Overfishing.pdf

Overfishing

Ray Hilborn

Over the past twenty years considerable public attention has been focused on the decline of marine fisheries, the sustainability of world fish production, and the impacts of fishing on marine ecosystems. Many have voiced their concerns about marine conservation, as well as the sustainable and ethical consumption of fish. But are fisheries in danger of collapse? Will we soon need to find ways to replace this food system? Should we be worried that we could be fishing certain species to extinction? Can commercial fishing be carried out in a sustainable way? While overblown prognoses concerning the dire state of fisheries are plentiful, clear scientific explanations of the basic issues surrounding overfishing are less so - and there remains great confusion about the actual amount of overfishing and its ecological impact.

Overfishing: What Everyone Needs to Know® will provide a balanced explanation of the broad issues associated with overfishing. Guiding readers through the scientific, political, economic, and ethical issues associated with harvesting fish from the ocean, it will provide answers to questions about which fisheries are sustainably managed and which are not. Ray and Ulrike Hilborn address topics including historical overfishing, high seas fisheries, recreational fisheries, illegal fishing, climate and fisheries, trawling, economic and biological overfishing, and marine protected areas. In order to illustrate the effects of each of these issues, they will incorporate case studies of different species of fish.

Overall, the authors present a hopeful view of the future of fisheries. Most of the worlds fisheries are not overfished, and many once overfished stocks are now rebuilding. In fact, we can learn from the management failures and successes to ensure that fisheries are sustainable and contribute to national wealth and food security. Concise and clear, this book presents a compelling big picture of the state of oceans and the solutions to ending overfishing.

What Everyone Needs to Know® is a registered trademark of Oxford University Press.

Overfishing of cod strongly impacted the Baltic Sea food web leading to an explosive increase of their main prey, the planktivorous fish sprat (Sprattus sprattus) (Köster et al., 2003). Trophic cascading was the strongest in summer when biomass of zooplankton declined, followed by increases in phytoplankton (Casini et al., 2008).

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Overfishing.pdf

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Aktuelle Bewertungen

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Sofia Voigt

Overfishing - Bloomberg 11.08.2017 · More and more, around the globe, fish is what’s for dinner. The average person eats more than 20 kilograms (44 pounds) a year, double the level of the 1960s. With rising incomes in developing

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Matteo Müller

Overfishing causing global catches to fall three times faster than estimated Read more I saw local fishermen returning at the end of each day with fewer fish to feed their families. How does overfishing threaten coral reefs?

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Noel Schulze

For our children to have future income, food and pleasure we need healthy oceans and a healthy fishing industry. We need to create ocean sanctuaries to improve the state of our oceans and our fish populations. We need to vastly improve the way we fish, so it is not wasteful and damaging, but first we urgently need to stop taking fish faster than our oceans can replenish. overfishing - LEO: Übersetzung im Englisch ⇔ Deutsch ...

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Jason Lehmann

Impact of overfishing It is very easy to predict the most obvious impact of overfishing — no more fish for humans! And this is only a few decades from now, if we do not act quickly and decisively. Overfishing - Bloomberg

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Jessica Kohmann

Kennst du Übersetzungen, die noch nicht in diesem Wörterbuch enthalten sind? Hier kannst du sie vorschlagen! Bitte immer nur genau eine Deutsch-Englisch-Übersetzung eintragen (Formatierung siehe Guidelines), möglichst mit einem guten Beleg im Kommentarfeld.Wichtig: Bitte hilf auch bei der Prüfung anderer Übersetzungsvorschläge mit! What are the impacts of overfishing - eschooltoday