Natural enemies of fish as cause of economic losses in fish ponds
نویسندگان
چکیده
منابع مشابه
Study of the cause of losses of green terror (Andinoacara rivulatus) in an ornamental fish farm in Nazarabad, Alborz Province
Green terror (Andinoacara rivulatus) is one of the most popular ornamental freshwater fish of the Cichlidae, which is very common in our country. The aim of this study was to investigate the cause of green terror losses in an ornamental fish breeding center. In the summer of 1400, following the chronic and continuous losses of mature green terrors in a center for the reproduction and breeding o...
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Ammonia in water is either unionized ammonia (NH3) or the ammonium ion (NH4). The techniques used to measure ammonia provide a value that is the sum of both forms. The value is reported as “total ammonia” or simply “ammonia.” (In this publication, “ammonia” refers to the sum of both forms; the specific forms will be referred to as appropriate.) The relative proportion of the two forms present i...
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An experiment was conducted in nine 200-m2 fertilized earthen ponds at the Asian Institute of Technology, Thailand, from January to September 2000. This experiment was designed to assess the recovery of pond mud nutrient by lotus (Nelumbo nucifera), to assess pond mud characteristics after lotus-fish co-culture, and to compare fish growth with and without lotus integration. There were three tre...
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ژورنال
عنوان ژورنال: Veterinarski glasnik
سال: 2006
ISSN: 0350-2457,2406-0771
DOI: 10.2298/vetgl0606417m