Shark Deterrent and Incidental Capture Workshop

Understanding the sensory and behavioral ecology of elasmobranchs is an important component for developing strategies aimed at reducing shark and ray incidental capture in longline and other fisheries. Feeding behavior of elasmobranchs involves processing by various sensory systems, including their visual, chemosensory, auditory, lateral line (provides the ability to sense water movement and pressure), and electrosensory components or units (provides the ability to sense extremely weak electrical fields). Experiments examining the use of sensory cues that influence feeding behavior are critical in the design of effective strategies for reducing unwanted bycatch of sharks, skates, and rays. The primary objective of the research projects described herein is to develop techniques and/ or commercially viable devices that eliminate or substantially reduce longline interactions with sharks while maintaining target species catch rates that are economically viable.
This report summarizes findings reported by scientists at a Shark Deterrent and Incidental Capture Workshop cosponsored by the Consortium for Wildlife Bycatch Reduction, the New England Aquarium, and NOAA PIFSC. The meeting was held at the New England Aquarium in Boston, Massachusetts during April 10–11, 2008. Part icipants of this workshop included NOAA fisheries biologists, researcher s from U.S. and foreign universities, and consultants from private companies. A list of participants and their affiliations is included at the end of this report.