Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
সামুদ্রিক রীফ সংশ্লিষ্ট; গভীরতার পরিসীমা 0 - 12 m (Ref. 9710), usually 0 - 2 m (Ref. 40849). Tropical; 33°N - 30°S, 82°W - 14°W
Western Atlantic: Bermuda, Florida (USA), and the Bahamas to the Antilles (Ref. 26340) and Brazil. Eastern Atlantic: Cape Verde (Ref. 34514) and Ascension Island (Ref. 4450). The only record from West Africa is probably erroneous (Ref. 4450). Also southern Atlantic islands (Ref. 26938).
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 165 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 26340); common length : 40.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 5217)
With short blunt snout, yellow chain-like markings, teeth bluntly pointed or molar-like especially on roof of mouth (Ref. 26938).
A benthic and solitary species (Ref. 26340) found commonly on reefs and rocky shore areas. Feeds on small fishes and crustaceans (Ref. 5521). At Fernando de Noronha Archipelago, off NE Brazil, forages for sally lightfoot crabs (Grapsus grapsus) on exposed reefs at ebb tide and in tide-pools mostly at daytime. Able to withstand up to 30 minutes out of water while foraging, uses four main tactics both in and out of the water. Searches for prey at pool rims and rock bases poking into crevices and holes, stealthily approaches previously sighted prey, chases prey and ambushes prey from under rocks and crevices. Hunting success varies with employed tactic, but overall success is about 50%. May move up to 6 meters in about 1 hour while foraging on the exposed reef. Its crab hunting is mostly visually guided and a fish darting nearby a stealthily foraging moray may cause it to miss the strike; the missed crab may be chased up to 5 m on the reef. Able to strike with its body partly or entirely out of the water, usually strikes from a distance of 5 to10 centimeters. Small crabs are swallowed whole, whereas larger ones are torn apart by a combination of tugging, rotating, knotting, and thrashing movements. Handling time is related to prey size, the largest crabs (carapace width 2.3-3.2 times larger than moray’s head width) broken up and swallowed within 90 to 240 seconds. Attracted to plastic or rubber decoys dragged on a nylon string nearby, striking at these (Ref. 50922).
Life cycle and mating behavior
Maturities | প্রজনন | Spawnings | Egg(s) | Fecundities | শুককীট
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
মৎস্য: গৌণ বাণিজ্যিক ; মৎস্যাধার / এ্যাকুয়ারিয়াম : বাণিজ্যিক
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (Ref.
123201): 26.1 - 28.1, mean 27.4 °C (based on 527 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00050 (0.00025 - 0.00101), b=3.26 (3.10 - 3.42), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.6 ±0.59 se; based on food items.
স্থিতিস্থাপক (Ref.
120179): অত্যন্ত কম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৪ বৎসর (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Nutrients (Ref.
124155): Calcium = 22.6 [11.1, 35.5] mg/100g; Iron = 0.395 [0.221, 0.871] mg/100g; Protein = 18.8 [16.4, 21.4] %; Omega3 = 0.0759 [, ] g/100g; Selenium = 41.4 [20.4, 88.3] μg/100g; VitaminA = 44.8 [10.8, 165.3] μg/100g; Zinc = 0.937 [0.641, 1.355] mg/100g (wet weight);
