The epibiotic community associated to the European flat oyster: a function of the state of development of the reef DOI Creative Commons
Abel Zempléni, Stéphane Pouvreau, Nicolas Desroy

et al.

Restoration Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

When healthy, Ostrea edulis populations are capable of creating remarkable biogenic reefs, providing a unique habitat for marine biodiversity. At present, the biotic assemblages associated with flat oysters remain poorly defined. This study aims to analyze biodiversity reef's development stage by focusing on its epibiotic community. The studied oyster population is an old remnant bed located in Bay Brest, which has been undergoing restoration 5 years. communities (>500 μm) scattered individual living ( n = 10) and dead 9) oysters, as well aggregates from ground restored reef 3) were compared. 137 species found, among 22 specific 55 reefs. Although samples formed distinct group SIMPER analysis, Shannon's (between 2.25 2.52) Simpson's 0.84 0.86) diversity indices remained constant each stage. Piélou's 0.71 0.80) significantly lower displaying less evenly distributed Mean abundance richness per sample higher aggregated structures. However, when standardized centimeter square shell surface, both parameters oysters. Therefore, while reefs may support at larger spatial scale, smaller single have unit area shell. Seemingly, despite poor state their populations, still hosting important macrofaunal

Language: Английский

Records reveal the vast historical extent of European oyster reef ecosystems DOI Creative Commons
Ruth H. Thurstan, Hannah McCormick, Joanne Preston

et al.

Nature Sustainability, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 3, 2024

Language: Английский

Citations

15
Ecological reef restoration: consumptive and nonconsumptive interactions among common North Sea predators and European oysters DOI Creative Commons
Julius A. Ellrich,

Clemens Kozian-Fleck,

Markus Brand

et al.

Frontiers in Environmental Science, Journal Year: 2025, Volume and Issue: 13

Published: Jan. 22, 2025

Oyster reefs are biodiversity hotspots with multiple ecosystem functions and services that declining worldwide. Historic populations of European oysters ( Ostrea edulis ) have been decimated by overfishing nowadays considered functionally extinct in waters. To halt reverse the associated loss, oyster reef restoration was implemented into marine conservation measures several projects started across Europe. Following ecological standards, it is crucial to identify reef-associated predators predator-prey interactions influencing recovery as can control prey populations. Therefore, this study examined consumptive nonconsumptive among common North Sea predators, brown crabs Cancer pagurus lobsters Homarus gammarus ), on Helgoland island (German Bight, Sea) for first time. Field surveys monitorings offshore pilot experimental seafloor areas showed (i) crabs, co-occur these subtidal environments (ii) interact each other. Manipulative experiments indicated (iii, iv) both consume oysters, (v) medium-sized large safe from (vi) relatively lobsters. They also found (vii) presence mussels Mytilus spp.), an alternative more profitable prey, (viii) formation larger heavier clumps, difficult handle, reduce predation oysters. Furthermore, they (ix) crab conspecifics (x) natural abundances nonconsumptively limit consumption through intimidation mediated (xi) crab- (xii) lobster-released waterborne predator cues detected which indicates naturally underlying mechanisms regulating limiting Thereby, provides fundamental knowledge essential understand facilitate restoration.

Language: Английский

Citations

0
Restrictions on UK aquaculture of Pacific oyster (Magallana gigas) will not prevent naturalised spread but suppress ecological and economic benefits to coastal communities DOI Creative Commons

Alexander Shakspeare,

Tom C. Cameron, M. Steinke

et al.

Published: March 29, 2024

The Pacific oyster (Magallana (Crassostrea) gigas) was introduced to UK waters in the mid 20th century and currently accounts for over 95% of fishery landings. Recently however, its non native origin has led policy makers consider a limit on aquaculture operations. M. gigas is effectively naturalised UK, with multiple records populations originating from local sources, including outside UK. Neighbouring countries, most notably France, treat as species. status simplifies regulation enables provide large quantities nutritious sustainable food, supporting employment coastal communities. Further this, alongside potential detrimental effects this species could have natural habitats, presence can substantial positive environmental impacts, example, improving water quality by providing living breakwaters contemporary protection schemes. Our review suggests that efforts reduce spread England are unlikely desired long-term effect will fundamentally fail due introductions Scotland larval connectivity throughout southern North Sea. We recommend should be updated reflect socioeconomic benefits oysters shellfish open utility provision nature-based solutions adaption sea-level rise. Additional location-specific management interventions focus suitable mitigation sensitive sites or slow spreading events case-by-case basis.

Language: Английский

Citations

1
Genome‐Wide Population Structure in a Marine Keystone Species, the European Flat Oyster (Ostrea edulis) DOI Creative Commons
Homère J. Alves Monteiro, Dorte Bekkevold, George Pacheco

et al.

Molecular Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 12, 2024

ABSTRACT Ostrea edulis, the European flat oyster, was once a widespread economically and ecologically important marine species, but has suffered dramatic declines over past two centuries. Consequently, there been surge in restoration efforts, many of which focus on restocking as conservation measure. In this study, we used whole‐genome sequencing (WGS) data to investigate population structure, demographic history, patterns local adaptation O. edulis across its natural distribution with increased sampling densities at Scandinavian localities. Results revealed seven distinct genetic clusters, including previously undescribed complex structure Norway, evidence for introgression between clusters Scandinavia. We detected large structural variants (SVs) three pseudo‐chromosomes. These megabase long regions were characterised by strong linkage disequilibrium clear geographical differentiation, suggestive chromosomal inversions potentially associated adaptation. The results indicated that genomic traces translocations non‐native still present some individuals, overall, found limited major impacts scale contemporary structure. Our findings highlight importance considering signatures selection design effective strategies preserve restore wild native oyster populations, provide direct knowledge safeguarding sustainable mitigation actions species.

Language: Английский

Citations

1
The epibiotic community associated to the European flat oyster: a function of the state of development of the reef DOI Creative Commons
Abel Zempléni, Stéphane Pouvreau, Nicolas Desroy

et al.

Restoration Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

When healthy, Ostrea edulis populations are capable of creating remarkable biogenic reefs, providing a unique habitat for marine biodiversity. At present, the biotic assemblages associated with flat oysters remain poorly defined. This study aims to analyze biodiversity reef's development stage by focusing on its epibiotic community. The studied oyster population is an old remnant bed located in Bay Brest, which has been undergoing restoration 5 years. communities (>500 μm) scattered individual living ( n = 10) and dead 9) oysters, as well aggregates from ground restored reef 3) were compared. 137 species found, among 22 specific 55 reefs. Although samples formed distinct group SIMPER analysis, Shannon's (between 2.25 2.52) Simpson's 0.84 0.86) diversity indices remained constant each stage. Piélou's 0.71 0.80) significantly lower displaying less evenly distributed Mean abundance richness per sample higher aggregated structures. However, when standardized centimeter square shell surface, both parameters oysters. Therefore, while reefs may support at larger spatial scale, smaller single have unit area shell. Seemingly, despite poor state their populations, still hosting important macrofaunal

Language: Английский

Citations

0