Project researchers assessed sablefish growth and health. Staff from the science center and the Jamestown S'Klallam Tribe grew the fingerlings to commercial size over approximately 18 months. In a recent project involving both the Jamestown S'Klallam Tribe and Cooke Aquaculture Inc., researchers stocked monosex female sablefish fingerlings in the Manchester Research Station's net pens. One of the sablefish, also known as black cod, raised at the Manchester Research Station. This partnership aims to develop and transfer knowledge and technology to the tribe in hopes of initiating commercial-scale operations in the United States. Since 2014, the science center, the Jamestown S'Klallam Tribe, and most recently, the University of Washington (with support from Sea Grant) have been experimenting with net pen grow-out of sablefish. Transferring the Latest Technology to the Jamestown S'Klallam Tribe For example, major hurdles include securing permits to grow fish in net pens and identifying groups willing to invest in the infrastructure necessary to support commercial-scale production. Researchers have overcome many technical challenges, but there remain significant bureaucratic and social constraints. However, challenges remain in making sablefish aquaculture a profitable commercial industry. These monosex female sablefish stocks have significantly higher growth rates than stocks that include slower-growing males. The culture of all-male or all-female populations is known as "monosex" culture. They also substituted an inexpensive alternative (clay) in place of algae for producing opacity in rearing water during the larval stage.Īlso, center researchers have developed non-GMO techniques to produce all-female stocks of sablefish for aquaculture. For example, they've optimized tank design, elevated temperatures to shorten the larval rearing phase. Through these efforts, our researchers and their collaborators have drastically improved rearing practices to reduce costs and improve production. After hatching, they are reared in tanks through the larval and juvenile stages and then moved to net pens at the Manchester Research Station in Port Orchard, Washington. Researchers collect and fertilize the eggs in vitro and then transfer them to environmentally-controlled incubators. Raising farmed sablefish begins with wild broodstock. Credit: NOAA Fisheries/James Hackett Improving Rearing Practices, But Challenges Remainįor over a decade, science center researchers have been developing technologies for culturing sablefish from eggs to adults and better understanding their biology and life cycle. The netpens where we raise sablefish at the Manchester Research Station.
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