Estimating the potential fishery benefits from targeted habitat repair: a case study of school prawn (Metapenaeus macleayi) in the lower Clarence River estuary

Taylor, Matthew D., and Creighton, Colin (2018) Estimating the potential fishery benefits from targeted habitat repair: a case study of school prawn (Metapenaeus macleayi) in the lower Clarence River estuary. Wetlands, 38 (6). pp. 1199-1209.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website: https://doi.org/10.1007/s13157-018-1022-...
1


Abstract

Development around estuaries leads to degradation of tidal wetlands and alteration of tidal flows, which impacts on fishery productivity. Contemporary management seeks to lessen land-use impacts on aquatic environments and restore ecosystem services, and knowledge of potential benefits will inform investment and galvanize community action. We present a framework to estimate the potential benefits that may be derived from wetland repair, demonstrated through a case study for School Prawn (Metapenaeus macleayi) in Lake Wooloweyah, Clarence River estuary. Under a scenario of good School Prawn recruitment, habitat repair could yield a benefit of similar to 94kgha(-1) of subtidal creek habitat, equating to a gross value of around AUD876 ha(-1) and total output of around AUD5,175ha(-1) annually. Upscaling these calculations to reflect a scenario restoring 27.6ha of subtidal channels at the mouth of Lake Wooloweyah would contribute an expected annual yield of 2569kg in School Prawn harvest. These estimates are conservative, not accounting for the economic outcomes derived from other species directly utilising the additional habitat, or the outwelling of additional saltmarsh-derived productivity. Simple models such as this are useful for assessing the potential benefits of habitat repair, and supporting investment of resources into on-ground works.

Item ID: 56881
Item Type: Article (Research - C1)
ISSN: 1943-6246
Keywords: Habitat rehabilitation, Habitat restoration, Recruitment, Fisheries productivity, Salt marsh, Mangrove
Copyright Information: © Society of Wetland Scientists 2018.
Funders: National Environmental Science Programme (NESP) Marine Biodiversity Hub
Date Deposited: 16 Jan 2019 07:40
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070402 Aquatic Ecosystem Studies and Stock Assessment @ 50%
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050211 Wildlife and Habitat Management @ 50%
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page