Figure 1. — Chart of Great Harbor, Woods Hole, Mass., showing the approximate trawling course (heavy line 

 at the western side of the harbor) followed in making fish collections. Only area A was trawled in Sep- 

 tember and October 1961; areas A and B were trawled from November 1961 to December 1962. 



figure 2 to provide a more complete temper- 

 ature record. The water in the fishing area 

 was isothermal, or nearly so, from surface 

 to bottom because of vertical mixing l)y tidal 

 currents and wind. 



All fish caught were identified and measured 

 at the NMFS Biological Laboratory, Woods 

 Hole. Total lengths for fish with unforked tails 

 and fork lengths for fish with forked tails were 

 recorded in millimeters. Information on iden- 

 tification, distriljution, and biology of the spe- 

 cies caught was oijtained largely from Sumner, 

 Osborn, and Cole (1913). Nichols and Breder 

 (1927) , Hildebrand and Schroeder (1928), and 



Bigelow and Schroeder (1953). Scientific and 

 common names of fishes used here are those 

 listed by the American Fisheries Society 

 (1960). ' 



The catches probably provided an accurate 

 qualitative estimate of the species and size 

 range of fish present near the bottom. Be- 

 cause heavy growths of attached algae, net 

 damage, and weather conditions frequently 

 limited eff'ectiveness of the trawling, however, 

 the catches provided only approximate esti- 

 mates of a))undance. Forty-one species of fish 

 were recorded, none of which were new to the 

 area. Many additional species are of course 



