And there are ways in which cultivation of fish and shellfish can be undertaken within mangrove areas without the need for conversion of these into ponds. Raft culture and floating cages for instance.
还有不必将红树林地区改造为池塘便可在这些地区进行鱼类和贝类养殖的办法，如筏式养殖和浮式网箱。
2
Aquaculture studies concentrate on the selection. culture. propagation. harvest and marketing of domesticated fish. shellfish and Marine plants. both freshwater and saltwater.