Small and Abundant but Understudied Ribbed Sculpin Triglops pingelii (Cottidae, Teleostei) from the Kara Sea (Siberian Arctic): Distribution, Biology, and Comparison with Congeners
The features of the spatial and vertical distributions, and size–age and size–sex structures of the ribbed sculpin Triglops pingelii of the Kara Sea are presented. In September 2019, this species was recorded at depths from 18 to 235 m at a bottom temperature from −1.5 to +1.6 °C. The densest concen...
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MDPI AG
2022
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ftdoajarticles:oai:doaj.org/article:b31e63ecc92b444a8a1cdfd8af57d25f 2023-05-15T14:59:09+02:00 Small and Abundant but Understudied Ribbed Sculpin Triglops pingelii (Cottidae, Teleostei) from the Kara Sea (Siberian Arctic): Distribution, Biology, and Comparison with Congeners Alexey M. Tokranov Pavel O. Emelin Alexei M. Orlov 2022-10-01T00:00:00Z https://doi.org/10.3390/d14100853 https://doaj.org/article/b31e63ecc92b444a8a1cdfd8af57d25f EN eng MDPI AG https://www.mdpi.com/1424-2818/14/10/853 https://doaj.org/toc/1424-2818 doi:10.3390/d14100853 1424-2818 https://doaj.org/article/b31e63ecc92b444a8a1cdfd8af57d25f Diversity, Vol 14, Iss 853, p 853 (2022) spatial distribution vertical distribution bottom temperature sexual dimorphism fecundity size–age structure Biology (General) QH301-705.5 article 2022 ftdoajarticles https://doi.org/10.3390/d14100853 2022-12-30T23:07:53Z The features of the spatial and vertical distributions, and size–age and size–sex structures of the ribbed sculpin Triglops pingelii of the Kara Sea are presented. In September 2019, this species was recorded at depths from 18 to 235 m at a bottom temperature from −1.5 to +1.6 °C. The densest concentrations were recorded northeastward of the Yamal Peninsula, at the outlet of the Gulf of Ob at a depth of 18–21 m and a bottom temperature from −1.5 to −1.0 °C. Individuals with a length of 46–126 mm and a body weight of 0.35–15.60 g aged 1+ to 4+ years were recorded in trawl catches. However, fish with a length of 51–90 mm and a body weight < 6 g aged 1+–2+ years dominated. Among fish > 71 mm long, the proportion of females increased sharply, reaching 100% with a length of 120 mm. The individual fecundity of female ribbed sculpins in the Kara Sea with a length of 89–123 mm varied from 100 to 316 (on average 215 ± 15) eggs. It is shown that this species is a necto-bentho-ichthyophage whose main prey are benthic and bentho-pelagic crustaceans (mainly amphipods and mysids), as well as juveniles of various fish, the total proportion of which is >99% of the food weight. In this sculpin, age-related changes in the diet composition are well expressed, i.e., as the size increases, the relative importance of the former prey group decreases sharply, and that of the latter two groups, on the contrary, increases. A comparative analysis of data on the biology and distribution of the six most abundant or common Triglops spp. makes it possible to attribute the ribbed sculpin to medium-sized representatives of the genus, whose maximum length is similar to those of T. jordani from the North Pacific, as well as T. murrayi and T. nibelyni from the Arctic. The lifespan of the ribbed sculpin is within the same limits as reported for other Triglops spp. Its individual fecundity in the Arctic seas is comparable to that of other Triglops species living here, but is significantly lower than that of individuals of this species and ... Article in Journal/Newspaper Arctic Gulf of Ob Kara Sea Yamal Peninsula Directory of Open Access Journals: DOAJ Articles Arctic Kara Sea Pacific Yamal Peninsula ENVELOPE(69.873,69.873,70.816,70.816) Diversity 14 10 853 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
spatial distribution vertical distribution bottom temperature sexual dimorphism fecundity size–age structure Biology (General) QH301-705.5 |
spellingShingle |
spatial distribution vertical distribution bottom temperature sexual dimorphism fecundity size–age structure Biology (General) QH301-705.5 Alexey M. Tokranov Pavel O. Emelin Alexei M. Orlov Small and Abundant but Understudied Ribbed Sculpin Triglops pingelii (Cottidae, Teleostei) from the Kara Sea (Siberian Arctic): Distribution, Biology, and Comparison with Congeners |
topic_facet |
spatial distribution vertical distribution bottom temperature sexual dimorphism fecundity size–age structure Biology (General) QH301-705.5 |
description |
The features of the spatial and vertical distributions, and size–age and size–sex structures of the ribbed sculpin Triglops pingelii of the Kara Sea are presented. In September 2019, this species was recorded at depths from 18 to 235 m at a bottom temperature from −1.5 to +1.6 °C. The densest concentrations were recorded northeastward of the Yamal Peninsula, at the outlet of the Gulf of Ob at a depth of 18–21 m and a bottom temperature from −1.5 to −1.0 °C. Individuals with a length of 46–126 mm and a body weight of 0.35–15.60 g aged 1+ to 4+ years were recorded in trawl catches. However, fish with a length of 51–90 mm and a body weight < 6 g aged 1+–2+ years dominated. Among fish > 71 mm long, the proportion of females increased sharply, reaching 100% with a length of 120 mm. The individual fecundity of female ribbed sculpins in the Kara Sea with a length of 89–123 mm varied from 100 to 316 (on average 215 ± 15) eggs. It is shown that this species is a necto-bentho-ichthyophage whose main prey are benthic and bentho-pelagic crustaceans (mainly amphipods and mysids), as well as juveniles of various fish, the total proportion of which is >99% of the food weight. In this sculpin, age-related changes in the diet composition are well expressed, i.e., as the size increases, the relative importance of the former prey group decreases sharply, and that of the latter two groups, on the contrary, increases. A comparative analysis of data on the biology and distribution of the six most abundant or common Triglops spp. makes it possible to attribute the ribbed sculpin to medium-sized representatives of the genus, whose maximum length is similar to those of T. jordani from the North Pacific, as well as T. murrayi and T. nibelyni from the Arctic. The lifespan of the ribbed sculpin is within the same limits as reported for other Triglops spp. Its individual fecundity in the Arctic seas is comparable to that of other Triglops species living here, but is significantly lower than that of individuals of this species and ... |
format |
Article in Journal/Newspaper |
author |
Alexey M. Tokranov Pavel O. Emelin Alexei M. Orlov |
author_facet |
Alexey M. Tokranov Pavel O. Emelin Alexei M. Orlov |
author_sort |
Alexey M. Tokranov |
title |
Small and Abundant but Understudied Ribbed Sculpin Triglops pingelii (Cottidae, Teleostei) from the Kara Sea (Siberian Arctic): Distribution, Biology, and Comparison with Congeners |
title_short |
Small and Abundant but Understudied Ribbed Sculpin Triglops pingelii (Cottidae, Teleostei) from the Kara Sea (Siberian Arctic): Distribution, Biology, and Comparison with Congeners |
title_full |
Small and Abundant but Understudied Ribbed Sculpin Triglops pingelii (Cottidae, Teleostei) from the Kara Sea (Siberian Arctic): Distribution, Biology, and Comparison with Congeners |
title_fullStr |
Small and Abundant but Understudied Ribbed Sculpin Triglops pingelii (Cottidae, Teleostei) from the Kara Sea (Siberian Arctic): Distribution, Biology, and Comparison with Congeners |
title_full_unstemmed |
Small and Abundant but Understudied Ribbed Sculpin Triglops pingelii (Cottidae, Teleostei) from the Kara Sea (Siberian Arctic): Distribution, Biology, and Comparison with Congeners |
title_sort |
small and abundant but understudied ribbed sculpin triglops pingelii (cottidae, teleostei) from the kara sea (siberian arctic): distribution, biology, and comparison with congeners |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/d14100853 https://doaj.org/article/b31e63ecc92b444a8a1cdfd8af57d25f |
long_lat |
ENVELOPE(69.873,69.873,70.816,70.816) |
geographic |
Arctic Kara Sea Pacific Yamal Peninsula |
geographic_facet |
Arctic Kara Sea Pacific Yamal Peninsula |
genre |
Arctic Gulf of Ob Kara Sea Yamal Peninsula |
genre_facet |
Arctic Gulf of Ob Kara Sea Yamal Peninsula |
op_source |
Diversity, Vol 14, Iss 853, p 853 (2022) |
op_relation |
https://www.mdpi.com/1424-2818/14/10/853 https://doaj.org/toc/1424-2818 doi:10.3390/d14100853 1424-2818 https://doaj.org/article/b31e63ecc92b444a8a1cdfd8af57d25f |
op_doi |
https://doi.org/10.3390/d14100853 |
container_title |
Diversity |
container_volume |
14 |
container_issue |
10 |
container_start_page |
853 |
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1766331279813378048 |