分類 / Names
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Perciformes/Notothenioidei (Icefishes) >
Bathydraconidae (Antarctic dragonfishes) > Bathydraconinae
Etymology: Akarotaxis: Name from Greek words 'Akaros' meaning short or small and 'taxis' meaning row or line, referring to the short upper lateral line; gouldae: Named after the U.S. Antarctic Research and Supply Vessel (ARSV) Laurence M. Gould (LMG); Noun; feminine, following maritime tradition of referring to ships as female.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 深海魚; 深さの範囲 215 - 964 m (Ref. 131869). Deep-water
Western Antarctic Peninsula.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 14.1 cm SL オス/雌雄の選別がない; (Ref. 131869); 13.6 cm SL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 28 - 31; 臀鰭: 25 - 28; 脊つい: 47 - 48. This species is distinguished from A. nudiceps by the presence of two dark vertical bands
of pigment on the body; a larger body depth at the origin of the anal fins; and a shorter snout and jaw length.The smallest adult specimen examined was 12.73 mm SL, although the sex was not determined. It is unknown when the characteristic dark vertical bands develop in this species, although it has been reported that these do not appear on larvae up to 2.07 cm SL (Ref. 131869).
Adults were captured at 600-705 m while larvae were captured at 215-964 m; habitats at these depths in coastal regions of Antarctica are likely composed of similar fine sediments (Ref. 131869).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Corso, A.D., T. Desvignes, J.R. McDowell, C.-H.C. Cheng, E.E. Biesack, D.K. Steinberg and E.J. Hilton, 2024. Akarotaxis gouldae, a new species of Antarctic dragonfish (Notothenioidei: Bathydraconidae) from the western Antarctic Peninsula. Zootaxa 5501(2):265-290. (Ref. 131869)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref.
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
