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Marine Biology Commons

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Full-Text Articles in Marine Biology

Temporal And Spatial Trends Of Dead Copepods In The Northern Gulf Of Mexico In Relation To The Deepwater Horizon Oil Spill, Jessica L. Tolan May 2020

Temporal And Spatial Trends Of Dead Copepods In The Northern Gulf Of Mexico In Relation To The Deepwater Horizon Oil Spill, Jessica L. Tolan

LSU Master's Theses

Zooplankton are a critical link between primary producers and higher trophic levels in the marine environment. They play a critical role in carbon cycling, are an important food source for commercially important species, and are excellent indicator genera for environmental changes that take place in marine ecosystems. This research quantified temporal and spatial patterns of dead copepods in response to the Deepwater Horizon Oil Spill (DWH) site using ZooSCAN imaging technologies. Research showed that the proportion of dead copepods (showed evidence of decay but no physical damage due to predation) increased with depth, and at time periods closest to the …


Natural Variation And Evolutionary Responses To Climate Change Stressors In Marine Invertebrates, Joanna Sarah Griffiths Mar 2020

Natural Variation And Evolutionary Responses To Climate Change Stressors In Marine Invertebrates, Joanna Sarah Griffiths

LSU Doctoral Dissertations

Our rapidly changing climate is putting many species at risk of extinction and there is an urgent need to understand how species will respond to these changes. In this dissertation, I evaluate how three species of marine invertebrates (corals, oysters, and copepods) respond to stressful conditions in their current environments and how plasticity and evolutionary adaptation could alter their response to future climate change stressors. I first employed a space for time study to elucidate population differences in the response of cold-water corals, Balanophyllia elegans, to future ocean acidification. I found evidence that upwelling history (natural low pH exposure) influences …