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Gregory J. Teegarden
Researcher at Saint Joseph's College
Publications - 7
Citations - 513
Gregory J. Teegarden is an academic researcher from Saint Joseph's College. The author has contributed to research in topics: Calanus finmarchicus & Algal bloom. The author has an hindex of 5, co-authored 7 publications receiving 495 citations.
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Journal ArticleDOI
Growth and development rates of the copepod Calanus finmarchicus reared in the laboratory
Robert G. Campbell,Melissa M. Wagner,Gregory J. Teegarden,Carla A. Boudreau,Edward G. Durbin +4 more
TL;DR: It is recommended that secondary production rates of Calanus finmarchicus and possibly other lipid-storing copepods not be estimated from egg production mea- surements alone, as has been suggested for other species of copepod, because growth, including structural growth, is not equivalent for all stages.
Journal ArticleDOI
North Atlantic right whales, Eubalaena glacialis, exposed to paralytic shellfish poisoning (PSP) toxins via a zooplankton vector, Calanus finmarchicus
Edward G. Durbin,Gregory J. Teegarden,Robert G. Campbell,Allan Cembella,Mark F. Baumgartner,Bruce R. Mate +5 more
TL;DR: It is suggested that these toxins could affect respiratory capabilities, feeding behavior, and ultimately the reproductive condition of the whale population.
Journal ArticleDOI
The copepod Calanus finmarchicus: A potential vector for trophic transfer of the marine algal biotoxin, domoic acid
Luis F. Leandro,Luis F. Leandro,Gregory J. Teegarden,Patricia B. Roth,Zhihong Wang,Gregory J. Doucette +5 more
TL;DR: Results of grazing and toxin accumulation/depuration experiments showed that C. finmarchicus consumed DA-producing Pseudo-nitzschia multiseries regardless of the presence or absence of morphologically similar, but non-toxic, P. pungens, providing evidence for the potential of C.finm archicus to facilitate DA trophic transfer in marine food webs where toxic Pseudo -nitzSchia is present.
Journal ArticleDOI
Copepod feeding response to varying Alexandrium spp. cellular toxicity and cell concentration among natural plankton samples
Gregory J. Teegarden,Robert G. Campbell,Dean T. Anson,Aaron Ouellett,Benjamin A. Westman,Edward G. Durbin +5 more
TL;DR: Copepod grazers do not follow predictable feeding rules throughout a continuum of conditions, but become more predictable at extremes of concentration and toxicity of prey, consistent with the conclusion that both factors are important.
Journal ArticleDOI
Zooplankton grazing impacts on Alexandrium spp. in the nearshore environment of the Gulf of Maine
TL;DR: It is suggested that zooplankton grazing can be an important source of mortality for harmful algal bloom species such as Alexandrium spp.