Malacostraca |
Isopoda |
Cirolanidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
Tầng đáy biển sâu; Mức độ sâu 310 - 2300 m (Tài liệu tham khảo 3113), usually 365 - 730 m (Tài liệu tham khảo 80749). Deep-water
Indo-West Pacific and Western Atlantic.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm 18.0  range ? - ? cm Max length : 50.0 cm TL con đực/không giới tính; (Tài liệu tham khảo 99323)
Body depressed without distinct carapace. First thoracic segment fused with head. Sessible eyes; uniramous antennules with reduced exopodites.. First pair of thoracic appendages specialized as maxilliped; other thoracic appendages without exopodites. Shortened abdomen with segments often fused into caudal shield. Pleopods biramous, with flat rami serving as gills. Uropods and telson form fan-like fin, legs natatory.
Largest known isopod. Inhabits the upper and mid slopes of the continental shelf. Bycatch of baited traps (Ref. 80748). This species has mouthparts which are highly adapted to cut and ingest large pieces of food, a large and distensible gut for maximum food ingestion as well as the capacity to store large amounts of lipids in the hepatopancreas (Ref. 80748). Maximum depth range from Ref. 111151. Believed to be a scavenger because of its high incidence in bycatch of trap fisheries (e.g., golden crab, Chaceon fenneri, trap fishery in Northern Gulf of Mexico; see Ref. 80748) (Ref. 3113).
Oviposition in females preceded by parturial molt; functional form of oostegites obtained; females can grow between 1-3 cm BL in first parturial molt; 1 or more pre-parturial molts between the onset of ovarian maturity and first parturial molt.
Schotte, M., B.F. Kensley and S. Shilling 1995 World list of marine, freshwater and terrestrial crustacea isopoda. National Museum of Natural History Smithsonian Institution: Washington D.C., USA. Http://www.nmnh.si.edu/iz/isopod/ [Accessed 07/03/01]. (Tài liệu tham khảo 3113)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2025-1)
CITES status (Tài liệu tham khảo 108899)
Not Evaluated
CMS (Tài liệu tham khảo 116361)
Not Evaluated
Threat to humans
Human uses
Các nghề cá: không ích lợi (thú vị)
| FishSource |
Các công cụ
Thêm thông tin
PhysiologyThành phần ô-xy
Human RelatedStamps, coins, misc.
Các nguồn internet
Estimates based on models
Preferred temperature
(Ref.
115969): 6.4 - 14.4, mean 9.9 (based on 250 cells).
Thích nghi nhanh
Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (K=0.74).
Fishing Vulnerability
Low to moderate vulnerability (27 of 100).
Price category
Unknown.