Home
Resource
An ecological assessment of the non-indigenous isopod, Synidotea laticauda, in Delaware Bay
PDF
PDF format is widely accepted and good for printing.
Plug-in required
PDF-1(453.39 kb)
Citation & Export
View Usage Statistics
Staff View

Citation & Export
Hide

Simple citation

Boyd, Sean G.. An ecological assessment of the non-indigenous isopod, Synidotea laticauda, in Delaware Bay. Retrieved from https://doi.org/doi:10.7282/T3T1541W

Export

Click here for information about Citation Management Tools at Rutgers.

Statistics
Hide

Description

Uniform TitleAn ecological assessment of the non-indigenous isopod, Synidotea laticauda, in Delaware Bay
NameBoyd, Sean G. (author); Bushek, David (chair); Grassle, Judith (internal member); Handel, Steven (internal member); Rutgers University; Graduate School - New Brunswick
Date Created2008
Other Date2008-05 (degree)
SubjectEcology and Evolution, Isopoda, Delaware Bay (Del. and N.J.), Marine ecology, Delaware
Extentviii, 82 pages
DescriptionSynidotea laticauda is a non-indigenous marine isopod that has been documented in Delaware Bay since 1998. Due to its relatively resent arrive there is a general lack of scientific knowledge about the impact this isopod may have on local ecosystems. Extremely high seasonal abundances, documented over the past three years, suggest the potential for a strong impact. A presence-absence survey conducted during the summer of 2006 documented S. laticauda along portions of both the New Jersey and Delaware coasts of Delaware Bay and on several oyster seed beds within the bay. Isopods were only present in portions of the bay containing anthropogenic structures and salinities between 2 and 22. Synidotea laticauda were not observed along the Atlantic coasts of New Jersey or Delaware. Temperature-salinity challenges found that S. laticauda die quickly in fresh water but can survive in salinities of 30 and 35. The temperature-salinity challenges also found that S. laticauda survived in water temperatures typical for Delaware Bay. Although lethargic, isopods experienced very little mortality at 5° C; however, high mortality was experienced above 25° C. Regular monitoring of recently deployed (clean) and continuously deployed (fouled) cages in the Maurice River identified a preference for structures accumulating biological fouling. Several trophic interactions between S. laticauda and the biota of Delaware Bay were also identified in this study. Single-choice feeding trials identified predation on nine fauna and flora species and established S. laticauda as an omnivore capable of exploiting multiple food resources within the bay. Furthermore, gut content analyses of fish collected from the Maurice and Nantuxent Rivers indicate that a minimum of four predatory fish species consume S. laticauda, although it does not appear to be an important component of their diet. Collectively these findings indicate S. laticauda will persist in portions Delaware Bay but with a nominal ecological impact.
NoteM.S.
NoteIncludes bibliographical references (p. 78-82).
Genretheses, ETD graduate
Persistent URLhttps://doi.org/doi:10.7282/T3T1541W
LanguageEnglish
CollectionGraduate School - New Brunswick Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
Version 8.5.5
Rutgers University Libraries - Copyright ©2024