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Full-Text Articles in Life Sciences
Atlantic Surfclam (Spisula Solidissima) Population Demographics And Distribution Along The Middle Atlantic Bight, Mauricio González Díaz
Atlantic Surfclam (Spisula Solidissima) Population Demographics And Distribution Along The Middle Atlantic Bight, Mauricio González Díaz
OES Theses and Dissertations
The Atlantic surfclam (Spisula solidissima) is a long-lived benthic biomass dominant organism that occurs on the Middle Atlantic Bight (MAB) continental shelf between 10 m and 50 m. Trends in Atlantic surfclam population specific growth and mortality rates were analyzed using four decades of age and length observations obtained from NOAA stock surveys from the 1980s to 2010s in six regions distributed along the MAB. Atlantic surfclam specific growth rates and asymptotic lengths were estimated from the age and length observations using the von Bertalanffy growth model. The analysis showed that the Atlantic surfclam median asymptotic length in …
Modeling Life History And Population Dynamics Of American Lobster And Atlantic Sea Scallops In A Warming Gulf Of Maine, Cameron T. Hodgdon
Modeling Life History And Population Dynamics Of American Lobster And Atlantic Sea Scallops In A Warming Gulf Of Maine, Cameron T. Hodgdon
Electronic Theses and Dissertations
Climate change is impacting many marine species distributions, life histories, and behaviors, as well as their associated fisheries and overall production. This is perhaps especially true for the Gulf of Maine (GOM). Here, warming rates are exceeding a vast majority of the world’s oceans. This highly dynamic system supports myriad species, but is both economically recognized and culturally known for its Atlantic sea scallop (Placopecten magellanicus) and American lobster (Homarus americanus) fisheries. This dissertation examines the influence of regional climate change on these species in an effort to predict how these stocks and their fisheries may …
The Effects Of Increasing Ocean Temperatures On The Survivorship Of A Subtropical Population Of The Sea Urchin Arbacia Punctulata, Rhianna Clemons
The Effects Of Increasing Ocean Temperatures On The Survivorship Of A Subtropical Population Of The Sea Urchin Arbacia Punctulata, Rhianna Clemons
Undergraduate Theses
Most sea urchin species have critical ecological roles in their ecosystems, such as keystone grazers. There is an increasing need to understand the impacts of rising temperatures on species that are vital to the health of their environments. Studies have shown that increasing temperatures may significantly negatively affect several important biological processes including reproduction, development, and excretion in many species including sea urchins. However, very little is known about the sea urchin species Arbacia punctulata. In this study, individuals were exposed to 21˚C (control, n = 12) and 27˚C (experimental, n = 12) for seven days, and survivorship was …