分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Scombriformes (Mackerels)
鱸形目 (Mackerels) >
Gempylidae (Snake mackerels)
蛇鯖科 (Snake mackerels)
Etymology: Rexea: Latin, rex, rego = king.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 底中水層性; 深度上下限 180 - 400 m (Ref. 6181). 深水域; 20°S - 27°S, 90°W - 81°W (Ref. 6181)
Southeast Pacific: known only from seamounts of Nazca Submarine Ridge and adjacent parts of Sala y Gomez Ridge.
東南太平洋: 已知只來自 Sala y Gomez 脊的納斯卡海底脊的海洋山脊與毗連部份了。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 43.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 6181); 最大年齡: 15 年 (Ref. 6204)
背棘 (總數) : 18; 背的軟條 (總數) : 15 - 18; 臀棘: 2; 臀鰭軟條: 12 - 14; 脊椎骨: 34. Lateral line branching below the 5th to 7th spine of the first dorsal fin, usually ending below the third to the last spine of the first dorsal fin. The lower branch runs mid laterally, sometimes undulating on caudal peduncle. Body is entirely scaled at a length of over 20 cm SL. Pyloric caeca 7 or 8. Body color is brown with silvery tint; anterior 2 membranes of the first dorsal fin black, the rest of the fin black edged; the posterior part of the pectoral fin is black.
側線在第一背鰭的這第 5 到第 7根棘下分枝, 通常在第一背鰭的第三個到最後的硬棘下面終止。 下面的分支側面中央地跑, 有時波動在尾梗上。 身體完全地被鱗片在體長超過 20 公分 SL。 幽門盲囊 7 或 8. 體色是褐色的有銀色的色彩; 第一背鰭黑色的前面 2個薄膜, 其它的鰭黑邊; 胸鰭的後面的部份是黑色的。
Feeds on squid and fish. Matures at about 25 cm.
吃烏賊與魚。 在大約 25 公分時成熟。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
東南太平洋: 已知只來自 Sala y Gomez 脊的納斯卡海底脊的海洋山脊與毗連部份了。
Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
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Estimates based on models
Preferred temperature (Ref.
123201): 10.6 - 11.1, mean 10.8 °C (based on 10 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00167 - 0.00826), b=3.10 (2.91 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.5 ±0.62 se; based on food items.
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (tmax=15).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).
