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Galaxiiformes (Southern smelts) >
Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Paragalaxias: Greek, para = the side of + Greek, galaxias, ou = a kind of fish (Ref. 45335).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة القاع. Temperate
Oceania: known only from the Central Plateau of Tasmania, Australia.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 7.5 cm SL ذكر/ مختلط الجنس; (Ref. 44894); common length : 5.5 cm SL ذكر/ مختلط الجنس; (Ref. 5259); العمر: 3.00 سنين (Ref. 44894)
Facultative air-breathing in the genus (Ref. 126274); Live in the margins of lakes and streams, usually in rocky areas or around vegetation and debris. Bottom-dweller in shallows of lakes and inlet streams over rocky substrates. Often sheltering in crevices under rocks, woody debris or among aquatic plants. May also occur in deeper lacustrine waters. A nocturnally active, seldom seen species. Breed in summer (December-January), releasing demersal eggs among rocks at lake margins which hatch in two weeks. Juveniles swim in midwater feeding on plankton, and colonise the bottom after about six months. Sexual maturity is attained at the end of the first year; the maximum life span is probably about three years (Ref. 44894). Feed on insects, small crustaceans, algae and eggs of other galaxiids.
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
أدوات
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00205 - 0.01170), b=3.12 (2.91 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.2 ±0.40 se; based on food items.
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (tm=1; tmax=3; Fec=39).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
