Collapsed fisheries

Atlantic cod (Gadus morhua L.) has formed the basis of many economically significant fisheries in the North Atlantic, and is one of the best studied marine fishes, but a legacy of overexploitation has depleted populations and collapsed fisheries in several regions.

17p vihagrid 30-01-2023 9 3   Download

Challenges to sustaining the productivity of oceanic and coastal fisheries have become more critical and complex as these fisheries reach the upper limits to ocean harvests. In addition, it is now clear that we are managing interactive and dynamic food webs rather than sets of independent single-species populations.

168p phoebe75 01-02-2013 49 9   Download

While Japan’s share in India’s shrimp exports declined from 60 percent in 1993–94 to 39 percent in 2001–02, Japan remains the country’s main export market (figure 7). Over this same period, exports to the U.S. declined from 22 percent in 1993–94 to approximately 13 percent in 1996–97, recovering to 7 reach 31 percent again in 2001–02. Exports to the EU expanded from 13 percent by value in 1993–94 to 21 percent in 1995–96, but then collapsed to 6 percent in 1997–98 reflecting the restrictions imposed by the European Commission (see below).

56p lulanphuong 19-03-2012 63 9   Download

Humanity relies on ecosystem products and services including resources, waste absorptive capacity, and space to host urban infrastructure. Environmental changes such as deforestation, collapsing fisheries, and CO2 accumulation in the atmosphere indicate that human demand may well have exceeded the regenerative and absorptive capacity of the biosphere.

19p phannhunguyet 24-11-2009 81 7   Download