Gadus morhua kildinensis Derjugin, 1920 (Gadidae)

Cited by 8 publications

References 12 publications

Rapid unpredicted changes in the stratification of marine lake Mogilnoe (Kildin Island, the Barents Sea) through the early 21st century

Rapid unpredicted changes in the stratification of marine lake Mogilnoe (Kildin Island, the Barents Sea) through the early 21st century

The lake cod Gadus morhua kildinensis in the context of conservation biology

New Data on the Biology of Kildin Cod Gadus morhua kildinensis (Gadidae) from Lake Mogilnoe (Kildin Island, the Barents Sea) Obtained by Echo Sounding and Underwater Photography

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