Bivalvia |
Pectinida |
Pectinidae
Environment: milieu / climate zone / depth range / distribution range
生態學
; 深度上下限 0 - 610 m (Ref. 89006).
Indo-West Pacific: from East Africa, including Madagascar, to Melanesia; north to the Philippines and south to Queensland, New Caledonia and New Zealand.
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm Max length : 8.0 cm SHH 雄魚/尚未辨別雌雄; (Ref. 348); common length : 6.0 cm SHH 雄魚/尚未辨別雌雄; (Ref. 348)
Shell solid, medium sized, higher than long and rounded-ovate in outline. Both valves convex and subequal, the right (lower) valve a little flatter than the left (upper) valve. Ears markedly unequal in size, the anterior ones more than twice the length of the posterior ones. Ventral side of right anterior ear with a deep byssal notch and a ctenolium. Main sculpture of each valve of 20 to 26 rounded often with fine secondary radial threads, and with microscopic lines, obliquely diverging on anterior and posterior sides of valves. Ears strongly ribbed, the dorsalmost rib of right anterior ear somewhat protruding and adorned with erect spines. Interior shiny, with low, rounded radial ribs corresponding to the outer sculpture. Colour: outside of shell variable, dull purple, brown or orange, frequently variegated with paler blotches. Interior similarly coloured, suffused with white on hinge and umbonal cavity.
On sandy or muddy-sand bottoms with gravel, coral rubble, shell debris or rocks. Attached by its byssus to hard elements, even in adult stages (Ref. 8121); specifically adheres to corals or rocks among coral rubble on soft sediments (Ref. 101147). Abundant in sandy-coralline areas (Ref. 128042). Living in shallow waters (Ref. 101147) at 37 m to 71 m water depth (Ref. 89006).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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.
主要參考資料
參考文獻 | 合作者 | 合作者
Spurgeon, A. 2007. (Ref. 8121)
IUCN 瀕危狀態 (Ref. 130435)
CITES狀態 (Ref. 108899)
Not Evaluated
Not Evaluated
對人類具威脅
人類使用
漁業: 商業性
| FishSource | 周邊海洋
工具
網路資源
Estimates based on models
Preferred temperature
(Ref.
115969): 12.7 - 26.7, mean 19.9 (based on 877 cells).
回復力
高度, 族群倍增時間少於 15個月 (K=0.46-0.65).