Effects of Biopsy Sampling on Indo-Pacific Humpback Dolphins (Sousa chinensis) in a Polluted Coastal Environment

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Effects of Biopsy Sampling on Indo-Pacific Humpback Dolphins (Sousa chinensis) in a Polluted Coastal Environment Powered By Docstoc
					Aquatic Mammals 2008, 34(3), 310-316, DOI 10.1578/AM.34.3.2008.310




 Effects of Biopsy Sampling on Indo-Pacific Humpback Dolphins
       (Sousa chinensis) in a Polluted Coastal Environment
                           Thomas A. Jefferson1 and Samuel K. Hung2
      1
       Southwest Fisher
				
DOCUMENT INFO
Description: We conducted a biopsy sampling study of Indo-Pacific humpback dolphins (Sousa chinensis) in Hong Kong between October 2004 and January 2006. Humpback dolphins were sampled with a Barnett Ranger RX-150 crossbow. In total, 87 shots were taken at ranges of 8 to 28 m, and 36 tissue samples were collected. The hit rate was 56.3%, and the success rate was 41.4%. There was a better chance of hitting the dolphin with the dart when animals were closer to the shooter (all hits were at 23 m distance). Humpback dolphin reactions to the procedure were mostly slight, with a few moderate reactions but no extreme ones. Humpback dolphins reacted similarly to hits and misses, and their reaction can best be characterized as a startle response. All reactions were short-term, and there was virtually no evidence of long-term impacts on behavior, social organization, or distribution patterns. Wounds appeared to heal well and were healed over with tissue in 21 d. When conducted carefully by experienced persons, biopsy sampling of humpback dolphins can be done safely and effectively. [PUBLICATION ABSTRACT]
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