Open AccessSTANDING CROPS OF NATURAL FISH POPULATIONS IN BRACKISH‐WATER OIL FIELD PIPELINE CANALS 1
Author(s) -
Kilgen Ronald H.,
Harris Alva H.,
Kraemer Danny
Publication year - 1973
Publication title -
proceedings of the annual workshop ‐ world mariculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 1043-5166
DOI - 10.1111/j.1749-7345.1973.tb00096.x
Subject(s) - fishery , brackish water , catfish , mariculture , estuary , salinity , bass (fish) , oyster , biology , aquaculture , environmental science , hydrology (agriculture) , geography , fish <actinopterygii> , ecology , geology , geotechnical engineering
Brackish‐water oil field pipeline canals located in coastal Louisiana were rotenoned so that mariculture studies could be conducted. Standing crops within the canals ranged from 133 to 369 kg per ha, with an average minimum wholesale value of $38.80 per ha. Centrarchids and channel catfish were found in lower salinity canals (5.5 to 8.5 ppt), but not in a higher salinity canal (25 ppt). Sea catfish, oyster toadfish, and gray snapper were found only in the latter. The canals contained from 15 to 28 different fish species, with clupeids, sparids, and sciaenids predominating. Standing crops within pipeline canals are apparently higher than in surrounding areas, but potential brood stock may never reproduce because they are trapped within the canals.