5 Easy Pieces: The Impact of Fisheries on Marine Ecosystems - download pdf or read online

By Daniel Pauly

ISBN-10: 159726718X

ISBN-13: 9781597267182

ISBN-10: 1597267198

ISBN-13: 9781597267199

5 Easy items good points 5 contributions, initially released in Nature and technological know-how, demonstrating the large affects of recent business fisheries on marine ecosystems. firstly released over an eight-year interval, from 1995 to 2003, those articles illustrate a transition in medical thought—from the initially-contested cognizance that the situation of fisheries and their underlying ocean ecosystems used to be, actually, worldwide to its wide attractiveness via mainstream clinical and public opinion. Daniel Pauly, a well known fisheries specialist who was once a co-author of all 5 articles, offers each one unique article right here and surrounds it with a wealthy array of latest reviews, lots of which led Pauly and his colleagues to extra examine. furthermore, Pauly files how renowned media said 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 decide up a contribution and use Pauly’s conclusions to contextualize present political disputes; in one other, what may be visible as nitpicking through fellow scientists leads Pauly and his colleagues to bolster their case that advertisement fishing is endangering the worldwide marine environment. This constitution additionally permits readers to work out how scientists’ interactions with the preferred media can form the reception in their personal, occasionally arguable, medical studies. In an epilog, Pauly displays at the ways in which clinical consensus emerges from discussions either inside of and out of doors the clinical group.

Show description

Read or Download 5 Easy Pieces: The Impact of Fisheries on Marine Ecosystems (State of the World's Oceans) PDF

Similar marine biology books

Download PDF by Marvin Zelkowitz (Ed.): Advances in Computers, Vol. 59

Considering the fact that 1960, Advances in pcs has chronicled the continuously transferring theories and techniques of knowledge expertise which drastically shapes our lives this present day This quantity, the 59th within the sequence, offers normal topics. the 1st four papers speak about device use in constructing software program - how teams interact to provide a product, and why the very industries that want them usually don't undertake such instruments.

Download e-book for iPad: Coral Bleaching: Patterns, Processes, Causes and by Madeleine J. H. van Oppen, Janice M. Lough

Probably the most dire outcomes of worldwide weather swap for coral reefs is the elevated frequency and severity of mass coral bleaching occasions. This quantity offers details at the factors and outcomes of coral bleaching for coral reef ecosystems, from the extent of person colonies to ecosystems and at diversified spatial scales, in addition to an in depth research of ways it may be detected and quantified.

Tracking Environmental Change Using Lake Sediments: Data by H. John B. Birks, André F. Lotter, Steve Juggins, John P. PDF

Numerical and statistical tools have speedily develop into a part of a palaeolimnologist’s tool-kit. they're used to discover and summarise complicated info, reconstruct earlier environmental variables from fossil assemblages, and attempt competing hypotheses concerning the motives of saw adjustments in lake biota via historical past.

Download PDF by F. Javier Sánchez Vázquez, José A. Muñoz-Cueto: Biology of European Sea Bass

Biology of eu Seabass presents up to date stories on key issues of seabass biology, written by way of prime clinical specialists with wide wisdom of seabass in addition to their respective box of workmanship. The ebook covers the biology and ecology of different sea basses and the most recent findings in molecular biology, body structure, and behaviour of this species.

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

Sample text

Across the open oceans only 2 percent of the productivity supports our fisheries. Yet across the geographically restricted, highly productive parts of the oceans and freshwater lakes, between a quarter and a third of all plant production supports our fisheries. Pimm’s (2001) audit of the Earth is in essence a recalculation of the work of Vitousek et al. (1986) and Pauly and Christensen (1995). Although he uses a different approach and different assumptions, he ends up largely confirming our findings.

One additional feature of such stratification is, obviously, that it allows the identification of problematic or interesting strata. 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.

Pauly and Christensen’s numbers show that a third of the oceans’ production goes to support our fisheries—a figure broadly similar to the two-fifths of the land’s production. That is a large percentage and certainly does not offer unlimited hope for oceans to be a new source of food for humanity. Nor is it one that suggests that the oceans are unaffected by our activities. […] To get the numbers of who eats whom, by how much, and with what efficiency, Pauly and Christensen examined 48 detailed case studies and obtained 140 estimates of efficiencies.

Download PDF sample

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

by Robert

Rated 4.63 of 5 – based on 34 votes