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CRSP Researcher Presentations
Aquaculture America 2000, “Unmasking the Marvels of Aquaculture,” took place 2–5 February 2000 in New Orleans, Louisiana, following the PD/A CRSP annual meeting. CRSP researchers at Aquaculture America 2000 presented the following talks:

• W.M. Contreras-Sánchez, M.S. Fitzpatrick, and
C.B. Schreck, Masculinization of Nile tilapia by immersion in trenbolone acetate.
• M.S. Fitzpatrick, W.M. Contreras-Sánchez, and
C.B. Schreck, Methyltestosterone persists in the environment after use for masculinizing Nile tilapia.
• C. Craven and H.S. Egna, The Pond Dynamics/Aquaculture CRSP–developed technologies: Domestic rewards and returns.
• D. Valderrama and C.R. Engle, Risk analysis of shrimp farming in Honduras.
• J.J. Molnar, F. Alcántara, and S. Tello, Sustaining small-scale aquaculture in the Peruvian Amazon: Producer perceptions of constraints and opportunities. (Not presented due to author’s illness.)

Other CRSP researchers who presented or co-authored papers on non-CRSP-funded research include Claude Boyd, Konrad Dabrowski, Kevin Fitzsimmons, Chris Kohler, Rebecca Lochmann, Leonard Lovshin, Ron Phelps, Tom Popma, Jacques Rinchard, and Yang Yi. Also attending the meeting were Jim Bowman, Gabriel Márquez, and Marcos De Jesus.

Claude Boyd of Auburn University presented the keynote address on sustainable aquaculture

practices at the National Aquaculture Symposium, 22–24 November 1999, organized by Universiti Sains Malaysia in Penang. Boyd also presented results of PD/A CRSP soils research.

Kwei Lin and Yang Yi attended the First International Symposium on Cage Aquaculture in Asia, 2–6 November 1999 in Tungkang, Taiwan, and presented the following papers:

• Yang Yi and C.K. Lin. Integrated cage culture in ponds: Concepts, practice and perspectives.
• Z.W. Wu, J.W. Guo, and Yang Yi. Current status and sustainability of cage culture in reservoirs: A case study in China.
• C.K. Lin and K. Kaewpaitoon. An overview of freshwater cage culture in Thailand.

Marcos De Jesus and Fernando Alcántara attended “Development of Aquaculture in the Amazon” in December 1999, hosted by IIAP and sponsored by Brazilian, German, Argentinean, and international organizations. The following presentations summarized CRSP findings:

• F. Alcántara, Status of aquaculture in the Peruvian Amazon.
• F. Alcántara et al., Performance of Piaractus brachypomus and Colossoma macropomum stocked in ponds at different densities in Iquitos, Peru.
• K. Dabrowski et al., Preliminary assessment of gamete quality of Piaractus brachypomus cultured in ponds in Iquitos, Peru. (presented by De Jesus)

500 Years of Aquaculture in Hawaii
… from p. 6
Sadly, modern coastal land use planning regulations have made it almost impossible to restore ancient fishponds. Six to twenty individual permits may be required from national, state, and county agencies. Getting these permits requires more time, money, and bureaucratic tolerance than most prospective fishpond restorers have. If the permit process can become as integrated as the traditional aquaculture practices, a revitalization of Hawaiian aquaculture ponds may become a reality.
it also maintained pollution-free waters. Overfishing and wasteful consumption were also considered offensive to the gods. In traditional Hawaiian culture, the land and ocean and everything within them belonged to the gods. Kings oversaw these resources, with subdivisions that were essentially wedges of land running from upland to the sea administered by chiefs. Thus, land management on a watershed basis was practiced on Hawaii hundreds of years before Western resource managers recognized the importance of managing across political boundaries.

Western influences arrived with the explorer Captain Cook in 1778, and disease led to an 80% decrease in population in first 100 years. Changes in land tenure, social and economic structure, and the decline of the Hawaiian religion also led to a decline in traditional aquaculture. By 1985, fish production from aquaculture had fallen to less than 1% of what it was before European contact. The labor-intensive renovation and maintenance of the fishponds cannot be justified economically. However, members of communities on Molokai and other islands are interested in fishpond renovation to revive the qualities associated with ancient aquaculture: cooperative effort, traditional values, cultural continuity, and self-sufficiency.


•Remedios Bolivar, Philippines host country principal investigator, received the award for best doctoral dissertation from Central Luzon State University and was recently promoted to Assistant Director of the Freshwater Aquaculture Center.

• Wes Wood, principal investigator from Auburn University on the Kenya project, has been named an adjunct graduate faculty member at University of Nairobi.