Growth - Sustainable aquafeeds for marine finfish: Effects of vegetable oil replacement feeds containing novel microalgal and fungal oils on growth performance of juvenile sablefish

Description

The concomitant replacement of fish meal and fish oil in carnivorous marine fish feeds by more sustainable terrestrial alternatives is problematic due to the limited capability of marine fish to synthesize physiological essential long chain n-3 and n-6 highly unsaturated fatty acids (HUFAs) from shorter chain fatty acid precursors present in some vegetable oils. This two-year study will employ sablefish (Anoplopoma fimbria) as a model marine finfish to systematically investigate the potential of fully replacing the added fish oil component of a typical low fishmeal feed suitable for marine aquaculture. The focus of the proposed study will be on the effects of replacing fish oil in sablefish diets with sustainable lipid sources on diet utilization and growth. In particular, the overall goals of the proposed research are the following: 1. Determine the ability of sablefish to synthesize essential HUFAs from shorter chain fatty acid precursors. 2. Explore the effects of supplementing alternative vegetable oil feeds with novel sources of essential fatty acids on growth and nutrient utilization. 3. Evaluate the feasibility of using these novel oils in practical feeds. Data obtained in these studies will further our understanding of sablefish nutrition and set the stage for future research on the effects of sustainable feed ingredients on product quality, fish health, and the reproductive potential of cultured broodstock programs. This research specifically addresses a priority of the 2008 National Marine Aquaculture Initiative, which is nutrition research involving alternative protein based diets and the influence of diet on product quality. Fish weights and lengths.

Resources

Name Format Description Link
0 NWFSC Dataset Information page. Fish weights and lengths https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/datasets/dataset/6399
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/20537
0 NWFSC Dataset Information page. Fish weights and lengths https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/datasets/dataset/6399
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/nwfsc/dmp/pdf/20537.pdf
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords

Tags

  • aquaculture
  • northwest fisheries science center
  • doc/noaa/nmfs/nwfsc
  • obsolete
  • national marine fisheries service
  • noaa. u.s. department of commerce
  • unknown instrument
  • montlake
  • nwfsc- montlake laboratory
  • migrated from reut legacy data sets
  • alternative feed lipids
  • sablefish

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