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

Advances in Marine Biology, Volume 66 (Hardcover): Michael Lesser Advances in Marine Biology, Volume 66 (Hardcover)
Michael Lesser
R4,599 Discovery Miles 45 990 Ships in 12 - 19 working days

"Advances in Marine Biology" has been providing in-depth and up-to-date reviews on all aspects of marine biology since 1963--over 40 years of outstanding coverage The series is well known for its excellent reviews and editing. Now edited by Michael Lesser (University of New Hampshire, USA) with an internationally renowned Editorial Board, the serial publishes in-depth and up-to-date content on many topics that will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, and biological oceanography.

"Advances in Marine Biology" has been providing in-depth and up-to-date reviews on all aspects of marine biology since 1963--over 40 years of outstanding coverage The series is well known for its excellence ofreviews and editing. Now edited by Michael Lesser (University of New Hampshire, USA) with an internationally renowned Editorial Board, the serial publishes in-depth and up-to-date content on many topics that will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, and biological oceanography. "

Impact of Climate Changes on Marine Environments (Hardcover, 2015 ed.): Tymon Zielinski, Marcin Weslawski, Karol Kulinski Impact of Climate Changes on Marine Environments (Hardcover, 2015 ed.)
Tymon Zielinski, Marcin Weslawski, Karol Kulinski
R3,453 Discovery Miles 34 530 Ships in 12 - 19 working days

This book contributes to the current discussion on global environmental changes by discussing modifications in marine ecosystems related to global climate changes. In marine ecosystems, rising atmospheric CO2 and climate changes are associated with shifts in temperature, circulation, stratification, nutrient input, oxygen concentration and ocean acidification, which have significant biological effects on a regional and global scale. Knowing how these changes affect the distribution and abundance of plankton in the ocean currents is crucial to our understanding of how climate change impacts the marine environment. Ocean temperatures, weather and climatic changes greatly influence the amount and location of nutrients in the water column. If temperatures and currents change, the plankton production cycle may not coincide with the reproduction cycle of fish. The above changes are closely related to the changes in radiative forcing, which initiate feedback mechanisms like changes in surface temperature, circulation, and atmospheric chemistry.

Marine Fungi - and Fungal-like Organisms (Hardcover): E B Gareth Jones, Ka-Lai Pang Marine Fungi - and Fungal-like Organisms (Hardcover)
E B Gareth Jones, Ka-Lai Pang
R6,500 Discovery Miles 65 000 Ships in 12 - 19 working days

Marine fungi play a major role in marine and mangrove ecosystems. Understanding how higher fungi with their spectrum of cellulolytic and ligninolytic enzymes degrade wood tissue, while labyrinthuloids and thraustochytrids further contribute to the dissolved organic matter entering the open ocean is essential to marine ecology. This work provides an overview of marine fungi including morphology and ultrastructure, phylogeny, biogeography and biodiversity. Increasingly, biotechnology is also turning to these organisms to develop new bioactive compounds and to address problems such as decomposition of materials in the ocean and bioremediation of oil spills. These potential applications of marine fungi are also treated. In the light of massive marine oil spills in the past years, the importance of understanding marine fungi and their role in the food chain cannot be underestimated.

Fish Physiology: Euryhaline Fishes, Volume 32 (Hardcover, New): Stephen D McCormick, Anthony P. Farrell, Colin J. Brauner Fish Physiology: Euryhaline Fishes, Volume 32 (Hardcover, New)
Stephen D McCormick, Anthony P. Farrell, Colin J. Brauner
R2,994 Discovery Miles 29 940 Ships in 12 - 19 working days

The need for ion and water homeostasis is common to all life. For fish, ion and water homeostasis is an especially important challenge because they live in direct contact with water and because of the large variation in the salt content of natural waters (varying by over 5 orders of magnitude). Most fish are stenohaline and are unable to move between freshwater and seawater. Remarkably, some fishes are capable of life in both freshwater and seawater. These euryhaline fishes constitute an estimated 3 to 5% of all fish species. Euryhaline fishes represent some of the most iconic and interesting of all fish species, from salmon and sturgeon that make epic migrations to intertidal mudskippers that contend with daily salinity changes. With the advent of global climate change and increasing sea levels, understanding the environmental physiology of euryhaline species is critical for environmental management and any mitigative measures. This volume will provide the first integrative review of euryhalinity in fish. There is no other book that focuses on fish that have the capacity to move between freshwater and seawater. The different challenges of salt and water balance in different habitats have led to different physiological controls and regulation, which heretofore has not been reviewed in a single volume.
Collects and synthesizes the literature covering the state of knowledge of the physiology of euryhaline fish

Provides the foundational information needed for researchers from a variety of fields, including fish physiology, conservation and evolutionary biology, genomics, ecology, ecotoxicology, and comparative physiologyAll authors are the leading researchers and emerging leaders in their fields

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
R2,629 Discovery Miles 26 290 Ships in 12 - 19 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.

Lab Manual for Karleskint/Turner/Small's Introduction to Marine  Biology, 4th (Paperback, 4th Revised edition): George... Lab Manual for Karleskint/Turner/Small's Introduction to Marine Biology, 4th (Paperback, 4th Revised edition)
George Karleskint, Richard Turner, James Small
R981 R928 Discovery Miles 9 280 Save R53 (5%) Ships in 10 - 15 working days

New to this edition, this lab manual has been specially designed to help students learn more about marine life and their habits.

Aquatic Ecosystem: Biodiversity, Ecology and Conservation (Hardcover, 2015 ed.): Mamta Rawat, Sumit Dookia, Chandrakasan... Aquatic Ecosystem: Biodiversity, Ecology and Conservation (Hardcover, 2015 ed.)
Mamta Rawat, Sumit Dookia, Chandrakasan Sivaperuman
R4,480 Discovery Miles 44 800 Ships in 10 - 15 working days

This book brings together the latest information on the rapid advances and developments in the field of aquatic ecology. India is very rich in terms of biological diversity due to its wide range of habitats and climatic conditions. It is home to as much as 7 per cent of the world's animal species, although it only accounts for about 2 per cent of the total landmass. The present work on biodiversity, ecology and conservation of aquatic resources represents original research in the field of aquatic biodiversity, wetland ecology and its applications with reference to the country's aquatic resources. There are 19 chapters, each contributed by an expert in his/her particular field and offering novel approaches to various topics in the area of aquatic ecosystems.

Basic and Applied Zooplankton Biology (Hardcover, 1st ed. 2019): Perumal Santhanam, Ajima Begum, Perumal Pachiappan Basic and Applied Zooplankton Biology (Hardcover, 1st ed. 2019)
Perumal Santhanam, Ajima Begum, Perumal Pachiappan
R3,687 Discovery Miles 36 870 Ships in 12 - 19 working days

The coastal and ocean ecosystem is a significant feature of our planet and provides a source of food for much of life on Earth. Millions of species have been, and are still being discovered in the world's oceans. Among these zooplankton serve as secondary producers and are significant as they form pelagic food links and act as indicators of water masses. They constitute the largest and most reliable source of protein for most of the ocean's fishes. As such, their absence or depletion often affects fishery. In many countries, the decline in fishery has been attributed to reduced plankton populations. Furthermore, trillions of tiny copepods produce countless faecal pellets contributing greatly to the marine snow and therefore accelerating the flow of nutrients and minerals from the surface waters to the seabed. They are phylogenetically highly successful groups in terms of phylogenetic age, number of living species and success of adaptive radiation. A study of the basic and applied aspects of zooplankton would provide an index of the fishery potential and applications, offering insights into ocean ecology to safeguard food supplies and livelihoods of the millions of people living in coastal areas. For this reason, we need to understand all the facets of zooplankton as well as their interactions with atmosphere and other life forms, including human. In this context, this book discusses the basic and applied aspects of zooplankton, especially taxonomy, mosquitocidal activity, culture, analysis of nutritional, pigments and enzyme profile, preservation of copepods eggs, bioenrichment of zooplankton and application of zooplankton in sustainable aquaculture production, focusing on novel biofloc-copefloc technologies, and the impact of acidification and microplastics on zooplankton. Offering a comprehensive overview of the current issues and developments in the field of environmental and commercial applications, this book is a valuable resource for researchers, aquaculturists, environmental mangers wanting to understand the importance of zooplankton and develop technologies for the sustainable production of fish and other commodities to provide food and livelihoods for mankind.

Ecology of Marine Ports of the Black and Azov Sea Basin (Hardcover, 1st ed. 2018): A. K. Vinogradov, Yu. I. Bogatova, I. A.... Ecology of Marine Ports of the Black and Azov Sea Basin (Hardcover, 1st ed. 2018)
A. K. Vinogradov, Yu. I. Bogatova, I. A. Synegub; Translated by Mariya Gelmboldt
R4,325 R3,756 Discovery Miles 37 560 Save R569 (13%) Ships in 12 - 19 working days

This work examines the waters of marine ports as unique integrated aquatic ecosystems. It regards marine ports as entities comprising components of natural and anthropogenic origin, including pelagic, periphytal and benthal subsystems. Using selected Black and Azov Sea ports as examples, the book discusses the hydrodynamics and water exchange, which are weakened in ports compared with open coastal zones. It reflects consequences of the presence of hydrobionts and the accumulation of organic matter, which are promoted by the variety of hard substrata and the absence of fishery. The book is divided into five main chapters. The first chapter describes the general characteristics of the marine ports at the northern coast of the Black and Azov Seas and their shipping channels. Chapters 2 to 4 discuss the main abiotic and biotic peculiarities of the pelagial, periphytal and benthal subsystems of those marine ports, and chapter 5 deals with tropho-dynamic processes in their ecosystems. A concluding section reflects recommendations how the ecosystems of ports in non-tidal seas may be ameliorated.

Fishes of the Gulf of Maine - Fishery Bulletin 74 (Hardcover): Henry B. Bigelow, William C. Schroeder Fishes of the Gulf of Maine - Fishery Bulletin 74 (Hardcover)
Henry B. Bigelow, William C. Schroeder
R1,304 Discovery Miles 13 040 Ships in 10 - 15 working days

This is a reprint of the first revision of this classic. Originally published in 1953 as Fishery Bulletin #74 for the US Department of the Interior, Fish and Wildlife Service. The "Gulf of Maine" is defined as an area from the Nantucket Shoals and Cape Cod in the west to Cape Sable in the east. The aim of the book was to provide a handbook for the easy identification of the fishes that occur in the Gulf of Maine, with summaries of what is known about the distribution and relative abundance together with information on the life history of each species. The authors used the 150-fathom boundary as the arbitrary offshore boundary as this will exclude almost all "deep-sea" fishes, which are numerous in the basin of the open Atlantic. Combining information gleaned from the literature as well as surveys from a large number of cruises, the volume covers the Cyclostomes, cartilaginous fishes, torpedoes, skates and rays and the bony fishes. The descriptions are as non-technical as is compatible with scientific accuracy and are limited to external features that will aid in identification in the field.

The Skadar/Shkodra Lake Environment (Hardcover, 1st ed. 2018): Vladimir Pesic, Gordan Karaman, Andrey G. Kostianoy The Skadar/Shkodra Lake Environment (Hardcover, 1st ed. 2018)
Vladimir Pesic, Gordan Karaman, Andrey G. Kostianoy
R8,731 Discovery Miles 87 310 Ships in 12 - 19 working days

This book reviews the unique ecosystem of the Lake Skadar/Shkodra and its basin, and discusses the latest advances made in this region to face the impact of climate change. Divided into 23 chapters, the book gathers leading expertise from various scientific and engineering communities and provides readers with extensive discussions of core issues, including the water and sediment chemistry of Lake Skadar/Shkodra and the metal pollution that is evident in plants, aquatic invertebrates and fish. Readers will discover how a sustainable science-based management approach can be applied to the Lake Skadar/Shkodra region, and will learn about the environment prospects for the region. This book is intended as an essential tool for all scientists interested in the Lake Skadar/Shkodra environment - in particular those investigating the interactions between land and water, between limnology and biota, and between natural and cultural resources.

Advances in Marine and Brackishwater Aquaculture (Hardcover, 2015 ed.): Santhanam Perumal, Thirunavukkarasu A R, Perumal... Advances in Marine and Brackishwater Aquaculture (Hardcover, 2015 ed.)
Santhanam Perumal, Thirunavukkarasu A R, Perumal Pachiappan
R5,112 Discovery Miles 51 120 Ships in 12 - 19 working days

This book compiles the latest findings in the field of marine and brackishwater aquaculture. It covers significant topics such as techniques of culture of live feeds (microalgae, rotifer, Artemia, marine copepod & polychaetes), while also highlighting vital themes like the culture and applications of free and marine sponge associated microbial probiotics, controlled breeding, seed production and culture of commercially important fin and shell fishes. Moreover, the book focuses on the breeding and culture of marine ornamental fishes, sea cucumber and sea urchin and discusses seaweeds culture, aqua feed formulation and nutrition, water quality management in hatchery and grow-out culture systems, fish disease diagnosis and health management and cryopreservation of fish gametes for sustainable aquaculture practices, all from a multidimensional perspective. The global fish production was 154 million tonnes in 2011 which more or less consisted of capture and culture fisheries (FAO, 2012). Roughly 80% of this is from inland-freshwater aquaculture and the remainder from capture fisheries in the marine and brackishwater sector. However, marine and brackishwater catches have recently begun to diminish due to overexploitation, climate change and pollution. The UNEP report affirmed that if the world remains on its current course of overfishing, by 2050, the ocean fish stock could become extinct or no longer commercially viable to exploit. In these circumstances, aquaculture is considered to be a promising sector to fulfill our future protein requirement. However, brackishwater and marine fish production now face serious challenges due to e.g. lack of quality fish seeds, feeds, poor water quality management and diseases. Fisheries and aquaculture sectors play a vital role as potential sources of nutritional security and food safety around the globe. Fish food is rich in protein, vitamins, phosphorous, calcium, zinc, selenium etc. In addition, fish contains omega-3 fatty acids, which help to prevent cardiovascular diseases. Fish food can also provide several health benefits to consumers. The omega 3 fatty acids found in fish can reduce the levels of LDL cholesterol (the "bad" cholesterol) and increase the HDL levels (the "good" cholesterol). Research conducted in Australia has proved that fish consumption can be used to cure hypertension and obesity. It is also reported that people who ate more fish were less prone to asthma and were able to breathe more easily. Omega 3 fish oil or fish consumption can help to prevent three of the most common forms of cancer: breast cancer, colon and prostate cancer. The omega 3 fatty acids present in fish or fish oil induce faster hair growth and prevent hair loss. Since most varieties of fish are rich in protein, eating fish helps to keep hair healthy. Furthermore, fish or fish oil helps in improving the condition of dry skin, giving it a healthy glow. It is useful in treating various skin problems such as eczema, psoriasis, itching, redness of skin, skin lesions and rashes. It is well known that eating fish improves vision and prevents Alzheimer's and type-2 diabetes, and can combat arthritis. Further, fish oil or fish is good for pregnant women, as the DHA present in it helps in the development of the baby's eyes and brain. It helps to avoid premature births, low birth weights and miscarriages. In addition, it is widely known that fish can be a good substitute for pulses in cereal-based diets for the poor. The global fish production was roughly 154 million tonnes in 2011 (FAO, 2012). It is estimated that by 2020 global fish requirements will be over 200 million tonnes; as such, innovative technological improvements are called for in order to improve the production and productivity in fisheries. In this context, this book provides valuable information for academics, scientists, researchers, government officials and farmers on innovative technological advances for sustainable fish production using aquaculture methods. The book identifies the main issues and trends in marine and brackishwater aquaculture from a global perspective in general and in the Indian context in particular. It includes 23 chapters written by prominent researchers from various institutes and universities across India, who address the latest aquaculture technologies with distinctive approaches to support academics, researchers and graduates in the fields of Fisheries, Aquaculture, Marine Science, Marine Biology, Marine Biotechnology, Zoology and Agricultural Sciences. Our thanks go to our contributors; we are confident that all readers will immensely benefit from their valued expertise in the field of marine and brackishwater aquaculture.

Outstanding Marine Molecules - Chemistry, Biology, Analysis (Hardcover): S La Barre Outstanding Marine Molecules - Chemistry, Biology, Analysis (Hardcover)
S La Barre
R4,369 R3,512 Discovery Miles 35 120 Save R857 (20%) Out of stock

Using a number of outstanding examples, this text introduces readers to the immense variety of marine natural compounds, the methodologies to characterize them and the approaches to explore their industrial potential. Care is also taken to discuss the function and ecological context of the compounds.
Carefully produced and easy to read, this book serves students and professionals wishing to familiarize themselves with the field, and is ideally suited as a course book for both industry to academia.

Advances in Marine Biology, Volume 58 (Hardcover): Michael Lesser Advances in Marine Biology, Volume 58 (Hardcover)
Michael Lesser
R4,925 Discovery Miles 49 250 Ships in 12 - 19 working days

Advances in Marine Biology has been providing in-depth and up-to-date reviews on all aspects of Marine Biology since 1963 -- over 40 years of outstanding coverage! The series is well-known for both its excellence of reviews and editing. The serial publishes in-depth and up-to-date content on a wide range of topics which will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, and biological oceanography.
* Rated "Number 1" in the highly competitive category of Marine & Freshwater Biology by ISI in the 2000 ISI journals citation report
* Maintains an Impact Factor of 3.37, the highest in the field
* Series features over 35 years of coverage of the research

The Knowledge Base for Fisheries Management, Volume 36 (Hardcover, 36th edition): Lorenzo Motos, Douglas Wilson The Knowledge Base for Fisheries Management, Volume 36 (Hardcover, 36th edition)
Lorenzo Motos, Douglas Wilson
R6,145 Discovery Miles 61 450 Ships in 10 - 15 working days

Fisheries are in a state of crisis throughout the world. While there has been some success, truly effective fisheries management seems beyond our grasp. The knowledge needed for proper management contains a broad array of facts and connections from statistical stock assessments, to the information that allows government agencies to track compliance with rules and beyond.
This book describes the state-of-the-art knowledge about fishery systems. Seldom seen in a scientific publication regarding fisheries science, this book presents a multidisciplinary perspective of fisheries management. Leading fisheries scholars with backgrounds in biology, ecology, economics and sociology ask how management institutions can learn and put their lessons to use. The Knowledge Base for Fisheries Management offers a unique overview of the world of fisheries management and provides the background to draw conclusions of what is needed to improve management.
Covering a wide range of regimes, case studies and professional perspectives, this publication will be an obliged reference to anyone involved on fisheries management, assessment, policy making or fisheries development all over the world.
* The only book on the market that analyzes fisheries in a biological, sociological and economic way
* Fills a gap, focusing not only on the production of knowledge for fisheries management but also on how it is used in all steps of the management system and the decision making processes
* Focuses on the hot topic: scientific knowledge and society-science based policies
* Documents disseminated research from many different management systems, both European and world wide

Plankton of Inland Waters (Hardcover): Gene E. Likens Plankton of Inland Waters (Hardcover)
Gene E. Likens
R2,076 Discovery Miles 20 760 Ships in 12 - 19 working days

A derivative of the "Encyclopedia of Inland Waters, Plankton of Inland Waters" covers protists, bacteria, fungi, algae, and zooplankton as well as the functional and system interactions of planktonic and attached forms in aquatic ecosystems. Because the articles are drawn from an encyclopedia, the articles are easily accessible to interested members of the public, such as conservationists and environmental decision makers.

- Includes an up-to-date summary of global aquatic ecosystems and issues

- Covers current environmental problems and management solutions

- Features full-color figures and tables to support the text and aid in understanding

Lake Ecosystem Ecology - A Global Perspective (Hardcover): Gene E. Likens Lake Ecosystem Ecology - A Global Perspective (Hardcover)
Gene E. Likens
R2,220 Discovery Miles 22 200 Ships in 12 - 19 working days

A derivative of the "Encyclopedia of Inland Waters, Lake Ecosystem Ecology" examines the workings of the lake and reservoir ecosystems of our planet. Information and perspectives crucial to the understanding and management of current environmental problems are covered, such as eutrophication, acid rain and climate change. Because the articles are drawn from an encyclopedia, the articles are easily accessible to interested members of the public, such as conservationists and environmental decision makers.

- Includes an up-to-date summary of global aquatic ecosystems and issues

- Covers current environmental problems and management solutions

- Features full-color figures and tables to support the text and aid in understanding

Advances in Marine Biology, Volume 56 (Hardcover, 56th edition): D.W. Sims Advances in Marine Biology, Volume 56 (Hardcover, 56th edition)
D.W. Sims
R4,940 Discovery Miles 49 400 Ships in 12 - 19 working days

"Advances in Marine Biology" has been providing in-depth and up-to-date reviews on all aspects of marine biology since 1963 -- over 40 years of outstanding coverage The series is well-known for both its excellence of reviews and editing. Now edited by D.W. Sims (Marine Biological Association Laboratory, Plymouth, UK), with an internationally renowned Editorial Board, the serial publishes in-depth and up-to-datecontent on a wide range of topicsthat will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, and biological oceanography.
* Rated "Number 1" in the highly competitive category of Marine & Freshwater Biology by ISI in the 2000 ISI journals citation report
* Maintains an Impact Factor of 3.37, the highest in the field
* Series features over 35 years of coverage of the research"

The Mekong - Biophysical Environment of an International River Basin (Hardcover): Ian Charles Campbell The Mekong - Biophysical Environment of an International River Basin (Hardcover)
Ian Charles Campbell
R2,051 Discovery Miles 20 510 Ships in 12 - 19 working days

The Mekong is the most controversial river in Southeast Asia, and increasingly the focus of international attention. It flows through 6 counties, China, Myanmar, Laos, Thailand, Cambodia and Viet Nam. The 4 downstream countries have formed the Mekong River Commission to promote sustainable development of the river and many of their people depend on it for their subsistence ? it has possible the largest freshwater fishery in the world, and the Mekong waters support rice agriculture in the delta in Viet Nam (which produces about 40% of that country's food) as well as in Cambodia, Laos and Thailand.
China is now building the first large mainstream dam on the river, and has proposals for several more. These dams are likely to affect the downstream countries. Several of the downstream countries also have plans for large scale hydropower and irrigation development which could also impact the river.
This book will provide a solid overview of the biophysical environment of the Mekong together with a discussion of the possible impacts, biophysical, economic and social, of some possible development scenarios. It is intended to provide a technical basis which can inform the growing political and conservation debate about the future of the Mekong River, and those who depend on it. It is aimed at river ecologists, geographers, environmentalists and development specialists both in the basin and (especially) outside for whom access to this material is most difficult.
This book will be the first comprehensive treatment of the Mekong system

Key Features
*The first comprehensive overview of all aspects of the Mekong River system.
*Deals with a regionally critical ecosystem and one under threat.
*The Mekong supports the world's largest freshwater fishery and provides water underpinning a major regional rice paddy system.
* Presents the authoritative findings of the Mekong River Commission's research for a wider audience for the first time outside of limited distribution reports

Compendium of Trace Metals and Marine Biota - Volume 1: Plants and Invertebrates (Hardcover, New): Ronald Eisler Compendium of Trace Metals and Marine Biota - Volume 1: Plants and Invertebrates (Hardcover, New)
Ronald Eisler
R6,083 Discovery Miles 60 830 Ships in 12 - 19 working days

Each book has two main goals
1. Determine baseline concentrations of metals and metalloids in tissues of representative field populations of estuarine coastal, and open ocean organisms (Book 1: algae and macrophytes, protists, sponges, coelenterates, molluscs, crustaceans, insects, chaetognaths, annelids, echinoderms, and tunicates) (Book 2: elasmobranchs, fishes, reptiles, birds, mammals) and their significance to organism health and to the health of their consumers.
2. Synthesize existing information on biological, chemical, and physical factors known to modify uptake, retention, and translocation of each element under field and laboratory conditions. Recognition of the importance of these modifiers and their accompanying interactions is essential to the understanding of metals kinetics in marine systems and to the interpretation of baseline residue data.

Synthesizes existing information on biological, chemical, and physical factors known to modify uptake, retention, and translocation of each element

Aids understanding of metals kinetics in marine systems

Allows the interpretation of baseline residue data.

Compendium of Trace Metals and Marine Biota - Volume 2: Vertebrates (Hardcover, New): Ronald Eisler Compendium of Trace Metals and Marine Biota - Volume 2: Vertebrates (Hardcover, New)
Ronald Eisler
R5,411 Discovery Miles 54 110 Ships in 12 - 19 working days

Each book has two main goals
1. Determine baseline concentrations of metals and metalloids in tissues of representative field populations of estuarine coastal, and open ocean organisms (Book 1: algae and macrophytes, protists, sponges, coelenterates, molluscs, crustaceans, insects, chaetognaths, annelids, echinoderms, and tunicates) (Book 2: elasmobranchs, fishes, reptiles, birds, mammals) and their significance to organism health and to the health of their consumers.
2. Synthesize existing information on biological, chemical, and physical factors known to modify uptake, retention, and translocation of each element under field and laboratory conditions. Recognition of the importance of these modifiers and their accompanying interactions is essential to the understanding of metals kinetics in marine systems and to the interpretation of baseline residue data.

Synthesizes existing information on biological, chemical, and physical factors known to modify uptake, retention, and translocation of each element

Aids understanding of metals kinetics in marine systems

Allows the interpretation of baseline residue data.

Diel Vertical Migration of Zooplankton in Lakes and Oceans - causal explanations and adaptive significances (Hardcover, 2010... Diel Vertical Migration of Zooplankton in Lakes and Oceans - causal explanations and adaptive significances (Hardcover, 2010 ed.)
Joop Ringelberg
R4,415 Discovery Miles 44 150 Ships in 10 - 15 working days

The book deals with Diel Vertical Migration (DVM) of zooplankton in oceans and lakes and is the first critical discussion of the literature in 100 years of research. The accent is on photo-response experiments that revealed the physiological fundament unifying migration behaviour in both biotopes. Accelerations in relative changes in light intensity of dawn and dusk are the stimuli that trigger a PhotoBehaviour Mechanisms (PBM) evolved to realise predator evasion and starvation prevention. Physiology and behaviour are tuned to these adaptive goals. A "set of ecological factors" is necessary and an algorithm shows the operation of the "set." However, not only the kinetic component of behaviour is based on light, also orientation but now the angular light distribution is responsible. Contrast orientation as in Daphnia may also hold for other animals, for example, Euphausia.The application of the PBM in lakes and oceans is demonstrated amongst other for the vertical movements of Sound Scattering Layers. These layers move faster, slower or as fast as an isolume which was a problem for the decennia long explanation that migrating animals followed an optimal light intensity. The enigma was solved. Using time series of changes in population size, egg ratios, development times and death rates due to predation by juvenile fish, the influence of DVM on population dynamics was analysed. Finally, covering the flow of matter in the traditional food web by a network of information transitions illustrates the controlling function of infochemicals, such as fish kairomones.

The Dusky Dolphin - Master Acrobat Off Different Shores (Hardcover): Bernd Wursig, Melany Wursig The Dusky Dolphin - Master Acrobat Off Different Shores (Hardcover)
Bernd Wursig, Melany Wursig
R2,263 R2,063 Discovery Miles 20 630 Save R200 (9%) Ships in 12 - 19 working days

Much has been written about dolphins and whales, and excellent books exist especially on the charismatic bottlenose dolphins; and killer, humpback, and sperm whales. But detailed studies have been carried out on a handful of other species, and this book summarizes our state of knowledge of a little dolphin the southern hemisphere dusky, and compares its behavioral strategies in different environs. The editors, Bernd and Mel Wursig, began studying duskies in Patagonia Argentina in 1972. Although they have been to many parts of the Earth since then -- including work on Amazon and Yangtze river dolphins, Hawai i for the delicate lovely spinner dolphin, the Arctic for bowhead and gray whale work, and bottlenose dolphins in several milieus -- they have always returned to their first love of unraveling the social patterns and life strategies of duskies that exist in small groups in semi-enclosed bays and as herds of well over one thousand in the open ocean. This book documents the latest research, from their feeding patterns to their acrobatic skills. It is full of scientific facts, with a sense of poetry and wonder of the unknown.
- Only book fully devoted to the southern hemisphere "dusky" dolphin
- Heavily illustrated with charts, figures, tables, and all color photos
- Written by a cadre of experts intimately familiar with dolphin field work
- Written in an accurate yet accessible style for the scientist and natural historian alike"

Paleolimnology - The History and Evolution of Lake Systems (Hardcover, New): Andrew S. Cohen Paleolimnology - The History and Evolution of Lake Systems (Hardcover, New)
Andrew S. Cohen
R5,765 Discovery Miles 57 650 Ships in 12 - 19 working days

This text, written by a leading researcher in the field, describes the origin and formation of lakes in order to give context to the question of how lacustrine deposits form. It explains the process of sedimentation in lakes and the chemistry of those deposits and describes how the age of lake deposits is determined. Additionally, this book shows how different groups of fossils are used in interpreting the paleontological record of lakes. In order to illustrate the more synthetic approaches to interpreting the history of lakes, the author also discusses such special topics as lake-level history, lake evolution, and the impact of environmental change on lakes.

Spawning Migration of the European Eel - Reproduction index, a useful tool for conservation management (Hardcover, 2009 ed.):... Spawning Migration of the European Eel - Reproduction index, a useful tool for conservation management (Hardcover, 2009 ed.)
Guido Van Den Thillart, Sylvie Dufour, J. Cliff Rankin
R5,682 Discovery Miles 56 820 Ships in 10 - 15 working days

Freshwater eels are almost infinitely improbable creatures. They spawn and die in the middle of the ocean, often associated with undersea mountains. Their tra- parent, leaf-like larvae move with ocean currents for months or years until they approach the mouths of freshwater rivers. Then they undergo a dramatic transf- mation in morphology, physiology and behavior. They move from their planktonic oceanic environment, migrate upstream and live for several years as apex fre- water predators. Then, almost impossibly, as they become sexually mature, they reverse their migration downstream to the ocean and back to spawning grounds to complete their life cycle. The dramatic changes in their life cycles are incredible. The efforts to unravel the details of their life history have been truly daunting. Much of the past research was the work of dedicated individuals who devoted their lifetime research to these fishes. Freshwater eels merit a separate chapter in almost any textbook dealing with ichthyology, marine biology or animal migration. We know a great deal about some aspects of the biology of freshwater eels. However, our understanding of their bi- ogy still resembles a work of art as much as a work of science. To some it appears like the sweeping brush strokes of a Japanese Zen landscape, to others it resembles the work of a French impressionist, and to still others it appears as magic realism.

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