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Empirical measures of harbor seal behavior and avoidance of an operational tidal turbine

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Empirical measures of harbor seal behavior and avoidance of an operational tidal turbine. / Joy, Ruth; Wood, Jason D.; Sparling, Carol E.; Tollit, Dom J.; Copping, Andrea E.; McConnell, Bernie J.

In: Marine Pollution Bulletin, Vol. 136, 11.2018, p. 92-106.

Research output: Contribution to journalArticle

Harvard

Joy, R, Wood, JD, Sparling, CE, Tollit, DJ, Copping, AE & McConnell, BJ 2018, 'Empirical measures of harbor seal behavior and avoidance of an operational tidal turbine' Marine Pollution Bulletin, vol. 136, pp. 92-106. https://doi.org/10.1016/j.marpolbul.2018.08.052

APA

Joy, R., Wood, J. D., Sparling, C. E., Tollit, D. J., Copping, A. E., & McConnell, B. J. (2018). Empirical measures of harbor seal behavior and avoidance of an operational tidal turbine. Marine Pollution Bulletin, 136, 92-106. https://doi.org/10.1016/j.marpolbul.2018.08.052

Vancouver

Joy R, Wood JD, Sparling CE, Tollit DJ, Copping AE, McConnell BJ. Empirical measures of harbor seal behavior and avoidance of an operational tidal turbine. Marine Pollution Bulletin. 2018 Nov;136:92-106. https://doi.org/10.1016/j.marpolbul.2018.08.052

Author

Joy, Ruth ; Wood, Jason D. ; Sparling, Carol E. ; Tollit, Dom J. ; Copping, Andrea E. ; McConnell, Bernie J. / Empirical measures of harbor seal behavior and avoidance of an operational tidal turbine. In: Marine Pollution Bulletin. 2018 ; Vol. 136. pp. 92-106.

Bibtex - Download

@article{d2d8835edb394b6999c6dd9155b1e708,
title = "Empirical measures of harbor seal behavior and avoidance of an operational tidal turbine",
abstract = "There is global interest in marine renewable energy from underwater tidal turbines. Due to overlap in animal habitat with locations for tidal turbines, the potential for collisions has led to concern around strike risk. Using data from tagged harbor seals collected before construction and after operation of the SeaGen tidal turbine in Northern Ireland, this study quantifies risks of an operational turbine to harbor seals by taking into account turbine characteristics, tidal state, and seal behavior. We found 68{\%} spatial avoidance (95{\%} C.I., 37{\%}, 83{\%}) by harbor seals within 200 m of the turbine. When additionally accounting for variation in seal occupancy over depth and tidal flows, there is an overall reduction in collision risk from 1.29 to 0.125 seals per tidal cycle (90.3{\%} reduction; (95{\%} C.I., 83{\%}, 98{\%})) compared to risk calculated under assumptions of uniform habitat use. This demonstrates the need to incorporate environmental conditions to properly assess strike risk.",
keywords = "SeaGen turbine, Harbor seal, Animal tags, Behavioral avoidance, Strike risk",
author = "Ruth Joy and Wood, {Jason D.} and Sparling, {Carol E.} and Tollit, {Dom J.} and Copping, {Andrea E.} and McConnell, {Bernie J.}",
note = "We would like to acknowledge funding from Marine Current Turbines, the UK Natural Environment Research Council (NERC grant SMRU1001 to the Sea Mammal Research Unit and NERC Marine Renewable Energy Knowledge Exchange Programme to CES, Contract 4060038637), the U.S. Department of Energy and UK Department of Energy and Climate Change.",
year = "2018",
month = "11",
doi = "10.1016/j.marpolbul.2018.08.052",
language = "English",
volume = "136",
pages = "92--106",
journal = "Marine Pollution Bulletin",
issn = "0025-326X",
publisher = "PERGAMON-ELSEVIER SCIENCE LTD",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Empirical measures of harbor seal behavior and avoidance of an operational tidal turbine

AU - Joy, Ruth

AU - Wood, Jason D.

AU - Sparling, Carol E.

AU - Tollit, Dom J.

AU - Copping, Andrea E.

AU - McConnell, Bernie J.

N1 - We would like to acknowledge funding from Marine Current Turbines, the UK Natural Environment Research Council (NERC grant SMRU1001 to the Sea Mammal Research Unit and NERC Marine Renewable Energy Knowledge Exchange Programme to CES, Contract 4060038637), the U.S. Department of Energy and UK Department of Energy and Climate Change.

PY - 2018/11

Y1 - 2018/11

N2 - There is global interest in marine renewable energy from underwater tidal turbines. Due to overlap in animal habitat with locations for tidal turbines, the potential for collisions has led to concern around strike risk. Using data from tagged harbor seals collected before construction and after operation of the SeaGen tidal turbine in Northern Ireland, this study quantifies risks of an operational turbine to harbor seals by taking into account turbine characteristics, tidal state, and seal behavior. We found 68% spatial avoidance (95% C.I., 37%, 83%) by harbor seals within 200 m of the turbine. When additionally accounting for variation in seal occupancy over depth and tidal flows, there is an overall reduction in collision risk from 1.29 to 0.125 seals per tidal cycle (90.3% reduction; (95% C.I., 83%, 98%)) compared to risk calculated under assumptions of uniform habitat use. This demonstrates the need to incorporate environmental conditions to properly assess strike risk.

AB - There is global interest in marine renewable energy from underwater tidal turbines. Due to overlap in animal habitat with locations for tidal turbines, the potential for collisions has led to concern around strike risk. Using data from tagged harbor seals collected before construction and after operation of the SeaGen tidal turbine in Northern Ireland, this study quantifies risks of an operational turbine to harbor seals by taking into account turbine characteristics, tidal state, and seal behavior. We found 68% spatial avoidance (95% C.I., 37%, 83%) by harbor seals within 200 m of the turbine. When additionally accounting for variation in seal occupancy over depth and tidal flows, there is an overall reduction in collision risk from 1.29 to 0.125 seals per tidal cycle (90.3% reduction; (95% C.I., 83%, 98%)) compared to risk calculated under assumptions of uniform habitat use. This demonstrates the need to incorporate environmental conditions to properly assess strike risk.

KW - SeaGen turbine

KW - Harbor seal

KW - Animal tags

KW - Behavioral avoidance

KW - Strike risk

U2 - 10.1016/j.marpolbul.2018.08.052

DO - 10.1016/j.marpolbul.2018.08.052

M3 - Article

VL - 136

SP - 92

EP - 106

JO - Marine Pollution Bulletin

T2 - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

SN - 0025-326X

ER -

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ID: 255900153