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Author: Martin Wahl Publisher: Springer Science & Business Media ISBN: 3540927042 Category : Science Languages : en Pages : 447
Book Description
Marine hard bottoms feature some of the most spectacular and diverse biological communities on this planet. These not only contain a rich treasure of genetic, taxonomic and functional information but also deliver irreplaceable ecosystem services. At the same time, they are highly vulnerable and increasingly threatened by anthropogenic pressures. This volume has collected contributions by 50 scientists from numerous biogeographic regions, dealing with characteristics of hard bottom communities. Distributional patterns in space and time are described, followed by analyses of the intrinsic and extrinsic dynamics producing these patterns. A strong emphasis is placed on the ongoing changes occurring in the structure and diversity of these communities in response to spiralling environmental impacts, and on state-of-the-art countermeasures aiming to preserve these ecological treasures. Finally, various values of diversity are assessed, hopefully as an incentive for enhanced conservation efforts.
Author: Martin Wahl Publisher: Springer Science & Business Media ISBN: 3540927042 Category : Science Languages : en Pages : 447
Book Description
Marine hard bottoms feature some of the most spectacular and diverse biological communities on this planet. These not only contain a rich treasure of genetic, taxonomic and functional information but also deliver irreplaceable ecosystem services. At the same time, they are highly vulnerable and increasingly threatened by anthropogenic pressures. This volume has collected contributions by 50 scientists from numerous biogeographic regions, dealing with characteristics of hard bottom communities. Distributional patterns in space and time are described, followed by analyses of the intrinsic and extrinsic dynamics producing these patterns. A strong emphasis is placed on the ongoing changes occurring in the structure and diversity of these communities in response to spiralling environmental impacts, and on state-of-the-art countermeasures aiming to preserve these ecological treasures. Finally, various values of diversity are assessed, hopefully as an incentive for enhanced conservation efforts.
Author: National Research Council Publisher: National Academies Press ISBN: 0309083400 Category : Science Languages : en Pages : 137
Book Description
Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.
Author: Ryan Thomas Publisher: Scientific e-Resources ISBN: 183947453X Category : Languages : en Pages : 304
Book Description
Marine Biology: An Ecological Approach emphasizes the ecological principles that guide marine life throughout all environments within the world's oceans. It provide a unique ecological approach that helps students understand the real-world relevance of marine biology by exploring how organisms interact within their individual ecosystems. The text is organized by habitat, not classification, with each habitat receiving detailed, in-depth coverage that draws students into the subject matter. These include new coverage of the intertidal zone, salt marshes and estuaries, and tropical communities, as well as a revised discussion of humans' impact on the sea. Marine Biology emphasizes the ecological principles governing marine life throughout all environments within the world's oceans. This unique ecological approach adds real-world relevance by exploring how organisms interact within their individual ecosystems. The text is organized by habitat, each receiving detailed, in-depth coverage which gives instructors flexibility to focus on their particular areas of interest. Marine Biology: An Ecosystem Approach explores the potential use of bivalves as indicators and monitors of ecosystem health and describes experiments from the perspective of computer simulations, mesocosm studies, and field manipulation experiments.
Author: Jerónimo Pan Publisher: CRC Press ISBN: 0429678533 Category : Nature Languages : en Pages : 394
Book Description
We present you with an updated reference book aimed for upper-level undergraduate and graduate students interested in Marine Biology. The textbook is designed to introduce the fundamentals of marine organisms and their ecological roles in the world’s oceans, and is organized by functional groups, emphasizing marine biodiversity rather than systematics or habitats. Each chapter has been written and peer-reviewed by renowned international experts in their respective fields, and includes updated information on relevant topics, from the microbial loop and primary production in the oceans, to marine megafauna and the impacts of projected climate change on marine life and ecosystems.
Author: Alan Ansell Publisher: CRC Press ISBN: 1135357153 Category : Science Languages : en Pages : 468
Book Description
Oceanography and Marine Biology: an Annual Review considers basic areas of marine research, returning to them when appropriate in future volumes, and deals with subjects of special and topical importance in the field of marine biology. The thirty-sixth volume follows closely the objectives and style of the earlier well recieved volumes, conti
Author: Haakon Hop Publisher: Springer ISBN: 3319464256 Category : Science Languages : en Pages : 565
Book Description
This book focuses in detail on all ecologically important aspects of the Kongsfjorden system such as the marine and atmospheric environment including long-term monitoring, Ecophysiology of individual species, structure and function of the ecosystem, ecological processes and biological communities. The contributed articles include review articles and research articles that have a wider approach and bring the current research up-to-date. This book will form a baseline for future work.
Author: Martin Wahl
Author: Martin Wahl
Author: National Research Council
Author: Ryan Thomas
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Author: Jerónimo Pan
Author: Alan Ansell
Author: Haakon Hop
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