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annotated bibliography of fisheries economics literature - Office of ...

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discarded by the shrimp fleet, and increase trawling efficiency.<br />

Watson, John W., Ian Workman, Dan Foster, Charles Taylor, Arvind K.<br />

Shah, James Barbour, and Dominy Hataway (1993). "Status Report on<br />

the Potential <strong>of</strong> Gear Modifications to Reduce Finfish Bycatch in<br />

Shrimp Trawls in the Southeastern United States, 1990-1992." NOAA<br />

Technical Memorandum NMFS-SEFSC-327, March, 131 pp.<br />

This status report presents data from scuba diver evaluations and<br />

bycatch reduction/shrimp retention test results for prototype bycatch<br />

reduction device (BRD) designs. Fish bycatch and shrimp retention data are<br />

presented for 30 prototype BRD designs. Of these, 12 have demonstrated<br />

overall fish bycatch reduction rates between 43% and 67% and 7 had shrimp<br />

retention rates between 90% and 100%. Prototype designs that show the best<br />

potential for achieving a 50% reduction in total fish bycatch with better than<br />

90% shrimp retention are the large mesh funnel design, the extended funnel<br />

design, the HSB design, and the fisheye design.<br />

Watts, Noel H. and Gilmore J. Pellegrin, Jr. (1982). "Comparison <strong>of</strong><br />

Shrimp and Finfish Catch Rates and Ratios for Texas and Louisiana."<br />

Marine Fisheries Review, 44(9-10):44-49.<br />

A comparison was made between 1980 and 1981 commercial fishing to judge<br />

effects <strong>of</strong> the Texas closure on shrimp and finfish catches <strong>of</strong>f Texas and<br />

Louisiana. Historical data (1973-78) for the two areas was used as baseline,<br />

and comparisons were made <strong>of</strong> finfish/shrimp catch ratios and species<br />

composition. Mean shrimp catch rates (heads-on) standardized to 100-foot<br />

trawls for Texas and Louisiana in 1980 were 42.56 pounds/hour and 42.53<br />

pounds/hour, respectively, and in 1981 were 89.03 pounds/hour and 62.20<br />

pounds/hour. Mean finfish catch rates for Texas and Louisiana in 1980 were<br />

333.90 pounds/hour and 242.84 pounds/hour, respectively, and in 1981 were<br />

156.19 pounds/hour and 408.88 pounds/hour. Average finfish/shrimp ratios for<br />

Texas were 12.94 in 1980 and 2.55 in 1981. For Louisiana, the average<br />

finfish/shrimp ratios were 22.15 in 1980 and 37.23 in 1981.<br />

Differences between 1980 and 1981 shrimp catch rates <strong>of</strong>f Texas and<br />

Louisiana, and between Texas and Louisiana in 1981, were significant at the 95<br />

percent confidence level. Finfish catch rates <strong>of</strong>f both states were<br />

significantly influenced by depth, with no significant differences found<br />

between years for either state when the effect <strong>of</strong> depth was removed. Species<br />

composition <strong>of</strong> the bycatch was removed. Species composition <strong>of</strong> the bycatch in<br />

waters 10 fathoms or less was relatively consistent regardless <strong>of</strong> state or<br />

year. The composition <strong>of</strong> bycatch from deeper waters was much more variable<br />

and significantly different from catches made in the shallower waters.<br />

Overall, the analyses supported a hypothesis <strong>of</strong> increased shrimp catch rates<br />

due to the Texas closure. Finfish catch rates and compositions, however, were<br />

not shown to change as a result <strong>of</strong> the closure. This latter conclusion<br />

assumes the distribution <strong>of</strong> fishing effort by depth zone was unaffected by the<br />

closure.<br />

Webb, Michael G. and Martin J. Ricketts (1980). The Economics <strong>of</strong><br />

Energy. John Wiley & Sons, New York.<br />

The objective <strong>of</strong> this book is to provide an integrated and reasonably<br />

comprehensive introduction to the <strong>economics</strong> <strong>of</strong> energy. The analytical<br />

framework <strong>of</strong> the book is that <strong>of</strong> Paretian welfare <strong>economics</strong>. An extensive<br />

reference section is included in the book.<br />

Weber, Karen L. (1994). "Analysis <strong>of</strong> Decisionmaking Processes in the<br />

Ivoirian Maritime Fisheries Sector." C.M. 1994/T:24, Theme Session<br />

7 2 2

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