Untitled

Ololade, Isaac Ayodele; Lajide, Labunmi; Oladoja, N.A.; Olumekun, Victor O.; Adeyemid, Olalekan O.

doi:10.4194/1303-2712-v11_3_16

Cited by 1 publication

(2 citation statements)

References 25 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Periwinkle snails are critical components of coastal ecosystem habitats, and while much work has been conducted on their ecological roles, little to no work has examined movement following an oil spill. Periwinkles are a highly tolerant family, existing worldwide, and are able to withstand conditions of low oxygen and temperature, as well as tissue concentrations of PAHs into the ppm range . This work tested the hypothesis that oil impedes the movement of snails from disturbed horizontal vegetation into standing unoiled vertical vegetation.…”

Section: Discussionmentioning

confidence: 99%

“…Due to direct contact and interactions with the benthic community of salt marshes, a related species, the common periwinkle snail ( Littorina littorea ), has been termed a sentinel species for evaluating the sublethal effects of persistent contaminants, including polycyclic aromatic hydrocarbons (PAHs) . PAHs are common toxic components of petroleum products, including crude oil, as well as products of incomplete combustion of organic material and fossil fuels. − Potential sources of PAH contamination in marsh habitats include runoff of vehicle exhaust from highways and parking lots, recreational boating, atmospheric deposition, creosote oil leachates from historical industrial sites, and fuel/oil spills. − A decline in snail populations, due to mortality, has been documented in marsh periwinkles following a simulated fuel oil spill, with subsequent recolonization by juveniles …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Deepwater Horizon Oil on the Movement and Survival of Marsh Periwinkle Snails (Littoraria irrorata)

Garner

Hart

Sweet

et al. 2017

Environ. Sci. Technol.

View full text Add to dashboard Cite

The Deepwater Horizon (DWH) oil spill resulted in the release of millions of barrels of oil into the Gulf of Mexico, and some marsh shorelines experienced heavy oiling including vegetation laid over under the weight of oil. Periwinkle snails (Littoraria irrorata) are a critical component of these impacted habitats, and population declines following oil spills, including DWH, have been documented. This study determined the effects of oil on marsh periwinkle movement and survivorship following exposure to oil. Snails were placed in chambers containing either unoiled or oiled laid over vegetation to represent a heavily impacted marsh habitat, with unoiled vertical structure at one end. In the first movement assay, snail movement to standing unoiled vegetation was significantly lower in oiled chambers (oil thickness ≈ 1 cm) compared to unoiled chambers, as the majority (∼75%) of snails in oiled habitats never reached standing unoiled vegetation after 72 h. In a second movement assay, there was no snail movement standing unoiled structure in chambers with oil thicknesses of 0.1 and 0.5 cm, while 73% of snails moved in unoiled chambers after 4h. A toxicity assay was then conducted by exposing snails to oil coated Spartina stems in chambers for periods up to 72 h, and mortality was monitored for 7 days post exposure. Snail survival decreased with increasing exposure time, and significant mortality (∼35%) was observed following an oil exposure of less than 24 h. Here, we have shown that oil impeded snail movement to clean habitat over a short distance and resulted in oil-exposure times that decreased survival. Taken together, along with declines documented by others in field surveys, these results suggest that marsh periwinkle snails may have been adversely affected following exposure to DWH oil.

show abstract

Section: Discussionmentioning

confidence: 99%