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The Barnacle Balanus improvisus as a Marine Model - Culturing and Gene Expression

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Improving Marine Ecosystem Models with Biochemical Tracers.

Heidi R Pethybridge¹, C Anela Choy^2,3, Jeffrey J Polovina⁴

¹Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, Tasmania 7000, Australia; email: heidi.pethybridge@csiro.au , beth.fulton@csiro.au.

Annual Review of Marine Science

|January 4, 2018

Summary

This summary is machine-generated.

Biochemical tracers offer valuable data for marine ecosystem models, improving our understanding of food webs and predator-prey dynamics. Integrating these advanced techniques enhances the accuracy of marine resource management strategies.

Keywords:

biomarkers fatty acids food webs model assessment stable isotopes trace metals trophic ecology trophodynamics

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Area of Science:

Marine ecology
Ecosystem modeling
Biochemical analysis

Background:

Ecosystem models are crucial for marine resource management.
Traditional methods like stomach content analysis are being complemented by biochemical tracer techniques.
Advances in analytical and statistical methods are expanding the use of biochemical tracers.

Purpose of the Study:

To explore trophic information needs for ecosystem models (species, individual, size-based).
To match these needs with commonly used biochemical tracers (stable isotopes, fatty acids, trace elements).
To highlight the potential of biochemical tracers in understanding food web dynamics.

Main Methods:

Review of ecosystem model frameworks and their data requirements.
Assessment of commonly used biochemical tracers and their applications.
Identification of quantitative parameters derived from biochemical tracers.

Main Results:

Biochemical tracers provide key data on diet composition, niche width, and trophic position.
These tracers offer insights into food web spatial and temporal variability.
They aid in characterizing basal and microbial food web components.

Conclusions:

Incorporating biochemical tracer data significantly improves the empirical robustness of ecosystem models.
Challenges in data integration (scale, type mismatches) can be addressed through knowledge exchange and numerical approaches.
Biochemical tracers are essential for advancing marine ecosystem modeling and management.