Impact of farming non-indigenous scallop Argopecten irradians on benthic ecosystem functioning: a case-study in Laizhou Bay, China

Huang, Qian; Olenin, Sergej; Sun, Song; Troch, Marleen De

doi:10.3354/aei00264

Cited by 11 publications

(3 citation statements)

References 80 publications

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“…In general, a similar loss was observed in both seasons, and this loss was independent of carbon flux except for very high and low values, indicating that the loss process is mainly determined by local environmental conditions, rather than flux and season. The loss of biodeposits is caused by a series of physical, chemical, and biological processes, e.g., resuspension, decay, bioturbation, and degradation, − , partially representing the amount of organic carbon that the environment can assimilate. These processes reduced the organic carbon that remains in the sediment of the local farm, accordingly, reducing the negative impact of organic carbon disturbance on the benthic environment.…”

Section: Resultsmentioning

confidence: 99%

“…Bivalve farming is understood to increase sedimentation rates due to the consolidation of suspended particles into larger, heavier feces and pseudofeces that sink to the bottom as biodeposits . This process significantly increases the benthic organic carbon flux (i.e., the flux of particulate organic carbon deposited on the sediment, hereafter carbon flux). , However, only considering the increased flux within the farming area may underestimate potential spatial impacts. In fact, as filter-feeders, bivalves can significantly reduce seston concentrations, and advected depleted waters can reduce natural deposition outside the farming area .…”

Section: Introductionmentioning

confidence: 99%

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Vacuum Effect: A Redistribution Process of Organic Carbon Mediated by Bivalve Farming

Sun,

Filgueira,

Wang

et al. 2023

ACS EST Water

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Bivalve farming affects the spatiotemporal distribution of organic carbon deposition to benthic environments, potentially altering ecosystem functioning. In this study, spatiotemporal patterns of benthic organic carbon flux of a bottom-based Manila clam (Ruditapes philippinarum) farm were estimated for a 1 year farming cycle using a carbon flux model coupled to a two-dimensional (2-D) hydrodynamic (MIKE-3) and a clam dynamic energy budget (DEB) model. The simulated flux was compared to the sediment total organic carbon (TOC) and contribution of biodeposits to sediment TOC based on stable isotope signatures. The outputs of the model illustrated a clear “vacuum effect” with increased carbon flux within and near the farming area (deposition area) and reduced flux outside the farm (depletion area), which could also correspond to changes in sediment TOC. Moreover, the contribution of biodeposits to the carbon flux was overall higher compared to that of biodeposits to sediment TOC, indicating a loss of biodeposits from deposition to storage in the sediment. This study highlights the role clam farming plays in the dynamics of organic carbon by linking vertical fluxes with sediment TOC, which addresses the current knowledge gaps related to the carbon footprint in coastal bivalve aquaculture systems.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Vacuum Effect: A Redistribution Process of Organic Carbon Mediated by Bivalve Farming

Sun,

Filgueira,

Wang

et al. 2023

ACS EST Water

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“…Recently, a few studies have explored the direct trophic interactions between bivalve aquaculture and wild populations. Using stable isotope analysis, Huang et al (2018) showed that scallop faeces may serve as new food source for benthic organisms, including meiofauna, further improving the quality of lower level consumers as a food item in the benthic food web. Such results are important and should be further explored since cascading effects to higher trophic levels could have a crucial importance for ecosystem functioning, including on commercial species.…”

Section: Impacts Of Bivalve Aquaculture On the Benthic Ecosystemmentioning

confidence: 99%

Biodiversity–Ecosystem Functioning (BEF) approach to further understanding aquaculture–environment interactions with application to bivalve culture and benthic ecosystems

Lacoste

McKindsey

Archambault

2020

Reviews in Aquaculture

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Coastal benthic ecosystems may be impacted by numerous human activities, including aquaculture, which continues to expand rapidly. Indeed, today aquaculture worldwide provides more biomass for human consumption than do wild fisheries. This rapid development raises questions about the interactions the practice has with the surrounding environment. In order to design strategies of sustainable ecosystem exploitation and marine spatial planning, a better understanding of coastal ecosystem functioning is needed so that tools to quantify impacts of human activities, including aquaculture, may be developed. To achieve this goal, some possible directions proposed are integrated studies leading to new concepts, model development based on these concepts and comparisons of various ecosystems on a global scale. This review draws on existing literature to (i) briefly summarize the major ecological interactions between off‐bottom shellfish aquaculture and the environment, (ii) introduce research on the influence of benthic diversity on ecosystem functioning (BEF relationships) and (iii) propose a holistic approach to conduct aquaculture–environment studies using a BEF approach, highlighting the need for integrated studies that could offer insights and perspectives to guide future research efforts and improve the environmental management of aquaculture.

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Meiobenthos as food for farmed shrimps in the earthen ponds: Implications for sustainable feeding

Huang

Olenin

et al. 2020

Aquaculture

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Impact of farming non-indigenous scallop Argopecten irradians on benthic ecosystem functioning: a case-study in Laizhou Bay, China

Cited by 11 publications

References 80 publications

Vacuum Effect: A Redistribution Process of Organic Carbon Mediated by Bivalve Farming

Vacuum Effect: A Redistribution Process of Organic Carbon Mediated by Bivalve Farming

Biodiversity–Ecosystem Functioning (BEF) approach to further understanding aquaculture–environment interactions with application to bivalve culture and benthic ecosystems

Meiobenthos as food for farmed shrimps in the earthen ponds: Implications for sustainable feeding

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