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Gonorynchiformes (Milkfishes) >
Chanidae (Milkfish)
Etymology: Chanos: Greek, chanos, -eos, ous, and chasma, -atos = abyss, mouth opened, inmensity (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
সামুদ্রিক; স্বাদু পানি; ঈষৎ লোনা সমুদতলে ভাসমান বেনথোপেলাজিক; এ্যামফিড্রমাস (Ref. 51243); গভীরতার পরিসীমা 1 - 30 m (Ref. 6898), usually ? - 15 m (Ref. 89972). Tropical; 15°C - 43°C (Ref. 43081); 46°N - 52°S, 19°E - 77°W
Indo-Pacific: along continental shelves and around islands, where temperatures are greater than 20°C. Red Sea and South Africa to Hawaii and the Marquesas, north to Japan, south to Victoria, Australia. Eastern Pacific: San Pedro, California to the Galapagos.
Length at first maturity / আকৃতি / ওজন / Age
Maturity: Lm 86.1, range 68 - 70 cm
Max length : 180 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 9710); 124.0 cm SL (female); common length : 100.0 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 9814); সবের্াচ্চ প্রকাশিত ওজন : 14.0 kg (Ref. 9814); সর্বোচ্চ উলি্ল্লখিত বয়স : 15 বৎসর (Ref. 9814)
পৃষ্ঠীয় কাঁটা (মোট ) : 2; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 13 - 17; পায়ূ কাঁটা : 2; পায়ূর নরম পাখনা্তুন্ড: 8 - 10; কশেরুকা : 46. This species is characterized by the following: body elongate and somewhat compressed; mouth small and toothless; single dorsal about mid-level of the body; pectoral fins falcate; caudal fin large and deeply forked; no scutes on belly; branchiostegal rays 4. Colour of the body olive green dorsally; flanks silvery; unpaired fins with dark margins (Ref. 49, 117228).
Adults are found in offshore marine waters and shallow coastal embayments, but also frequently enter estuaries and occasionally penetrate freshwater streams (Ref. 44894, 52331). They occur in small to large schools near the coasts or around islands where reefs are well developed. Eggs and larvae are pelagic up to 2-3 weeks. Older larvae migrate onshore and settle in coastal wetlands (mangroves, estuaries) during the juvenile stage, or occasionally enter freshwater lakes. Juveniles and sub-adults return to sea where they mature sexually. Mature adults spawn only in fully saline water. Larvae eat zooplankton; juveniles and adults eat cyanobacteria, soft algae, small benthic invertebrates, and even pelagic fish eggs and larvae. Larvae are collected from rivers and are grown in culture ponds into juveniles which are marketed fresh, smoked, canned or frozen. Brood stocks can be raised and spawned in captivity to produce larvae in the hatchery (Ref. 12868). This species can thrive and grow in water as hot as 32° C (Ref. 9987).
Spawns in clear shallow waters above a bottom of sand or coral and at a distance of not more than 30 km from the shore. Females spawn up to 5 million eggs which hatch in about 24 hr. The larvae seek out clear coastal and estuarine waters warmer than 23°C with 10-32 salinity and abundant phytoplankton. Spawning and fertilization take place at night.
Bagarinao, T., 1994. Systematics, distribution, genetics and life history of milkfish, Chanos chanos. Environ. Biol. Fishes 39(1):23-41. (Ref. 9814)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
মৎস্য: অত্যন্ত বাণিজ্যিক ; এ্যাকুয়াকালচার (জলজ পালন) : বাণিজ্যিক; শিকারযোগ্য মাছ: হঁ্যা ; স্পশর্ী : usually
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (Ref.
123201): 20.7 - 29.2, mean 28.2 °C (based on 4182 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00651 - 0.01113), b=3.06 (2.98 - 3.14), in cm total length, based on LWR estimates for this species (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 2.6 ±0.18 se; based on food items.
স্থিতিস্থাপক (Ref.
120179): নিম্ন/ , সর্বনিম্ন প্রজন দ্বিগুনের সময় ৪.৪-১৪ বৎসর (tm=4-8; tmax=15; Fec=200,000).
Prior r = 0.28, 95% CL = 0.19 - 0.42, Based on 3 data-limited stock assessments.
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Climate Vulnerability (Ref.
125649): High to very high vulnerability (66 of 100).
Nutrients (Ref.
124155): Calcium = 46.4 [25.2, 89.0] mg/100g; Iron = 0.661 [0.361, 1.169] mg/100g; Protein = 19.8 [15.5, 22.5] %; Omega3 = 0.111 [0.053, 0.225] g/100g; Selenium = 87.2 [39.4, 201.1] μg/100g; VitaminA = 11.4 [3.5, 34.1] μg/100g; Zinc = 1.39 [0.95, 2.06] mg/100g (wet weight); based on
nutrient studies.
