World Aquaculture Magazine - September 2021

WWW.WA S .ORG • WORLD AQUACULTURE • SEP TEMBER 2021 17 I n each issue of World Aquaculture , we highlight exciting papers from the Journal of the World Aquaculture Society. In this issue we highlight the paper “Nutritional evaluation of cricket, Gryllus bimaculatus , meal as fish meal substitute for olive flounder, Paralichthys olivaceus , juveniles” by S.-M. Jeong, S. Khosravi, I.R. Mauliasari, B.-J. Lee, S.-G. You and S.-M. Lee. The article appears in the Journal of the World Aquaculture Society, volume 52, issue 4, pages 859-880. It is available at: https://doi.org/10.1111/jwas.12790 or under the Publications tab at the WAS website ( www.was.org) . The olive flounder, Paralichthys olivaceus , is one of the most successfully cultured flatfish species worldwide. It is a species of very high importance in Korean flatfish aquaculture, retains very high retail value and plays an important role in cuisine in many nations as a prize sashimi product. This marine species demands high levels of easily digested protein and current production methods still rely on Recent Research Highlight from the Journal of the World Aquaculture Society large amounts of fishmeal or trash fish inclusion in formulated and freshly mixed diets, respectively. In the latest featured article, Seong-Mok Jeong and co-authors investigated increasing inclusion of meal from cricket, Gryllus bimaculatus , to replace fishmeal in olive flounder diets. Results showed up to 40 percent fishmeal replacement without any growth reduction. Antioxidant enzyme activity increased with cricket meal inclusion up to 60 percent but fatty acid profiles were impacted by very high inclusion levels. Cricket meal can be a low-cost feed ingredient and offers significant economic benefits over increasingly expensive fishmeal products or trash fish. Results indicate cricket meal is a readily available and viable protein source for partial fishmeal replacement for this valuable finfish species. —Matthew Slater, Executive Editor, JWAS