Common names from other countries
Classification / Names / Names
俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS
Environment: milieu / climate zone / depth range / distribution range
生态学
底中水层性; 深度上下限 0 - 25 m (Ref. 97531), usually 0 - 5 m.
分布
国家 | FAO区域 | 生态系 | 标本纪录 | 简介
Western Atlantic: USA to Brazil.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm Max length : 14.2 cm WD 雄鱼/尚未辨别雌雄; (Ref. 367); 9.5 cm WD (female)
Carapace slightly more than twice as broad as long; 9 teeth on arched anterolateral margin (outer orbital tooth and strong lateral spine included), second to eighth usually trending forward, without shoulders, anterior margins concave except first 2; front (excluding outer orbital angles) bearing 4 teeth, inner pair small but definitely formed. Anterior half of convex dorsal surface coarsely granulate, variably finer and more numerous granules on posterior on posterior part and in transverse lines; central trapezoidal (metagastric) area short and wide (anterior width about 2.4 times, posterior width about 1.5 times length). Pincers dissimilar, ridged longitudinally, fingers compressed but broadened dorsoventrally producing pointed spatulate shape; fifth legs flattened in form fifth legs flattened in form of paddles. Male with T-shaped abdomen reaching slightly beyond suture between thoracic sternites 4 and 5, sixth segment nearly parallel-sided but broadened proximally; first pleopods short, reaching about midlength of sternite 7, approximately each other or occasionally overlapping at level of abrupt curve beyond which short terminal part tapers to rather sharp tip; armed with minute scattered retrogressive spinules distally. Color: carapace brown with areas of bluish black. Chelae brown above; fingers dark on external face except for tips and proximal portion, internal face dark in distal 2/3; dark color of fingers retained in preservation.
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.
主要参考文献
参考文献 | 合作者 | 合作者
Tavares, M. 2003. (Ref. 367)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
Not Evaluated
Not Evaluated
人类利用
渔业: 低经济
| FishSource |
工具
网络资源
Estimates based on models
Preferred temperature
(Ref.
115969): 26.3 - 28.2, mean 27.4 (based on 546 cells).
脆弱性
Low vulnerability (10 of 100).
