Marine Mesocosms

Since some chemical processes in ecosystems are often less sensitive to the presence or absence of a particular biological species, and less variable than biological processes, one might expect that marine mesocosms are even better ...

Marine Mesocosms

Techniques developed for enclosing viable natural planktonic ecosystems pro vided the opportunity for prolonged and detailed investigation of dynamic events within the pelagic system of a known water body. Recent investigations into plankton ecology, using enclosure systems in dif ferent marine environments, are discussed in relation to the data obtained from the Nanaimo, British Columbia, Canada, plastic-sphere experiments of 1960 and 1962. Three types of modern enclosure experiments are recognized: floating systems within nutrient levels maintained or running down, and benthic attached systems. The review largely discusses results from the two kinds of floating systems. Processes at several trophic levels have been investigated in enclosures. This review attempts to draw together details from all experimental systems to emphasize the enclosures' contribution to our understanding of planktonic systems. Enclosures made it possible to examine primary production processes, particularly in relation to inorganic nutrient availability and water-column sta bility. Recent experiments have used the understanding of these processes as a management technique in maintaining different planktonic systems. Relation ships between primary and secondary trophic levels are not always easy to inter pret, since the growth of primary carnivore populations can often determine the survival of zooplankton populations. Nevertheless, the development of co horts of herbivorous zooplankton has been followed in several enclosures, yield ing useful information on development times and production rates. In enclosed systems it is thus possible to directly relate tertiary level production to inorganic nutrient input, and to calculate production rates and exchange efficiencies at several trophic levels.

More Books:

Marine Mesocosms
Language: en
Pages: 430
Authors: G.D. Grice, M.R. Reeve
Categories: Science
Type: BOOK - Published: 2012-12-06 - Publisher: Springer Science & Business Media

Techniques developed for enclosing viable natural planktonic ecosystems pro vided the opportunity for prolonged and detailed investigation of dynamic events within the pelagic system of a known water body. Recent investigations into plankton ecology, using enclosure systems in dif ferent marine environments, are discussed in relation to the data obtained
Marine Ecotoxicology
Language: en
Pages: 334
Authors: Julián Blasco, Peter M. Chapman, Olivia Campana, Miriam Hampel
Categories: Medical
Type: BOOK - Published: 2016-08-05 - Publisher: Academic Press

Marine Ecotoxicology: Current Knowledge and Future Issues is the first unified resource to cover issues related to contamination, responses, and testing techniques of saltwater from a toxicological perspective. With its unprecedented focus on marine environments and logical chapter progression, this book is useful to graduate students, ecotoxicologists, risk assessors, and
Marine Pollution
Language: en
Pages: 288
Authors: Christopher L. J. Frid, Bryony A. Caswell
Categories: Science
Type: BOOK - Published: 2017-10-06 - Publisher: Oxford University Press

As a society, we use more than 100,000 different industrial compounds to promote health and treat disease, to grow food and to access clean water. While technological developments have improved our lives, most of these compounds end up in our oceans where they threaten marine life and human health. The
Aquatic Mesocosm Studies in Ecological Risk Assessment
Language: en
Pages: 736
Authors: Robert L. Graney
Categories: Science
Type: BOOK - Published: 2020-10-25 - Publisher: CRC Press

A Special Publication of the Society of Environmental Toxicology and Chemistry (SETAC) Aquatic Mesocosm Studies in Ecological Risk Assessment discusses the methods currently used for conducting simulated field studies and provides a series of case histories in which mesocosm type studies have been used to assess the impact of pesticides
Encyclopedia of Ocean Sciences
Language: en
Pages: 4306
Authors: Robert L. Graney
Categories: Science
Type: BOOK - Published: 2019-04-12 - Publisher: Academic Press

The oceans cover 70% of the Earth’s surface, and are critical components of Earth’s climate system. This new edition of Encyclopedia of Ocean Sciences summarizes the breadth of knowledge about them, providing revised, up to date entries as well coverage of new topics in the field. New and expanded sections