Salvelinus namaycush, Lake trout : fisheries, aquaculture, gamefish

Salvelinus namaycush (Walbaum, 1792)

Lake trout
ອັບໂຫລດຂອງທ່ານ ຮູບພາບ ແລະ ວິດີໂອ
ຮູບ | ວິດີໂອ | ສະແຕມ, ຫຼຽນ, ອື່ນໆ. | Google image
Image of Salvelinus namaycush (Lake trout)
Salvelinus namaycush
ຮູບພາບໂດຍ Muséum-Aquarium de Nancy/D. Terver

ການຈັດປະເພດ / ຊື່ ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes(ຕະກຸນ, ຊະນິດ) | 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.

ສະພາບແວດລ້ອມ: ສະພາບແວດລ້ອມ / ເຂດ​ດິນ​ຟ້າ​ອາ​ກາດ​ / ລະດັບຄວາມເລິກ / ຂອບເຂດການແຈກຢາຍ ນິເວດວິທະຍາ

; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ; ກຸ່ມຫຼືຊະນິດປາທີ່ມີການເຄື່ອນຍ້າຍພາຍໃນນ້ຳຈືດ (Ref. 126106); ລະດັບຄວາມເລິກ 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)

ການແຜ່ກະຈາຍ ອານາເຂດ | ເຂດ FAO | ລະບົບນິເວດ | ການປະກົດຕົວ | ຈຸດໃດໜຶ່ງທີ່ສະແດງອອກໃນແຜນທີ່ (ພ້ອມທັງສະແດງຂໍ້ມູນເພີ້ນເຕີມ) | ການແນະນຳ | 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).

ຄວາມ​ຍາວ​ໃນ​ການ​ເຕີບ​ໂຕ​ເຕັມ​ຄັ້ງ​ທໍາ​ອິດ​ / ຂະໜາດ / ນ້ຳໜັກ / ອາຍຸ

ການຈະເລີນເຕັມໄວ: Lm 51.6, range 42 - 50 cm
Max length : 150 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 40637); common length : 50.0 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 6114); ນ້ຳໜັກສູງສຸດທີ່ເຄຍຈັດພີມມາ: 32.7 kg (Ref. 40637); ອາຍຸສູງສຸດທີ່ເຄຍລາຍງານມາ: 50 ປີ (Ref. 3494)

ຄຳອະທິບາຍສັ້ນໆ ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 4 - 5; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 8 - 10; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ ກຸ່ມປາກະດູກແຂງ ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ ຄີກົ້ນຂອງປາ ສັດທີ່ມີກະດູກສັນຫັຼງ ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 4 - 5; ຄີກົ້ນຂອງປາ: 8 - 10; ສັດທີ່ມີກະດູກສັນຫຼັງ: 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.

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

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).

ວົງຈອນຊີວິດ ແລະພຶດຕິກໍາການຫາຄູ່ ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ

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).

ເອກະສານອ້າງອີງຫຼັກ ອັບໂຫລດເອກະສານອ້າງອີງຂອງທ່ານ | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ | ຜູ້ຮ່ວມມື

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)

ສະຖານະພາບບັນຊີແດງຂອງ IUCN (Ref. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 05 September 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ໄພຂົ່ມຂູ່ຕໍ່ມະນຸດ

  Harmless





ການນໍາໃຊ້ຂອງມະນຸດ

ການປະມົງ: ເປັນສີນຄ້າ; ການລ້ຽງສັດນ້ຳ: ເປັນສີນຄ້າ; ຊະນິດປາທີ່ຖືກນຳໃຊ້ເຂົ້າໃນການຫາເພື່ອເປັນເກມກິລາ: ແມ່ນ
FAO - ການປະມົງ: ການລົງຈອດ; Publication: search | FishSource |

ຂໍ້ມູນຕື່ມອີກ

ນິເວດວິທະຍາເຂດຮ້ອນ
ລາຍການອາຫານ (ຜູ້ຖືກລ້າ)
ອົງປະກອບຂອງອາຫານ
ການບໍລິໂພກອາຫານ
ຄາບອາຫານ
ຜູ້ລ້າ
ນິເວດວິທະຍາ
ນິເວດວິທະຍາ
ວົງຈອນຊີວິດ
ການສືບພັນ
ການຈະເລີນເຕັມໄວ
ການເຕີບໃຫຍ່ / Gills rel.
ຄວາມດົກຂອງໄຂ່ປາ
ການວາງໄຂ່
ການລວບລວມການວາງໄຂ່
ໄຂ່
ການພັດທະນາໄຂ່
ຕົວອ່ອນ
ການປ່ຽນແປງຂອງຕົວອ່ອນ
ຮ່າງກາຍ
ເນື້ອທີ່ເຫືອກ
ສະໝອງ
ໂອໂຕລິດ
ຟີຊິກສາດ
ອົງປະກອບຂອງຮ່າງກາຍ
ທາດອາຫານ
ການບໍລິໂພກອົກຊີເຈນ
ປະເພດລອຍ
ຄວາມໄວໃນການລອຍ
ເມັດສີທີ່ເບິ່ງເຫັນ
ສຽງປາ
ພະຍາດ & ກາຝາກ
ຄວາມເປັນພິດ (LC50s)
ກຳມະພັນ
ພັນທຸ ກຳ
ກຳມະພັນ
Heterozygosity
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ
ຄວາມຫຼາກຫຼາຍທາງພັນທຸກໍາ
ມະນຸດທີ່ກ່ຽວຂ້ອງ
ລະບົບການລ້ຽງປາ
ຂໍ້ມູນການລ້ຽງສັດນ້ຳ
ສາຍພັນ
ກໍລະນີ Ciguatera
ສະແຕມ, ຫຼຽນ, ອື່ນໆ.
ເຜີຍແຜ່
ຜູ້ຮ່ວມມື
ເອກະສານອ້າງອີງ
ເອກະສານອ້າງອີງ

ເຄື່ອງມື

ບົດລາຍງານພິເສດ

ດາວໂຫລດ XML

ແຫຼ່ງອີນເຕີເນັດ

ການຄາດຄະເນໂດຍອີງໃສ່ແບບຈໍາລອງ

ດັດຊະນີຄວາມຫຼາກຫຼາຍທາງຊີວະພາບ (ເອກະສານອ້າງອີງ 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).
ຊັ້ນເຂດຮ້ອນ (ເອກະສານອ້າງອີງ 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.
ຄວາມຢືດຢຸ່ນ (ເອກະສານອ້າງອີງ 120179):  ຕຳ່, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 4.5 - 14 ປີ (K=0.05-0.12; tm=5-20; tmax=50; Fec=5,000).
ຄວາມສ່ຽງຕໍ່ການຫາປາ (Ref. 59153):  High vulnerability (65 of 100). 🛈
ປະເພດລາຄາ (Ref. 80766):   Very high.
ທາດອາຫານ (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.