محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي; آب شيرين; لب شور نزديك كف زي; دريا كوچ (Ref. 51243). Tropical
Africa: Kenya to South Africa (Ref. 3506), uncommon south of the Save River (Ref. 7248, 52193). Also Reunion and Mauritius (Ref. 33390). Dominant eel species in the Zambezi system and farther north in East Africa (Ref. 52193).
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 175 cm TL جنس نر / بدون خواص جنسي; (Ref. 48660); بيشينه وزن گزارش شده: 20.6 kg (Ref. 52193); بيشينه سن گزارش شده: 15 سال ها (Ref. 48660)
خارهاي باله پشتي (کل) : 0; خارهاي باله مخرجي: 0.
Body shape (shape guide): eel-like; Cross section: circular.
Migratory species which breeds in the ocean (Ref. 52331), it requires rivers and oceans (Ref. 30558). Young fish migrate upstream with a continued feeding mode, especially on invertebrates found on rocks and logs washed by fast moving waters (Ref. 30558). They inhabit various niches in a river system (Ref. 13337) and penetrate far inland, surmounting formidable barriers in its upstream migration, including the Kariba and Cahora Bassa dams (Ref. 52193). Adults need moving water to migrate back to the ocean, especially after heavy rains (Ref. 30558). Their food consists of crabs, frogs and insects (Ref. 30558), and even fish, including trout in the streams of the eastern highlands of Zimbabwe (Ref. 2478, 52193). Caught with various types of nets.
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Semelparous.
Skelton, P.H., 1993. A complete guide to the freshwater fishes of southern Africa. Southern Book Publishers. 388 p. (Ref. 7248)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: تجاري; ماهي ها ي سرگرم كننده: بله
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00074 (0.00040 - 0.00138), b=3.18 (3.02 - 3.34), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
سطح تروفیک (مرجع 69278) |
3.8 ±0.7 se; based on size and trophs of closest relatives |
جهندگی (مرجع 120179) |
پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (tmax=15). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Very high vulnerability (84 of 100). 🛈 |
طبقه قيمت (Ref. 80766) |
Unknown.
|