Bivalvia |
Pectinida |
Pectinidae
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
Benthic; 深度上下限 10 - 160 m (參考文獻 348). Tropical; 31°N - 21°S, 92°E - 156°E
Indo-West Pacific: from Myanmar to Dampier Archipelago, north to southern Japan and east to Papua New Guinea.
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm ?, range 5 - ? cm Max length : 10.0 cm ShL 雄魚/尚未辨別雌雄; (參考文獻 348); common length : 8.0 cm SL 雄魚/尚未辨別雌雄; (參考文獻 348); 最大年齡: 2.00 年 (參考文獻 84612)
Shell thin, medium sized (commonly attaining 8 cm in length), laterally compressed, almost circular in outline, gaping anteriorly and posteriorly. Both valves somewhat convex, the right (lower) valve only a little more inflated and large than the left (upper) valve. Ears moderately small, subequal in size and shape, with the right anterior ear slightly sinuated anteroventrally and devoid of ctenolium. Surface of left valve with 2 broad and very shallow depressed areas radiating from the umbo to anteroventral and posteroventral margins. Outside of shell polished and nearly smooth, with only many faint concentric and radial lines. Interior of both valves with distinct radial ribs, usually in pairs, much narrower than the flat interstices and becoming obsolete on umbonal area. Right valve with 22 to 34 internal radial ribs (usually 26 to 34 in the typical subspecies Amusium pleuronectes pleuronectes, and 22 to 24 in the southern subspecies A. pleuronectes australiae). Colour: outside of left valve with light to deep pinky brown of varying shades along concentric growth marks, and with darker radial lines and tiny white dots on umbonal area. Interior of left valve whitish, often with a pinkish hue on margins and central area, and with a brown blotch under the hinge. Right valve white externally and internally.
Maximum depth from Ref. 101147. It is part of trawl bycatch (Ref. 128042). Widely distributed in Indo-Pacific coasts (Ref. 122164). Occurs in large schools in shallow waters with sand and muddy bottoms (Ref. 80041). Also found on clean sand with silt and shell rubble, where the lower right valve is buried in soft sediment (Ref. 101147) as well as on river mouth and estuary (Ref. 122165).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Spawning occurs throughout the year (Ref. 84612). Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam (Ref. 833).
主要參考資料
參考文獻 | 合作者 | 合作者
Poutiers, J.M. 1998 Bivalves. Acephala, Lamellibranchia, Pelecypoda. p. 123-362. 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. (參考文獻 348)
IUCN 瀕危狀態
(參考文獻 130435: Version 2025-2 (Global))
CITES狀態 (參考文獻 108899)
Not Evaluated
Not Evaluated
對人類具威脅
Harmless
人類使用
漁業: 商業性
FAO - Publication: search | FishSource |
工具
網路資源
基於模型的估計
回復力
(Ref. 69278): |
高度, 族群倍增時間少於 15個月 (K=0.92-1.3; tm=1; tmax=2) |
釣魚的脆弱性
(參考文獻 71543) |
Low vulnerability (10 of 100). |
價格種類
(參考文獻 80766): |
Medium. |
