Salvelinus thingvallensis (Saemundsson, 1908)
分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
条鰭類 > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Salvelinus: Old name for char; it is the same root of german "saibling" = little salmon (Ref. 45335).
Etymology: Salvelinus: Old name for char; it is the same root of german "saibling" = little salmon (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range 生態学
; 新鮮な水 底生の漂泳性; 深さの範囲 0 - 10 m (Ref. 59043). Polar; 65°N - 64°N, 22°W - 20°W
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Europe: Lake Thingvalla, Iceland.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 24.0 cm SL オス/雌雄の選別がない; (Ref. 59043); 最大記録サイズ: 17 年 (Ref. 59043)
Max length : 24.0 cm SL オス/雌雄の選別がない; (Ref. 59043); 最大記録サイズ: 17 年 (Ref. 59043)
簡単な記述 形態学 | 形態計測学
Distinguished from congeners in Iceland by the following characters: presence of parr marks in adults; flank dark brown with irregular golden or yellow spots, belly beige to yellowish, usually blackish markings on throat (not much difference between breeding and non-breeding coloration); pectoral fins black, other fins beige, caudal and dorsal fins with pale spots; snout blunt, rounded, about equal to eye diameter; mouth subinferior, upper jaw projecting (Ref. 59043).
Inhabits shallow littoral zone, with water 0-10 m deep. A nocturnal species which hides between stones during the day. Feeds predominantly on snails, and to a lesser extend on benthic insects (Ref. 59043).
Life cycle and mating behavior 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
主な参考文献
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Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
人間に対する脅威
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref. 82805): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00473 - 0.02021), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278): 3.7 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
弱み (Ref. 59153): Moderate vulnerability (40 of 100) .