Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Thuộc về nước lợ; Mức độ sâu 0 - 20 m (Ref. 101198). Tropical, preferred 27°C (Ref. 107945); 46°N - 39°S, 26°E - 134°W (Ref. 106948)
Indo-Pacific.
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?, range 2 - 2.1 cm Max length : 9.0 cm SHL con đực/không giới tính; (Ref. 348); common length : 6.0 cm SHL con đực/không giới tính; (Ref. 348); Tuổi cực đại được báo cáo: 12 các năm (Ref. 126573)
Shell equivalve, thick and solid, ovate, strongly inflated, slightly longer than high and feebly inequilateral. Umbones strongly protruding, cardinal area rather large. About 18 radial ribs (15 to 20) with wide interstices at each valve; ribs stout and distinctly rugose, bearing regular, often rectangular nodules. Periostracum rather thin and smooth. Internal margins with strong crenulations corresponding with the external radial ribs. No byssal gape. Colour: outside of shell white under the yellowish brown periostracum. Inner side white, often tinged yellow towards the umbonal cavity.
This represents the most important commercial ark (Ref. 348). Lives in intertidal and shallow subtidal waters. On muddy bottoms, mainly in protected bays and estuaries, or in mangroves. Often occurring in dense populations (Ref. 348). Typically found in the intertidal with silty bottoms with low salinity. A filter-feeder and a shallow burrower. Primarily feeds on organic detritus, phytoplankton and detritus (Ref. 101198).
Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.
Poutiers, J.M. 1998. (Ref. 348)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Các nghề cá: Tính thương mại
FAO - Nuôi trồng thủy sản: Sản xuất; Các nghề cá: landings, species profile | FishSource | Biển chung quanh ta
Các công cụ
Các nguồn internet
Estimates based on models
Preferred temperature
(Ref.
115969): 21.8 - 29.3, mean 28.4 (based on 3701 cells).
Thích nghi nhanh
Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (K=0.54-4.34; tm=0.6; tmax=12).
Prior r = 0.85, 95% CL = 0.56 - 1.28, Based on 2 data-limited stock assessments.
Vulnerability
Low vulnerability (10 of 100).
