Gastropoda |
Trochida |
Tegulidae | Trochinae
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
Benthic; intervalo de profundidade 0 - 20 m (Ref. 349). Tropical; 32°N - 25°S, 45°E - 171°E (Ref. 81851)
Indo-Pacific: from Madagascar, Sri Lanka, Andaman and Nicobar Islands, to as far east as French Polynesia, north to southern Japan and Hawaii, and south to Australia.
Comprimento na primeira maturidade / Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm Max length : 15.0 cm SHH macho/indeterminado; (Ref. 349); common length : 11.0 cm SHL macho/indeterminado; (Ref. 349)
Shell conical, large, thick and very heavy. Body whorl almost smooth, with concave sides above a protuding, acutely rounded and thickened periphery. Base shell flat. Aperture squarish. Colouration: shell off-white, with large irregular axial reddish stripes (Ref. 128042).
It is the most economically important gastropod species in the tropical West Pacific. It is both an important traditional food and a leading export item used as a source of mother-of-pearl material for buttons and jewelry. Many small sized artisanal fisheries for meat and shell exist in other islands of the area. Due to severe and frequent overfishing, management policies are often adopted and aquaculture trials are under way (Ref. 349). Maximum depth from Ref. 799. Typically found in shallow, high energy portions of barrier and reefs (Refs. 349, 128042). Feeds on filamentous algae and generally avoids bottoms of sand and living corals. Population density generally decreasing in deeper areas, while the mean size of individuals increases (Ref. 349).
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Breeding period is marked by spring tides with external fertilization and nocturnal spawning.
Poutiers, J.M. 1998 Gastropods. p. 363-648. In Carpenter, K. E. and V. H. Niem. 1998. FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 1. Seaweeds, corals, bivalves, and gastropods. Rome, FAO. (Ref. 349)
Categoria na Lista Vermelha da IUCN
(Ref. 130435: Version 2025-2 (Global))
Categoria CITES (Ref. 108899)
Not Evaluated
Not Evaluated
Ameaça para o homem
Harmless
Utilização humana
Pescarias: espécies comerciais
FAO - pescarias: desembarques | FishSource | Sea Around Us
Ferramentas
Mais informação
FisiologiaConsumo de oxigénio
Relacionado com o ser humanoSelos, moedas, diversos.
Fontes da internet
Estimativas baseadas em modelos
Temperatura preferida
(Ref.
115969): 26.3 - 29.3, mean 28.7 (based on 2725 cells).
Resiliência
Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (K=0.19-0.36).
Vulnerabilidade da pesca
Low to moderate vulnerability (33 of 100).
Categoria de preço
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.
