University Of Tasmania
134699 - A mass-balanced ecosystem model for the Kerguelen Plateau.pdf (463.91 kB)
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A mass-balanced ecosystem model for the Kerguelen Plateau

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conference contribution
posted on 2023-05-23, 14:13 authored by Roshni SubramaniamRoshni Subramaniam, Pinkerton, MH, Jessica Melbourne-ThomasJessica Melbourne-Thomas, Stuart CorneyStuart Corney, Kerrie SwadlingKerrie Swadling, Pruvost, P
Ecosystem models are useful tools for making informed management decisions regarding the potential effects of environmental change and fishing activity on Southern Ocean ecosystems. Recent work has successfully updated an existing Ecopath model for the Kerguelen exclusive economic zone from an unbalanced to a balanced model state (where energy inputs equal outputs). This balanced model details food-web dynamics in the Kerguelen Island region using species biomass and diet information. In this paper we present this balanced model as well as an evaluation of food-web structure and function using tools found in Ecopath. Energy flows in the model suggest that the Kerguelen Island food web is smaller and more mature than other sub-Antarctic food webs and the impacts of direct and indirect interactions on functional groups highlighted the importance of cephalopods in the food web. This model is currently undergoing an expansion to include the entire northern region of the Kerguelen Plateau.


Publication title

Proceedings of the 2nd Kerguelen Plateau Symposium: marine ecosystem and fisheries


D Welsford, J Dell, and G Duhamel






Institute for Marine and Antarctic Studies


Australian Antarctic Division

Place of publication

Kingston, Tasmania

Event title

The Kerguelen Plateau: Marine Ecosystem and Fisheries

Event Venue

Hobart, Tasmania

Date of Event (Start Date)


Date of Event (End Date)


Rights statement

Copyright 2017 The Department of the Environment and Energy, Australian Antarctic Division

Repository Status

  • Open

Socio-economic Objectives

Wild caught fin fish (excl. tuna); Assessment and management of coastal and estuarine ecosystems