The Long Island Sound population of Crassostrea virginica, the Eastern oyster, has fluctuated historically, but remains an important fishery through aquaculture efforts. During this study oyster trophic resources were examined by several methods to investigate food availability for C. virginica. Seasonal community composition and abundance of phytoplankton were studied along with oyster glycogen during 2009 and 2010 in coastal Connecticut, USA embayments and tidal rivers. Phytoplankton communities, temperature and salinity presented typical seasonal patterns and ranges. Appropriately sized chlorophyll-a-containing particles always were available for oyster consumption. Availability of sufficient food was further supported by the analysis of oyster glycogen, as glycogen is a proxy for nutritional status in oysters. Glycogen measured at the beginning and end of quiescence also indicated minimal consumption of energy during the overwintering period when oysters do not feed appreciably (≤6°C). Although not identical, stations were able to support oysters similarly. While the appropriate trophic resources were available, it is imperative that aquaculture efforts continue to maintain or increase harvests of oysters from Long Island Sound.
|School:||Southern Connecticut State University|
|School Location:||United States -- Connecticut|
|Source:||MAI 54/05M(E), Masters Abstracts International|
|Subjects:||Ecology, Aquatic sciences|
|Keywords:||Crassostrea virginica, Flow Cytometry, Glycogen, Oysters, Phytoplankton, Trophic Resources|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be