The riverine dwelling groups of endemic Dolly Varden (Salvelinus malma, Salmonidae) morphs from lake Kronotskoe (Kamchatka, Russia)

Маркевич, Г. Н.; Есин, Е. В.

doi:10.24189/ncr.2018.041

Cited by 3 publications

(1 citation statement)

References 5 publications

(6 reference statements)

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“…Russia has several categories of protected areas with reserves and national parks subject to the strictest regulation. They are designed to preserve biodiversity in certain areas of land and sea (Grebennikov 2016;Markevich, Esin 2018;Bakirova, Zharkikh 2019;Kirilyuk et al 2019;Uligova et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Notes on the fauna of beetles (Insecta, Coleoptera) adjacent to the territory of the Mordovia State Nature Reserve

Ruchin¹,

Egorov²,

Алексеев³

et al. 2021

АЗЖ

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Опубликовано Российским государственным педагогическим университетом им. А. И. Герцена. Открытый доступ на условиях лицензии CC BY-NC 4.0. Аннотация. Приводятся результаты изучения сборов 2012-2019 гг. (частично -предыдущих лет) на территориях, прилегающих к Мордовскому заповеднику (Республика Мордовия, Россия). География сборов включает 6 районов Нижегородской области (Выксунский, Вознесенский, Первомайский районы и г. Саров с окрестностями) и Республики Мордовия (Темниковский, Ельниковский, Теньгушевский районы). Сборы осуществлялись вручную, а также с помощью почвенных и кроновых ферментных ловушек. В общей сложности обнаружено 260 видов из 29 семейств жесткокрылых.

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Section: Introductionmentioning

confidence: 99%

Notes on the fauna of beetles (Insecta, Coleoptera) adjacent to the territory of the Mordovia State Nature Reserve

Ruchin¹,

Egorov²,

Алексеев³

et al. 2021

АЗЖ

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Patterns of Ecological Specialisation Among Multiple Piscivorous Morphs of a Diverse Assemblage of Salvelinus Fishes

Esin,

Shkil,

Shulgina

et al. 2024

Ecology of Freshwater Fish

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Adaptive radiation is considered to be a major source of biodiversity in charrs of the genus Salvelinus. These fishes demonstrate numerous examples of diversification in postglacial lakes and rivers resulting in the emergence of different ecomorphs, including piscivorous. Usually, the number of fish feeders does not exceed two, suggesting the existence of ecological and/or internal factors that prevent further diversification. Under these circumstances, rare instances of increases in the number of piscivorous morphs are of particular interest. Here, we present a comprehensive study of the piscivorous charr assemblage in Lake Kronotskoe, residence of the most diverse species flock of Salvelinus fishes. To unravel the diversity and ecological relationships of piscivorous charrs, we analysed their morphology and microsatellite DNA polymorphism, distribution within the lake, trophic preferences and parasite load, as well as trace element accumulation, stable isotope and free fatty acid ratios. We revealed that, apart from a few strictly benthivorous morphs, the lake is inhabited by four closely related but morphologically and genetically distinct morphs that exhibit a range of piscivorous specialisation: from opportunistic secondary predation to ultra‐specialised primary piscivory. They effectively exploit the spatiotemporal structure of the ecosystem and experience diversifying selection due to niche discordance. Each piscivorous morph develops specific phenotypic, ecological and life history traits that allow it to terminate weakly overlapping branches of the trophic chain and share the energy flows of the lake ecosystem. Our data suggest that Lake Kronotskoe facilitates high level of ecological opportunity that favours niche expansion and allows the piscivorous lineage to simultaneously realise the archetypical modes of ecological diversification available to fishes in cold‐water freshwaters.

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The Ratio of Leukocytes in Peripheral Blood and Immunocompetent Organs of Chars of the Genus Salvelinus (Salmonidae) in the Lake Kronotskoe Basin

Gordeyev,

Mikryakov,

Balabanova

et al. 2023

Voprosy ihtiologii

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The cellular composition of leukocytes in the peripheral blood, head kidney and spleen was studied in individuals of three species of chars of the genus Salvelinus, white char S. albus, long–headed char S. kronocius and long-nosed char S. schmidti, as well as two forms, small-mouth and large-mouth chars living in Lake Kronotskoe. In the studied individuals, the proportion of lymphocytes of leukocytes in the peripheral blood was significant. The forms (species) of chars differed in the proportion of cell types, the size of leukocytes, as well as the intensity of leukopoiesis. The most significant differences in the proportion of different forms of leukocytes were found in the large-mouth char compared to other species and small–mouth char: high content of lymphocytes in blood smears, low content of monocytes in all tissues and organs, blast forms in the blood and neutrophils in the pronephros.

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The riverine dwelling groups of endemic Dolly Varden (Salvelinus malma, Salmonidae) morphs from lake Kronotskoe (Kamchatka, Russia)

Cited by 3 publications

References 5 publications

Notes on the fauna of beetles (Insecta, Coleoptera) adjacent to the territory of the Mordovia State Nature Reserve

Notes on the fauna of beetles (Insecta, Coleoptera) adjacent to the territory of the Mordovia State Nature Reserve

Patterns of Ecological Specialisation Among Multiple Piscivorous Morphs of a Diverse Assemblage of Salvelinus Fishes

The Ratio of Leukocytes in Peripheral Blood and Immunocompetent Organs of Chars of the Genus Salvelinus (Salmonidae) in the Lake Kronotskoe Basin

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