Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; গভীরতার পরিসীমা 0 - 200 m (Ref. 4), usually 10 - 40 m (Ref. 4). Temperate, preferred 15°C (Ref. 107945); 25°S - 47°S, 13°W - 99°E (Ref. 107486)
Southeast Atlantic, Western and Antarctic Indian Ocean.
Length at first maturity / আকৃতি / ওজন / Age
Maturity: Lm 6.3, range 6 - 7.5 cm Max length : 37.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 4); 27 cm TL (female); common length : 28.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 4); common length :21 cm TL (female)
The total body length of largest specimen ever recorded is 37 cm; and the total body length is 14 to 35.5 cm (male) and 9 to 27 cm (female); and carapace lengths of 6 to 14.5 cm (male) and 4 to 10 cm (female); with an average size of 21 to 28 cm (male) and 19 to 21 cm (female). The specimens from Amsterdam are slightly smaller than those from St Paul Island (Ref. 4). Occurs at depths of 0 to 200 m on rocky or gravel bottom, being most numerous in the kelp zone between 10 and 40 m (Ref. 4). Found clinging to overhangs in deep shade underneath huge rocks; also in caves (Ref. 106858). Confined to oceanic islands and seamounts (Ref. 105202). It is nocturnal and feeds on plants and dead animal matter (Ref. 4). Partially vegetarian (Ref. 105260). Reported to exhibit cannibalism among its deep-water populations (Ref. 105202).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
May exhibit gynandromorphy (Ref. 10623). Egg-laying starts in May, and ovigerous females have been observed until November, or exceptionally early December. Females are caught from May to October, while males dominate in most catches from November to April (Ref. 4).
Holthuis, L.B. 1991. (Ref. 4)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Human uses
মৎস্য: বাণিজ্যিক
FAO - মৎস্য: landings | FishSource | আমাদের চতুর্পাশ্বের সাগর
হাতিয়ার
ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature
(Ref.
115969): 5.5 - 15.3, mean 10.2 (based on 4 cells).
স্থিতিস্থাপক
নিম্ন/ , সর্বনিম্ন প্রজন দ্বিগুনের সময় ৪.৪-১৪ বৎসর (K=0.06-0.11).
Vulnerability
Low to moderate vulnerability (27 of 100).