Lipid composition (Sustainable aquafeeds for marine finfish: Effects of vegetable oil replacement feeds containing novel microalgal and fungal oils on growth performance of juvenile sablefish)

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.

Fatty acid profiles

Data and Resources

Field Value
accessLevel public
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identifier gov.noaa.nmfs.inport:20539
language {en-US}
modified 2015-09-01
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programCode {006:056}
publisher (Point of Contact)
resource-type Dataset
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temporal 2010-09-01T00:00:00/2015-09-01T00:00:00
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • alternative-feed-lipids
  • amerigeo
  • amerigeoss
  • aquaculture
  • ckan
  • doc-noaa-nmfs-nwfsc-northwest-fisheries-science-center
  • geo
  • geoss
  • montlake
  • national
  • national-marine-fisheries-service
  • noaa-u-s-department-of-commerce
  • north-america
  • nwfsc-montlake-laboratory
  • reut-legacy-data-sets
  • sablefish
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer Johnson, Ronald B
maintainer_email Ronald.B.Johnson@noaa.gov
metadata_created 2025-11-21T08:50:36.903686
metadata_modified 2025-11-21T08:50:36.903690
notes 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. Fatty acid profiles
num_resources 2
num_tags 17
title Lipid composition (Sustainable aquafeeds for marine finfish: Effects of vegetable oil replacement feeds containing novel microalgal and fungal oils on growth performance of juvenile sablefish)