Prof Sascha Hooker

Prof Sascha Hooker


My research concerns specifically the foraging and diving behaviour of marine predators and more generally how this can inform conservation planning in the ocean.

Current Projects

Marine predator foraging ecology

Work on predator foraging often relies on inference from dive profiles. Using a miniature video camera attached to the animal we can view the foraging space of a diving animal and test previously used proxies for foraging behaviour. The identification of foraging areas and assessment of the stability of these over time and space enable us to investigate variability in foraging success and the criteria driving this (whether anthropogenically or environmentally induced).

Diving physiology

The mechanisms allowing marine mammals to avoid problems associated with diving to depth are still only partially understood. Recent deaths of beaked whales associated with sonar exposure appear to be due to decompression sickness. I am interested in how problems such as shallow-water blackout and decompression sickness are avoided, and use modelling approaches to determine risk based on dive profiles.

Conservation planning and marine protected areas

An ecosystem-approach is widely advocated in conservation planning but ecosystem modelling approaches, despite their sophistication, often suffer from a lack of source data or inherent uncertainties. An alternative is to use spatially explicit management. I am interested in the application of such marine reserve areas to higher predators.

source: symbiosis


Research Overview:

I have broad interests in foraging and diving behaviour of marine mammals, and the physiological constraints underlying this.  I am keen to apply my work wherever possible toward conservation biology, and have worked on introduced pest species, the effect of anthropogenic sounds, contaminants, and the development of marine protected areas. 



50 (of 58 /dk/atira/pure/researchoutput/status/published available) for sh43 (source: University of St Andrews PURE)
Please click title of any item for full details

Drivers and constraints on offshore foraging in harbour seals Sascha Kate Hooker, L. Mikkelsen, A. van Neer, J. Teilmann, U. Siebert, Mark Johnson
Scientific Reports 2021 vol. 11
Marine mammal conservation Sarah E. Nelms, Joanna Alfaro-Shigueto, John P. Y. Arnould, Isabel C. Avila, Susan Bengtson Nash, Elizabeth Campbell, Matt Carter, Timothy Collins, Rohan J. C. Currey, Camila Domit, Valentina Franco-Trecu, Mariana M. P. B. Fuentes, Eric Gilman, Robert G. Harcourt, Ellen M. Hines, A. Rus Hoelzel, Sascha Kate Hooker, David W. Johnston, Nachiket Kelkar, Jeremy J. Kiszka, Kristin L. Laidre, Jeffrey C. Mangel, Helene Marsh, Sara M. Maxwell, Aubrie B. Onoufriou, Daniel M. Palacios, Graham J. Pierce, Louisa S. Ponnampalam, Lindsay Porter, Debbie JF Russell, Karen A. Stockin, Dipani Sutaria, Nina Wambiji, Caroline R. Weir, Ben Wilson, Brendon J. Godley
Endangered Species Research 2021 vol. 44 pp. 291-325
Best practice guidelines for cetacean tagging Russel D. Andrews, Robin W. Baird, John Calambokidis, Caroline E. C. Goertz, Frances M. D. Gulland, Mads-Pieter Heide-Jorgensen, Sascha Kate Hooker, Mark Johnson, Bruce Mate, Yoko Mitani, Douglas P. Nowacek, Kylie Owen, Lori T. Quakenbush, Stephen Raverty, Jooke Robbins, Gregory S. Schorr, Olga V. Shpak, Forrest I. Townsend, Marcela Uhart, Randall S. Wells, Alexandre N. Zerbini
Journal of Cetacean Research and Management 2019 vol. 20 pp. 27-66
Best practice recommendations for the use of external telemetry devices on pinnipeds Markus Horning, Russel D. Andrews, Amanda M. Bishop, Peter L. Boveng, Daniel P. Costa, Daniel E. Crocker, Martin Haulena, Mark Hindell, Allyson G. Hindle, Rachel R. Holser, Sascha Kate Hooker, Luis A. Hückstädt, Shawn Johnson, Mary-Anne Lea, Birgitte I. McDonald, Clive R. McMahon, Patrick W. Robinson, Renae L. Sattler, Courtney R. Shuert, Sheanna M. Steingass, David Thompson, Pamela A. Tuomi, Cassondra L. Williams, Jamie N. Womble
Animal Biotelemetry 2019 vol. 7
Future directions in research on beaked whales Sascha Kate Hooker, Natacha Aguilar de Soto, Robin W. Baird, Emma Louise Carroll, Laura Feyrer, Patrick James Miller, Aubrie Onoufriou, Greg Schorr, Hal Whitehead
Frontiers in Marine Science 2019 vol. 5
Sea changes Sascha Kate Hooker
Nature 2018 vol. 558 pp. 184-185
D. Decompression stress Sascha Kate Hooker
Equity and career-life balance in marine mammal science? Sascha Kate Hooker, Samantha E. Simmons, Alison K. Stimpert, Birgitte I. McDonald
Marine Mammal Science 2017 vol. 33 pp. 955-965
Toothed whales Sascha Kate Hooker
Whales Philip Steven Hammond, Sonja Heinrich, Sascha Kate Hooker, Peter Lloyd Tyack
From physiology to policy Natacha Aguilar de Soto, Kalliopi Charitomeni Gkikopoulou, Sascha Kate Hooker, Saana Isojunno, Mark Johnson, Patrick James Miller, Peter Lloyd Tyack, Paul Wensveen, Carl Robert Donovan, Catriona M Harris, Danielle Harris, Laura Helen Marshall, Cornelia Sabrina Oedekoven, Rocio Prieto, Len Thomas
Proceedings of Meetings on Acoustics 2016 vol. 27
First indications that northern bottlenose whales are sensitive to behavioural disturbance from anthropogenic noise Patrick James Miller, P H Kvadsheim, F P A Lam, Peter Lloyd Tyack, C Cure, Stacy Lynn De Ruiter, L Kleivane, L D Sivle, S P van IJsselmuide, F Visser, Paul Wensveen, A M von Benda-Beckmann, Lucía Martina Martín López, Tomoko Narazaki, Sascha Kate Hooker
Royal Society Open Science 2015 vol. 2
Images as proximity sensors Sascha Kate Hooker, Tatsiana Barychka, Mark J Jessopp, Iain J Staniland
Animal Biotelemetry 2015 vol. 3
Marine mammals Sascha Kate Hooker
Prioritizing global marine mammal habitats using density maps in place of range maps Joanna Grand, Sascha Kate Hooker, Stephen Terrence Buckland, Randall R. Reeves, Lorenzo Rojas-Bracho, Doug Sandilands, Kristin Kaschner
Ecography 2014 vol. 37 pp. 212-220
Using energetic models to investigate the survival and reproduction of beaked whales (family Ziphiidae) Leslie Frances New, Sascha Kate Hooker, Daniel P. Costa, Samantha E. Simmons
PLoS One 2013 vol. 8
Deadly diving? Physiological and behavioural management of decompression stress in diving mammals Sascha Kate Hooker, A. Fahlman, M. J. Moore, N. Aguilar de Soto, Y. Bernaldo de Quiros, A. O. Brubakk, D. P. Costa, A. M. Costidis, S. Dennison, K. J. Falke, A Fernandez, M. Ferrigno, J. R. Fitz-Clarke, M. M. Garner, D. S. Houser, P. D. Jepson, D. R. Ketten, P. H. Kvadsheim, P. T. Madsen, N. W. Pollock, D. S. Rotstein, T. K. Rowles, S. E. Simmons, W. Van Bonn, P. K. Weathersby, M. J. Weise, T. M. Williams, Peter Lloyd Tyack
Proceedings of the Royal Society B: Biological Sciences 2012 vol. 279 pp. 1041-1050
Making protected area networks effective for marine top predators. Sascha Kate Hooker, Ana Maria Canadas, K. David Hyrenbach, Colleen Corrigan, Jeff J. Polovina, Randall R. Reeves
Endangered Species Research 2011 vol. 13 pp. 203-218
Biologging technologies: new tools for conservation S. Bearhop, G. Bearzi, B. Block, S. Bograd, S.J. Cooke, D. Costa, M.H. Godfrey, B.J. Godley, C. Hamner, D. Hodgson, Sascha Kate Hooker, Jason Matthiopoulos, McMahon C., J.A. Seminoff, R. Wilson
Endangered Species Research 2010 vol. 10
Marine Mammals Sascha Kate Hooker
2010 pp. 643-650
Telemetry Bernie J McConnell, Mike Fedak, Sascha Kate Hooker, Toby Patterson
2010 pp. 222-241
Estimating the effect of lung collapse and pulmonary shunt on gas exchange during breath-hold diving: The Scholander and Kooyman legacy A. Fahlman, Sascha Kate Hooker, A. Olszowka, B. L. Bostrom, D. R. Jones
Respiratory Physiology & Neurobiology 2009 vol. 165 pp. 28-39
Insights into habitat utilization by green turtles (Chelonia mydas) during the inter-nesting period using animal-borne digital cameras W. J. Fuller, A. C. Broderick, Sascha Kate Hooker, M. J. Witt, B. J. Godley
Marine Technology Society Journal 2009 vol. 43 pp. 51-59
Toothed Whales, Overview Sascha Kate Hooker
2009 pp. 1173-1179
Changes in persistent contaminant concentration and CYP1A1 protein expression in biopsy samples from northern bottlenose whales, Hyperoodon ampullatus, following the onset of nearby oil and gas development Sascha Kate Hooker, T. L. Metcalfe, C. D. Metcalfe, C. M. Angell, J. Y. Wilson, M. J. Moore, H. Whitehead
Environmental Pollution 2008 vol. 152 pp. 205-216
Data sampling options for animal-borne video cameras: Considerations based on deployments with Antarctic fur seals Sascha Kate Hooker, Susan Gale Heaslip, Jason Matthiopoulos, Oliver Cox, Ian Boyd
Marine Technology Society Journal 2008 vol. 42 pp. 65-75
Effect of animal-borne camera and flash on the diving behaviour of the female Antarctic fur seal (Arctocephalus gazella) Susan Gale Heaslip, Sascha Kate Hooker
Deep Sea Research Part I: Oceanographic Research Papers 2008 vol. 55 pp. 1179-1192
Bio-logging science: logging and relaying physical and biological data using animal-attached tags. Sascha Kate Hooker, Martin Biuw, Bernie J McConnell, Patrick James Miller, Carol Elizabeth Sparling
Deep Sea Research Part II: Topical Studies in Oceanography 2007 vol. 54 pp. 177-182
Pilot cetacean survey of the Sub-Arctic North Atlantic utilising a cruise-ship platform. R. Compton, A. Banks, L. Goodwin, Sascha Kate Hooker
Journal of the Marine Biological Association of the United Kingdom 2007 vol. 87 pp. 321-325
Gouge marks on deep-sea mud volcanoes in the eastern Mediterranean: caused by Cuvier's beaked whales? J M Woodside, L David, Alexandros Frantzis, Sascha Kate Hooker
Deep Sea Research Part I: Oceanographic Research Papers 2006 vol. 53 pp. 1762-1771
Ascent exhalations of Antarctic fur seals: a behavioural adaptation for breath-hold diving? Sascha Kate Hooker, Patrick James Miller, MP Johnson, OP Cox, Ian Boyd
Proceedings of the Royal Society of London Series B: Biological Sciences 2005 vol. 272 pp. 355-363
Marine mammal biology: an evolutionary approach Sascha Kate Hooker
Journal of Experimental Marine Biology and Ecology 2003 vol. 283 pp. 145-146
Salinity sensors on seals: using marine predators to carry CTD dataloggers. Sascha Kate Hooker, Ian Boyd
Deep Sea Research Part I: Oceanographic Research Papers 2003 vol. 50 pp. 927
Click characteristics of northern bottlenose whales (Hyperoodon ampullatus). Sascha Kate Hooker, H Whitehead
Marine Mammal Science 2002 vol. 18 pp. 69-80
Ecosystem consideration in conservation planning Sascha Kate Hooker, H Whitehead, S Gowans
Biological Conservation 2002 vol. 104 pp. 51-58
Fluctuations in distribution and patterns of individual range use of northern bottlenose whales. Sascha Kate Hooker, H Whitehead, S Gowans, RW Baird
Marine Ecology Progress Series 2002 vol. 225 pp. 287-297
Monitoring the prey-field of marine predators: combining digital imaging with datalogging tags. Sascha Kate Hooker, Ian Boyd, M Jessop, O Cox, J Blackwell, PL Boveng, JL Bengtson
Marine Mammal Science 2002 vol. 18 pp. 680-697
Organochlorine concentrations in resident bottlenose dolphins (Tursiops truncatus) in the Shannon estuary, Ireland SD Berrow, B McHugh, D Glynn, E McGovern, KM Parsons, RW Baird, Sascha Kate Hooker
Marine Pollution Bulletin 2002 vol. 44 pp. 1296-1303
Toothed whales, overview. Pages 1252 - 1260. Sascha Kate Hooker, WF Perrin, B Wursig, HGM Thewissen
Behavioral reactions of northern bottlenose whales to biopsy darting and tag attachment procedures. Sascha Kate Hooker, RW Baird, S Al-Omari, S Gowans, H Whitehead
Fishery Bulletin 2001 vol. 99 pp. 303-308.
Diet of northern bottlenose whales inferred from fatty-acid and stable-isotope analyses of biopsy samples. Sascha Kate Hooker, SJ Iverson, P Ostrom, SC Smith
Canadian Journal of Zoology 2001 vol. 79 pp. 1442-1454.
Diving and ranging behaviour of odontocetes: a methodological review and critique. Sascha Kate Hooker, RW Baird
Mammal Review 2001 vol. 31 pp. 81-105
Genetic diversity and population structure among northern bottlenose whales, Hyperoodon ampullatus, in the western North Atlantic Ocean. ML Dalebout, Sascha Kate Hooker, I Christensen
Canadian Journal of Zoology 2001 vol. 79 pp. 478-484.
Social organization in northern bottlenose whales (Hyperoodon ampullatus): not driven by deep water foraging? S Gowans, H Whitehead, Sascha Kate Hooker
Animal Behaviour 2001 vol. 62 pp. 369-377.
Sub-surface and night-time behaviour of pantropical spotted dolphins in Hawaii RW Baird, AD Ligon, Sascha Kate Hooker, AM Gorgone
Canadian Journal of Zoology 2001 vol. 79 pp. 988-996


The Secretary
Scottish Oceans Institute
Institiud Chuantan na h-Alba
Gatty Marine Laboratory
East Sands St Andrews
KY16 8LB

tel: +44 (0) 1334 463472
fax: +44 (0) 1334 463443