Re: La muerte del océano

Posted by JesusN on Sep 21, 2018; 9:15am
URL: http://foro-crashoil.109.s1.nabble.com/La-muerte-del-oceano-tp47377p47438.html

¡Pico de demanda! Qué bueno… es cierto, la gráfica que yo he puesto no es indicativa de sobrepesca cuando tenemos la acuicultura.

En cualquier caso sí que se conoce la sobrepesca, o se estima

“According to the United Nations, over 70 percent of the world’s fisheries are either ‘fully exploited’, ‘over exploited’ or significantly depleted’. Some species have already been fished to commercial extinction, and more are on the verge of extinction. Regulation of fishing vessels is universally inadequate. More often than not, the fishing industry is given access to fish stocks before the longer term impact of their fishing practices is understood.

Overfishing is causing profound changes in our oceans, perhaps changing them forever. Over 90 per cent of large predatory fish, such as cod and tuna, have already been caught. Fishermen have responded by changing to new target species, often renaming them to make them sound more appealing to consumers. Hence the Patagonian Toothfish was reinvented as Chilean Seabass, while the wonderfully named Slimehead metamorphosed into the Orange Roughy. But as the larger species get fished out, fishermen are increasingly forced to look further down the food chain.”

Overfishing - emptying our seas

Si vamos a la fuente, que siempre se supone es lo correcto

Based on FAO’s analysis of assessed stocks,16 the share of fish stocks within biologically sustainable levels has exhibited a downward trend, declining from 90 percent in 1974 to 68.6 percent in 2013 (Figure 13). Thus, 31.4 percent of fish stocks were estimated as fished at a biologically unsustain able level and therefore overfished

The State of World Fisheries and Aquaculture 2016

El impacto es considerable. Por eso los científicos proponen dejar de pescar en aguas internacionales

¿Podría una prohibición de la pesca en aguas internacionales acabar siendo una realidad?

Lo de la acuicultura es muy interesante, desconozco un poco su impacto en el océano, pero sí puedo anticipar su impacto en tierra firme, aumentar el uso del territorio para fines humanos, lo que nos lleva más cerca de traspasar otro límite planetario, que se explicó con claridad en su día en este magnífico artículo

Al borde del abismo