Malacostraca |
Isopoda |
Cirolanidae
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
Bathydemersal; tiefenbereich 310 - 2300 m (Ref. 3113), usually 365 - 730 m (Ref. 80749). Deep-water
Indo-West Pacific and Western Atlantic.
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm 18.0 range ? - ? cm Max length : 50.0 cm TL Männchen/unbestimmt; (Ref. 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]. (Ref. 3113)
IUCN Rote Liste Status
(Ref. 130435: Version 2025-2 (Global))
CITES Status (Ref. 108899)
Not Evaluated
Not Evaluated
Bedrohung für Menschen
Nutzung durch Menschen
Fischereien: nicht kommerziell
FAO - Publication: search | FishSource |
Tools
Mehr Information
PhysiologieSauerstoffverbrauch
MenschenbezogenBriefmarken, Münzen, Verschiedenes.
Internet Quellen
Schätzungen auf der Grundlage von Modellen
Widerstandsfähigkeit
(Ref. 69278): |
hoch, Verdopplung der Population dauert weniger als 15 Monate. (K=0.74) |
Anfälligkeit der Fischerei
(Ref. 71543) |
Low to moderate vulnerability (27 of 100). |
Preiskategorie
(Ref. 80766): |
Unknown. |
