Understanding Ecosystem-Based Fisheries Management
Ecosystem-based fisheries management is a holistic approach that recognizes all the interactions within an ecosystem rather than considering a single species or issue in isolation.

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Part of our mission is to steward healthy and resilient coastal and marine ecosystems that provide valued resources to our nation.
Coastal and marine ecosystems involve complex interactions between organisms, their environment, and human activities. Ecosystem components interact through dynamic chemical, physical, and biological processes that influence organism populations and ecosystem sustainability.
These systems are ever changing and can be vulnerable to natural and human-induced stressors such as extreme weather, fishing pressure, pollution, and habitat loss.
We study the entire ecosystem to manage our diverse marine resources more comprehensively with regional fishery management councils and other partners. This enables us to better recognize and address changing conditions and facilitate tradeoff decisions.
Human activities, such as development, are a primary cause for coastal wetland loss. Studies have found that this loss is substantial—about seven football fields per hour! Wetlands filter waters that drain into the ocean, reduce the damaging effects of hurricanes and storms on our coastal communities, help our shorelines adapt to climate change, and play an important role in the productivity of commercial and recreational fisheries.
We work to maintain ecosystems in a healthy, productive, and resilient condition so they can provide the services humans want and need. Fishery managers and scientists frequently reference three levels of ecosystem management in relation to marine fisheries: ecosystem based management, ecosystem based fisheries management, and ecosystem approach to fisheries management.
Phytoplankton are the foundation of the marine food web. They feed lots of other marine life, from microscopic organisms to huge whales. By studying the more than 5,000 species of phytoplankton, we are able to evaluate ecosystem health and learn about any changes in these ecosystems.
The physical boundaries of regional ecosystems are based on four ecological criteria: bathymetry, hydrography, productivity, and trophic relationships. Based on these criteria, there are eight distinct regional ecosystems around the coastal margins of United States.
We are working to adopt an ecosystem-based approach for managing sustainable fisheries. Fishing is only one variable that affects a species' population. Interactions with other species, environmental changes, pollution, and other stresses on habitat and water quality can affect fish populations. To more effectively assess the health of any given fishery and to determine the best way to maintain it, fishery managers should take ecosystem considerations into account.
We use integrated ecosystem assessments as a science-based decision-support process that provides the analytical framework to implement ecosystem-based approaches to manage our marine resources, including fisheries and protected resources. Integrated ecosystem assessments synthesize data on physical, chemical, ecological, and human processes within ecosystems to provide the sound interdisciplinary ecosystem-based science, trade-off evaluation, and management advice required to ensure our nation’s marine resources are sustainable and deliver a broad spectrum of benefits and services.
Ecosystem-based fisheries management is a holistic approach that recognizes all the interactions within an ecosystem rather than considering a single species or issue in isolation.
The physical boundaries of regional ecosystems are based on four ecological criteria: bathymetry, hydrography, productivity, and trophic relationships. Based on these criteria, there are eight distinct regional ecosystems around the coastal margins of the United States:
Ecosystem-based fishery management is a cornerstone of our efforts to sustainably manage the nation’s marine fisheries. It complements and builds off-of traditional single species fishery management. This approach considers social, economic, and ecological trade-offs across multiple fisheries and habitats. Making sound decisions depends on access to reliable, accurate, and actionable ecological, social, and economic information, tools, approaches, and models.
Ecosystem-based fishery management helps NOAA Fisheries and our regional fishery management council partners meet sustainable fishery management goals under multiple mandates such as:
The Ecosystem Based Fishery Management Policy and Road Map describe how NOAA Fisheries implements ecosystem based fisheries management based on six guiding principles:
NOAA Fisheries has developed ecosystem-based fisheries management implementation plans. These plans complement work already underway by regional fishery management councils through fishery management plans and fishery ecosystem plans.
Managing our nation’s marine resources depends on coordinated scientific effort to understand and provide advice regarding the fundamental structures, functions, processes, and natural and human interactions that shape marine ecosystems and the services they provide. To accomplish this objective, our science programs include the following key components:
We use integrated ecosystem assessments as a science-based decision-support process that provides the analytical framework to implement ecosystem-based approaches to manage our marine resources, including fisheries and protected resources. Integrated ecosystem assessments synthesize data on physical, chemical, ecological, and human processes within ecosystems to provide the sound interdisciplinary ecosystem-based science, trade-off evaluation, and management advice required to ensure our nation’s marine resources are sustainable and deliver a broad spectrum of benefits and services.
Learn more about integrated ecosystem assessments
A research program that examine the relationships among species and their environment. Habitat science and assessments provide essential scientific advice to resource managers on the current status and future trends of marine habitats utilized by living marine resources.
Learn more about habitat science and assessments
Science activities include tracking current conditions, providing early warnings and forecasts, understanding the mechanisms of climate impacts, and projecting future conditions all to evaluate possible options for fisheries management and protected resources conservation in a changing world.
Learn more about climate and fisheries
This is a research program aimed at improving our understanding of environmental impacts on living marine resources. It applies that information to improve stock assessments, ecosystem assessments, and ecosystem-based approaches to fisheries management.
Learn more about Fisheries and the Environment
Oceanic plankton constitute the largest reservoir of biomass in the world's oceans and play a significant role in the transfer of energy and materials within the oceanic ecosystems. Gaining access and insight into world's collection of historical and ongoing plankton monitoring data is essential for evaluating ecosystem health and for detecting changes in these ecosystems.
Learn more about planktonic ecosystems data and analytical products
This lab conducts systematic, taxonomic, and life history research on marine organisms of economic and ecological value, thereby contributing to the understanding of marine biodiversity within marine ecosystems.
Learn more about our National Systematics Laboratory
NOAA is part of a global partnership implementing ecosystem-based approaches to assess, manage, recover, and sustain marine resources within large marine ecosystems. We developed the large marine ecosystem approach and the ecological criteria used to delineate the 66 large marine ecosystems worldwide more than 30 years ago. Today, we work with the Global Environment Facility, United Nations Agencies, non-governmental organizations, and country ministries using the approach to develop and execute regional projects within large marine ecosystems to promote ecosystem-based management across national boundaries.
Learn more about large marine ecosystems
The research modeling program examine ecosystem modeling tools, coupled with input from stakeholders, to explore the tradeoffs inherent in natural resource management decisions. These models provide essential data for making well informed decisions.
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We study marine ecosystems. Our research supports sustainable management and conservation of Alaska marine species.
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