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Scombriformes (Mackerels) >
Gempylidae (Snake mackerels)
Etymology: Thyrsitoides: Greek, thyrsites, -ou = stalk of a plant, an ornament like a pine cone borne by Bacchus + Greek, oides = similar to (Ref. 45335).
Eponymy: Harold Walter Bell Marley (1872–1945) was Principal Fisheries Officer (1918–1937) at Durban, South Africa, and a naturalist with a particular interest in entomology. [...] (Ref. 128868), visit book page.
More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
সামুদ্রিক সমুদতলে ভাসমান বেনথোপেলাজিক; গভীরতার পরিসীমা 0 - 400 m (Ref. 6181). Deep-water; 39°N - 44°S, 25°E - 134°W (Ref. 6181)
Indo-West Pacific: Red Sea to South Africa and New Caledonia, north to Japan. Recently reported from Tonga (Ref. 53797).
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 200 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 4408); common length : 100.0 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 9784)
পৃষ্ঠীয় কাঁটা (মোট ) : 17 - 19; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 16 - 17; পায়ূ কাঁটা : 1; পায়ূর নরম পাখনা্তুন্ড: 16 - 17; কশেরুকা : 34. Two lateral lines, originating above the upper angle of gill opening, branching below the 4th dorsal-fin spine or slightly behind it, upper line running along the first dorsal-fin base and ending below about the end of the first dorsal fin, lower line abruptly curved backward from bifurcation, running mid laterally to the base of the middle caudal-fin ray. Body color is dark brown with slightly metallic reflections, sometimes slightly paler on belly. Dorsal fin membranes with black markings.
Mesobenthopelagic, down to depths of 400 m or more, often at the surface at night around Okinawa, Japan (Ref. 6181). The largest populations are probably on the slope of seamounts or ridges (Ref. 6181). Feeds on a variety of mesopelagic fish, squid and crustaceans (Ref. 6181).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
মৎস্য: গৌণ বাণিজ্যিক
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (Ref.
123201): 15.3 - 28, mean 23.7 °C (based on 1045 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00204 - 0.00890), b=3.15 (2.96 - 3.34), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 4.2 ±0.58 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).
