Complex sentence: Fishing pressure is insignificant across large portions of the sparsely-spotted stingaree's range, such as in the Great Australian Bight, though substantial numbers are caught incidentally by commercial fisheries off southeastern and southwestern Australia in beach seines and bottom trawls.
Split into simpler sentences: Fishing pressure is insignificant across large portions of the sparsely-spotted stingaree's range, such as in the Great Australian Bight. Substantial numbers are caught incidentally by commercial fisheries off southeastern and southwestern Australia, using beach seines and bottom trawls.