The specialists responsible for the activity were able to register 16 egg-layin events totally naturally and spontaneous, of which 4 were fertilized. The spawning period lasted from October 25 to December 17, 2018 with a total of 5,097,000 eggs. The fertilized eggs hatched on the sixth day, obtaining the first larvae of this species in Argentina.
More than 5 millon eggs were obtained by technician of INIDEP
The execution of a special protocol for the development of the wreckfish larviculture allowed to obtain important advances in the technology of its culture. The larvae managed to feed on live food (rotifer and Artemia) and balanced feed.
During this short period it was possible to obtain a wealth of valuable information through the daily taking of samples of larvae during their growth, to perform morphological measurements and subsequent histological and genetic analyzes, the latter being determined in collaboration with the Spanish Institute of Oceanography (IEO) of Vigo, Spain.
Video of the INIDEP which shows the process with which, with important advances, the first reproductive season 2018-2019 of the stock of chernia reproducers (Polyprion americanus) kept in captivity since 2013 at the facilities of the Institute.
With important advances, the first reproductive season 2018-2019 of the stock of chernia breeders (Polyprion americanus) kept in captivity since 2013 at the facilities of the National Institute for Fisheries Research and Development (INIDEP) ended.
Researchers have high expectations about what will happen in the next reproductive season since, having reached sexual maturation and subsequent spawning, they expect an improvement in the quality of the egg-laying events and a greater survival of the larvae.
The members of the MARI program highlight the fact that they managed to achieve the reproduction of this species without the use of hormones that induce maturation or sampling techniques that stress the individuals too much.
Argentina is one of the three countries in the world, together with Spain and New Zealand, which develops this initiative.
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