Effective Monitoring to Evaluate Ecological Restoration in the Gulf of Mexico (2017) / Chapter Skim
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Marine Mammal Restoration Monitoring
Marine Mammal Restoration Monitoring
Pages 191-200
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From page 191... ...
Due to the to inform adaptive management by ecological diversity of the marine mammal • enhancing stranding network capaspecies and stocks in the Gulf of Mexico, impacts bilities, of the spill on these stocks are varied, with the • enhancing stock assessments, and most severe injuries documented in stocks with • ensuring restoration activities aimed at ranges overlapping the DWH oil spill footprint enhancing recreational and economic and accessible to study, especially coastal resources, or restoring coastal habitat bottlenose dolphin stocks from Barataria Bay and through sediment and hydrologic Mississippi Sound (Schwacke et al., 2014)
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From page 192... ...
Some o stressors that act sy ynergistically on marine e infecctious disease predispose animals to other es e mammal health. Und derstanding th effects of he f diseaases, and cha anges in prey distribution a and/or restoration activities relative to th continuing n r he g wate temperatur can alter marine ma er re ammal impacts of an oil spill requires caref fully designedd distriibution, and t thus exposure to HABS.
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From page 193... ...
. Restoration activities specifically distribution, and health, as well as the key designed to restore marine mammal populations stressors that impact these factors (e.g., salinity, will be monitored using a combination of prey abundance, shipping activity, noise, HABs, construction and performance monitoring (see direct human actions such as illegal feeding, sport Table II.6)
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From page 194... ...
strikes, and fisheries interactions, their designation as a discrete stock can affect these activities if mortality exceeds permissible Choose Suitable Metrics unintentional human-induced mortality for the stock.2 Abundance Abundance of marine mammal stocks (21 Distribution species and 56 stocks of marine mammals occur within the Gulf of Mexico) is mostly determined Distribution data informs spatial planning through ship-based and aerial surveys, which in tools, such as habitat use mapping, so spatial the Gulf are performed and coordinated by adaptive management approaches can be used NOAA Fisheries Service through the Stock during restoration activities.
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From page 195... ...
This would Health allow data on marine mammal health and abundance to inform managers of effects of Monitoring health of marine mammals restoration activities (positive or negative) on focuses on monitoring representative populations marine mammal populations, and thus guide at index sites for which baseline data exist and future restoration project planning to optimize logistically feasible techniques have been marine mammal restoration (see Table II.6)
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From page 196... ...
Sea state Tidal state Water depth Biotoxin concentration Number of boats illegally feeding animals #1 #1 Fauna Abundance and distribution (counted or estimated) #2 X Photographs of coastal dolphins #2 Species composition Group size Age/size/gender categories Biopsies of coastal dolphins #2 Health assessment of live-capture-released coastal dolphins or manatees #2 #2 X Number of stranded dolphins with fresh water skin lesions #2 #2 Number of injured dolphins, whales, or manatees (photo-IDs)
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From page 197... ...
in Mississippi Sound. northern Gulf of Mexico bottlenose dolphins Aquatic Mammals 30(2)
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From page 198... ...
2012. Impact reveal fine scale geographic structure in of remobilized contaminants in Mytilus edulis bottlenose dolphins (Tursiops truncatus)
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From page 199... ...
Department of 2004. Bottlenose dolphins as ecosystem Commerce, National Oceanic and Atmo- sentinels: Developing a health monitoring spheric Administration, National Marine system.
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