Ecology of Buzzards Bay Ecology of Buzzards Bay : an estuarine profile ecologyofbuzzard00howe Year: 1996 - o k3 Fiber blanket Water ^finfPniraqiM Fig. Alterations in benthic communities and relation to sediment oxidation/reduction state under varying levels of (a) physical disturbance, or (b) nutrient and organic matter pollution. From Rhoads and Germano (1982). sediments, whereas areas of finer grained, silty sedi- ments are dominated by the nematode Terschellingia spp. and kinorhynchs such as Trachydemus spp. Observations of the distribu- tion of these dominant metazoans are compara
Ecology of Buzzards Bay Ecology of Buzzards Bay : an estuarine profile ecologyofbuzzard00howe Year: 1996 - o k3 Fiber blanket Water ^finfPniraqiM Fig. Alterations in benthic communities and relation to sediment oxidation/reduction state under varying levels of (a) physical disturbance, or (b) nutrient and organic matter pollution. From Rhoads and Germano (1982). sediments, whereas areas of finer grained, silty sedi- ments are dominated by the nematode Terschellingia spp. and kinorhynchs such as Trachydemus spp. Observations of the distribu- tion of these dominant metazoans are comparable to Sanders' (1958,1960) sand and silt distinctions for macro fauna, with combinations of spe- cies determined by the relative amounts of sand versus fine deposits present. Shellfish. Shellfish are benthic animals and in most cases infauna; however, because they sup- port commercial and recreational fisheries, they have special conditions regulating their population densi- ties. Shellfish are relatively fast growing and easy to harvest. Buzzards Bay, with its many protected harbors and embayments, provides numerous suitable habitats for hard-and soft-shelled clams, oysters, and scallops. Shellfish are also important in coastal food chains with large numbers of eggs and larvae entering the plankton during spring and summer months providing a food source for juve- nile fish and crustaceans. Suitable habitat is impor- tant to the production of shellfish in that the young of various species require specific types of substrates or sediment grain sizes upon which to settle or bur- row. Various shellfish species have specific salinity and temperature ranges for reproduction and growth. Water circulation also plays a role in main- taining temperature and oxygen conditions as well as in transporting planktonic food, since all of the harvested bivalve species are filter feeders. Hard- shell clams or quahogs, soft-shell clams, scallops,
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