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Donald C. Greenland

Publications and source records attributed to Donald C. Greenland.

16 recordsLinked to original sources
USGS1988

Effects of cage encrustation by the bryozoan Plumatella casmiana on production of channel catfish

Fouling by the bryozoan Plumatella casmiana was observed on cages in which channel catfish ( Ictalurus punctatus ) were being reared for a strain evaluation study at the Fish Farming Experimental Station, Stuttgart, Arkansas. Channel catfish growth was inversely correlated with encrustation. The extent of the encrustation was inversely related to pond water depth and to the distance of the cage from the pond water supply inlet. Fish growth was reduced in the cages most heavily fouled, which were in the shallowest water and nearest the water inflow.

Progressive Fish-Culturist↗
USGS1979

Survival of one- and two-year-old monosex grass carp in small ponds

Limited information has become available on the survival of monosex (female) grass carp (Ctenopharyngodon idella) reared in earthen ponds. Monosex fish produced in 1975 (Stanley 1976) were reared 27 months in earthen ponds at the Fish Farming Experimental Station, Stuttgart, Arkansas. Periodic transfers of these fish to different ponds afforded the opportunity to obtain survival information. Thomas and Carter (1977) reported first-year survival percentages of 22.9 to 60.2% (average 34%) for fry stocked in six 0.1-ha ponds in June and July 1975 in a test of different stocking densities and pond conditions. Overall, of 31,887 3-mm fry stocked. 10,035 survived to reach the large fingerling stage (80-250 mm) when they were removed from the ponds in April 1976.

Progressive Fish-Culturist↗