Klassifizierung / Names
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Perciformes/Zoarcoidei (Eelpouts and pricklebacks) >
Stichaeidae (Pricklebacks) > Alectriinae
Etymology: Alectrias: Greek, alektros, -os, -on = single, married in illegal or unhappy marriage (Ref. 45335); markevichi: Named for Aleksandr Igorevich Markevich, worker of the Far Eastern Marine Biosphere Reserve, Far Eastern Branch, Russian Academy of Sciences (Vladivostok)..
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser; tiefenbereich 0 - 50 m (Ref. 91064), usually 30 - 50 m (Ref. 91064). Temperate
Northwest Pacific: Japan, Peter the Great Bay and Moneron Island (the Sea of Japan), South Kuril Strait.
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 6.6 cm SL Männchen/unbestimmt; (Ref. 91064)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenweichstrahlen (insgesamt) : 62 - 63; Afterflossenweichstrahlen: 43 - 44; Wirbelzahl: 66 - 68. This species is distinguished by the following characters: thin and elongated body, its depth 10.2-14.1 (12.9) times in SL; small head, 6.6-8.0 (7.2) times in SL; small pectoral and caudal fins, 2.5-4.0 (3.0) and 1.9-2.7 (2.2) times HL, respectively; occipital commissure with 3 pores almost at the straight line; no pores near crest base and no medial tubule; postorbital canal usually with 6 pores (usually pore po2 is absent); preopercular canal with 4 pores; skinny crest on head with a smooth upper profile - in females, it is highest in the middle, while in males, it is highest near the posterior margin; distance between the anterior margin of medial pore of OC and origin of D is large, 0..5-9 (0.7) times in horizontal orbit diameter; scales present behind 2nd-8th ray of anal fin; D 62-63. P 7-9. V. 66-68; 13-16 spines of dorsal fin are thin and bending, at its end, there is only one shortened spine; anal fin begins under the 19th-21st ray of dorsal fin, its last ray is connected by a membrane with caudal fin 75-90 (85.4)% of its length; caudal fin with 8-11 branched rays; no branched rays on epural3; preural vertebrae with wide neural processes 11-18, and those with hemapophyseal plate 9-12; vertebrae with hemapophyseal plate, neural processes are noticeably shorter than hemal ones; top of head covered with small brown spots (Ref. 91064).
Found on rocky littoral formed of slightly flattened stones, 30-60 cm, with narrow slits that are partially filled with sand, gravel ad small stones. Stomachs contain small gastropods (Ref. 91064).
Life cycle and mating behavior
Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven
Sheiko, B.A., 2012. Alectrias markevichi sp. nov. - A new species of cockscombs (Perciformes: Stichaeidae: Alectriinae) from the sublittoral of the sea of Japan and adjacent waters. J. Ichthyo. 52(5):308-320. (Ref. 91064)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
