Some Aspects of Reproduction in Long Whiskered Catfish, Sperata aor (Hamilton 1822), from North-East Bangladesh
نویسندگان
چکیده
منابع مشابه
Development of breeding and fingerling production techniques for endangered long-whiskered catfish Sperata aor in captivity
An experiment was undertaken to develop a suitable seed production technique for Sperata aor in captivity. Naturally produced fry of aor was reared at different densities in nine nursery ponds 0.012 ha in size with an average depth of 0.8 m each. Three stocking densities tested, each of which was triplicated. Fry of aor stocked at 100,000/ha was designated as treatment-1 (T1), 150,000/ha as tre...
متن کاملDevelopment of breeding and fingerling production techniques for endangered long-whiskered catfish Sperata aor in captivity
An experiment was undertaken to develop a suitable seed production technique for Sperata aor in captivity. Naturally produced fry of aor was reared at different densities in nine nursery ponds 0.012 ha in size with an average depth of 0.8 m each. Three stocking densities tested, each of which was triplicated. Fry of aor stocked at 100,000/ha was designated as treatment-1 (T1), 150,000/ha as tre...
متن کاملa comparative study of the histoarchitecture of endocrine pancreas in labeo bata (hamilton, 1822), sperata aor (hamilton, 1822) and chitala chitala (hamilton, 1822)
the disposition and cellular organization of the endocrine pancreas were studied in three species of freshwater teleosts viz., labeo bata (hamilton, 1822), sperata aor (hamilton, 1822) and chitala chitala (hamilton, 1822) using histological techniques. in l. bata, the endocrine pancreas tissues were mainly distributed in the adipose tissue among the intestinal coils and adjacent to extrahepatic...
متن کاملOne known and an unknown species of the genus Thaparocleidus Jain, 1952, infecting Sperata aor (Hamilton, 1822): comparison with species from China, on molecular basis
Sperata aor commonly called as long- whiskered cat fish or "Bada Tengan" in local fish markets harboured one new and one previously known species of genus Thaparocleidus Jain, 1952, along with two species of Cornudiscoides Kulkarni, 1969, infesting gills. Thaparocleidus aori (Rizvi, 1971) Lim, 1996, was earlier described by Rizvi therefore was briefly recorded in the present study, except the e...
متن کاملGeneration of viable progeny from dead brooders of endangered catfish Clarias magur (Hamilton, 1822)
The obligatory air-breathing catfish Clarias magur is a prime candidate for aquaculture owing to its unique taste, high growth rate, and hardy nature. However, recently the IUCN has listed the species under the endangered category because the population has critically declined in the wild. The sexually mature C. magur brooders are often collected from their natural habitats for seed production ...
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ژورنال
عنوان ژورنال: Aquaculture Studies
سال: 2021
ISSN: 2618-6381
DOI: 10.4194/2618-6381-v21_2_01