Bivalvia |
Arcida |
Arcidae
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
Benthic; खारा; गहराई सीमा 0 - 20 m (संदर्भ 101198). Tropical, preferred 27°C (संदर्भ 107945); 46°N - 39°S, 26°E - 134°W (संदर्भ 106948)
Indo-Pacific.
प्रथम परिपक्वता पर लंबाई / आकार / वज़न / आयु
परिपक्व अवधि: Lm ?, range 2 - 2.1 cm Max length : 9.0 cm SHL पुल्लिंग / अलिंग; (संदर्भ 348); common length : 6.0 cm SHL पुल्लिंग / अलिंग; (संदर्भ 348); अधिकतम सूचित उम्र: 12 वर्षो (संदर्भ 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 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)
आईयूसीएन रेड लिस्ट स्थिति
(संदर्भ 130435: Version 2025-2 (Global))
CITES स्थिति (संदर्भ 108899)
Not Evaluated
CMS (संदर्भ 116361)
Not Evaluated
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
मात्स्यिकी: व्यापारिक
FAO - Aquaculture Systems: production searchमात्स्यिकी: प्रजातियों की प्रोफ़ाइल, landings search; Publication: search | FishSource | हमारे चारों ओर समुद्र
साधन
अधिक जानकारी
फिजियोलॉजीप्राणवायु की खपत
मानव संबंधीटिकट, सिक्के, विविध.
इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
लौटाव
(Ref. 69278): |
ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (K=0.54-4.34; tm=0.6; tmax=12) |
Rate of population increase
|
Prior r = 0.85, 95% CL = 0.56 - 1.28, Based on 2 data-limited stock assessments. |
मछली पकड़ने की भेद्यता
(संदर्भ 71543) |
Low to moderate vulnerability (28 of 100). |
जलवायु भेद्यता
(संदर्भ 125649) |
High vulnerability (61 of 100) |
मूल्य श्रेणी
(संदर्भ 80766): |
Medium. |
Nutrients
|
Calcium = 149 [71, 228] mg/100g; Iron = 8.53 [1.95, 15.11] mg/100g; Protein = 9.88 [8.64, 11.12] %; Omega3 = 0.313 [0.202, 0.423] g/100g; Selenium = 61 [50, 72] μg/100g; VitaminA = 0 μg/100g; Zinc = 2.04 [0.56, 3.51] mg/100g (wet weight); based on nutrient studies. |
