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Books > Science & Mathematics > Biology, life sciences > Hydrobiology

Ecological Parasitology - Reflections on 50 Years of Research in Aquatic Ecosystems (Hardcover): G Esch Ecological Parasitology - Reflections on 50 Years of Research in Aquatic Ecosystems (Hardcover)
G Esch
R1,559 Discovery Miles 15 590 Ships in 18 - 22 working days

Professor Gerald Esch has already published two books in what is becoming an informal series of essays exploring the way that discoveries about the biology of parasites have influenced ecological and evolutionary theories over a career that has spanned nearly 50 years. This book will be the third set of essays and will focus on key moments of discovery and explore how these achievements were due to collaboration, mentoring, and community building within the field of ecological parasitology. The book will not only describe case studies, pure science and biology but also act as a career guide for early-career ecologists emphasizing the importance of collaboration in the advancement of science.

Marine OMICS - Principles and Applications (Hardcover): Se-Kwon Kim Marine OMICS - Principles and Applications (Hardcover)
Se-Kwon Kim
R6,825 Discovery Miles 68 250 Ships in 10 - 15 working days

This book provides comprehensive coverage on current trends in marine omics of various relevant topics such as genomics, lipidomics, proteomics, foodomics, transcriptomics, metabolomics, nutrigenomics, pharmacogenomics and toxicogenomics as related to and applied to marine biotechnology, molecular biology, marine biology, marine microbiology, environmental biotechnology, environmental science, aquaculture, pharmaceutical science and bioprocess engineering.

Advances in Tuna Aquaculture - From Hatchery to Market (Hardcover): Daniel Benetti, Gavin Partridge, Alejandro Buentello Advances in Tuna Aquaculture - From Hatchery to Market (Hardcover)
Daniel Benetti, Gavin Partridge, Alejandro Buentello
R3,783 R3,528 Discovery Miles 35 280 Save R255 (7%) Ships in 10 - 15 working days

Advances in Tuna Aquaculture: From Hatchery to Market provides detailed overviews on the current status of tuna fisheries, fattening, and farming practices, as well as advances in closed-cycle tuna aquaculture. Contributors are renowned scientists, internationally recognized as authorities in their fields. This book addresses all basic and applied aspects of tuna aquaculture, presenting and discussing the global status of tuna fisheries, reproduction, broodstock management, spawning, larval rearing and early developmental stages including nursery and grow out methods. It presents incorporates the most comprehensive and updated data, statistics, and trends in tuna fisheries and aquaculture, covering and addresses a variety of topics ranging fromfrom endocrinology, nutrition, diseases, and genetics to economics and markets. It covers describes recent up-to-date progress on tuna aquaculture and hatchery development. It also provides a synopsisn overview of the challenges presently confronted by tuna aquaculturists,facing tuna aquaculture and and offers innovative views on the challengesbottle-neck issues faced by the industry with the current shift from fisheries to fattening to closed-cycle aquaculture. This is the first book to encompass all aspects related to the tuna aquaculture industry, and merges them into a state-of-the-art compendium that will serve as seminal reference for students, researchers, and professionals working with tuna biology, fisheries, and aquaculture worldwide.

Phycobiotechnology - Biodiversity and Biotechnology of Algae and Algal Products for Food, Feed, and Fuel (Paperback): Jeyabalan... Phycobiotechnology - Biodiversity and Biotechnology of Algae and Algal Products for Food, Feed, and Fuel (Paperback)
Jeyabalan Sangeetha, Devarajan Thangadurai, Saniyasi Elumalai, Shivasharana Chandrabanda Thimmappa
R2,487 Discovery Miles 24 870 Ships in 10 - 15 working days

Named #1 of 15 Best New Biotechnology Books to Read in 2021 by BookAuthority. This volume explores and explains the vast uses and benefits of algae as food, feed, and fuel. It covers the most advanced applications of algae in the food and feed industries and for environmental sustainability. With chapters written by experts and which were extensively reviewed by many well-known subject experts and professionals, Phycobiotechnology: Biodiversity and Biotechnology of Algae and Algal Products for Food, Feed, and Fuel provides an abundance of valuable information. Algae are a genetically diverse group of organisms with a wide range of physiological and biochemical characteristics that have unique capabilities in the fields of agriculture, pharmaceuticals, industry, and environment. Algae hold the potential to become the planet's next major source of energy and a vital part of the solution for climate change and dependence on fossil fuels. Many varieties of algae are also known to be an abundant source of vitamins, minerals, and other nutrients that can boost the human immune system.

Hydrogen in Disordered and Amorphous Solids (Hardcover, 1986 ed.): Gust Bambakidis Jr., Robert C Bowman Hydrogen in Disordered and Amorphous Solids (Hardcover, 1986 ed.)
Gust Bambakidis Jr., Robert C Bowman
R5,483 Discovery Miles 54 830 Ships in 18 - 22 working days

This is the second volume in the NATO ASI series dealing with the topic of hydrogen in solids. The first (V. B76, Metal Hydrides) appeared five years ago and focussed primarily on crystalline phases of hydrided metallic systems. In the intervening period, the amorphous solid state has become an area of intense research activity, encompassing both metallic and non-metallic, e.g. semiconducting, systems. At the same time the problem of storage of hydrogen, which motivated the first ASI, continues to be important. In the case of metallic systems, there were early indications that metallic glasses and disordered alloys may be more corrosion resistant, less susceptible to embrittlement by hydrogen and have a higher hydrogen mobility than ordered metals or intermetallics. All of these properties are desirable for hydrogen storage. Subsequent research has shown that thermodynamic instability is a severe problem in many amorphous metal hydrides. The present ASI has provided an appropriate forum to focus on these issues.

Transdisciplinary Marine Research - Bridging Science and Society (Hardcover): Silvia Gomez, Vera Koepsel Transdisciplinary Marine Research - Bridging Science and Society (Hardcover)
Silvia Gomez, Vera Koepsel
R4,086 Discovery Miles 40 860 Ships in 10 - 15 working days

- draws on the expertise of marine researchers from across the natural and social sciences - examines how the tools of transdisciplinarity can be used to return us to a sustainable co-existence with the ocean - draws on case studies from the nexus of the research and practices of engagement with a variety of stakeholder groups around the globe - will be of great interest to students and scholars studying marine science and ocean research across the natural and social sciences - will also be of interest to those looking to build a greater understanding of transdisciplinary research and knowledge co-production

Aquatic Ecotoxicology - Advancing Tools for Dealing with Emerging Risks (Hardcover): Claude Amiard-Triquet, Jean-Claude Amiard,... Aquatic Ecotoxicology - Advancing Tools for Dealing with Emerging Risks (Hardcover)
Claude Amiard-Triquet, Jean-Claude Amiard, Catherine Mouneyrac
R2,441 R2,309 Discovery Miles 23 090 Save R132 (5%) Ships in 10 - 15 working days

Aquatic Ecotoxicology: Advancing Tools for Dealing with Emerging Risks presents a thorough look at recent advances in aquatic ecotoxicology and their application in assessing the risk of well-known and emerging environmental contaminants. This essential reference, brought together by leading experts in the field, guides users through existing and novel approaches to environmental risk assessment, then presenting recent advances in the field of ecotoxicology, including omics-based technologies, biomarkers, and reference species. The book then demonstrates how these advances can be used to design and perform assays to discover the toxicological endpoints of emerging risks within the aquatic environment, such as nanomaterials, personal care products, PFOS and chemical mixtures. The text is an invaluable reference for any scientist who studies the effects of contaminants on organisms that live within aquatic environments.

Oceanography and Marine Biology: An Annual Review, Volume 60 (Hardcover): S.J. Hawkins Oceanography and Marine Biology: An Annual Review, Volume 60 (Hardcover)
S.J. Hawkins; Edited by (associates) A. L. Allcock, A. E. Bates, M. Byrne, A.J. Evans, …
R5,831 Discovery Miles 58 310 Ships in 10 - 15 working days

Celebrating its 60th volume (and thus 60 years of publication), this series remains one of the most cited sources in marine science and oceanography. This anniversary volume includes an Editorial discussing the UN Decade of Ocean Science as well as appreciation notes on the work of previous Editor-in-Chiefs. Chapters are authored by leading experts from around the world, including Greece, Chile, Australia, Canada and Australia, while an international Editorial Board ensures continued high quality and rigorous peer review of published articles. The ever increasing interest in work in oceanography and marine biology and its relevance to global environmental issues, especially global climate change and its impacts, creates a demand for authoritative reviews summarizing the results of recent research. Supplementary online videos as well as additional Tables and Appendices are available on the Support Tab of the book's Routledge webpage. This volume is available Open Access.

Sea Otter Conservation (Hardcover): Shawn Larson, James L. Bodkin, Glenn R. Van Blaricom Sea Otter Conservation (Hardcover)
Shawn Larson, James L. Bodkin, Glenn R. Van Blaricom
R2,039 Discovery Miles 20 390 Ships in 10 - 15 working days

Sea otters are good indicators of ocean health. In addition, they are a keystone species, offering a stabilizing effect on ecosystem, controlling sea urchin populations that would otherwise inflict damage to kelp forest ecosystems. The kelp forest ecosystem is crucial for marine organisms and contains coastal erosion. With the concerns about the imperiled status of sea otter populations in California, Aleutian Archipelago and coastal areas of Russia and Japan, the last several years have shown growth of interest culturally and politically in the status and preservation of sea otter populations. Sea Otter Conservation brings together the vast knowledge of well-respected leaders in the field, offering insight into the more than 100 years of conservation and research that have resulted in recovery from near extinction. This publication assesses the issues influencing prospects for continued conservation and recovery of the sea otter populations and provides insight into how to handle future global changes.

Value and Economy of Marine Resources (Hardcover): A Monaco Value and Economy of Marine Resources (Hardcover)
A Monaco
R3,762 Discovery Miles 37 620 Ships in 10 - 15 working days

Marine resources and their exploitation, recovery and economic networks they generate are here from the perspective now inevitable growing environmental constraints, policy management and technical innovation. The recent development of marine biotechnology, the discovery of a great pharmacopoeia especially in reef environments, the development of marine renewables, are examples which show that man can develop through these new technologies property and services of the ocean. But this development resources under pressure of global change requires not only taking into account technical, but also social and political. This is the price that the analysis of maritime activities will assess the sustainability and development of various economic sectors and coastal populations, faced with the objectives of a "blue growth" associated with a return to the "good state" of the marine environment.

Advances in Nemertean Biology (Hardcover): Ray Gibson, Etc, J. Moore, P. Sundberg Advances in Nemertean Biology (Hardcover)
Ray Gibson, Etc, J. Moore, P. Sundberg
R2,467 Discovery Miles 24 670 Ships in 10 - 15 working days

One: Ecology.- Life cycles of nemerteans that are symbiotic egg predators of decapod Crustacea: adaptations to host life histories.- Nemertea inhabiting the Haploops (Amphipoda) community of the northern Oresund with special reference to the biology of Nipponnemertes pulcher (Hoplonemertea).- Aspects of the biology of Pantinonemertes californiensis, a high intertidal nemertean.- The infestation and dispersion patterns of Carcinonemertes spp. (Nemertea) on their crab hosts.- Carcinonemertes pinnotheridophila sp. nov. (Nemertea, Enopla, Carcinonemertidae) from the branchial chambers of Pinnixa chaetopterana (Crustacea, Decapoda, Pinnotheridae): description, incidence and biological relationships with the host.- Ecological studies of the nemertean fauna in an estuarine system of the northwestern Gulf of Mexico.- Two: Taxonomy and Phylogeny.- Methods of classifying nemerteans: an assessment.- Phylogeny, natural groups and nemertean classification.- Major characters and enoplan systematics.- Observations on the morphology of some North American nemertines with consequent taxonomic changes and a reassessment of the architectonics of the phylum.- A reassessment of the systematics and a proposal for the phylogeny of some cosmopolitan Lineus species (Nemertea).- A proposal for a check-list of characteristics to be used in the description of palaeonemertean species.- The genus Valdivianemertes Stiasny-Wijnhoff 1923 (Nemertea, Enopla, Hoplonemertea): nomenclatural status and proper systematic position.- Paralineopsis taki gen. et sp. nov., a littoral heteronemertean from Japan, provided with special proboscideal, circulatory and sensory organs of significance to nemertean systematics.- Riserius pugetensis gen. n., sp. n. (Nemertina: Anopla), a new mesopsammic species, and comments on phylogenetics of some anoplan characters.- Enzyme electrophoresis, genetic identity and description of a new genus and species of heteronemertean (Nemertea, Anopla) from northwestern Spain and North Wales.- Morphological variation in the palaeonemertean Tubulanus annulatus (Montagu 1804).- Three: General Biology.- Evidence for a FMRFamide-like peptide in the heteronemertine Cerebratulus lacteus Leidy.- Molecular approaches to the study of evolution and phylogeny of the Nemertina.- The influence of light and sea water temperature on the reproductive cycle of Lineus ruber (Heteronemertea).- Patterns of trace metal accumulation in Swedish marine nemerteans.

Evolution, Development and Ecology of Anemonefishes - Model Organisms for Marine Science (Hardcover): Vincent Laudet, Timothy... Evolution, Development and Ecology of Anemonefishes - Model Organisms for Marine Science (Hardcover)
Vincent Laudet, Timothy Ravasi
R3,805 Discovery Miles 38 050 Ships in 10 - 15 working days

Contains basic and up-to-date information on an emerging fish model Allows non-specialist readers to grasp the relevance of a wide research area Provides accurate and easy to access information on each of the 30 species Includes guidance for establishing a breeding colony Documents that Anemonefishes are useful model organisms for ecological, developmental and climate research

Georges Bank - Past, Present, And Future Of A Marine Environment (Paperback): Guy C McLeod Georges Bank - Past, Present, And Future Of A Marine Environment (Paperback)
Guy C McLeod
R1,295 Discovery Miles 12 950 Ships in 10 - 15 working days

Georges Bank, off the coast of New England, has for years been known as one of the most productive of the world's fisheries. Now, recent exploratory surveys indicate it may hold still other resources–oil and natural gas–in sufficient abundance to justify their development. Suddenly, decisions must be made about whether it is possible to manage two

Marine Algae - Biodiversity, Taxonomy, Environmental Assessment, and Biotechnology (Hardcover): Leonel Pereira, Joao Magalhaes... Marine Algae - Biodiversity, Taxonomy, Environmental Assessment, and Biotechnology (Hardcover)
Leonel Pereira, Joao Magalhaes Neto
R5,367 Discovery Miles 53 670 Ships in 10 - 15 working days

This book is divided into three thematic areas. The first covers a revision of the taxonomy of algae, based on the algae portal, as well as the general aspects of biology and the methodologies used in this branch of marine biology. The second subject area focuses on the use of algae in environmental assessment, with an intensive implementation in Western economies and some emerging economies. The third topic is the potential use of algae in various industries including food, pharmaceuticals, cosmetics, agricultural fertilizers, and the emerging biofuels industries.

Rotifera, 8th - Proceedings of the VIIIth International Rotifer Symposium, Held in Collegeville, MN, USA, June 22-27, 1997... Rotifera, 8th - Proceedings of the VIIIth International Rotifer Symposium, Held in Collegeville, MN, USA, June 22-27, 1997 (Hardcover)
E. Wurdak
R2,504 Discovery Miles 25 040 Ships in 10 - 15 working days

Containing proceedings of the VIIIth International Rotifer Symposium which was held in Collegeville, Minnesota, USA, on June 22-27 1997, this volume includes review papers and reports of recent research findings along with the presentation of new methods in rotifer biology. The publications contained in this volume reflect the wide diversity of approaches, methods of analysis and conclusions that characterize research on the Rotifera. Some of the topics addressed are: rotifer distribution, responses to biotic and abiotic factors, genetic profile of individuals and populations, rotifer feeding and mating behavior, morphology, phylogeny and taxonomy.

Between Pacific Tides - Fifth Edition (Paperback, 5th edition): Edward F. Ricketts, Jack Calvin Between Pacific Tides - Fifth Edition (Paperback, 5th edition)
Edward F. Ricketts, Jack Calvin
R887 Discovery Miles 8 870 Ships in 10 - 15 working days

One of the classic works of marine biology, a favorite for generations, has now been completely revised and expanded. "Between Pacific Tides" is a book for all who find the shore a place of excitement, wonder, and beauty, and an unsurpassed introductory text for both students and professionals.
This book describes the habits and habitats of the animals that live in one of the most prolific life zones of the world--the rocky shores and tide pools of the Pacific Coast of the United States. The intricate and fascinating life processes of these creatures are described with affectionate care. The animals are grouped according to their most characteristic habitat, whether rocky shore, sandy beach, mud flat, or wharf piling, and the authors discuss their life history, physiology, and community relations, and the influence of wave shock and shifting tide level.
Though the basic purpose and structure--and much of the text--of the book remain the same, content has been increased by about 20 percent; a multitude of changes and additios has been made in the text; the Annotated Systematic Index and General Bibliography have been updated and greatly expanded (now almost 2,300 entries); more than 200 new photographs and drawings have been incorporated; and an entirely new chapter has been added--a topical presentation of the several factors influencing distribution of organisms along the shore. This edition also includes John Steinbeck's Foreword to the 1948 edition.

Recent Advances in Freshwater Crustacean Biodiversity and Conservation (Paperback): Tadashi Kawai, D. Christopher Rogers Recent Advances in Freshwater Crustacean Biodiversity and Conservation (Paperback)
Tadashi Kawai, D. Christopher Rogers
R2,376 Discovery Miles 23 760 Ships in 10 - 15 working days

Recent Advances in Freshwater Crustacean Biodiversity and Conservation focuses on minor crustacean groups and regionally endemic groups, all from freshwaters. Chapters in this book cover crustaceans such as Maxillopods, Mysids, Cumaceans, Isopods, Amphipods, Branchiopods, Copepods, and Decapods. Each looks at global or regional fauna and discusses conservation issues for that group. The majority of the chapters are based on papers presented at symposia organized by the editors at two international scientific meetings held in Barcelona and Washington DC. The contributors are world-renowned experts on their groups, as well as on freshwater crustacean conservation and biodiversity at global levels. It has previously been difficult for conservation managers, NGOs, and university professors and students who may not have access to comprehensive journal subscriptions to find relevant information on diversity and conservation of freshwater crustaceans. This book meets that need, addressing crustacean groups not previously treated and providing additional information beyond any presented in existing books. As the editors write in their introduction: we cannot conserve and we cannot protect what we do not know exists. This is a reliable, cutting-edge reference for anybody involved in crustacean research: students, researchers, agencies, and NGOs, as well as science educators, conservationists, and government conservation policymakers. The book will also be useful for those working in aquaculture and fisheries, given that many of the taxa discussed are economically important.

Oceanography and Marine Biology - An Annual Review, Volume 52 (Hardcover): R. N Hughes, D.J. Hughes, I P Smith Oceanography and Marine Biology - An Annual Review, Volume 52 (Hardcover)
R. N Hughes, D.J. Hughes, I P Smith
R5,791 Discovery Miles 57 910 Ships in 10 - 15 working days

Ever-increasing interest in oceanography and marine biology and their relevance to global environmental issues creates a demand for authoritative reviews summarising the results of recent research. Oceanography and Marine Biology: An Annual Review has catered to this demand since its founding by the late Harold Barnes fifty years ago. Its objectives are to consider, annually, the basic areas of marine research, returning to them when appropriate in future volumes; to deal with subjects of special and topical importance; and to add new subjects as they arise. The favourable reception accorded to all the volumes shows that the series is fulfilling a very real need: reviews and sales have been gratifying. The fifty-second volume follows closely the objectives and style of the earlier volumes, continuing to regard the marine sciences-with all their various aspects-as a unity. Physical, chemical, and biological aspects of marine science are dealt with by experts actively engaged in these fields. The series is an essential reference text for researchers and students in all fields of marine science and related subjects, and it finds a place in libraries of not only marine stations and institutes, but also universities. It is consistently among the highest ranking impact factors for the marine biology category of the citation indices compiled by the Institute for Scientific Information.

Algae - Anatomy, Biochemistry, and Biotechnology (Hardcover, 3rd edition): Laura Barsanti, Paolo Gualtieri Algae - Anatomy, Biochemistry, and Biotechnology (Hardcover, 3rd edition)
Laura Barsanti, Paolo Gualtieri
R3,681 Discovery Miles 36 810 Ships in 10 - 15 working days

Key Features: more information on macroalgae detailed description of biotic associations updated description of biomass cultivation systems coverage of different "omic" approaches and tools used in algal investigation an expanded and updated algae utilization chapter.

Handbook of Marine Biochemistry (Hardcover): Se-Kwon Kim Handbook of Marine Biochemistry (Hardcover)
Se-Kwon Kim
R9,709 Discovery Miles 97 090 Ships in 10 - 15 working days

This two volume set discusses the functions, metabolism and composition, biochemistry, illuminate materials, of fish and shellfish. It explores the utilization of byproducts from marine sources and explains the implications in the development and application of marine biochemistry. The two volume set discusses various approaches for extracting fish and shellfish, and the exploration and exploitation of Biochemistry of sea flora and fauna. The two volume set also examines essential elements and trace minerals that nurture various hormones produced in the human endocrine system that can regulate the metabolism and thereby provide safe and healthy options to treating diseases.

Coastwise - Understanding Britain's Shoreline (Hardcover, New edition): Peter Firstbrook Coastwise - Understanding Britain's Shoreline (Hardcover, New edition)
Peter Firstbrook
R868 R666 Discovery Miles 6 660 Save R202 (23%) Ships in 10 - 15 working days

Coastwise examines the coastline of the British Isles as a dynamic environment and offers you an understandable explanation of how the coastline functions as a single entity. It is supported by hundreds of stunning photos and illustrations. It begins by exploring how the forces of nature combine to create its physical features (and continue to do so). This is a multifaceted story that involves ancient geology and powerful ocean forces. It then turns to the living nature of the coast, covering the unique plants, animals and other organisms whose interdependence keeps the coast alive and healthy. These amazing creatures are described and displayed in full colour. The third part of the book looks at how humans have interacted with the coast, using it for defence, commerce and leisure. It explores these aspects from the earliest times to the present day. The final section shows, for each coastal region, where the features discussed in the book can be observed and enjoyed, giving you a practical way of exploring the elements described in the book. All aspects of the coast are covered, making it essential reading - or a wonderful gift - for all those who spend time on Britain's coast. As Countryfile presenter, Tom Heap, says in his Foreword: "These pages are a practical love letter to Britain's waterfront and no seaside holiday home should be without them."

Marine Ecology in a Changing World (Hardcover): Andres Hugo Arias, Maria Clara Menendez Marine Ecology in a Changing World (Hardcover)
Andres Hugo Arias, Maria Clara Menendez
R4,644 Discovery Miles 46 440 Ships in 10 - 15 working days

With contributions from an impressive group of Argentinean and German oceanographers, this book examines classical ecological issues relating to marine ecosystems in the context of climate change. It paints a picture of marine ecology at the crossroads of global warming. The book examines the fundamentals of marine ecology: ecosystem stability, water quality, and biodiversity in the context of the changes taking place globally. It then reviews the major marine ecosystems in the same context, from the primary producers to the big marine mammals. The chapters cover primary consumers level, benthic communities, seaweeds assemblages and wetlands ecology, fisheries, and seabirds.

Oceanography and Marine Biology - An Annual Review, Volume 51 (Hardcover, New): R. N Hughes, D.J. Hughes, I P Smith Oceanography and Marine Biology - An Annual Review, Volume 51 (Hardcover, New)
R. N Hughes, D.J. Hughes, I P Smith
R5,800 Discovery Miles 58 000 Ships in 10 - 15 working days

Ever-increasing interest in oceanography and marine biology and their relevance to global environmental issues creates a demand for authoritative reviews summarising the results of recent research. Oceanography and Marine Biology: An Annual Review has catered to this demand since its founding by the late Harold Barnes fifty years ago. Its objectives are to consider, annually, the basic areas of marine research, returning to them when appropriate in future volumes; to deal with subjects of special and topical importance; and to add new subjects as they arise. The favourable reception accorded to all the volumes shows that the series is fulfilling a very real need: reviews and sales have been gratifying. The fifty-first volume follows closely the objectives and style of the earlier volumes, continuing to regard the marine sciences-with all their various aspects-as a unity. Physical, chemical, and biological aspects of marine science are dealt with by experts actively engaged in these fields. The series is an essential reference text for researchers and students in all fields of marine science and related subjects, and it finds a place in libraries of not only marine stations and institutes, but also universities. It is consistently among the highest ranking impact factors for the marine biology category of the citation indices compiled by the Institute for Scientific Information.

Jellyfish Blooms - Ecological and Societal Importance - Proceedings of the International Conference on Jellyfish Blooms, Held... Jellyfish Blooms - Ecological and Societal Importance - Proceedings of the International Conference on Jellyfish Blooms, Held in Gulf Shores, Alabama, 12-14 January 2000 (Hardcover)
J.E. Purcell, W.M. Graham, H. J. Dumont
R2,476 Discovery Miles 24 760 Ships in 10 - 15 working days

Jellyfish', a group that includes scyphomedusae, hydromedusae, siphonophores and ctenophores, are important zooplankton predators throughout the world's estuaries and oceans. These beautiful creatures have come to public attention as featured exhibits in aquaria and in news headlines as invaders and as providers of genes used in biomedical research. Nevertheless, jellyfish are generally considered to be nuisances because they interfere with human activities by stinging swimmers, clogging power plant intakes and nets of fishermen and fish farms, and competing with fish and eating fish eggs and larvae. There is concern that environmental changes such as global warming, eutrophication, and over-fishing may result in increased jellyfish populations. The literature reviews and research papers in this volume explore the interactions between jellyfish and humans. Papers cover the medical aspects of jellyfish stings, jellyfish as human food and jellyfish fisheries, interactions of jellyfish and fish, effects of environmental changes on jellyfish, effects of introduced ctenophores on the Black Sea ecosystem, factors causing increases or concentrations of jellyfish, and others aspects of jellyfish ecology. This is an important reference for students and professional marine biologists, oceanographers, fishery scientists, and aquarists.

Red Snapper Biology in a Changing World (Paperback): Stephen T. Szedlmayer, Stephen A. Bortone Red Snapper Biology in a Changing World (Paperback)
Stephen T. Szedlmayer, Stephen A. Bortone
R1,568 Discovery Miles 15 680 Ships in 10 - 15 working days

Red Snapper Lutjanus campechanus, is an important commercial and recreational fish species and there has been much interest in maintaining its status among a variety of scientific, social and economic levels. Stocks are influenced by varying environmental conditions, changing fishing effort and efficiency, anthropogenic effects, inter- and intraspecific interactions, bycatch from other fisheries, and habitat alterations. Red Snapper Biology in a Changing World explores these changing factors and their potential effects on Red Snapper in the Eastern Atlantic region including the Gulf of Mexico and Southeastern U.S. The book will provide a better understanding of Red Snapper population fluctuations that will subsequently allow for better management decisions and more informed user groups in their efforts to maintain a sustainable fishery. It explores the responses Red Snapper have made, and are making, relative to their life history attributes such as early life history and adult ecology, especially attributes associated with population distribution and abundance, movement patterns, fish health issues and management success. A compendium of many papers presented at the 147th annual meeting of the American Fisheries Society in Tampa, Florida, this volume also includes additional research completed as a result of the symposium. It will be essential reading for fisheries scientists and managers, ichthyologists, resource and environmental managers, and policymakers who are involved with coastal fisheries.

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