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Selected Works

Ecology and Evolutionary Biology

2014

Cetaceans

Articles 1 - 3 of 3

Full-Text Articles in Life Sciences

The Fine-Scale Habitat Use Of Risso’S Dolphins Off Bardsey Island, Cardigan Bay (Uk), Marijke N. De Boer, Sonja Eisfeld, Mark P. Simmonds Dec 2014

The Fine-Scale Habitat Use Of Risso’S Dolphins Off Bardsey Island, Cardigan Bay (Uk), Marijke N. De Boer, Sonja Eisfeld, Mark P. Simmonds

Mark P. Simmonds, OBE

The main objectives of this study were (1) to estimate the population size of Risso’s dolphins off Bardsey Island using mark-recapture techniques (De Boer et al., 2013); and (2) to study habitat-use in relation to fine-scale oceanographic features. This work provides preliminary information on the habitat-use of Risso’s dolphins and will benefit future studies, along with the development of effective conservation measures for this species throughout the region.


Marine Noise Pollution - Increasing Recognition But Need For More Practical Action, Mark P. Simmonds, Sarah J. Dolman, Michael Jasny, E. C. M. Parsons, Lindy Weilgart, Andrew J. Wright, Russell Leaper Dec 2014

Marine Noise Pollution - Increasing Recognition But Need For More Practical Action, Mark P. Simmonds, Sarah J. Dolman, Michael Jasny, E. C. M. Parsons, Lindy Weilgart, Andrew J. Wright, Russell Leaper

Mark P. Simmonds, OBE

Over the last two decades, marine noise pollution has become increasingly recognized as an issue of major significance. The issue has become a primary focus of marine mammal research, but is also of concern to the public and policy makers. The result has been efforts involving a variety of disciplines, and relevant legislation and associated guidance are now in place in many parts of the world. Most current mitigation efforts are directed at reducing the risk of injury from exposure to intense noise, although the effectiveness of such mitigation measures in terms of risk reduction has rarely been quantified. Longer-term …


Cetaceans And Marine Debris: The Great Unknown, Mark Peter Simmonds Dec 2014

Cetaceans And Marine Debris: The Great Unknown, Mark Peter Simmonds

Mark P. Simmonds, OBE

Plastics and other marine debris have been found in the gastrointestinal tracts of cetaceans, including instances where large quantities of material have been found that are likely to cause impairment to digestive processes and other examples, where other morbidity and even death have resulted. In some instances, debris may have been ingested as a result of the stranding process and, in others, it may have been ingested when feeding. Those species that are suction or “ram” feeders may be most at risk. There is also evidence of entanglement of cetaceans in marine debris. However, it is usually difficult to distinguish …