EMERGY Analysis of Shrimp Mariculture in Ecuador

EMERGY Analysis of Shrimp Mariculture in Ecuador
Author: Howard T. Odum
Publisher:
Total Pages: 130
Release: 1991
Genre: Bioenergetics
ISBN:

Theory of maximum EMERGY designs; Systems of shrimp production and sale; Systems diagrams and their hierarchical organization; EMERGY analysis procedures; EMERGY benefit of alternatives; Optimal matching of environmental and economic inputs; EMERGY solutions to other questions; Report organization; Microcomputer simulation; Methods; Detailed energy systems diagram; Aggregated diagrams; EMERGY analysis table; EMERGY indices; Microcomputer simulation; Public policy questions; EMERGY benefit of alternatives; EMERGY change analysis; Uses of the EMERGY investment ratio; Sustainability; Significance of the EMERGY exchange ratio; National system of Ecuador; Energy systems diagrams; EMERGY analysis of annual flows; Overview indices for Ecuador; Different EMERGY in exported and imported services; National comparisons; Regional EMERGY investment ratios; Shrimp and international exchange; High EMERGY of currency of Ecuador in International exchange; EMERGY exchange with foreign sales of shrimp; EMERGY trade balance for ecuador; EMERGY feedback reinforcement of environmental work; Shrimp culture isolation from the local economy; Simulation of price effects on a renawable resource; Shrimp ecosystems of coastal Ecuador; Ecosystems supporting reproduction, recruitment, and growth of shrimp; EMERGY inputs to the coastal system of Ecuador; EMERGY inputs to the mangrove nursery areas; EMERGY evaluation of daule-peripa river diversion; Evaluation pelagic fishery landings; Evaluating shrimp trawl landings; Shrimp mariculture development; Energy diagram of shrimp pond system; EMERGY inputs and investment ratio of shrimp pond mariculture; Shrimp transformities and system efficiency; Pelagic fish meal supplements to shrimp ponds; Net EMERGY of shrimp from ponds; Regional EMERGY change accompanying pond development; Comparison of EMERGY benefit of alternatives; Optimum development for maximum benefit; Simulation model of shrimp production and sales; Simulation of benefits as a function of developed area; Using MAXSHRMP.BAS; Calibration of MAXSHRIMP; Simulation results; Effects of adding more shrimp ponds; Sources of hatchery post larvae; Data limitations; General recommendations for maximum success of economic development.

Planning and Management for Sustainable Coastal Aquaculture Development

Planning and Management for Sustainable Coastal Aquaculture Development
Author: IMO/FAO/UNESCO-IOC/WMO/WHO/IAEA/UN/UNEP Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection
Publisher: Food & Agriculture Org.
Total Pages: 112
Release: 2001
Genre: Aquacultural engineering
ISBN: 9789251046340

This report is based on a review of literature and experience relating to the planning and management of aquaculture development and its integration into coastal area management. It explores in detail how more planned and integrated approaches can be applied to aquaculture development. These approaches range from "enhanced sectorial" initiatives, to incorporation within comprehensive ICM programmes.

Coastal Marine Ecosystems of Latin America

Coastal Marine Ecosystems of Latin America
Author: U. Seeliger
Publisher: Springer Science & Business Media
Total Pages: 376
Release: 2013-03-14
Genre: Science
ISBN: 366204482X

Coastal and marine ecosystems, some severely degraded, other still pristine, control rich resources of inshore environments and coastal seas of Latin America's Pacific and Atlantic margins. Conflicts between the needs of the region's nations and diminishing revenues and environmental quality have induced awareness of coastal ecological problems and motivated financial support for restoration and management. The volume provides a competent review on the structure, processes and function of 22 important Latin American coastal marine ecosystems. Each contribution describes the environmental settings, biotic components and structure of the system, considers trophic processes and energy flow, evaluates the modifying influence of natural and human perturbations, and suggests management needs. Although the focus of the book is on basic ecological research, the results have application for coastal managers.

Mangroves and Aquaculture

Mangroves and Aquaculture
Author: Stuart E. Hamilton
Publisher: Springer
Total Pages: 211
Release: 2019-08-09
Genre: Science
ISBN: 3030222403

This book uses five decades of map data, air photos, and medium to high-resolution satellite imagery to track the expansions of aquaculture and the loss of both estuarine and mangrove land covers in Ecuador. The results are staggering. In some regions, Ecuador has lost almost 50% of its estuarine space and approximately 80% of its mangrove forest. The current estuarine land cover bears no resemblance to the historic estuarine land cover. The analysis is complete from 1968 to 2014. The analysis covers all the major estuaries of mainland Ecuador. The research expands beyond purely land cover into the land use of the estuaries and the implications of the land cover transitions. The author lived in Ecuador's estuarine environments for almost two years studying this area. During this time he conducted mapping workshops with local residents, conducted 100 interviews with local actors, conducted six group discussions with fisherfolk syndicates, conducted eight presentations, worked on a shrimp farm. He was employed by the Ministry of the Environment on a Prometeo fellowship for one-year researching estuarine health and worked on mangrove replanting projects in the estuaries. In addition to the remote sensing data, the author provides a contextual framework to the analysis. It is not just hard numbers that are presented, but a remote sensing analysis tied to local actors that tell a coherent almost 50 -year estuarine story at the national, provincial, and local scales The book is intended for researchers, academics, graduate students, NGOs, and government actors including those who work in development, environment, and policy implementation. It is suitable supplemental reading for students in courses related to the coastal zone, land use change, and remote sensing. The electronically supplementary material includes all the related data to underpin the analysis as well as all the resulting GIS files.

Responsible Marine Aquaculture

Responsible Marine Aquaculture
Author: Robert R. Stickney
Publisher: CABI
Total Pages: 414
Release: 2002-01-01
Genre: Technology & Engineering
ISBN: 9780851998565

With the expansion of the world aquaculture industry, there has been increasing concern over sustainability and environmental impact. This book addresses this topical issue, concentrating on marine aquaculture.

An International Perspective on Wetland Rehabilitation

An International Perspective on Wetland Rehabilitation
Author: W.J. Streever
Publisher: Springer Science & Business Media
Total Pages: 328
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 9401146837

Bill Streever, author of Bringing Back the Wetlands and numerous technical articles about wetland restoration and creation, worked for two years to bring together this collection of papers. Authors ranging from private landowners to government managers to scientists present regional overviews, case studies, and discussions of various issues. Regional overviews cover areas as small as the Commonwealth of the Northern Mariana Islands to areas as large as Australia and Africa. Case studies range from relatively small projects, such as rehabilitation of damage caused by wheel ruts in the high arctic, to much larger projects, such as attempts to rehabilitate thousands of hectares of Northern Territory wetlands in Australia. Seedbank ecology, economics, remote sensing, community involvement, the role of the wetland consulting industry, and other issues are discussed. In an effort to synthesize information from around the world, Joy Zedler presents a model that allows comparison of projects and may lead to better predictability of project outcomes. In An International Perspective on Wetland Rehabilitation, authors describe planting, engineered structures, prescribed flooding, excavation, and other rehabilitation methods, from Israel to New Zealand to the Netherlands and elsewhere. For the first time, one volume offers an impression of the magnitude and diversity of the field of wetland rehabilitation around the globe.

Proceedings of a Conference on Sustainability of Wetlands and Water Resources

Proceedings of a Conference on Sustainability of Wetlands and Water Resources
Author: Marjorie Holland
Publisher:
Total Pages: 204
Release: 2002
Genre: Water-supply
ISBN:

The conference focused on recent work in freshwater wetlands [both natural and constructed] with a view toward understanding wetland processes in a watershed context. Since humans have played important roles in watershed dynamics for years, attention was given to the human dimensions of wetland and watershed uses. Contributed sessions were organized on: biogeochemical cycling in wetlands; human health issues related to water; wetland restoration and reforestation; the role of wetlands in agricultural systems; wetlands and USA environmental law; chemical ecology and natural products from wetlands; water and wetlands in science education; and regional water strategies.

Environment and Livelihoods in Tropical Coastal Zones

Environment and Livelihoods in Tropical Coastal Zones
Author:
Publisher: CABI
Total Pages: 325
Release: 2006
Genre: Technology & Engineering
ISBN: 1845932188

This book focuses on the challenges people face in managing agricultural crops, aquaculture, fisheries and related ecosystems in areas of coastal zones in the tropics of Asia, Africa, Australia and South America. Challenges arise from conflicts in the use of natural resources among different stakeholders. Through many case studies, the book discusses the nature of these conflicts and identifies what is known and not known about how to manage them. Case studies include: · trade-offs between enhancing agricultural production and maintenance of rural livelihoods and aquatic biodiversity.· lessons learnt from the conversion of mangrove forests to shrimp farms.