2032 



Winslow, Ron. 1978. 



Bay closures stir quahoggers. Upstream, Save the Bay, Inc. Dept. Envir. 

 Mgmt. 2(1): 1-3. 



Since January 1978 there have been 12 closures of upper Narragansett Bay to 

 shellf ishing. Closures totaled 99 days. The only alternatives to closing: 

 transplanting clams, depuration of clams, or cleaning the Bay. Cleaning 

 the Bay would give us 100% recovery, depuration 100%, and transplanting 40%. 



- J.L.M. 



2033 



Winter, Jurgen E. 1977. 



Suspension-feeding in lamellibranchiate bivalves, with particular reference 

 to aquaculture. Medio Ambiente 3(1): 48-69. 



Refers to the work of Coughlan and Ansell (1964) in which at temp 18-20°C 

 the general allometric equation for Mercenaria mercenaria was F=2.595 w -'^ 

 at dry tissue' weights ranging from 0.360 to 4.810. Also refers to the work 

 of Tenore and Dunstan (1973) in which assimilation efficiency was 74.7 at 

 19 to 21°C in M. mercenaria with dry tissue weight 0.84 g. This review 

 paper says that the relationships between body size and filtration rate, 

 ration ingested, oxygen consumption, ration assimilated, rate of excretion, 

 and maintenance ration follow the general allometric equation. This makes 

 possible useful predictions for culture of economically important species. 



- J.L.M. 



2034 



Winter, Jurgen E. 1978. 



A review on the knowledge of suspension-feeding in lamellibranchiate 

 bivalves, with special reference to artificial aquaculture systems. 

 Aquaculture 13: 1-33. 



The principles of the mechanism of filter-feeding in suspension feeding 

 bivalves are described, with particular reference to food selection, 

 particle retention efficiency, formation of pseudofaeces, and food con- 

 centration. Papers on Mercenaria mercenaria by Coughlan and Ansell (1964) , 

 and Tenore and Dunstan (1973) are abstracted elsewhere in this bibliography. 



- J.L.M. 



2035 



Wise, John P. (ed.) . 1974. 



The United States Marine Fishery Resource. U.S. Dept. Commerce, NOAA, NMFS , 

 MARMAP Contrib. 1 (for review purposes only). 29B. Clams other than surf 

 clams: 327-333. 



Recent landings of hard clam have been about 135 million pounds, live weight, 

 per year, worth $12 million. Hard clam ranges from Canada to Mexico, but most 

 production is from middle Atlantic states. Discussion of biology, exploit- 

 ation and management, and status of stocks, is too general and brief to 

 provide much specific information Clam stocks would appear to be partic- 

 ularly susceptible to effective management for maximum sustainable yield, and 

 yields could be increased. Adequate statistics on harvesting effort are 

 needed. - J.L.M. 



564 



