TitleCompensatory partitioning of physiological resource budgets by the grass shrimp (Palaemonetes pugio) in association with contaminants encountered in a marsh creek system
NameStout, Joseph (author), Taghon, Gary (chair), Weis, Judith (internal member), John Alder, Henry (internal member), Draxler, Andrew (outside member), Rutgers University, Graduate School - New Brunswick,
SubjectEcology and Evolution,
Shrimps--Effect of water pollution on
DescriptionResource budgets of the grass shrimp (Palaemonetes pugio) were examined for the effects of a highly contaminated field site. Physiological metrics of resource allocation were compared to those of shrimp from a more pristine location. Oxygen, carbon, nitrogen and energy use were compared in shrimp caught from the two sites. The physiological budgets for carbon, nitrogen and energy were examined for evidence of the compensatory partitioning of resources that would allow shrimp from the polluted field site to maintain allocation to growth and reproduction despite contact with a wide variety of contaminants. All components of the budget were measured directly instead of the traditional indirect estimates of production and reproduction. Evidence for compensatory partitioning of resources by grass shrimp at the contaminated field site was found. Ovigerous shrimp from the contaminated site increased reproductive allocation relative to ovigerous shrimp from the clean reference site. Ovigerous shrimp from the two sites had similar rates of resource acquisition through consumption, but ovigerous shrimp from the contaminated site at Piles Creek had lowed allocation to respiration and ammonia excretion. This allowed them to allocate surplus resources to reproduction. Intermolt shrimp from Piles Creek conversely had reduced consumption and increased respiration in comparison to intermolt shrimp from the clean reference site near Tuckerton. Despite reduced resource acquisition through consumption and increased respiratory costs, these shrimp were able to maintain growth rates similar to those of intermolt shrimp from Tuckerton.
NoteIncludes bibliographical references (165-180)
Noteby Joseph Stout
CollectionGraduate School - New Brunswick Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.