Gastropoda |
Trochida |
Trochidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Mức độ sâu 0 - 7 m (Tài liệu tham khảo 83435). Tropical; 26°N - 6°N, 89°W - 57°W
Western Central Atlantic.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ?, range 1 - 3.4 cm Max length : 18.0 cm SHW con đực/không giới tính; (Tài liệu tham khảo 105349); common length : 10.0 cm TL con đực/không giới tính; (Tài liệu tham khảo 355)
Shell large, heavy, conical, with rounded shoulders. Umbilicus deep and round, operculum multispiral, circular. Colour: purple-black on a whitish background; aperture white, internally nacreous; operculum iridescent brown.
Stocks have been locally extirpated or are diminishing due to over exploitation (Ref. 355). Shallow subtidal, on rocks and shell rubble (Ref. 355). They are also found in intertidal and offshore coral reefs, particularly on algae, boulder, and coral habitats (Ref. 83934). Herbivore-detritivore. Most feeding seems to occur at night and early morning. Feeds on a wide variety of algae, sand and detritus (Ref. 105349).
Broadcast spawners. Spawning occurs during lunar period. Females lay eggs in ribbons or jelly masses in the substratum, after the males have released their sperm (Ref. 105346). Males don't have penis (Ref. 105349). Life cycle: Embryos develop into planktonic trocophore larvae and later into juvenile veligers before becoming fully grown adults (Ref. 833).
Leal, J.H. 2003. (Tài liệu tham khảo 355)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2024-2)
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: Tính thương mại
| FishSource | Biển chung quanh ta
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): 26.8 - 28.2, mean 27.7 (based on 344 cells).
Thích nghi nhanh
Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (K=0.19-0.2).
Fishing Vulnerability
Low to moderate vulnerability (31 of 100).
Price category
Unknown.
Nutrients : Calcium = 126 [75, 177] mg/100g; Iron = 4.79 [1.67, 7.92] mg/100g; Protein = 15.9 [14.8, 16.9] %; Omega3 = 0.331 [0.263, 0.400] g/100g; Selenium = 57.8 [48.5, 67.2] μg/100g; VitaminA = 0 μg/100g; Zinc = 1.97 [0.92, 3.02] mg/100g (wet weight); based on
nutrient studies.