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Scombriformes (Mackerels) >
Gempylidae (Snake mackerels)
Etymology: Tongaichthys: From the Tonga island in the Pacific ocean + Greek, ichthys = fish.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
laut batipelagis; kisaran kedalaman 288 - 312 m (Ref. 6181). Deep-water; 12°S - 27°S, 144°E - 174°W (Ref. 6181)
Pacific Ocean: Several specimens (38 individuals) were reported from the Tonga Ridge; around Fiji; 1 specimen from off Flinders Reef, Queensland (17°33'S, 149°46'E, CSIRO no. H1185-01).
Ukuran / Berat / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 30.0 cm SL jantan/; (Ref. 9784)
Duri punggung (Keseluruhan (total)) : 16 - 17; duri punggung lunak (Keseluruhan (total)) : 14 - 17; Duri dubur: 1; Sirip dubur lunak: 14 - 16; vertebrata, bertulang belakang: 33. Head relatively large. Scales on cheeks enlarged, elongate and slightly overlapping. Color is dark brown above, slightly paler below.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Probably mesopelagic or mesobenthopelagic (Ref. 6181).
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)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01023 (0.00421 - 0.02490), b=3.00 (2.79 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Tingkat Trofik (Acuan 69278) |
3.9 ±0.6 se; based on size and trophs of closest relatives |
Daya lenting (Acuan 120179) |
sedang, Waktu penggandaan populasi minimum 1.4 - 4.4 tahun (Assuming tmax>3). |
Kerentanan Penangkapan Ikan (Ref. 59153) |
Low to moderate vulnerability (30 of 100). 🛈 |