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Related Experiment Video

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Protocol for Acute and Chronic Ecotoxicity Testing of the Turquoise Killifish Nothobranchius furzeri

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A classification framework for interspecific trade-offs in aquatic ecology.

Eric R B Smyth¹, D Andrew R Drake¹

¹Great Lakes Laboratory for Fisheries and Aquatic Sciences, Fisheries and Oceans Canada, Burlington, Ontario, Canada.

Conservation Biology : the Journal of the Society for Conservation Biology

|May 31, 2021

Summary

Wildlife managers face species trade-offs when objectives conflict. Understanding direct and indirect species interactions is key to identifying and resolving these conflicts in aquatic ecosystems.

Keywords:

conflict resolution consecuencias no deseadas control de especies invasoras decision-making fishery management invasive species control manejo de pesquerías resolución de conflictos toma de decisiones unintended consequences

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Area of Science:

Ecology
Wildlife Management
Conservation Biology

Background:

Multispecies wildlife management objectives can create conflicts, known as species trade-offs.
Effective management requires understanding species interactions and ecosystem dynamics.
Previous approaches often overlooked the complexity of interspecific relationships and ecosystem scales.

Purpose of the Study:

To review and synthesize the scope of interspecific trade-offs in freshwater and marine ecosystems.
To identify common reasons for failing to recognize these trade-offs.
To develop a classification framework for interspecific trade-offs in aquatic systems.

Main Methods:

Conducted a comprehensive literature review of interspecific trade-offs.
Analyzed common pitfalls in recognizing trade-offs, such as single-species management.
Developed a classification framework for trade-offs based on direct and indirect species interactions and management objectives.

Main Results:

Identified direct (e.g., predator-prey) and indirect (e.g., conflict-generating species) interspecific trade-offs.
Highlighted that conflicts can arise from opposing management goals for non-interacting species (nontarget effects).
Found that limited consideration of spatial/temporal scales and single-species focus hinder trade-off recognition.

Conclusions:

A classification framework aids managers in identifying the nature and scope of interspecific trade-offs.
Understanding trade-offs is crucial for avoiding undesirable outcomes in wildlife management.
Integrating decision-making tools like structured decision-making can improve aquatic ecosystem management.