posted at 05:51
Author: The Conversation
Why Arent We Farming Octopus?
The main thing that prevents octopus farming at large scale is that the common octopus - Octopus vulgaris - is tough to feed in captivity, especially when first born. Fishermen cooperatives in north-western Spain grow octopus in sea-cages. Over the past 15 years the Spanish Institute of Oceanography in Vigo has carried out important and successful research to overcome the problems with octopus cultivation, and the institute is now focused on rearing octopus across a full life cycle - from hatch to catch. Once the octopus is up to a certain size, there is another step to be solved: the transition between paralarvae and juvenile. This stage is another mortality peak in octopus farms. Working with other species that don't have a paralarvae phase would help, such as the Mexican Four-Eyed Octopus - known scientifically as Octopus maya. Octopus maya cultivation represents the most advanced attempts at commercially sound cephalopod aquaculture. In conclusion, the best octopus farms cannot yet compete directly with the common wild-captured product.

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