A new species of the genus Cottus (Scorpaeniformes, Cottidae) from the Baltic Sea Basin and its phylogenetic placement

Zhidkov, Zakhar; Kesminas, Vytautas

doi:10.5852/ejt.2022.834.1897

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…This marker was successfully utilized for phylogenetic inferences of various groups of freshwater Cottoidei: Baikal sculpins, among which interspecific genetic distances can be equal to 0.2-0.3% [11]; species group "Cottus poecilopus" [29]; Russian Far East and Japanese sculpins [30][31][32]; European cottoid fishes [33]. The mtDNA CR was also used to determine the phylogenetic position of the new species Cottus cyclophtalmus [34].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Differences between the Baltic Triglopsis quadricornis and White Sea Triglopsis sp. Using Morphological and Genetic Data

Сиделева

Zhidkov

2022

Diversity

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According to the modern fish system, one species of fourhorn sculpin Triglopsis quadricornis lives in the Baltic Sea and Arctic waters. In the present study, sculpins from the Baltic and White Seas were studied using different methods: morphological analysis to establish patterns of the seismosensory system, tomography for the study of cranial bones, X-ray imaging for the study of the axial skeleton, as well as phylogenetic analysis of two mtDNA markers (control region and CO1) and one nDNA marker (RAG1). The results obtained by these methods were used to prove the existence of two species: T. quadricornis in the Baltic Sea and Triglopsis sp. in the White Sea. These species differ significantly in the unique shape and size of the bony outgrowths on the head, as well as in the number of bony plates on the body. Genetic differences between the species were expressed in the formation of T. quadricornis and Triglopsis sp. independent clusters on Bayesian phylogenetic trees reconstructed based on the sequences of the mtDNA control region and RAG1.

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Section: Discussionmentioning

confidence: 99%

Evaluation of Differences between the Baltic Triglopsis quadricornis and White Sea Triglopsis sp. Using Morphological and Genetic Data

Сиделева

Zhidkov

2022

Diversity

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Morphology of skin armament of the diadromous and freshwater sculpins (Actinopterygii, Scorpaeniformes, Cottidae) of Eurasia

Saveliev

2024

Zoologischer Anzeiger

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Description of a new species of Cottus Linnaeus (Cottidae) from the Western Dvina / Daugava River system, Baltic Sea basin, based on integrative taxonomy

SIDELEVA,

ZHIDKOV

2024

Zootaxa

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In the genus Cottus (family Cottidae), 72 species are known. Of these, 37 species are found in North America, 17 in Asia, and 18 in Europe. Over the past 18 years, nine new species have been described from Western and Central Europe, two from Eastern part of this continent. Also, the validity of two Eastern European species was confirmed. In the Western Dvina / Daugava River system (Baltic Sea basin), Cottus dorofeevi sp. nov. was found. To describe this species, an integrative approach was used that combines morphological and molecular methods. The new species differs from other species of the genus Cottus by a combination of morphological characters. Taxonomically the most conspicuous features are: flattened shape of head; long pelvic fins (reaching anus); incomplete trunk canal of lateral line with 25-27 pores; presence of melanophores on ventral side of body and fins. Genetically, C. dorofeevi sp. nov. is sister to C. koshewnikowi. Haplotypes (CR) of C. dorofeevi sp. nov. are differentiated from haplotypes of other European species of the genus Cottus by genetic distances between 1.3% and 3%.

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A new species of the genus Cottus (Scorpaeniformes, Cottidae) from the Baltic Sea Basin and its phylogenetic placement

Cited by 3 publications

References 19 publications

Evaluation of Differences between the Baltic Triglopsis quadricornis and White Sea Triglopsis sp. Using Morphological and Genetic Data

Evaluation of Differences between the Baltic Triglopsis quadricornis and White Sea Triglopsis sp. Using Morphological and Genetic Data

Morphology of skin armament of the diadromous and freshwater sculpins (Actinopterygii, Scorpaeniformes, Cottidae) of Eurasia

Description of a new species of Cottus Linnaeus (Cottidae) from the Western Dvina / Daugava River system, Baltic Sea basin, based on integrative taxonomy

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