Malacostraca |
Decapoda |
Portunidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
; لب شور; تغييرات عمق 0 - 80 m (مرجع 125642). Tropical; 36°N - 31°S, 30°E - 135°W
Indo-Pacific. From East Africa to French Polynesia, north to Japan and south to Australia. Tropical to temperate.
Length at first maturity / Size / Weight / سن
بلوغ: Lm 8.3, range 8 - ? cm Max length : 20.0 cm CW جنس نر / بدون خواص جنسي; (مرجع 343); 21.5 cm CW (female); بيشينه سن گزارش شده: 3.00 سال ها (مرجع 128174)
Carapace finely granulose, regions just discernible; 9 teeth on each anterolateral margin, the last tooth 2 to 3 times larger than preceding teeth. Chelae elongated in males; larger chela with conical tooth at base of fingers; pollex ridged. Color: olive to dark green, with 3 prominent maroon to red spots on posterior 1/3 of carapace. Easily distinguished from other species by its very distinct color markings.
Maximum length (female) from Ref. 119750. Occurs from the intertidal zone (especially juveniles) to depths of 30 m (Ref. 343). Subtidal (Ref. 106854). Inhabits sandy to sandy-muddy substrates (Refs. 343, 106287, 125338), in bays and estuaries (Ref. 106287). Also in brackish water (Ref. 801). Subtropical and tropical climates (Ref. 343). Mainly a predator of sessile and slow-moving benthic macroinvertebrates (Ref. 102720); may be a scavenger (Ref. 100855). Omnivore (Ref. 116259).
Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Ng, P.K.L. 1998 Crabs. p. 1045-1155. In K.E. Carpenter and V.H. Niem (eds) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 2. Cephalopods, crustaceans, holothurians and sharks. Rome, FAO. 1998. pp. 687-1396. (مرجع 343)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2025-1)
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر برای انسان ها
استفاده انسانی
ماهي گيري – شيلات: تجاري
| FishSource | Sea Around Us
ابزارها
اطلاعات بيشتر
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
منابع اينترنتي
Estimates based on models
Preferred temperature
(Ref.
115969): 18.3 - 29, mean 27.5 (based on 1552 cells).
جهندگی
زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (K=0.82-1.9; tm=0.65; tmax=3).
Fishing Vulnerability
Low vulnerability (15 of 100).
Nutrients : Calcium = 109 [35, 184] mg/100g; Iron = 1.59 [1.21, 1.97] mg/100g; Protein = 20.2 [19.2, 21.3] %; Omega3 = 0.285 [0.185, 0.386] g/100g; Selenium = 48.3 [-31.7, 128.3] μg/100g; VitaminA = 0 μg/100g; Zinc = 1.79 [1.17, 2.40] mg/100g (wet weight); based on
nutrient studies.