Salvelinus namaycush (Walbaum, 1792)
Lake trout
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Salvelinus namaycush
foto/gambar oleh Muséum-Aquarium de Nancy/D. Terver
Gambar | video | Perangko, koin, dll. | imej Google
foto/gambar oleh Muséum-Aquarium de Nancy/D. Terver
klasifikasi / Nama Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | ITIS | CoL | WoRMS | Cloffa
> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Salvelinus: Old name for char; it is the same root of german "saibling" = little salmon (Ref. 45335).
More on author: Walbaum.
Etymology: Salvelinus: Old name for char; it is the same root of german "saibling" = little salmon (Ref. 45335).
More on author: Walbaum.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi Ekologi
; air tawar bentopelagis; potamodromous (Ref. 126106); kisaran kedalaman 3 - 61 m (Ref. 120394), usually 18 - 53 m (Ref. 1998). Temperate; 4°C - 13°C (Ref. 120394); 75°N - 38°N, 168°W - 67°W (Ref. 86798)
Penyebaran Wilayah | Daerah-daerah FAO | Ekosistem | Kemunculan | peta titik | Introduksi | Faunafri
North America: Atlantic, Arctic, and Pacific basins from northern Canada and Alaska south to New England in USA, Great Lakes, and northern Montana, USA. Introduced widely to many areas outside its native range.
Splakes (hybrid between Salvelinus namaycush and Salvelinus fontinalis) have also been successfully introduced to many areas of North America. The three observed phenotypes existing in Lake Superior (lean, siscowet and humper or paperbelly) are under some genetic control and not merely expressions of environmental adaptation (Ref. 40529).
Panjang pada saat jatuh tempo pertama / Ukuran / Berat / umur
Kematangan: Lm 51.6, range 42 - 50 cm
Max length : 150 cm TL jantan/; (Ref. 40637); common length : 50.0 cm TL jantan/; (Ref. 6114); Berat maksimum terpublikasi: 32.7 kg (Ref. 40637); Umur maksimum dilaporkan: 50 Tahun (Ref. 3494)
Max length : 150 cm TL jantan/; (Ref. 40637); common length : 50.0 cm TL jantan/; (Ref. 6114); Berat maksimum terpublikasi: 32.7 kg (Ref. 40637); Umur maksimum dilaporkan: 50 Tahun (Ref. 3494)
deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Duri punggung (Keseluruhan (total)) : 4 - 5; duri punggung lunak (Keseluruhan (total)) : 8 - 10; Duri dubur: 4 - 5; Sirip dubur lunak: 8 - 10; vertebrata, bertulang belakang: 61 - 69. Distinguished by its color, white or yellowish spots on a dark green to grayish background, its deeply forked tail and its numerous pyloric caeca. Lateral line slightly curved anteriorly; pelvic fins with small axillary process (Ref. 27547). Body typically trout-like, elongate, somewhat rounded. Head stout, broad dorsally; mouth large, terminal, snout usually protruding slightly beyond lower jaw when mouth is closed. Back and sides usually dark green liberally sprinkled with whitish to yellowish (never pink or red) spots; overall color varies from light green to gray, brown, dark green or nearly black; belly white; pale spots present on dorsal, adipose and caudal fins and usually on base of anal; sometimes orange-red on paired fins, especially in northern populations; anterior edge of paired and anal fins sometimes with a white border. At spawning time, males develop a dark lateral stripe and become paler on the back (Ref. 27547). Caudal fin with 19 rays (Ref. 2196). Distinguished from congeners in Europe by the unique dark brown head, body, dorsal and caudal fins, covered by small pale spots; differs also by its deeply forked caudal fin (Ref. 59043).
Body shape (shape guide): fusiform / normal; Cross section: oval.
Body shape (shape guide): fusiform / normal; Cross section: oval.
Adults ocur in shallow and deep waters of northern lakes and streams and is restricted to relatively deep lakes in the southern part of its range (Ref. 5723, 86798). Rarely found in brackish water (Ref. 11980). A solitary wanderer, the extent of their movements apparently limited by the size of the lake and individual (Ref. 27547). Although lake trout generally feed on a variety of organisms such as freshwater sponges, crustaceans, insects, fishes (with a preference for ciscoes), and small mammals, some populations feed on plankton throughout their lives (Ref. 27547). Such plankton-feeding lake trout grow more slowly, mature earlier and at smaller size, die sooner and attain smaller maximum size than do their fish-eating counterparts (Ref. 30351). Lake trout are highly susceptible to pollution, especially from insecticides (Ref. 14019, 27547). Utilized as a food fish, its flesh is usually of a yellow or creamy color but may be anything from white to orange (Ref. 27547). Often caught by fishers (Ref. 30578).
Siklus hidup dan perilaku kawin Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
The spawning act occurs mostly at night, with peak activity between dusk and 9 or 10 pm (Ref. 28805, 28815). During the day the fish are more or less dispersed away from the spawning beds but return in considerable numbers in the late afternoon (Ref. 27547). Males reach spawning beds first and spend some time cleaning the rocks. Females arrive a few days later and are courted by the males. During and following courtship, the males attempt to spawn with the females. One or two males approach a female, press against her sides and quiver. The eggs fall into the crevices and the spawners disperse. The act is repeated until the female releases all her eggs (Ref. 1998, 27547). On occasion, as many as seven males and three females may engage in a mass spawning act (Ref. 28815). Spawning occurs annually in southern areas, every other year in Great Slave Lake, Northwest Terrritories, and only every other year in Great Bear and some other lakes of the arctic (Ref. 1153, 28802, 28860).
rujukan utama
Unggah referensi Anda | Acuan | Koordinator | mitra
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
kurang bimbang (LC) ; Date assessed: 05 September 2020
CITES
Not Evaluated
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial; Budidaya air: komersial; Ikan buruan: ya
FAO - Perikanan: pendaratan; Publication: search | FishSource |
informasi lanjut
Dinamika populasi
Parameter pertumbuhan
Maks. usia / ukuran
Panjang-berat rel.
Panjang-panjang rel.
ukuran frekuensi
Konversi massa
pemulihan
Kelimpahan
Parameter pertumbuhan
Maks. usia / ukuran
Panjang-berat rel.
Panjang-panjang rel.
ukuran frekuensi
Konversi massa
pemulihan
Kelimpahan
Siklus hidup
Reproduksi, perkembang biakan
Kematangan
Kedewasaan / insang rel.
Fekunditas
Pemijahan
Agregasi pemijahan
telur-telur
pekembangan telor
Larva
Dinamika larva
Reproduksi, perkembang biakan
Kematangan
Kedewasaan / insang rel.
Fekunditas
Pemijahan
Agregasi pemijahan
telur-telur
pekembangan telor
Larva
Dinamika larva
Fisiologi
Komposisi tubuh
Nutrisi
Konsumsi oksigen
Jenis renang
Kecepatan berenang
Pigmen visual
Suara ikan
Penyakit & Parasit
Toksisitas (LC50)
Komposisi tubuh
Nutrisi
Konsumsi oksigen
Jenis renang
Kecepatan berenang
Pigmen visual
Suara ikan
Penyakit & Parasit
Toksisitas (LC50)
Yang berhubungan dengan manusia
Sistem akuakultur
profil budidaya air
Strain
Kasus Ciguatera
Perangko, koin, dll.
Sistem akuakultur
profil budidaya air
Strain
Kasus Ciguatera
Perangko, koin, dll.
Alat, peralatan
E-book | Penuntun lapangan | Kunci identifiaksi (pengenalan) | tanda freqkuenci panjang | peringkat sejarah hidup | peta titik |
Tangkap-MSY |
laporan khas
muat turun XML
Sumber internet
AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | semak peneliti ikan | CISTI | Catalog of Fishes: Marga, Jenis | DiscoverLife | ECOTOX | FAO - Perikanan: pendaratan; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | Pangkalan data nasional | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: pergi, Cari | World Records Freshwater Fishing | Catatan Zoologi
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00711 - 0.00974), b=3.02 (2.98 - 3.06), in cm total length, based on LWR estimates for this species (Ref. 93245).
Tingkat Trofik (Acuan 69278): 4.3 ±0.5 se; based on diet studies.
Generation time: 6.5 (4.4 - 9.1) years. Estimated as median ln(3)/K based on 32 growth studies.
Daya lenting (Acuan 120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (K=0.05-0.12; tm=5-20; tmax=50; Fec=5,000).
Nutrisi (Ref. 124155): Calcium = 5.7 [3.5, 10.8] mg/100g; Iron = 0.366 [0.232, 0.579] mg/100g; Protein = 18.5 [17.1, 20.0] %; Omega3 = 1.71 [0.52, 5.82] g/100g; Selenium = 17.6 [5.5, 58.3] μg/100g; VitaminA = 31.9 [8.9, 117.6] μg/100g; Zinc = 0.573 [0.428, 0.819] mg/100g (wet weight); based on nutrient studies.