Open AccessPolyculture of the Giant Malaysian Prawn and the Golden Shiner in Southwestern Louisiana 1
Author(s) -
Scott Gregory,
Perry W. Guthrie,
Avault James W.
Publication year - 1988
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.1988.tb00939.x
Subject(s) - polyculture , prawn , biology , monoculture , macrobrachium rosenbergii , fishery , zoology , aquaculture , agronomy , fish <actinopterygii>
Abstract Juvenile prawns ( Macrobrachium rosenbergii ) were stocked at 37,050/ha and golden shiner ( Noremigonus crysoleucas ) fry at 321,100/ha into 16 earthen ponds at Rockefeller Wildlife Refuge, Grand Chenier, Louisiana. Four replicated treatments were tested: fed prawn monoculture, fed shiner monoculture, fed prawn and fed shiner polyculture, and unfed prawn fed shiner polyculture. The study lasted 149 days. There were no significant differences in growth between prawns fed in monoculture and prawns fed in polyculture ( P > 0.05). However, fed prawns grew significantly larger ( P < 0.05) than unfed prawns. Prawn survival in all treatments combined averaged 63%. Survival was significantly higher ( P < 0.05) for fed prawns than for unfed prawns. Prawn yields averaged 533 kg/ha, when all treatments were combined. Yield was significantly higher ( P < 0.05) for prawns grown with shiners and for prawns that received supplemental feed. Growth was significantly higher ( P < 0.05) for shiners grown with fed prawns than for shiners grown with unfed prawns. Shiner survival averaged 33% and was significantly higher ( P < 0.05) in monoculture than in polyculture. Yield for all ponds averaged 392 kg/ha, with no significant differences between treatments ( P > 0.05).