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Nemamyxine elongata Richardson, 1958

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drawing shows typical species in Myxinidae.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Myxini 盲鰻綱 (醜魚) (hagfishes) > Myxiniformes (Hagfishes) 盲鰻目 (Hagfishes) > Myxinidae (Hagfishes) 盲鰻科 (Hagfishes) > Myxininae
Etymology: Nemamyxine: nema (Gr.), thread, i.e., a thin, elongate Myxine (See ETYFish); elongata: Latin for prolonged, referring to its extremely slender form (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋 居於水底的; 非遷移的. 溫帶

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Southwest Pacific: New Zealand. Known only from type specimen.
西南太平洋: 紐西蘭。 已知只有模式標本。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 61.4 cm TL 雄魚/尚未辨別雌雄; (Ref. 31276)

生物學特性     字彙 (例如 epibenthic)

Extremely elongated, black-pigmented species.

非常地延長, 黑色的種。

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

Copulatory organ absent. The gonads of hagfishes are situated in the peritoneal cavity. The ovary is found in the anterior portion of the gonad, and the testis is found in the posterior part. The animal becomes female if the cranial part of the gonad develops or male if the caudal part undergoes differentiation. If none develops, then the animal becomes sterile. If both anterior and posterior parts develop, then the animal becomes a functional hermaphrodite. However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies (Ref. 51361 ).西南太平洋: 紐西蘭。 已知只有模式標本。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Fernholm, B., 1998. Hagfish systematics. p. 33-44. In J.M. Jørgensen, J.P. Lomholt, R.E. Weber and H. Malte (eds.) The biology of hagfishes. Chapman & Hall, London. 578 p. (Ref. 31276)

IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)

  資料不足 (DD) ; Date assessed: 11 November 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00115 (0.00044 - 0.00298), b=3.03 (2.80 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.4   ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (45 of 100).