這份報告由「重新定義發展」（Redefining Progress）、「海洋計劃」（Ocean Project）和永續經濟中心三個獨立機構於15日共同發表，報告估計人類目前過量撈捕已達157%；其中包含美國在內共91個國家，在2003年便已超量捕漁。
To sustain present levels of seafood consumption, humans would need more than 2.5 times the area of all the Earth's oceans, according to "The Fishprint of Nations 2006," a new study based on the idea of the human ecological footprint. Like the ecological footprint, the fishprint measures the amount of ocean area needed to sustain the consumption patterns of individual nations and the human population as a whole.
The report, issued Wednesday by three diverse organizations – Redefining Progress, the Ocean Project, and the Center for Sustainable Economy – estimates that humans are overfishing by roughly 157 percent. It finds that 91 countries, including the United States, overfished their biological capacity in 2003.
"Scientific evidence underscores that the world's ocean is essential to human survival and also under direct and increasing threat from human actions," said Bill Mott, director of the Ocean Project based in Providence, Rhode Island . "The trends may seem dire, but we still have the opportunity to leave a more abundant and healthier ocean for our grandchildren. Every person on Earth is connected to the ocean, no matter where they live."
Setting aside a proportion of the ocean as "no-take zones" is essential for sustaining the productivity of commercial fisheries and the marine ecosystems on which they depend, the report recommends. The Fishprint of Nations suggests that at least 20 percent of countries' exclusive economic zones should be set aside as Marine Protected Areas.
The conclusions of the fishprint report are in line with those of another study published in the journal "Science" earlier this month showing that by 2048, every major commercial fish species would collapse if current fishing practices continue.
The fishprint also serves as a guide for consumers who wish to reduce the ecological impact of their seafood choices, as it quantifies the benefits of eating lower on the food chain.
Because they are lower on the food chain, species like scallops, crab, anchovies, and herring demand less ocean area for a given weight of catch as compared with species like halibut and tuna. Still, the report cautions, harvest methods for these species may be unsustainable.
The report suggests that to lessen the impact of seafood consumption, diners should choose sustainably fished or farmed seafood. Farmed catfish, clams, Dungeness crab, and spiny lobster top the list of ecologically better choices.