New PDF release: 5 Easy Pieces: The Impact of Fisheries on Marine Ecosystems

By Daniel Pauly

ISBN-10: 159726718X

ISBN-13: 9781597267182

ISBN-10: 1597267198

ISBN-13: 9781597267199

5 Easy items gains 5 contributions, initially released in Nature and technological know-how, demonstrating the big affects of recent business fisheries on marine ecosystems. in the beginning released over an eight-year interval, from 1995 to 2003, those articles illustrate a transition in clinical thought—from the initially-contested attention that the situation of fisheries and their underlying ocean ecosystems used to be, in reality, worldwide to its vast reputation by way of mainstream clinical and public opinion. Daniel Pauly, a well known fisheries specialist who was once a co-author of all 5 articles, provides every one unique article right here and surrounds it with a wealthy array of latest reviews, a lot of which led Pauly and his colleagues to additional research. furthermore, Pauly files how well known media pronounced at the articles and their findings. by way of doing so, he demonstrates how technological know-how evolves. in a single bankruptcy, for instance, the preferred media choose up a contribution and use Pauly’s conclusions to contextualize present political disputes; in one other, what should be obvious as nitpicking by way of fellow scientists leads Pauly and his colleagues to reinforce their case that advertisement fishing is endangering the worldwide marine atmosphere. This constitution additionally permits readers to work out how scientists’ interactions with the preferred media can form the reception in their personal, occasionally debatable, medical studies. In an epilog, Pauly displays at the ways in which medical consensus emerges from discussions either inside and outdoors the clinical neighborhood.

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Extra resources for 5 Easy Pieces: The Impact of Fisheries on Marine Ecosystems (State of the World's Oceans)

Sample text

This means that it takes close to 2 billion tons of phytoplankton production to support our consumption of swordfish steaks, tuna sashimi, and tuna salads, and all those other great predatory fish that taste so wonderful. As it happens, these fish are the only ones we harvest from the open ocean. Compare these 2 billion tons of phytoplankton needed to support these fisheries with the 89 billion tons of phytoplankton that the oceans produce annually and the number is quite small. One more example: the anchoveta, this one from an upwelling.

Thus, the information that the PPR required to sustain the world’s fisheries is 8% of the world’s primary production is not as telling as the information that PPR is very low in open ocean waters (2%) and very high on continental shelves (25–35%), where most fishery catches originate. 25 chapter two Fishing Down the Food Web Another Summer in Manila In 1998, three years after the outburst of work leading to the contribution presented in Chapter 1, I found myself once again summering in Manila. 1 But it still had then small islands of productivity, notably Rainer Froese’s FishBase and Villy Christensen’s Ecopath projects, which made it possible to continue working with the same productive gang, this time on change in species composition as a result of fishing.

Pimm’s interest in this topic stems from his longtime association with population biologist Paul Ehrlich of Stanford University, who was a coauthor of the Vitousek et al. (1986) publication that served as the model for our contribution. Pimm describes one of their encounters, in Hawaii, as follows: “Paul Ehrlich and I looked out from the dark green forest of the Alaka’i swamp 1000 m down the pali to the ocean. ” The answer to their question was long under way, but part of the foundation was laid at a conference in Berlin in 1990 (see Gordon et al.

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5 Easy Pieces: The Impact of Fisheries on Marine Ecosystems (State of the World's Oceans) by Daniel Pauly


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