Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
To avoid unfavorable seasonal conditions, some species of calanoid copepods produce resting eggs that do not immediately hatch. When buried in the sediment, these eggs can remain viable from weeks to years, and therefore can represent a potentially important source of recruits to the pelagic population over various time scales. Copepod resting eggs tend to behave similarly to other fine particles in the water column and will accumulate in areas of high deposition and low resuspension. Seagrass beds are known to be environments that promote the accumulation of fine sestonic particles by inhibiting resuspension but have not been previously investigated as possible reservoirs for copepod resting eggs. Three years of field sampling on a shallow reef in the northern Gulf of Mexico has revealed that viable resting eggs of the copepod Acartia tonsa are significantly more abundant in seagrass-colonized sediment than in adjacent unvegetated sediment, even during times of the year when the seagrass canopy is low. Enhanced egg accumulation in seagrass sediment appears to be the result of unique biological, physical, and chemical characteristics within that environment. Seagrass beds may therefore be important accumulation sites for resting copepod eggs in shallow areas subjected to frequent disturbance, and seagrass loss could have significant impacts on local populations reliant on recruitment from resting eggs.
A Dissertation submitted to the Department of Oceanography in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
Includes bibliographical references.
Nancy Marcus, Professor Directing Dissertation; Susan Blessing, Outside Committee Member; Markus Huettel, Committee Member; David Thistle, Committee Member.
Florida State University
Use and Reproduction
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). The copyright in theses and dissertations completed at Florida State University is held by the students who author them.