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Making marinas bivalve friendly for enhanced biodiversity outcomes


Adams, LW and Morris, RL and Hull, RB and Dempster, T and Strain, EMA, Making marinas bivalve friendly for enhanced biodiversity outcomes, Marine Pollution Bulletin, 169 Article 112464. ISSN 0025-326X (2021) [Refereed Article]

Copyright Statement

2021 Elsevier Ltd. All rights reserved

DOI: doi:10.1016/j.marpolbul.2021.112464


Natural coastlines are being replaced by artificial structures (pilings, pontoons, breakwaters), with negative environmental impacts, particularly in marinas. Ropes seeded with mussels (Mytilus galloprovincialis) were added to artificial structures in a marina, using aquaculture techniques, to reduce the colonisation of invasive taxa. After 6-months, droplines beneath pontoons had the highest seeded mussel survival and growth, richness of native and invasive taxa, and proportion of invasive to native taxa, compared with the other interventions. Mussel ropes on the intertidal structures (pilings and breakwaters) supported higher biomass of native taxa, whereas mussel ropes on subtidal structures (pontoons and breakwaters) had reduced biomass of invasive taxa, relative to the unseeded ropes. Droplines had the greater biomass of mussels, while mussel ropes placed under pontoons, and in subtidal gabion baskets limited the biomass but not the diversity of invasive species. Further study is required to determine whether these interventions can be upscaled to improve both the native biodiversity and functioning of marinas.

Item Details

Item Type:Refereed Article
Keywords:artificial structures, eco-engineering, biodiversity, invasive species, eco-engineering, piling, pontoon, bivalve
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Assessment and management of coastal and estuarine ecosystems
UTAS Author:Strain, EMA (Dr Beth Strain)
ID Code:144468
Year Published:2021
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2021-05-26
Last Modified:2021-10-28

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