156 NOAA Technical Report NMFS 140 



* — \ — ' /\ ^ K * — 7 V 



NEW \ N£w / \ \ 



JERSEY WORK/ *> \ NEW / 



"E ■■ 

 / 



EXPLANATION 



□ 1-49 

 50-99 

 100-618 



INDIVIDUALS 

 PER SQUARE METER 



\ NEW .- \ \ 



EXPLANATION 



□ <0. 1-0.9 

 M 1.0-3.7 



GRAMS 

 PER SQUARE METER 



CUMACEA 



Figure 154 

 Geographic distribution of Cumacea: A — number of specimens per square meter of 

 bottom; B — biomass in grams per square meter of bottom. 



cobbles, gravels, and coarse sands; the central part of 

 Georges Bank is largely made up of coarse shifting 

 sands; and Nantucket, Vineyard, and Long Island Sounds 

 contain large expanses of very' fine muds and silts. Musi 

 of these areas were devoid of cumaceans (Fig. 154 ) . 



Average densities ranged from 1 to 618 individuals/ 

 m . The majority of the region contained moderate 



densities (1-49/m ) with medium size patches of inter- 

 mediate (50— 99/m 2 ) density at continental shelf depths, 

 and high (100-618/irr) density along the southern 

 edge of Georges Bank and along the coasts of Maine. 

 Massachusetts, and Rhode Island. 



Average biomass was low (<0. 1-0.9 g/m 2 ) over most 

 of their range with only small patches of moderately 



