IV-D-6 



Loesch, H. 1971. Some observations on amounts of nannoplankton, nematodes, 



copepods, fish, and shrimp found in the Barataria Bay Area, Louisiana. 



Louisiana State University, Coastal Studies Bulletin No. 6, Special Sea 



Grant Issue, pp. 38-44. 



Seasonal biomass estimates were made of nannoplankton, nematodes, 

 copepods, shrimp, and fish in the Barataria Bay area by using quanti- 

 tative and non-quantitative data assembled by various investigators. 

 Some assumptions were necessary in estimating the biomass of each group 

 of animals per unit area for seasonal or monthly periods. All measure- 

 ments are reported in grams per square meter of either bottom area or 

 water column. (A. A.) 



Keywords: nannoplankton, nematodes, copepods, fish, shrimp, Louisiana 



IV-D-7 



Mulkana, M.S. 1966. The growth and feeding habits of juvenile fishes 

 in two Rhode Island estuaries. Gulf Research Reports 2:97-168. 



The purpose of this work was to evaluate selected Rhode Island 

 estuaries as nursery grounds for juvenile fishes. The juvenile stage 

 in the life history of fishes follows the emergence from larval life 

 to an independent young phase. At this stage survival becomes dependent 

 on physiological and morphological fitness, availability of suitable 

 types of food, and protective adaptations to minimize predator and 

 parasite invasion and overpopulation pressure. The immature young 

 of coastal and offshore fishes of many species spend their critical 

 juvenile period in protected, food-rich estuaries. Often the success 

 of stocks in a fishery is dependent on the presence of areas suitable 

 as nursery. 



Greely, Warfel and Merriman, and Pearcy and Rickards, who studied 

 the seasonal variations and ecology of juvenile and adult fishes 

 along the New England coast, and Shuster who conducted similar investigation: 

 in Delaware Bay estuaries, all reported a great abundance of fish-of- 

 the-year of various species in the shallow waters of coastal ponds, 

 estuaries, and bays. Fish's observations in Rhode Island waters point 

 to the same conclusions. Information from all of these sources provides 

 strong evidence that estuarine environments play a vital role in the 

 survival and maintenance of stocks of the coastal and offshore fisheries 

 of commercial significance. (Author's introduction, modified) 



Keywords: fish, estuaries, nursery grounds, Rhode Island 



165 



