Bycatch in the ocean shrimp Pandalus jordani fishery

Graduation date: 2002The purpose of this research was to explore the impact of finfish bycatch on\ud the ocean shrimp Pandalus jordani fishery using two methods. One method looked at\ud the breakage of the shrimp by finfish bycatch in the nets. The other looked at the\ud impact of bycatch on fishing decisions.\ud At-sea research found that finfish bycatch contributes to the breakage of ocean\ud shrimp. However, the impact is small relative to breakage caused by other handling\ud procedures. Bycatch was measured from each net of a double-rigged shrimp vessel,\ud where one side employed a Nordmore grate bycatch reduction device (BRD) and the\ud other served as a control. Shrimp catch was controlled for BRD use and catch day,\ud and sampled throughout processing to evaluate breakage. At greater than 50%\ud bycatch there was a significantly higher percentage of broken shrimp in the control\ud side than in the BRD side for samples taken at the first and third sampling point\ud (p