Effects of live and post-mortem shell structures of invasive Pacific oysters and native blue mussels on macrofauna and fish

  title={Effects of live and post-mortem shell structures of invasive Pacific oysters and native blue mussels on macrofauna and fish},
  author={Pia Norling and Mats Lindegarth and Susanne Lindegarth and {\AA}sa Strand},
  journal={Marine Ecology Progress Series},
Blue mussels Mytilus edulis and the invasive Pacific oyster Crassostrea gigas are both ecosystem engineering species which modify the environment, thus having large effects on associated species. With the introduction of the Pacific oyster, a new biogenic structure has been added to subtidal sediment habitats in Scandinavia. By conducting a field experiment, the effects of live and post-mortem shell structures of C. gigas and M. edulis on associated infauna, epiben- thic fauna and fish on the… 

Limited impact of an invasive oyster on intertidal assemblage structure and biodiversity: the importance of environmental context and functional equivalency with native species

Intertidal surveys carried out at 15 different sites in Europe indicated that, at low densities, C. gigas may be functionally equivalent to the declining native oyster in terms of biodiversity facilitation and aid in re-establishing benthic communities on shores where O. edulis has become extinct.

Disappearing Blue Mussels – Can Mesopredators Be Blamed?

As both the green crab and the goldsinny wrasse have been reported to increase in abundance, the resulting higher predation pressure on especially small blue mussels (recruits) may contribute to the mussel decline along these temperate rocky shores.

Fish Assemblages in Seagrass (Zostera marina L.) Meadows and Mussel Reefs (Mytilus edulis): Implications for Coastal Fisheries, Restoration and Marine Spatial Planning

Seagrass meadows and mussel reefs provide favorable habitats for many fish species, but few studies have compared the associated fish assemblages directly and examined the influence of environmental

Coexistence of Pacific oyster Crassostrea gigas (Thunberg, 1793) and blue mussels Mytilus edulis Linnaeus, 1758 on a sheltered intertidal bivalve bed?

The invasive Pacific oyster, Crassostrea gigas Thunberg, 1793 was introduced in Denmark for aquaculture in the 1970s and it is hypothesized that the presence of C. gigas has altered the spatial and temporal distribution of M. edulis by inducing a niche separation.

The Pacific Oyster ( Crassostrea gigas ) Invasion in Scandinavian Coastal Waters : Impact on Local Ecosystem Services 10

This chapter tracks the Pacific oyster on its way towards the North-eastern corner of its European distribution, predicts its future distribution, and discusses the implications for local ecosystems.

Enhancing multiple scales of seafloor biodiversity with mussel restoration

Restoration projects are underway internationally in response to global declines in shellfish beds. As diverse biological assemblages underpin a variety of ecosystem services, understanding broader

Increased spreading potential of the invasive Pacific oyster (Crassostrea gigas) at its northern distribution limit in Europe due to warmer climate

The study indicated increased dispersal and successful establishment at the outer edge of the species present distribution in the future and, hence, an increased risk to native species and habitats in temperate regions.



Physical and biological effects of introduced oysters on biodiversity in an intertidal boulder field.

Differences in assemblage structure were driven by changes in the establishment of several key species including Fucus vesiculosus and Littorina littorea, which were facilitated by oyster and the honeycomb worm Sabellaria alveolata, which was inhibited by oysters.


Assessment of the role of live oysters in providing habitat, community metrics of resident fishes and decapod crustaceans were compared and there was little evidence to suggest that any of the decapods or fishes present were specifically selecting habitat with living oysters present.

Habitat associations of estuarine species: Comparisons of intertidal mudflat, seagrass (Zostera marina), and oyster (Crassostrea gigas) habitats

The species composition of fish and decapods was more strongly related to location within the estuary than to habitat, andFish and decapod species composition responded on a larger landscape scale than invertebrate assemblages.

Mussel beds — amensalism or amelioration for intertidal fauna?

  • S. Dittmann
  • Environmental Science
    Helgoländer Meeresuntersuchungen
  • 2006
An amensalistic relationship was found between the suspension-feeding mussels and suspension- feeding infauna, while deposit-feeders were enhanced, and the presence of epibenthic microhabitats results in a variety of trophic groups co-occurring in a mussel bed.

Food resource, gametogenesis and growth of Mytilus edulis on the shore and in suspended culture: Killary Harbour, Ireland

  • P. RodhouseC. Roden T. Ryan
  • Environmental Science
    Journal of the Marine Biological Association of the United Kingdom
  • 1984
It is concluded thatWild mussels utilize a mix of phytoplankton and detritus as food during the summer and that large wild mussels can use detritu during the autumn and early winter for an increase in flesh weight and gametogenesis.