Gift

Gift

This book with 33 chapters divided into five parts is a compendium of selected papers from the conference that can be broadly categorized as land and water management, fisheries and aquaculture and rice-based agriculture systems. Intensification of aquaculture and rice-based agriculture frequently produces negative effects that range from environmental degradation to social conflict; managing these impacts in a sustainable manner is imperative to protect the social and ecological foundations of tropical deltaic systems. New approaches to the intensification and diversification of rice-based production systems are presented in this book, which could impact positively on the livelihoods of millions who inhabit the deltaic areas of South, South East and East Asia if implemented on a large scale. More importantly, these innovations could begin to reverse man's current exploitive behaviour and ensure the preservation of critical ecosystems. A significant section of the compendium is devoted to the intensification of marine shrimp aquaculture production. Negative impacts associated with shrimp production are well recognized, and several innovative approaches to waste management are presented. Further critical questions are raised over the introduction of exotic shrimp species and the long-term impact this could have on native species, which suggests a cautionary approach to future development. A clear consensus emerged from the conference that highlighted the importance of social mobilization and the role of communities in decision making.

The effects of several food items on larvae production and survival ofthe mysid Mysidopsis almyra were compared. A total of sixdiets were used. The diets were: 1) phytoplankton (Isochrysisgalbana), 2) an artificial diet (Liqualife®, Cargill,Minneapolis, MN), 3) a mixed diet composed of both zooplankton (mostlycopepods)and phytoplankton, 4) 750 mg g−1 of HUFA enrichedArtemia nauplii and 250 mgg−1 of the artificial diet, 5) newly hatchedArtemia nauplii (24-hour incubation at 28°C) and 6) newly hatched Artemia naupliienriched with HUFA (SELCO®, INVE Inc., Ghent, Belgium) for 12 hours. Mysidsfed HUFA enriched Artemia nauplii (diet 6) had the highestproduction and survival rates, although not significant (P > 0.05), comparedto diets 3, 4 and 5, while the phytoplankton and the artificial diet hadsignificantly lower production and survival rates (p > 0.05). | Sí