Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

Geographic Distributions and Reproductive Seasonality of Oplophorid and Euphausiid Crustaceans in the Vicinity of the Deepwater Horizon Oil Spill

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Gulf of Mexico Oil Spill & Ecosystem Science Conference, New Orleans, LA, February 6-9, 2017

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This talk will present the first description of the oplophorid (Decapoda: Oplophoridae) and euphausiid (Euphausiacea: Euphausiidae) crustacean assemblages around the site of the Deepwater Horizon Oil Spill (DWHOS). These are two of the most abundant crustacean groups in the Gulf of Mexico (GoM), and are important components of the pelagic food web. The data presented here are from expeditions that were conducted after the oil spill; no pre-spill assessments are available. This talk will present species' vertical distributions/migratory behavior, including the first comprehensive data on euphausiid distributions from depths > 1000m in the GoM, differences between slope (on the landward side of the 1000m isobath) and offshore (on the open ocean side of the 1000m isobath) assemblages, and an assessment of reproductive seasonality. These are the first data from this region, and will be compared, in the future, with DEEPEND data from 2015-2017 to assess possible temporal changes in the assemblages that may be correlated with impacts of, or recovery from, the DWHOS.

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