Tragedy of the unwanted commons: Governing the marine debris in Taiwan’s oyster farming

Liu, Ta Kang; Kao, Jui Chuang; Ping, Chen

doi:10.1016/j.marpol.2014.12.001

Cited by 30 publications

(10 citation statements)

References 31 publications

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“…Fishing and aquaculture have also been identified as important litter sources in the sampling area. This finding is consistent with the fact that pollution by lost or discarded fishing gear is a common problem in the world’s seas (including the benthos) and on beaches [ 37 , 82 – 84 ]. There is a high activity of small-scale fishery, with 19 fishing ports along Asturias coastline and a large area of fishing grounds near- and off-shore, plus one active site of mollusc aquaculture (mainly oysters) near Figueras, and several crustacean ponds ( http://www.sigmarinoasturias.es/ ).…”

Section: Discussionsupporting

confidence: 87%

“…Marine anthropogenic litter stems from various sources, like households, beach-based leisure activities, sea-going activities, industries, and sewage [ 34 ]. The contribution of each source to anthropogenic litter has been investigated at many locations [ 9 , 35 – 37 ], but the main sources of litter rafts with biota are less known. For particular items, macroscopic attached biota has been reported.…”

Section: Introductionmentioning

confidence: 99%

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Anthropogenic marine litter composition in coastal areas may be a predictor of potentially invasive rafting fauna

2018

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Anthropogenic plastic pollution is a global problem. In the marine environment, one of its less studied effects is the transport of attached biota, which might lead to introductions of non-native species in new areas or aid in habitat expansions of invasive species. The goal of the present work was to assess if the material composition of beached anthropogenic litter is indicative of the rafting fauna in a coastal area and could thus be used as a simple and cost-efficient tool for risk assessment in the future. Beached anthropogenic litter and attached biota along the 200 km coastline of Asturias, central Bay of Biscay, Spain, were analysed. The macrobiotic community attached to fouled litter items was identified using genetic barcoding combined with visual taxonomic analysis, and compared between hard plastics, foams, other plastics and non-plastic items. On the other hand, the material composition of beached litter was analysed in a standardized area on each beach. From these two datasets, the expected frequency of several rafting taxa was calculated for the coastal area and compared to the actually observed frequencies. The results showed that plastics were the most abundant type of beached litter. Litter accumulation was likely driven by coastal sources (industry, ports) and river/sewage inputs and transported by near-shore currents. Rafting vectors were almost exclusively made up of plastics and could mainly be attributed to fishing activity and leisure/ household. We identified a variety of rafting biota, including species of goose barnacles, acorn barnacles, bivalves, gastropods, polychaetes and bryozoan, and hydrozoan colonies attached to stranded litter. Several of these species were non-native and invasive, such as the giant Pacific oyster (Crassostrea gigas) and the Australian barnacle (Austrominius modestus). The composition of attached fauna varied strongly between litter items of different materials. Plastics, except for foam, had a much more diverse attached community than non-plastic materials. The predicted frequency of several taxa attached to beached litter significantly correlated with the actually observed frequencies. Therefore we suggest that the composition of stranded litter on a beach or an area could allow for predictions about the corresponding attached biotic community, including invasive species.

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Anthropogenic marine litter composition in coastal areas may be a predictor of potentially invasive rafting fauna

2018

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“…Nonorganic residues (mainly plastic debris) may pose a problem in coastal areas where oyster culture is intensive (Liu et al . ). In Pará, the use of natural materials from the mangrove means residues from oyster culture is mostly biodegradable, but, of course, the use of materials from the mangrove has a potentially negative impact on the habitat, which needs to be mitigated by sustainable management.…”

Section: Resultsmentioning

confidence: 97%

“…Finally, calcium carbonate from cultivated oyster shells, which are otherwise discarded, could provide raw material for a diverse range of products for construction, cosmetics and other industries (Chierighini et al 2011). Nonorganic residues (mainly plastic debris) may pose a problem in coastal areas where oyster culture is intensive (Liu et al 2015). In Par a, the use of natural materials from the mangrove means residues from oyster culture is mostly biodegradable, but, of course, the use of materials from the mangrove has a potentially negative impact on the habitat, which needs to be mitigated by sustainable management.…”

Section: Availability Of Infrastructure Production and Commercializamentioning

confidence: 99%

Oyster culture on the Amazon mangrove coast: asymmetries and advances in an emerging sector

Sampaio

Tagliaro

Schneider

et al. 2017

Reviews in Aquaculture

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Oyster culture activity along the eastern Amazon mangrove coast in Pará state, Brazil, was evaluated using socio‐economic data to support its management and future development. Between 2013 and 2014, surveys were carried out in the region's seven oyster culture associations through interviews with the president of each association as well as with 56 members (72% of the total). Further data up to 2016 were obtained from annual reports of the Serviço Brasileiro de Apoio às Micro e Pequenas Empresas in Pará and the Instituto Brasileiro de Geografia e Estatística. Two associations stand out from the rest due to their larger on‐growing areas and total production in 2013. However, smaller associations are more efficient with higher production per unit area. Currently, oyster culture in Pará provides an alternative source of income for 80 families, where total production has increased from 8.25 tons in 2013 to 41.8 tons in 2016. Although associations have grown in number since 2006, along with increased capacity and production due to government assistance, in comparison with other regions of Brazil, they need to be better organized internally, including regular monitoring of growth, production and environmental variables, development of depuration facilities and improved distribution and presentation of products. Diversification of seed supply among different locations is desirable. There should also be less dependence on public funding and more partnerships with private enterprise, as well as active coparticipation in the development of legislation and public policies regulating both oyster culture and protection of natural oyster beds.

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“…O YSTER culture, an important shallow water industry that can be dated back to more than 300 years ago during Dutch colonial period, is a major type of aquaculture in Taiwan [1], [2]. Based on a recent scientific report in 2016, the cultured species in Taiwan is the Portuguese oyster, Crassostrea angulata [3].…”

Section: Introductionmentioning

confidence: 99%

Timely and Quantitative Damage Assessment of Oyster Racks Using UAV Images

Yang

Huang

Jin

et al. 2018

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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Tragedy of the unwanted commons: Governing the marine debris in Taiwan’s oyster farming

Cited by 30 publications

References 31 publications

Anthropogenic marine litter composition in coastal areas may be a predictor of potentially invasive rafting fauna

Anthropogenic marine litter composition in coastal areas may be a predictor of potentially invasive rafting fauna

Oyster culture on the Amazon mangrove coast: asymmetries and advances in an emerging sector

Timely and Quantitative Damage Assessment of Oyster Racks Using UAV Images

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