Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة القاع. Temperate
Europe: Lough Melvin (21km2) in Ireland.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 33.0 cm SL ذكر/ مختلط الجنس; (Ref. 59043)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
Distinguished from its congeners in British Isles by its unique dark brown or black fins, especially pectorals. Differs further by the combination of the following characters: body light brown to silvery with many large spots; red spots absent or few, small, inconspicuous, restricted to posterior part of body; and body depth about 3.9-4.4 times in SL (Ref. 59043).
A lacustrine and pelagic species, occurring in relatively deep water. Feeds predominantly on mid-water plankton, especially Cladocera, and chironomid pupae. Migrates to tributaries for spawning. Spawns in most lake tributaries. Attains a maximum size of up to about 33 cm SL (Ref. 59043).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCN Red List Status (Ref. 130435: Version 2024-2)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00480 - 0.02286), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
