Taxonomic Remarks
There has been much confusion in the past literature between the names Chrysophrys aurata/us, Pagrus aurata/us and Sparus aurata/us, that were used for two different species: Pagrus auratus (Forster, 1801) from the West Pacific on one side, Sparus aurata Linnaeus, 1758 from the Northeast and Central Atlantic on the other side, Check the geographic origin of specimens when these names are used in the literature.
পরিবেশ: পরিবেশ / জলবায়ু অঞ্চল / গভীরতার পরিসীমা / বিতরণ পরিসীমা
বাস্তুসংস্থান
সামুদ্রিক; ঈষৎ লোনা রীফ সংশ্লিষ্ট; মহাসাগরে বিচরনক্ষম (Ref. 51243); গভীরতার পরিসীমা 0 - 200 m (Ref. 28569). Subtropical; 44°N - 47°S, 90°E - 175°W
Indo-Pacific: widely occurring off New Zealand, Australia, Philippines, Indonesia, China, Taiwan, and Japan. Populations in the northern and southern hemispheres are independent and isolated but were similar enough to be declared one and the same species (Ref. 28569, 28591).
প্রথম পরিপক্কতার সময় দৈর্ঘ্য / আকৃতি / ওজন / বয়স
পরিপক্কতা : Lm 26.2, range 20 - 28 cm
Max length : 130 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 2334); common length : 40.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 3243); সবের্াচ্চ প্রকাশিত ওজন : 20.0 kg (Ref. 28591); সর্বোচ্চ উলি্ল্লখিত বয়স : 54 বৎসর (Ref. 92924)
Inhabit rocky reefs (Ref. 9702). Also occur in estuaries (Ref. 9563). Juveniles mainly inhabit inlets, bays and other shallow, sheltered marine waters, often over mud and seagrass (Ref. 6390). Small fish measuring less than 30 cm TL are common inshore around reef areas often in groups of around 30 individuals. Larger fish are shy and are less frequently seen (Ref. 26966). Adults often live near reefs, but are also found over mud and sand substrates (Ref. 6390). They are relatively sedentary. However, tagging studies have shown them capable of substantial migrations (Ref. 28591). Crustaceans (crabs, shrimps, etc) form the basis of the diet, but marine worms, starfish, sea urchins, shellfish and fish are also important (Ref. 28591). Not commercially cultured at present but considered as a prime aquaculture candidate (Ref. 28590). Maximum estimated age for SW Pacific is 54 years with validated longevity on the order of 40 years based on minimum age from bomb radiocarbon dating (Ref. 92924; Allen Andrews, pers.comm. 01/13). It is parasitised by the monogenean Anoplodiscus cirrusspiralis on the fins and body surface (Ref. 124057).
Mature adults form large schools in preferred spawning areas (Ref. 6390). They are serial spawners (Ref. 6390). Spawning generally occurs in waters less than 50 m deep (Ref. 6390). They generally only spawn when water temp is equal to 18°C (Ref. 6390).
There have been no investigations of sex reversals in Australian snapper populations. However, in New Zealand, some juvenile snapper change sex from female to male but all such changes are completed by the onset of maturity (Ref. 28040).
Paulin, C.D., 1990. Pagrus auratus, a new combination for the species known as "snapper" in Australasian waters (Pisces: Sparidae). N.Z. J. Mar. Freshwat. Res. 24(2):259-265. (Ref. 28569)
আইইউসিএন রেড লিস্টের অবস্থা (Ref. 130435: Version 2025-2 (Global))
মানুষের জন্য হুমকি
Harmless
মানুষের ব্যবহার
মৎস্য: বাণিজ্যিক; এ্যাকুয়াকালচার (জলজ পালন) : পরীক্ষামূলক ; শিকারযোগ্য মাছ: হঁ্যা
হাতিয়ার
বিশেষ প্রতিবেদন
XML ডাউনলোড করুন
ইন্টারনেট সুত্র
মডেলের উপর ভিত্তি করে অনুমান
পছন্দের তাপমাত্রা (সূত্র
123201): 14 - 25.2, mean 17.4 °C (based on 293 cells).
ফাইলোজেনেটিক বৈচিত্র্য সূচক (সূত্র
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01256 - 0.03811), b=2.97 (2.82 - 3.12), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
ট্রফিক পর্যায়ে (সূত্র
69278): 3.6 ±0.2 se; based on diet studies.
স্থিতিস্থাপক (সূত্র
120179): নিম্ন/ , সর্বনিম্ন প্রজন দ্বিগুনের সময় ৪.৪-১৪ বৎসর (tmax=11).
Prior r = 0.34, 95% CL = 0.23 - 0.52, Based on 3 full stock assessments.
মাছ ধরার ঝুঁকিপূর্ণতা (Ref.
59153): High to very high vulnerability (69 of 100).
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জলবায়ু ঝুঁকিপূর্ণতা (Ref.
125649): High vulnerability (60 of 100).
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পৌষ্টিক উপাদান (Ref.
124155): Calcium = 12 [5, 25] mg/100g; Iron = 0.581 [0.194, 1.769] mg/100g; Protein = 20.8 [19.1, 22.7] %; Omega3 = 0.139 [0.067, 0.297] g/100g; Selenium = 24.5 [10.4, 61.8] μg/100g; VitaminA = 18.4 [3.6, 93.0] μg/100g; Zinc = 0.569 [0.277, 1.225] mg/100g (wet weight);
