Advisory PRODUCE: Abundance and scarcity of fish are climatic variations rather than by overfishing

The relationship between climate and the state of fisheries, was under discussion during the conference entitled “Environmental variability and Fisheries in the South East Pacific”Organized at the College of Fishery Engineers Lima. The exhibitor, university professor and former scientific director of IMARPE, Biologist Marco Espino Sánchez, current advisor to the Ministry of Production, said that the great cycles of abundance or scarcity of fish have been taken by climatic variations rather than by overfishing.

Espino was emphatic, to sustain that climate changes have led to changes in the fishery, given that the major upwelling areas are located in the tropics and has a high climate variability;

It also argues that although there are different conflicting opinions on the subject, in the areas of upwelling, diversity is not very big but there is high diversity in resources Anchovy, Sardine, alternating periodically, indicating to turn in

On the other hand, argued that the variant of our Sea surface temperature from 1875 to 2007 is off Peru in the Equatorial area and is where most changes, with extension to the Gulf of Panama and northern Chile.

“This behavior is due to environmental variables in macro scales and other local "Espino said, citing as examples the Southern Oscillation Index, the oscillation of the Canal Pacific, Sea surface temperature Chicama and multivariate index Enso. ”He said.

Asserting that within these changes, there is a variance in which can be identified during high variability corresponding to the first and last quarters of a century and low variability moments expressed by the variance and the similarity is repeated curiously towards the end of last century and early this century, statistically analyzing the moments of high variability, are those that occurred from 1876-1925 and 1976-2025, assuming that we are currently at a time of high variability, whereas low variability are included from 3926 to 75.

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SOURCE: COLLEGE OF FISHERY ENGINEER LIMA

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