Patterson (1992) declared that the fishing rate satisfying optimal E level of 0.5 tended to reduce pelagic fish stock abundance and, hence, the former author suggested that E should be maintained at 0.4 for optimal exploitation of those stocks.
Its fishery, which in the past decades has ranged between 828 (2001) and 24,828 (1980) metric tons per year [SERNAP, 2005. Servicio Nacional de Pesca: Anuarios estadísticos. (http://www.sernap.cl/paginas/publicaciones/anuarios/index_anuario.php)], is based exclusively on the exploitation of wild stocks.
Scenarios such as this are being repeated the world over - marine habitat degradation and the over exploitation of fish stocks.
For global commercial fisheries to maintain a sustainable future [1], [2] there is a need to develop and implement ecosystem management plans that enable managed exploitation of fish stocks while mitigating against bycatch [3] [7].
Moreover, the high level of exploitation of fish stocks in the Mediterranean [ Papaconstantinou and Farrugio, 2000] could make populations less resilient and more sensitive to environmental factors [ Hsieh et al., 2008], such as food availability.
That has not stopped large-scale exploitation of the stock, with illegal fishing commonplace for many years.
Taking into account that most multi-apartment buildings were built to last for 30 years or even less, complex renovations are crucial in order to continue the exploitation of the stock.
Fishermen in Monterey eventually found out, the ocean was not without its limits: after short, intense periods of exploitation, stocks of otters, abalone and sardines became much harder to find.
The main reasons for the decline of wild stocks are hydroelectric constructions and over-exploitation of fish stocks in the Baltic Sea area [ 13].
Simon Clydesdale from the environmental group Greenpeace said that "for decades in Europe fishing has been a story of decline, with severe over-exploitation of fish stocks and small-scale fishermen squeezed out of business by a minority of fishing barons.
