Platform cage used for farming palm ruff, Seriolella violacea. (Photo: Universidad Católica del Norte)
First harvests of palm ruff farmed in platform-cages
Thursday, May 30, 2013, 04:00 (GMT + 9)
After researchers from the Universidad Católica del Norte (UCN) have been performing scientific and technological efforts for 22 months, the first harvests of the northern farmed palm ruff (Seriolella violacea) in platform-cage were achieved.
After managing to make the species reproducers release their gametes two years ago, the scientists obtained a ton of palm ruffs, with an average weight reaching about one kilogram each.
This progress was achieved in the framework of the Fondef farming based- technology development for the northern palm ruff production, led by Alfonso Silva, head of the Laboratory of Fish Culture belonging to the Faculty of Marine Sciences of the UCN.
This initiative, which will end in December 2013, has as its main objective to develop, test, and transfer technology focused on this resource, and to generate a new national aquaculture production alternative.
The first 1,400 juvenile specimens were stocked 12 months ago in a cage located in the maritime concession the UCN has in its Guayacan Campus, in Coquimbo.
This project is supported by Biomar, one of the main suppliers of fish feed worldwide, which was in charge of the specific diet for palm ruffs.
During the research, the scientists were advised by international experts, such as Manuel Carrillo, of the National Research Council (CSIC) of Spain, to test the photothermal technique in two sets of reproducers in order to control the seasonal reproduction. And also of Daniel Benetti, of the University of Miami, in relation to the incorporation of recirculation technology, management and use of biotechnology to improve larval and juvenile fish survival.
Last week the first harvest of 400 kg of palm ruff took place. The specimens were sent to the regional processing company Distrimar, associated with the project, for it to conduct performance tests (useful meat versus total fish weight), type of presentation (fillets, whole headless fish) and product shipments to distributors, reported UCN.
The first harvest was followed by another one of 200 kg, performed a few days later, which was given to the fishermen of Puerto Artesanal de Coquimbo.
Out of the other 400 kg that are harvested, some palm ruff specimens will be used for consumer testing and others will be selected as potential reproducers.
- Farming the first palm ruff fry
By Analia Murias