Dominic Tollit
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View article: Managing human activity and marine mammals: A biologically based, relativistic risk assessment framework
Managing human activity and marine mammals: A biologically based, relativistic risk assessment framework Open
Presented here is a broadly applicable, transparent, repeatable analytical framework for assessing relative risk of anthropogenic disturbances on marine vertebrates, with the emphasis on the sound generating aspects of the activity. The ob…
View article: Evaluation of a coastal acoustic buoy for cetacean detections, bearing accuracy and exclusion zone monitoring
Evaluation of a coastal acoustic buoy for cetacean detections, bearing accuracy and exclusion zone monitoring Open
There is strong socio‐political support for offshore wind development in US territorial waters and construction is planned off several east coast states. Some of the planned development sites coincide with important habitat for critically …
View article: A method to improve size estimates of walleye pollock (Theragra chalcogramma) Atka mackerel (Pleurogrammus monopterygius) consumed by pinnipeds: digestion correction factors applied to bones and otoliths recovered in scats
A method to improve size estimates of walleye pollock (Theragra chalcogramma) Atka mackerel (Pleurogrammus monopterygius) consumed by pinnipeds: digestion correction factors applied to bones and otoliths recovered in scats Open
The lengths of otoliths and other skeletal structures recovered from the scats of pinnipeds, such as Steller sea lions (Eumetopias jubatus), correlate with body size and can be used to estimate the length of prey consumed. Unfortunately, o…
View article: Sizes of walleye pollock (Theragra chalcogramma) consumed by the eastern stock of Steller sea lions (Eumetopias jubatus) in Southeast Alaska from 1994 to 1999
Sizes of walleye pollock (Theragra chalcogramma) consumed by the eastern stock of Steller sea lions (Eumetopias jubatus) in Southeast Alaska from 1994 to 1999 Open
Lengths of walleye pollock (Theragra chalcogramma) consumed by Steller sea lions (Eumetopias jubatus) were estimated by using allometric regressions applied to seven diagnostic cranial structures recovered from 531 scats collected in South…
View article: Sizes of walleye pollock (Theragra chalcogramma) and Atka mackerel (Pleurogrammus monopterygius) consumed by the western stock of Steller sea lions (Eumetopias jubatus) in Alaska from 1999 to 2000
Sizes of walleye pollock (Theragra chalcogramma) and Atka mackerel (Pleurogrammus monopterygius) consumed by the western stock of Steller sea lions (Eumetopias jubatus) in Alaska from 1999 to 2000 Open
Prey-size selectivity by Steller sea lions (Eumetopias jubatus) is relevant for understanding the foraging behavior of this declining predator, but studies have been problematic because of the absence and erosion of otoliths usually used t…
View article: Salish Sea Ambient Noise Study: Best Practices. (2021).
Salish Sea Ambient Noise Study: Best Practices. (2021). Open
All monitoring locations and hydrophone systems have unique features that affect the ability to monitor ambient noise levels accurately. As anthropogenic underwater noise effects on marine species becomes increasing important globally, it …
View article: A general framework for estimating the spatio-temporal distribution of a species using multiple data types
A general framework for estimating the spatio-temporal distribution of a species using multiple data types Open
Species distribution models (SDMs) are useful tools to help ecologists quantify species-environment relationships, and they are increasingly used to help determine the impacts of climate and habitat changes on species. In practice, data ar…
View article: Estimating animal utilization distributions from multiple data types: a joint spatio-temporal point process framework
Estimating animal utilization distributions from multiple data types: a joint spatio-temporal point process framework Open
Models of the spatial distribution of animals provide useful tools to help ecologists quantify species-environment relationships, and they are increasingly being used to help determine the impacts of climate and habitat changes on species.…
View article: A re-examination of the relationship between Steller sea lion (<i>Eumetopias jubatus</i>) diet and population trend using data from the Aleutian Islands
A re-examination of the relationship between Steller sea lion (<i>Eumetopias jubatus</i>) diet and population trend using data from the Aleutian Islands Open
Prey diversity and energy density have been linked to each other and to population trends in many studies of bird and mammal diets. We re-examined these relationships in Steller sea lions (Eumetopias jubatus (Schreber, 1776)) using data co…
View article: Potential Benefits of Vessel Slowdowns on Endangered Southern Resident Killer Whales
Potential Benefits of Vessel Slowdowns on Endangered Southern Resident Killer Whales Open
A voluntary commercial vessel slowdown trial was conducted through 16 nm of shipping lanes overlapping critical habitat of at-risk southern resident killer whales (SRKW) in the Salish Sea. From August 7 to October 6, 2017, the trial reques…
View article: The effects of vessel slowdowns on foraging habitat of the southern resident killer whales
The effects of vessel slowdowns on foraging habitat of the southern resident killer whales Open
The Enhancing Cetacean Habitat and Observation (ECHO) Program, a collaborative program led by Vancouver Fraser Port Authority, coordinated voluntary slowdowns for commercial shipping traffic in Haro Strait in the summers of 2017 and 2018, …
View article: Commercial ship versus whale watch boat noise: relative effects on Southern Resident killer whales
Commercial ship versus whale watch boat noise: relative effects on Southern Resident killer whales Open
Underwater noise may be impacting the population recovery of critically endangered Southern Resident Killer Whales (SRKW). This study used an SRKW-Noise exposure simulation model to compare noise effects from large (AIS-enabled) commercial…
View article: Comparing methods suitable for monitoring marine mammals in low visibility conditions during seismic surveys
Comparing methods suitable for monitoring marine mammals in low visibility conditions during seismic surveys Open
Loud sound emitted during offshore industrial activities can impact marine mammals. Regulations typically prescribe marine mammal monitoring before and/or during these activities to implement mitigation measures that minimise potential aco…
View article: Appendix A. Primers designed and used in the soft scat and bone analysis.
Appendix A. Primers designed and used in the soft scat and bone analysis. Open
Primers designed and used in the soft scat and bone analysis.
View article: Appendix B. Detailed molecular techniques used in prey DNA identification analyses.
Appendix B. Detailed molecular techniques used in prey DNA identification analyses. Open
Detailed molecular techniques used in prey DNA identification analyses.
View article: Appendix C. Neighbor-joining bootstrapped dendograms of the mitochondrial 16S gene constructed using the Jukes Cantor correction.
Appendix C. Neighbor-joining bootstrapped dendograms of the mitochondrial 16S gene constructed using the Jukes Cantor correction. Open
Neighbor-joining bootstrapped dendograms of the mitochondrial 16S gene constructed using the Jukes Cantor correction.