8) Loss of biogenic reef
habitat, such as oyster and mussel beds, because of disease, overharvesting, other factors in this listing or unknown factors (Rothschild et al.
That the physical structure of a biogenic reef
habitat controls the local flow environment, and that flow is the dominant factor influencing the performance of oysters is not surprising.
Eastern oysters, Crassostrea virginica, created biogenic reef
habitat in estuarine and coastal ecosystems that was sustained by sequential recruitment, growth, and mortality (Mann et al.
ABSTRACT Oyster reefs support a valuable commercial fishery based on the extraction of oysters from the biogenic reef
matrix they form.
virginica are ecosystem engineers, creating biogenic reefs
capable of supporting diverse populations of fauna (Breitburg 1999, Tolley & Volety 2005, Stunz et al.
Changes in populations of oysters and in the biogenic reefs
that these ecosystem engineers create are predicted to have effects on surrounding community structure and ecosystem processes.
The study was mainly concerned with sea bed habitats such as sub-tidal sandbanks, invertebraterich sediments, biogenic reefs
and those containing sea sponges, pink sea fans, and varieties of shellfish.
Suggestions for marine planning policies for consideration during development of the Clyde Regional Marine Plan relevant to pelagic and demersal fish, shallow and shelf subtidal sediments and biogenic reefs
are also welcome outcomes of the contract.
constructed by the Eastern oyster, Crassostrea virginica, provide complex, three-dimensional structural habitats in soft-sediment marine systems analogous to those provided by coral reefs (e.
that provide important ecosystem services such as habitat for other organisms include not only tropical coral reefs but also temperate reefs constructed by oysters (Bahr and Lanier, 1981; Lenihan et al.
ABSTRACT Increases in the frequency and duration of hypoxia and the loss of biogenic reefs
are two of the most prominent environmental insults to estuaries.
1994) capable of creating extensive biogenic reefs