Table 5 (continued). Temporal distribution and relative abundance 



Estuary / Month 



North Atlantic Estuaries 



Great Bay 



Merrimack River 



Massachusetts 

 Bay 



Species / Life Stage 



JFMAMJJASOND 



JFMAMJJASOND 



JFMAMJJASOND 



Blue mussel 



Mytiius 

 edulis 



Sea scallop 



Placopecten 

 magellanicus 



American oyster 



Crassostrea 

 virginica 



Northern quahog 



Mercenaria 

 mercenaria 



Softshell clam 



Mya 

 arenaria 



■MEMM- 



Daggerblade 

 grass shrimp 



Palaemonetes 

 pugio 



JFMAMJJASOND 



JFMAMJJASOND 



JFMAMJJASOND 



Great Bay 



Merrimack River 



Massachusetts 

 Bay 



North Atlantic Estuaries 



Relative Abundance 



HH Highly Abundant 



>""""""■ ! Abundant 



I I Common 



Rare 



Blank Not Present 



Life Stage 



A - Adults 



S - Spawning adults 



J - Juveniles 



L - Larvae 



E - Eggs 



56 



