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Enclosed Experimental Marine Ecosystems: A Review and Recommendations - A Contribution of the Scientific Committee on Oceanic Research Working Group 85

Enclosed Experimental Marine Ecosystems: A Review and Recommendations - A Contribution of the Scientific Committee on Oceanic Research Working Group 85

C. M. Lalli (Editor)

ISBN: 978-1-118-66368-4 March 2013 American Geophysical Union 218 Pages

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Description

Published by the American Geophysical Union as part of the Coastal and Estuarine Studies Series, Volume 37.

The application of mesocosms, defined in this report as artificial experimental enclosures ranging in size from 1 m3 to 10 m3, to address various problems in the marine sciences has been a relatively recent development. The application of the technology was dictated by the realization that many important ocean processes and interactions cannot be fully understood from observations in the natural environment or in smaller enclosures. Such studies involve, for example, determining the interactions between, and energy transfer from, one trophic level to another, the biogeochemical cycling of elements and compounds, etc. These and similar interactions and rate processes cannot normally be established in situations (nature) where the detection and quantification of rate processes are confused by advection and/or the inability to study the same populations over time. In the case of microcosms, mixed populations of primary producers, consumers, and carnivores cannot be maintained, in balance, for a sufficient length of time to determine normal interactions between the various components of these trophic levels.

1. Introduction 1

2. Different Types of Ecosystem Experiments
Li Guanguo  7

3. Marine Microcosms: Small-Scale Controlled Ecosystems
Pierre Lasserre  20

4. Pelagic Mesocosms: I. Food Chain Analysis
Masayuki Takahashi  61

5. Pelagic Mesocosms: II. Process Studies
U. Brockmann  81

6. Benthic Mesocosms: I. Basic Research in Soft-bottom Benthic Mesocosms
P. A. W. J. de Wilde  109

7. Benthic Mesocosms: II. Basic Research in Hard-bottom Benthic Mesocosms
Torgeir Bakke  122

8. Specific Application of Meso- and Macrocosms for Solving Problems in Fisheries Research
Victor 0iestad  136

9. Application of Mesocosms for Solving Problems in Pollution Research
Michael E. Q. Pilson  155


10. Baltic Sea Eutrophication: A Case Study using Experimental Ecosystems
Sigurd Schulz  169

11. Mesocosms: Statistical and Experimental Design Considerations
John C. Gamble  188

12. The Use of Mathematical Models in Conjunction with Mesocosm Ecosystem Research
T. R. Parsons  197

Subject Index 211