Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa de distribuição
Ecologia
marinhas demersal; intervalo de profundidade 110 - 282 m (Ref. 123372). Deep-water
Northwest Pacific: Sea of Okhotsk.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 9.9 cm TL macho/indeterminado; (Ref. 123372)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 8; Raios dorsais (total) : 12 - 13; Raios anais : 11 - 12; Vértebras: 28 - 31. This species is distinguished by the following characters: first dorsal fin, immersed in thick skin, is triangular (acute-angled in the posterior part), it retains its mobility (it can be pressed against the body); bony plaques on the head (individuals 4.0-8.5 cm SL) are small, arranged at intervals, form no more than five longitudinal rows in the interorbital region, while are more often single-row on the cheeks; anus area with only four large plaques; number of plaques on the body and head (circumpectoral, postbranchial, postorbital, median, supraorbital, and interorbital rows) 21-33 (average 26.7); distance from anus to the beginning of anal fin is 15-19% SL on average; pectoral fin long, on average, 53-66% HL. Colouration: when alive, head and upper side of body pigmented, with the dark, indistinct, somewhat elongated spots are located mainly near the bone plaques; belly and disk are light; chin dark; some specimens have scattered small spots on
the belly, front of the anus in the form of dashes and in the form of very small dots behind it; caudal peduncle with a dark stripe; D2 rays with dark elongated small spots; caudal rays with vague spots; peritoneum light (Ref. 123372).
Body shape (shape guide): short and / or deep; Cross section: circular.
This species is more common on silty or sandy-stony bottom sediments at low temperatures (-1.2 to -1.3°C), which makes it possible to attribute it to the group of glacial-Okhotsk-Sea species. It does not occur in shallow waters with depths of less than 110 m, a habitat with a supercooled water mass with negative temperatures. Summer spawning is assumed with a 7.9 cm TL female with mature eggs (4-5 mm, 148 eggs) caught in July (adult females caught in May have immature eggs) (Ref. 123372).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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 Eumicrotremus ochotonensis (Cyclopteridae, Cottoidei) with redescription of E. derjugini. J. Ichthyol. 59(3):289-306. (Ref. 123372)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: sem interesse
Ferramentas
Relatórios especiais
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Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00764 - 0.05716), b=3.03 (2.80 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
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