Forecasting the economic impacts of two biofouling invaders on aquaculture production of green-lipped mussels Perna canaliculus in New Zealand

Soliman, Tarek; Inglis, Graeme J.

doi:10.3354/aei00249

Cited by 27 publications

(25 citation statements)

References 42 publications

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“…For example, based on impacts to yield and seed-stock supply, fouling within greenlipped mussel farms by M. galloprovincialis was estimated to cost the New Zealand industry US$16.4 million per year, representing 10% of the industry's value . In the same region, the direct and combined economic impacts of two key biofoulers (the tunicate Styela clava and the polychaete Sabella spallanzanii) were estimated at NZ$26.4 million over a 24-year period (the timeframe at which models predict total farm infestation would occur [Soliman and Inglis 2018]). Similar estimates from around the world (eg Adams et al 2011) mean that biofouling prevention and treatment are critical areas of research and that suitable AF methods are pertinent to efficient production within the shellfish industry.…”

Section: Farm Productivitymentioning

confidence: 99%

Biofouling in marine aquaculture: a review of recent research and developments

et al. 2019

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Biofouling in marine aquaculture is one of the main barriers to efficient and sustainable production. Owing to the growth of aquaculture globally, it is pertinent to update previous reviews to inform management and guide future research. Here, the authors highlight recent research and developments on the impacts, prevention and control of biofouling in shellfish, finfish and seaweed aquaculture, and the significant gaps that still exist in aquaculturalists' capacity to manage it. Antifouling methods are being explored and developed; these are centred on harnessing naturally occurring antifouling properties, culturing fouling-resistant genotypes, and improving farming strategies by adopting more sensitive and informative monitoring and modelling capabilities together with novel cleaning equipment. While no simple, quick-fix solutions to biofouling management in existing aquaculture industry situations have been developed, the expectation is that effective methods are likely to evolve as aquaculture develops into emerging culture scenarios, which will undoubtedly influence the path for future solutions. ARTICLE HISTORY

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Section: Farm Productivitymentioning

confidence: 99%

Biofouling in marine aquaculture: a review of recent research and developments

et al. 2019

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“…marinebiosecurity.org.nz). Both these non-indigenous species present significant ecological, economic, and societal values risk to New Zealand (e.g., Soliman and Inglis 2018), and are part of a suite of non-indigenous species subject to targeted surveillance in 11 major New Zealand ports/marinas within the national Marine High Risk Site Surveillance (MHRSS) programme (Inglis et al 2006;Woods et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Considerations for incorporating real-time PCR assays into routine marine biosecurity surveillance programmes: a case study targeting the Mediterranean fanworm (Sabella spallanzanii) and club tunicate (Styela clava)

Wood

Pochon

Ming

et al. 2019

Genome

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Molecular techniques may provide effective tools to enhance marine biosecurity surveillance. Prior to routine implementation, evidence-based consideration of their benefits and limitations is needed. In this study, we assessed the efficiency and practicality of visual diver surveys and real-time PCR assays (targeting DNA and RNA) for detecting two marine invasive species whose infestation levels varied between species and location: Sabella spallanzanii and Styela clava. Filtered water samples (n = 171) were collected in parallel with dive surveys at two locations as part of the New Zealand Marine High Risk Site Surveillance programme: Nelson Harbour (27 sites) and Waitemata Harbour (30 sites). Diver surveys resulted in a greater number of detections compared to real-time PCR: S. clava – 21 versus 5 sites in Nelson, 6 versus 1 in Auckland; S. spallanzanii – 18 versus 10 in Auckland, no detections in Nelson. Occupancy modelling derived detection probabilities for the real-time PCR for S. clava were low (14%), compared to S. spallanzanii (66%). This could be related to abundances, or species-specific differences in DNA shedding. Only one RNA sample was positive, suggesting that most detections were from extracellular DNA or non-viable fragments. While molecular methods cannot yet replace visual observations, this study shows they provide useful complementary information.

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“…Given the potential cost of ongoing management over long periods, there is even greater incentive for sustained eradication efforts of bio-engineering introduced species at the early stages of incursion. Sabella has enormous potential for economic impacts to the aquaculture industry 65 , and our study suggests that the ecological impacts may be equally severe.…”

Section: Discussionmentioning

confidence: 80%

Invasive ecosystem engineers threaten benthic nitrogen cycling by altering native infaunal and biofouling communities

Tait

Lohrer

Townsend

et al. 2020

Sci Rep

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Predicting the effects of invasive ecosystem engineering species in new bioregions has proved elusive.In part this is because separating biological effects from purely physical mechanisms has been little studied and yet could help predict potentially damaging bioinvasions. Here we tested the effects of a large bio-engineering fanworm Sabella spallanzanii (Sabella) versus worm-like structures (mimics) on gas and nutrient fluxes in a marine soft bottom sediment. Experimental plots of sediment in Hauraki Gulf (New Zealand) were used to test the hypothesis that ecosystem engineers negatively influence benthic ecosystem function through autogenic mechanisms, facilitating activity by biofouling organisms and competitive exclusion of native infauna. Enhanced physical structure associated with Sabella and mimics increased nitrogen fluxes, community metabolism and reduced denitrification from 23 μmol m −2 h −1 to zero at densities greater than 25 m 2 . Sabella plots on average had greater respiration (29%), NH 4 release (33%), and greater NO 3 release (52%) compared to mimics, suggesting allogenic (biological) mechanisms occur, but play a secondary role to autogenic (physical) mechanisms. The dominance of autogenic mechanisms indicates that bio-engineers are likely to cause significant impacts when established, regardless of fundamental differences in recipient regions or identity of the introduced bio-engineer. in the case of Sabella spallanzanii, compromised denitrification has the potential to tip the balance of net solute and gas exchanges and cause further ecological degradation in an already eutrophic system.

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Forecasting the economic impacts of two biofouling invaders on aquaculture production of green-lipped mussels Perna canaliculus in New Zealand

Cited by 27 publications

References 42 publications

Biofouling in marine aquaculture: a review of recent research and developments

Biofouling in marine aquaculture: a review of recent research and developments

Considerations for incorporating real-time PCR assays into routine marine biosecurity surveillance programmes: a case study targeting the Mediterranean fanworm (Sabella spallanzanii) and club tunicate (Styela clava)

Invasive ecosystem engineers threaten benthic nitrogen cycling by altering native infaunal and biofouling communities

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