PAH Exposure in Gulf of Mexico Demersal Fishes, Post-<i>Deepwater Horizon</i>

Snyder, Susan M.; Pulster, Erin L.; Wetzel, Dana L.; Murawski, Steven A.

doi:10.1021/acs.est.5b01870

Cited by 79 publications

(51 citation statements)

References 78 publications

(152 reference statements)

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“…Four deep‐living snake eels, one of which may be endemic to the Gulf ( Gordiichthys ergodes ), and one cusk‐eel are only known from records taken in the north‐eastern Gulf from localities near the 2010 Deepwater Horizon oil spill. These benthic‐oriented species were listed as DD at the regional level in part because of the potential threat from interaction with contaminated sediment (Snyder, Pulster, Wetzel, & Murawski, ).…”

Section: Discussionmentioning

confidence: 99%

Extinction risk and conservation of marine bony shorefishes of the Greater Caribbean and Gulf of Mexico

Linardich

Ralph

Robertson

et al. 2018

Aquatic Conservation

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Understanding the conservation status of species is important for prioritizing the allocation of resources to redress or reduce biodiversity loss. Regional organizations that manage threats to the marine biodiversity of the Caribbean and Gulf of Mexico seek to delineate conservation priorities. This process can be usefully informed by extinction risk assessments conducted under the International Union for Conservation of Nature (IUCN) Red List criteria: a widely used, objective method to communicate species‐specific conservation needs. Prior to the recent Red List initiatives summarized in this study, the conservation status was known for just one‐quarter of the 1360 Greater Caribbean marine bony shorefishes. During 10 Red List workshops, experts applied data on species' distributions, populations, habitats, and threats in order to assign an extinction risk category to nearly 1000 shorefishes that range in the Greater Caribbean. As conservation is mostly implemented at national and local levels, two more workshops assessed the Gulf of Mexico populations of 940 shorefishes using the regional Red List guidelines. About 5% of these shorefishes are globally or regionally threatened, including 6% of Greater Caribbean endemics and 26% of Gulf endemics. About 9% of the species are Data Deficient. Species‐richness analyses show that the highest numbers of threatened species endemic to the Greater Caribbean are found in Belize, Panama, and the Cayman Islands. The most pervasive threats to the threatened and Near Threatened species are overexploitation, habitat degradation, and predation by the invasive lionfish. Half of the threatened species are experiencing multiple threats that are likely to amplify extinction risk. Recommended actions, in addition to conducting diversity surveys in lesser explored areas, include improving fishery management, reducing habitat degradation, and controlling lionfish populations.

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Section: Discussionmentioning

confidence: 99%

Extinction risk and conservation of marine bony shorefishes of the Greater Caribbean and Gulf of Mexico

Linardich

Ralph

Robertson

et al. 2018

Aquatic Conservation

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show abstract

“…input to the seafloor was episodic over much of the deeper shelf, and low bioavailability associated with muddy sediments likely reduced exposure to levels that would not cause toxicity to most infauna (Cooksey et al, 2014). However, burrowing fishes at the shelf edge, such as tilefish, exhibited relatively high and persistent levels of bile metabolites of PAHs, indicative of oil exposure (Murawski et al, 2014;Snyder et al, 2015), but this effect was species-specific, probably owing to differing physiology and metabolic pathways among them. Hardbottom benthos (including macroalgae, crustaceans, mollusks, and corals) associated with natural and artificial reefs were exposed to oil as it settled to the seafloor, and effects were likely acute, widespread, and persistent because of higher exposures or lower tolerance.…”

mentioning

confidence: 99%

How Did the Deepwater Horizon Oil Spill Affect Coastal and Continental Shelf Ecosystems of the Gulf of Mexico?

Murawski¹,

Fleeger²,

Patterson³

et al. 2016

Oceanog

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“…Demersal fishes were also affected by the oil spill. For example, the burrow-forming golden tilefish were persistent and had among the highest concentrations of naphthalene metabolite levels measured in fishes globally (Snyder et al, 2015).…”

Section: Soft-bottom Community Responsementioning

confidence: 99%