Classification / Names
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Salmoniformes (Salmons) >
Salmonidae (Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335).
Eponymy: Dr Bernhard Wartmann (1739–1815) was a Swiss physician and naturalist. He qualified as a physician at Montpellier and was a town councillor and public health doctor at St Gallen (1789). He described this species (1777) but did not use a Linnaean name. (Ref. 128868), visit book page.
More on author: Bloch.
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
; स्वच्छ जल, अलवण जल पिलाजिक; गैर प्रवासी; गहराई सीमा 0 - ? m (Ref. 13813), usually 0 - 60 m (Ref. 13813). Temperate; 4°C - 15°C (Ref. 47057); 48°N - 47°N, 9°E - 10°E
Europe: Lake Constance (Switzerland, Germany and Austria).
Length at first maturity / आकार / वज़न / Age
Maturity: Lm 32.5, range 30 - 35 cm
Max length : 50.0 cm TL पुल्लिंग / अलिंग; (Ref. 27368)
Lacustrine, pelagic, usually at 0-40 m during summer. Feeds on plankton and insects; preys on juvenile Perca fluviatilis in summer. Spawns at surface over deep water, off-shore. Spawns for the first time at 2-3 years and in first half of December, when temperature falls below 7˚C. Males aggregate at surface and females ready to spawn come from deeper water to join these aggregations. Eggs sink to bottom and hatch in March. Larvae swim to surface and start to feed after 8 days (Ref. 59043). Also Ref. 13813, 47057.
Distinct pairing (Ref. 205).
Kottelat, M., 1997. European freshwater fishes. An heuristic checklist of the freshwater fishes of Europe (exclusive of former USSR), with an introduction for non-systematists and comments on nomenclature and conservation. Biologia, Bratislava, 52/Suppl. 5:1-271. (Ref. 13696)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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इंटरनेट स्रोत
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=0.00457 (0.00194 - 0.01077), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.30 se; based on food items.
Generation time: 7.8 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
लौटाव (Ref.
120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (tm=2-3).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).
