Gastropoda |
Trochida |
Trochidae
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; गहराई सीमा 0 - 7 m (संदर्भ 83435). Tropical; 26°N - 6°N, 89°W - 57°W
Western Central Atlantic.
Length at first maturity / आकार / Weight / Age
परिपक्व अवधि: Lm ?, range 1 - 3.4 cm Max length : 18.0 cm SHW पुल्लिंग / अलिंग; (संदर्भ 105349); common length : 10.0 cm TL पुल्लिंग / अलिंग; (संदर्भ 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. (संदर्भ 355)
IUCN Red List Status
(संदर्भ 130435: Version 2024-2)
CITES status (संदर्भ 108899)
Not Evaluated
CMS (संदर्भ 116361)
Not Evaluated
Threat to humans
Human uses
मात्स्यिकी: व्यापारिक
| FishSource | Sea Around Us
साधन
अधिक जानकारी
Human RelatedAquaculture profiles
Stamps, coins, misc.
इंटरनेट स्रोत
Estimates based on models
Preferred temperature
(Ref.
115969): 26.8 - 28.2, mean 27.7 (based on 344 cells).
लौटाव
माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (K=0.19-0.2).
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.