Soundscape enrichment enhances recruitment and habitat building on new oyster reef restorations

Journal of Applied Ecology, Год журнала: 2022, Номер 60(1), С. 111 - 120

Опубликована: Окт. 25, 2022

Abstract Marine soundscapes provide important navigational cues to dispersing larvae in search of suitable habitat. Yet, widespread habitat loss has degraded marine and their functional role recruitment. Habitat restoration efforts can substrate for regeneration, such as constructing reefs facilitate recruitment growth by oysters, but typically occur where are is limited. Enhancing on newly constructed using speaker technology may ensure sufficient establish a trajectory recovery the desired Across two largest oyster reef restorations Australia, we deployed low‐cost speakers at four sites three times throughout season test whether soundscape enrichment could boost formation oysters. In presence absence playback, compared rates settlement panels across space time, cover three‐dimensional building boulder reefs. On restorations, playback significantly increased 8 10 an average (±1 SE) 5.1 ± 1.9 (5281 1384 more per m 2 ), much 18 times. boulders atop reefs, goal oysters form habitat, surface area covered after 5 months did not differ between control treatments. However, appeared influence earlier resulting large that formed 4.3 1.2 relative nonspeaker controls. Synthesis applications . Our results show enrich new recruitment, larger restorations. accelerating these vertical forms, which ecological functions motivate efforts, early application help steer succession recovery, potentially reducing substantial cost ongoing intervention.

Язык: Английский

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Extending conservation of coastal and oyster reef restoration for First Nations cultural revitalization

Conservation Biology, Год журнала: 2023, Номер 37(6)

Опубликована: Июль 25, 2023

Restoring lost ecosystems to return their ecological functions, economic, and social-cultural benefits communities is a rapidly expanding conservation concern (Gillies et al., 2017; McAfee & Connell, 2020; McAffee 2021, 2022a, b). Coastal oyster reef restoration aims services large beds of shellfish that were historically overharvested following colonization, particularly in Australia the United States (Beck 2011; 2021). Although many projects rightly praise social (McAfee b), these are still viewed largely through Western lens. Too often programs lack proper consideration First Nations peoples who have lived on Sea Country (i.e., term used describe coastal marine environments where Indigenous cultural rights, obligations, authority, biocultural systems apply [Rist 2019]) for thousands generations whose cultures, generational knowledge, lifeways been directly affected by historic loss reefs. For generations, across world managed resources reefs sustainable manner with traditional knowledge (TEK) culturally mediated stewardship (Reeder-Myers 2022). Ultimately, colonization has prevented transfer TEK people's (Eckert 2018; Fischer 2022 Nations, 2007), affecting current future state We argue needs extend beyond bolster revitalization outcomes Kittinger 2016). al. (2022a) outline blueprint fast-track successful Australia. They highlight importance gathering contemporary perspectives restoration. we welcome this acknowledgment, it equally important consider enormous opportunity research offers revitalize culture improve health well-being around globe Hill 2020, In projects, Nations’ engagement absent. Generally, emphasis Reeves 2020), there brief mention (Howie Bishop, 2021; 2022b) value TEK, consultation well-intentioned but too 2022a). These consultations do not provide sufficient time foster meaningful or adequately information necessary give free, prior, informed consent (Yunupingu Muller, 2009). Instead, should go create sustained peoples. Various guidelines principles respectful intellectual property rights data sovereignty readily available, such as Declaration Rights (United Centre World Studies (2023), Our Knowledge, Way (specific Australia) (Woodward ensure partnerships grounded respect, relevance, reciprocity, responsibility (Kirkness Barnhardt, 1991). There several advantages community at all stages (before, during, after). First, creates space needed embed values metrics success from beginning project rather than retrospectively (Clark al, 2022b). Second, clearly defining sociocultural more likely achieve acceptable outcomes. Third, direct involvement enables greater understanding threats empowers communities’ environmental (Kittinger 2016; Appendix S1). Perhaps most importantly an retention knowledges, beliefs, cultures self-determination, economic empowerment, capacity building (Alkassab, 2020a; Eckert 2007). Despite tremendous resilience face plethora continued external pressures, report disconnect 2018). Concerns exist about disconnection youth practices languages (Erkert uniquely positioned revive peoples, However, problems remain concerning how this. manage lag significantly behind Land 2020b; Dale 2022; Rist 2019). To negate existence mare nullius (the equivalent terra nullius), cogovernance comanagement between owners scientists needed. The effective must privilege (including creation, implementation, decision-making, monitoring) (Johannes, 2002; Thornton Maciejewski Scheer, 2012). Importantly, may also build already establishing creation protected areas (Rist 2019), ranger (Appendix If efforts maximize returns people, be established incorporate broader set goals include addition scientific objectives. Following example (e.g., Girringun; Zurba 2012), result relentless leadership collaboration process, embolden people assert authority over leading 2019; 2012) connections can With involved occurring Country, will better place-based (Wickham 2022), which generations. Critically, without weaves together western systems, foregoing connect management consequently invigorate efforts, even allocated frames This approach isolated alone; Sky Country. thank reviewers comments manuscript feedback, improved article. Open access publishing facilitated University Sydney, part Wiley - Sydney agreement via Council Australian Librarians. Please note: publisher responsible content functionality any supporting supplied authors. Any queries (other missing content) directed corresponding author

Язык: Английский

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Assessing the Efficacy of a Bouchot-Style Shellfish Reef as a Restoration Option in a Temperate Estuary

Journal of Marine Science and Engineering, Год журнала: 2024, Номер 12(1), С. 87 - 87

Опубликована: Янв. 1, 2024

Shellfish reefs around the world have become degraded, and recent efforts focused on restoring these valuable habitats. This study is first to assess efficacy of a bouchot-style reef, where mussels were seeded onto wooden stakes deployed in hypereutrophic estuary Australia. While >60% translocated survived one month, after ten months, only 2% remained alive, with this mortality being accompanied, at least initially, by declining body condition. Mussel survival, growth, condition recruitment greater top section stake, implying that distance from substrate was important. More fish species inhabited (31) than unstructured control sites (17). Reefs also colonised range invertebrate species, including 11 native six non-indigenous species. However, number individuals declined 4495 14 December 2019 35 representing 4 March 2021, likely due hypoxic bottom water conditions following unseasonal rainfall. Although unable sustain other invertebrates over sequential years, approach has potential be successful if shallow or intertidal zones, which are largely exempt biotic abiotic stressors characteristic deeper waters microtidal estuaries.

Язык: Английский

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European Native Oyster Reef Ecosystems Are Universally Collapsed

Conservation Letters, Год журнала: 2024, Номер unknown

Опубликована: Дек. 4, 2024

ABSTRACT Oyster reefs are often referred to as the temperate functional equivalent of coral reefs. Yet evidence for this analogy was lacking European native species Ostrea edulis . Historical data provide a unique opportunity develop robust definition ecosystem type, confirm that O. large‐scale biogenic reef builders, and assess its current conservation status. Today, occur scattered individuals or, rarely, dense clumps over few m 2 historically, ecosystems persisted at large scales (several km ), with individual within present scale several hectares. Using IUCN Red List Ecosystems Framework, we conclude oyster type is collapsed under three five criteria (A: reduction in geographic distribution, B: restricted range, D: disruption biotic processes interactions). Criterion C (environmental degradation) deficient, E (quantitative risk analysis) not completed already deemed collapsed. Our assessment has important implications policy action, highlighting habitat definitions on which policies currently based reflect highly shifted baseline, restoration efforts falls far short what necessary recovery.

Язык: Английский

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Community Engagement for Novel Ecosystem Restoration and Assisted Adaptation Interventions: Observations and Lessons from the Australian Reef Restoration and Adaptation Program

Society & Natural Resources, Год журнала: 2025, Номер unknown, С. 1 - 20

Опубликована: Фев. 10, 2025

Язык: Английский

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Shell Death and Density Influences Habitat Use of Intertidal Pinnid (Pinna bicolor) Ecosystems

Estuaries and Coasts, Год журнала: 2025, Номер 48(4)

Опубликована: Апрель 23, 2025

Язык: Английский

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Recovering kelp forests using newly constructed oyster reef restorations: adapting a kelp transplant method

Restoration Ecology, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Transplanting adult kelp is one of several key methods for kick‐starting the restoration forests. This study explores efficacy and obstacles adapting a transplant method developed Ecklonia radiata , habitat‐forming on temperate coastlines across Australia. Specifically, we assessed whether attaching to concrete structures could be adapted establish forests boulder reefs that were constructed restore oyster reefs; an strategy increasingly used worldwide. Adult attached reef boulders using recycled rubber straps positioned two restorations with distinct environmental structural conditions. Reef selected based their size shape such they easily moved secured by individual diver. After 10–15 months (depending site), survival, recruitment juvenile kelp, percentage cover competitive turf algae. We found survival was highly variable (0–100%) site‐dependent, particularly low at sites higher hydrodynamic energy. Kelp site dependent, high (up 46 sporophytes/m 2 ) cohabited oysters, no in absence. Turf varied from 5 100%, reduction related increased recruitment. shows genuine promise rapidly establishing small patches reefs, though factors as wave exposure must carefully considered.

Язык: Английский

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Can Ecosystem Transformations by Non-Indigenous Mussel Introductions Inform Shellfish Reef Restoration?

Journal of Marine Science and Engineering, Год журнала: 2025, Номер 13(3), С. 441 - 441

Опубликована: Фев. 26, 2025

Shellfish reefs were once common features in temperate coastal waters and estuaries. However, anthropogenic impacts have resulted significant declines these ecosystems globally. Whilst a growing body of scientific literature restoration projects demonstrated the success using oysters, at both local ecosystem-wide scales, initiatives mussels are relatively new. Due to lack long-term data on ecological impact restored mussel reefs, information assist practitioners identifying potential positive negative outcomes is limited. introductions occurred every continent, detailed documentation exists their ecosystems. Such thus invaluable as studies can contribute knowledge predicting ecosystem changes following introductions. Through compiling derived from 318 published articles, unplanned found impacts, context- species-specific. In eutrophic water bodies, typically considered positive, particularly shallow-water benthic communities. It was also found, however, that reduce zooplankton biomass, native occasionally implicated increasing cyanobacteria concentrations. Despite instances, this review presented multiple lines evidence introductions, when undertaken intentionally suitable locations, would considerable scale.

Язык: Английский

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Settlement and tidal zonation patterns of closely related oysters within the genus Saccostrea in a subtropical Australian estuary—implications for restoration

Restoration Ecology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

Oyster reefs are considered functionally extinct in many global regions, and restoration efforts accelerating. Currently, on Australia's eastern coast is focused the Sydney rock oyster ( Saccostrea glomerata ); however, multiple species of found across this region. To understand intertidal zonation patterns co‐occurring species, we surveyed wild assemblages adult oysters at different elevations subtropical Noosa River estuary using molecular methods for identification. We then conducted an gardening experiment three tidal to assess spat recruitment determine whether a viable method seeding shell restoration. Adult S. were more abundant upper zone, whereas adults related (but as yet unnamed) lineage G almost exclusively lower zone. Spat was highest zone lowest subtidal indicating that targeting may be unsuccessful concluded likely reef‐building; programs will rely situ until knowledge relating spawning triggers can inform reliable hatchery production. Furthermore, show when systems not limited. This useful multispecies tropics, where there often morphologically indistinguishable reef‐building providing benefits far outweigh those single‐species approaches.

Язык: Английский

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Characterising tropical oyster reefs: invertebrate-environment associations and a newly documented reef building species

Marine Environmental Research, Год журнала: 2025, Номер unknown, С. 107136 - 107136

Опубликована: Апрель 1, 2025

Язык: Английский

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