Variable production of young striped bass Morone saxatilis in the estuarine transition region depends on environmental and hydrographic conditions in the estuarine turbidity maximum (ETM) and salt front region of Chesapeake Bay. Spatio-temporal variability in occurrence, growth, and diet of early life stages of striped bass and zooplankton prey were compared in years of average (2007) and poor (2008) production of striped bass juveniles. Stable isotope analyses tracked sources of carbon and nitrogen in larval striped bass diets. The estuarine copepod Eurytemora affinis was the most important prey. It and the freshwater cladoceran Bosmina longirostris dominated diets of striped bass larvae. Bosmina was relatively important in 2007. Larvae grew faster in 2007 than in 2008 and growth was fastest within and up-estuary of the ETM and salt front. Stable isotope analysis indicated that carbon from both marine and terrestrial sources supports production of striped bass larvae.
|Advisor:||Houde, Edward D.|
|Commitee:||North, Elizabeth W., Secor, David H.|
|School:||University of Maryland, College Park|
|School Location:||United States -- Maryland|
|Source:||MAI 50/02M, Masters Abstracts International|
|Subjects:||Biological oceanography, Aquatic sciences|
|Keywords:||Chesapeake Bay, Estuarine turbidity maximum, Recruitment, Salt front, Striped bass|
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