FB-4183 http://www.fishbase.org/summary/SpeciesSummary.php?id=4183 Animalia Chordata Teleostei Perciformes/Cottoidei Cyclopteridae Eumicrotremus Eumicrotremus derjugini Popov, 1926 Svartkjeks Læderfinnet stenbider Leatherfin lumpsucker Petite poule de mer arctique Kruglopyor Deryugina круглопер Дерюгина 窦氏刺狮子鱼 竇氏刺獅子魚 Eumicrotremus derjugini variabilis Jensen, 1944 Eumicrotremus derjungini Popov, 1926 Eumicrotremus spinosus variabilis Jensen, 1944 1991-05-01 2019-03-11 Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott0 A list of common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (12)1-174. (Ref. 276) Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott0 Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814) Stein, D.L.0 Cyclopteridae. p. 1269-1274. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. 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(Ref. 132372) FB-GeneralDescr-4183 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-01 00:00:00 2025-07-10 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=4183 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution Found on mud, gravel or stone bottoms at temperatures below 0° C, with the young occuring in shallower water (Ref. 4701). A benthic species feeding on crustaceans and oikopleura (Ref. 58426). This species usually occurs at depths from 5 to 575 m at high water salinity (34-35 psu), with water temperatures below zero (down to -2.0°С). Recorded in Baffin Bay, down to 1038 m, and the Canadian Arctic at water temperature up to +4.93°C; Barents–Laptev Sea region, usually at the depths from 6 to 280 m, at low (from -1.9° to +1.8°C) mostly negative water temperatures and high salinity (34.03-35.25 psu), often on silt or clay sediments. In the Olenek and Lena rivers' shoals, it is found in the waters with a reduced oxygen content (86-88%), on brown-black sediments, often with a pronounced odor of hydrogen sulfide. It has never been found in the pelagic trawls. The reproduction in the Barents–Laptev Sea region probably takes place in the autumn-winter period, since the females with mature eggs (4-5 mm) are caught in the autumn. In July, the female (6.3 cm TL) from the Barents Sea had immature eggs ( Chernova, N.V., O.S. Voskoboinikova, O.Yu. Kudryavtseva, S.Yu. Orlova, O.A. Maznikova and A.M. Orlov 2019 Taxonomic status of the Okhotsk lumpsucker <i>Eumicrotremus ochotonensis</i> (Cyclopteridae, Cottoidei) with redescription of <i>E. derjugini</i>. J. Ichthyol. 59(3):289-306. (Ref. 123372) FB-DiagnosticDescr-4183 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2025-07-10 00:00:00 2025-07-10 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=4183 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Uses This species is distinguished by the following characters: first dorsal fin in the form of dense leathery process, does not bend down to the back, trapezoidal in shape; fish 4.0-8.5 cm TL, usually have seven rows of bony plaques in interorbital region; plaques in periorbital and preopercular rows are numerous; bare space in anus area bounded by semicircle of (6) 7-10 bony plaques; number of plaques on body and head (circumpectoral, postbranchial, supraorbital and postorbital, middle and interorbital rows) on average 32.7; distance from anus to beginning of anal fin on average 22% SL; pectoral fin short, on average 50–51% HL. Colouration: when alive (in Laptev Sea), body almost black, with slightly purple tint; without pronounced spots and stripes; lower side of head is dark, rays of D2, A, and P are dark gray; translucent fin membranes D2 and A are not colored; skin under upper caudal row of plaques light; it is a continuous dark band below it; bases of A and C with light spots; belly silvery; peritoneum (inner surface of abdominal cavity) is not pigmented; lining of oral cavity light, dotted (Ref. 123372). Chernova, N.V., O.S. Voskoboinikova, O.Yu. Kudryavtseva, S.Yu. Orlova, O.A. Maznikova and A.M. Orlov 2019 Taxonomic status of the Okhotsk lumpsucker <i>Eumicrotremus ochotonensis</i> (Cyclopteridae, Cottoidei) with redescription of <i>E. derjugini</i>. J. Ichthyol. 59(3):289-306. (Ref. 123372) FB-Morphology-4183 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2025-07-10 00:00:00 2025-07-10 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=4183 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Migration Dorsal spines (total): 6 - 8; Dorsal soft rays (total): 10 - 13; Analsoft rays: 10 - 13 Chernova, N.V., O.S. Voskoboinikova, O.Yu. Kudryavtseva, S.Yu. Orlova, O.A. Maznikova and A.M. Orlov 2019 Taxonomic status of the Okhotsk lumpsucker <i>Eumicrotremus ochotonensis</i> (Cyclopteridae, Cottoidei) with redescription of <i>E. derjugini</i>. J. Ichthyol. 59(3):289-306. (Ref. 123372) FB-Distribution-4183 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-02 00:00:00 2025-07-10 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=4183 http://rs.tdwg.org/ontology/voc/SPMInfoItems#LifeCycle Arctic Ocean: Barents-Laptev Sea and the Beaufort Sea-Greenland.Barents Sea (except southwestern part while in the northern areas, it can be found up to Spitsbergen and Franz Josef Land); Kara Sea (reaches 80°32N); Laptev Sea (eastwards to 77°46N 131°52E; Beaufort Sea (waters of the Canadian ArcticArch., in the Hudson Bay and Baffin Bay off the shores of the Baffin Island); easternGreenland (northwards to the Danish Harbor). The southern boundary of the range inthe North-West Atlantic is 60°N. Chernova, N.V., O.S. Voskoboinikova, O.Yu. Kudryavtseva, S.Yu. Orlova, O.A. Maznikova and A.M. Orlov 2019 Taxonomic status of the Okhotsk lumpsucker <i>Eumicrotremus ochotonensis</i> (Cyclopteridae, Cottoidei) with redescription of <i>E. derjugini</i>. J. Ichthyol. 59(3):289-306. (Ref. 123372) FB-TrophicStrategy-4183 http://purl.org/dc/dcmitype/Text text/html Grace Tolentino Pablico 2007-07-10 00:00:00 2013-11-14 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public derjugini http://rs.tdwg.org/ontology/voc/SPMInfoItems#TrophicStrategy Found on mud, gravel or stone bottoms at temperatures below 0° C (Ref. 4701). Young occur in shallower water (Ref. 4701). Benthic; feeds on crustaceans and oikopleura (Ref. 58426). Coad, B.W. and J.D. Reist 2004 Annotated list of the arctic marine fishes of Canada. Can. MS Rep. Fish Aquat. Sci. 2674:iv:+112 p. (Ref. 58426) FB-Size-4183 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-01 00:00:00 2025-07-10 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=4183 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size 12.7 cm TL (male/unsexed; (Ref. 43939)) Mecklenburg, C.W., T.A. Mecklenburg and L.K. Thorsteinson 2002 Fishes of Alaska. American Fisheries Society, Bethesda, Maryland. xxxvii +1037 p. (Ref. 43939) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-4183 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-01 00:00:00 2025-07-10 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=4183 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Diseases demersal; marine; depth range 5 - 1038 m (Ref. 117245), usually 5 - 575 m (Ref. 123372) Coad, B.W. and J.D. Reist 2018 Marine fishes of Arctic Canada. Toronto (ON, Canada): University of Toronto Press. xiii+618 p. (Ref. 117245) Chernova, N.V., O.S. Voskoboinikova, O.Yu. Kudryavtseva, S.Yu. Orlova, O.A. Maznikova and A.M. Orlov 2019 Taxonomic status of the Okhotsk lumpsucker <i>Eumicrotremus ochotonensis</i> (Cyclopteridae, Cottoidei) with redescription of <i>E. derjugini</i>. J. Ichthyol. 59(3):289-306. (Ref. 123372)