Open AccessSOME ASPECTS OF THE CONTROLLED PRODUCTION OF THE BAY SCALLOP ( Argopecten irradians )
Author(s) -
Rhodes Edwin W.,
Widman James C.
Publication year - 1980
Publication title -
proceedings of the world mariculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0748-3260
DOI - 10.1111/j.1749-7345.1980.tb00118.x
Subject(s) - scallop , raceway , argopecten irradians , fishery , hatchery , bay , limiting , phytoplankton , biomass (ecology) , seawater , biology , oceanography , environmental science , ecology , fish <actinopterygii> , materials science , geology , nutrient , mechanical engineering , engineering , composite material , lubrication
Methods for the intermediate and final grow‐out of hatchery‐reared bay scallops are presented. Hatchery seed 5 mm in length can be efficiently grown to 20 mm in less than 2 months in a pumped raceway system at ambient temperature and phytoplankton levels between June and October. The maximum carrying capacity of the raceways at a seawater flow of 50 liters/min is about 5 liters of scallop biomass. At 10 liters of scallops per raceway phytoplankton availability is limiting. Growth is not affected by scallop densities as high as 1.8 liters/ m 2 . Raceway depth does not influence growth. Suspending small scallops in a net in the raceway does not improve growth. Seed scallops stocked at various densities in lantern nets deployed in Long Island Sound grow rapidly. Densities up to 1000/ m2 seem feasible and this grow‐out method may prove to be cost‐effective.