Bivalvia |
Arcida |
Arcidae
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; गहराई सीमा 0 - 25 m (संदर्भ 348). Tropical
Indo-West Pacific. Climate: tropical to subtropical.
Length at first maturity / आकार / Weight / Age
परिपक्व अवधि: Lm ? range ? - ? cm Max length : 5.0 cm TL पुल्लिंग / अलिंग; (संदर्भ 348); common length : 4.0 cm TL पुल्लिंग / अलिंग; (संदर्भ 348)
Shell solid, laterally compressed and subrectangular in shape, very inequilateral, much longer than high and wider posteriorly; slightly inequivalve, left valve somewhat overlapping the right valve on posteroventral margin. Umbones small and situated anteriorly, cardinal area long and narrow. About 28 radial ribs (25 to 33) at each valve; ribs low and flat, wider than the interstices, slightly granulated on the anterior part of left valve. Periostracum coarse, concentrically striated. Internal margins with crenulations corresponding with the external radial ribs. No byssal gape. Colour: outside of shell whitish under the blackish brown periostracum. Inner side white, often tinged pale grey at periphery.
This species is considered to have a wide range, but the relationship between the Indian Ocean and West Pacific forms is insufficiently known (Ref. 348). On sand and mud bottoms. Littoral and sublittoral to a depth of 25 m (Ref. 348).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | Eggs | Fecundity | Larvae
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 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. (संदर्भ 348)
IUCN Red List Status
(संदर्भ 130435: Version 2025-1)
CITES status (संदर्भ 108899)
Not Evaluated
CMS (संदर्भ 116361)
Not Evaluated
Threat to humans
Harmless
Human uses
मात्स्यिकी: व्यापारिक
| FishSource |
साधन
अधिक जानकारी
Trophic EcologyFood items (preys)
संघटक आहार
आहार खपत
परभक्षी
Population dynamicsबाढ़
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
बहुतायत
Life cycleपुनरुत्पत्तिपरिपक्व अवधिFecundityमछलीऔ का अंडे देनाEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
इंटरनेट स्रोत
Estimates based on models
Preferred temperature
(Ref.
115969): 22.5 - 29.2, mean 28.6 (based on 2384 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
