Malacostraca |
Decapoda |
Geryonidae
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
Benthic; 深度上下限 200 - 2002 m (参考文献 101759). Deep-water; 7°C - 16°C; 38°N - 23°N, 88°W - 64°W
Western Atlantic: South Atlantic Bight, the Gulf of Mexico and Bermuda.
首次成熟时的长度 / 大小 / 重量 / 年龄
成熟度: Lm ?, range 9 - 16.9 cm Max length : 19.0 cm CW 雄鱼/尚未辨别雌雄; (参考文献 101836); 最大体重: 2.0 kg (参考文献 101836)
Carapace broader than long. Median pair of frontal teeth separated by a wide sinus, teeth scarcely overreaching obtuse lateral frontal teeth. Orbits usually more than 3/4 frontal width. Anterolateral teeth 5, second and fourth reduced, distance between first and third usually smaller than distance between third and fifth. Cheliped with blunt lobe on upper margin of merus, carpus lacking outer spine, propodus lacking distal dorsal spine. Meri of pereiopods lacking distal dorsal spine. Fifth leg: merus broad, less than 2/3 carapace width; propodus broad, length less than 4.5 times width; propodus and dactylus subequal in length, or dactylus slightly longer. Dactili of pereiopods compressed, narrow, height at midlength much greater than width. Color: tan to cream.
Maximum depth from Ref. 97531 Inhabits the continental slope on flat foraminiferan ooze habitat, coral mounds, ripple habitat, dunes, black pebble habitat, rock outcrops, and soft-bioturbated habitat (Ref. 367). Also in muddy and muddy-sandy bottoms (Ref. 101384). Opportunistic feeder (Ref. 104380).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Life cycle: Eggs are incubated for approximately six months after which the larvae hatch. Mating behavior: Mating occurs immediately after the female's molting. Precopulatory behavior is characterized as the formation of a protective cage around the female by the male using its legs.
主要参考文献
参考文献 | 合作者 | 合作者
Tavares, M. 2003 True Crabs. pp. 327-352. In Carpenter, K.E. (ed.) The living marine resources of the Western Central Atlantic. Volume1: introdution, molluscs, crustaceans, hagfishes, sharks, batoid fishes, and chimaeras. FAO Species Identification Guide for Fishery Purposes and American Society of Ichthyologists and Herpetologists Special PublicationNo. 5. Rome, FAO. pp. 1-600. (参考文献 367)
世界自然保护联盟红皮书
(参考文献 130435: Version 2025-2 (Global))
Not Evaluated
Not Evaluated
对人类的威胁
人类利用
渔业: 商业性
FAO - Publication: search | FishSource |
工具
网络资源
基于模型的估算
渔业脆弱性
(参考文献 71543) |
Low vulnerability (10 of 100). |
价格分类
(参考文献 80766): |
Unknown. |
