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Scombriformes (Mackerels) >
Gempylidae (Snake mackerels)
Etymology: Rexichthys: Latin, rex, rego = king + Greek, ichthys = fish; johnpaxtoni: Named in honor of John R. Paxton, curator of the collection of fishes of the Australian Museum in Sydney (Ref. 44066).
Eponymy: Dr John Richard Paxton (d: 1938) is an American-born Australian ichthyologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.; تغييرات عمق 270 - 470 m (Ref. 9784). Deep-water; 17°S - 35°S, 140°E - 170°W (Ref. 6181)
Western Pacific: eastern coast of Australia between 17°31'S and 32°34'S, and from New Caledonia.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 22.0 cm SL جنس نر / بدون خواص جنسي; (Ref. 6181)
خارهاي باله پشتي (کل) : 19; شعاع نرم باله پشتي (کل) : 14 - 15; خارهاي باله مخرجي: 2; شعاع نرم باله مخرجي: 12 - 13; مهره ها: 34. Body moderately elongate and compressed. Two lateral lines, the lower originating below the 6th to the 7th spine of the first dorsal fin, descending sharply to ventral contour of body, dividing into a short anterior branch and a much longer posterior branch. The pelvic fin represented by 1 spine and 2 tiny soft rays in smaller specimens but entirely absent in specimens over 10 cm SL. Body color is brownish, fins hyaline; first dorsal fin with a black blotch distally on two anterior membranes.
Adults are probably benthopelagic from 400 to 470 m while juveniles are pelagic from 270 to 400 m depth.
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2024-2)
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Preferred temperature (Ref.
123201): 13.8 - 17.6, mean 17.2 °C (based on 13 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00167 - 0.00826), b=3.10 (2.91 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.5 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
![Image of Rexichthys johnpaxtoni (Paxton\](/images/thumbnails/gif/tn_Rejoh_u0.gif "Image of Rexichthys johnpaxtoni (Paxton\")
