Kategoria BISAC: Science >> Life Sciences - Marine Biology

Our knowledge of the oceans is increasing rapidly, as more powerful tools for exploration and exploitation make it easier to locate valuable resources, such as fish stocks, oil and gas reserves, or sites for wind and hydropower schemes. At the same time competition for space has intensified, affecting marine life and people's livelihoods. Much has been written about marine management using marine protected areas, but MPAs are only a small subset of spatial management tools available. MPAs and MPA networks are better seen as starting points for more comprehensive spatial management,...

Whales and dolphins are icons for the conservation movement. They are the most conspicuous ambassadors for entire marine ecosystems and possibly even for the biosphere as a whole. Concurrent with our realisation of impending threats to their environment is a growing scientific understanding of the social and cognitive complexity of many of these species.

This book brings together experts in the relevant diverse fields of cetacean research, to provide authoritative descriptions of our current knowledge of the complex behaviour and social organization of whales and dolphins. The...

The ocean teems with life that thrives under difficult situations in unusual environments. The Extreme Life of the Sea takes readers to the absolute limits of the ocean world--the fastest and deepest, the hottest and oldest creatures of the oceans. It dives into the icy Arctic and boiling hydrothermal vents--and exposes the eternal darkness of the deepest undersea trenches--to show how marine life thrives against the odds. This thrilling book brings to life the sea's most extreme species, and tells their stories as characters in the drama of the oceans. Coauthored by Stephen...

Apart from being commercially and socially significant, anchovies and sardines populations occupy crucial positions in the oceans ecosystems. Low in the food chain, clupeoids tend towards abundance, as if their purpose in life was to be eaten and fuel the upper levels of marine trophic chains. The present book covers a broad spectrum of topics on the biology (sytematics, phylogeography, reproduction, feeding) and ecology (habitat characterization, recruitment variability) of anchovies and sardines. It also puts together important information on the state of their fisheries, exploitation,...