البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
; المياه العذبة قاعية التغذية و المعيشة; pH range: 6.0 - 6.5; dH range: 5 - 10. Temperate; 16°C - 30°C (Ref. 2060); 25°S - 29°S
Oceania: endemic in the coastal drainages of northeast and southeast Australia, from Noosa River to Richmond River (Ref. 5259). Also in dune lakes between the Maroochy and Noosa River systems (Ref. 2906), Queensland to New South Wales, Australia.
الطول عند النضج الأول / الحجم / وزن / العمر
النضج: Lm 2.9, range 2 - 2.99 cm
Max length : 7.5 cm SL ذكر/ مختلط الجنس; (Ref. 7276); common length : 4.0 cm SL ذكر/ مختلط الجنس; (Ref. 44894)
Inhabits ponds, dune lakes and creeks, usually among aquatic weeds (Ref. 6398). Lives in swamps with prolific sedge growth, gently flowing streams and dune lakes in areas of coastal heathland (wallum). Water is often darkly tannin-stained and acidic (pH 5.4-6.5) with temperature range from 12° to 28°C (Ref. 44894). Feeds primarily on aquatic insects and their larvae (Ref. 5259). Also consumes microcrustaceans and algae. Breeding season extends from October to May, when water temperatures rise above 20°C. The breeding habits and biology are similar to other nannopercids, but this species takes only 4-5 months to attain sexual maturity (Ref. 44894). Aquarium conditions: pH=7.2, H=8, 26°C water temperature, egg layer, plant and rock cover, peaceful community fish (Ref. 6398).
During the breading season, N. oxleyana displays sexual dichromatism, with males showing more intense changes (Ref. 74347). Males display a darkening of the dorsal, anal and pelvic fins and red colouration of the body and caudal fin (Ref. 74352). Serial spawner (Ref. 74347).
Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
في خطر (EN) (B2ab(i,ii,iii,iv)); Date assessed: 08 February 2019
استخدامات بشرية
مصائد: غير ذات اهمية; حوض مائي: تجاري
أدوات
تقارير خاصة
تنزيل XML
مصادر علي الأنترنت
تقديرات تستند إلى النماذج
مؤشر التنوع الشُعبي الوراثي (مرجع
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00397 - 0.02763), b=3.01 (2.78 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (مرجع
69278): 3.2 ±0.40 se; based on food items.
المرونه (مرجع
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Fec=225-270).
ضعف الصيد (Ref.
59153): Low vulnerability (10 of 100).
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