2 resultados para sub-Laplaciano gruppi di tipo H unique continuation principio di indeterminazione
em Aquatic Commons
Resumo:
The preliminary study of water quality assessment for developing aquaculture effort was done in Sampoinit sub district for one week (1-8 December 2007). The objective of the present study is to evaluate the suitability of sites for developing of aquaculture. The explorative survey method was used in this study by determine of several sampling points at identified sites. The survey was covered four villages i.e. Meunasah Kulam, Crak Mong, Krueng No dan Pulo Raya. The results show that Meunasah Kulam, Crak Mong, Krueng No dan Pulo Raya were suitable for brackish water aquaculture of Scylla serrata, Mugil sp, Tilapia mossambica), Tilapia nilotica and Channos channos, while Crak Mong was suitable for freshwater aquaculture of Clarias batrachus and Channa striata. A semi intensive of aquaculture was suitable to be developed.
Resumo:
Bush park fishing / padal fishing is an indigenous fishing method widely employed in the Ashtamudi estuary of Kerala (south India). An artificial reef made from twigs and leaves of trees is planted in the shallow areas of the estuary. The aim is to harvest fish that find shelter in these structures for the purpose of feeding and breeding. Though the State Department of Fisheries has banned this method of fishing in the inland waters of Kerala, 400 padals are operating in this estuary. About 300 of them are anchored in the western parts of the estuary (west Kayal). Fish are harvested in the padals at monthly intervals almost round the year and this results in the destruction of a sizeable quantity of juveniles and sub-adults of the commercially important fishes, such as Pearl spot and mullets, from the estuary. These padals pose a major threat to the sustainability of the fishery resources of this estuary and, therefore, need to be phased out by providing alternative occupations for the fishermen who are dependant on the padals.
