Ghost fishing activity in derelict blue crab traps in Louisiana

Anderson, Julie A.; Alford, Amy B.

doi:10.1016/j.marpolbul.2013.12.002

Cited by 51 publications

(29 citation statements)

References 19 publications

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“…These studies focused on specific animal groups, mostly vertebrates: seabirds (van Franeker et al 2011;Lindborg et al 2012), marine mammals ), fish (Carson 2013) and sea turtles (Bjorndal et al 1994). For example, citizen scientists supported cleanups of derelict crab traps and quantified the species entangled by ghost fishing activity (Anderson and Alford 2014), or information on species affected by marine litter was documented on an interactive website (Hong et al 2013). Other aspects of marine litter were examined in 15 % of all citizen science studies (Table 16.1).…”

Section: Research Topicmentioning

confidence: 99%

“…Of the citizen-science studies on marine litter examined, 55 % included at least one of these steps (e.g. Rosevelt et al 2013;Anderson and Alford 2014;Gago et al 2014).…”

Section: Data Collection and Quality Control Of Citizen-science Studiesmentioning

confidence: 99%

“…Photographs of marine litter items were used in 15 % of the studies (e.g. Moore et al 2009;Anderson and Alford 2014).…”

Section: Preparation Of Easy and Straight-forward Protocolsmentioning

confidence: 99%

“…Moore et al 2009). For instance, a study on ghost fishing by derelict crab traps (Anderson and Alford 2014) was preceded by a training period. Furthermore, during one study year, participants were asked to take photos of every trap and to identify the organisms in the traps.…”

Section: Training Of Volunteersmentioning

confidence: 99%

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The Contribution of Citizen Scientists to the Monitoring of Marine Litter

Hidalgo‐Ruz

Thiel

2015

Marine Anthropogenic Litter

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Citizen science projects are based on volunteer participation of untrained citizens who contribute information, data and samples to scientific studies. Herein we provide an overview of marine litter studies that have been supported by citizen scientists (n = 40) and compare these studies with selected studies conducted by professional scientists (n = 40). Citizen science studies have mainly focused on the distribution and composition of marine litter in the intertidal zone. Studies extended over regional, national and international scales, with time periods generally extending from less than one year to two years. Professional studies have also examined the distribution and composition of marine litter, but from intertidal, subtidal and pelagic zones, with some focusing exclusively on microplastics. These studies have been conducted over local, regional and international scales, usually for less than one year each. Both citizen science and professional studies on marine litter have been conducted mainly in the northern hemisphere, revealing a lack of information available on coastal regions of the southern hemisphere. A main concern of citizen science studies is the reliability of the collected information, which is why many studies include steps to ensure data quality, such as preparation of clear protocols, training of volunteers, in situ supervision by professional scientists, and revision of samples and data. The results of this comparative review confirm that citizen science can be a useful approach to increase the available information on marine litter sources, distribution and ecological impacts. Future studies should strive to incorporate IntroductionLarge quantities of anthropogenic litter reach the marine environment, where they spread throughout all oceans and persist for many years (Derraik 2002;Barnes et al. 2009;Ryan et al. 2009;Eriksen et al. 2014). The accumulation of litter causes diverse impacts on marine biota, such as entanglement (Laist 1997;Moore et al. 2009), ingestion (e.g. van Franeker et al. 2011Carson 2013;Cole et al. 2013), and dispersal of alien species (Barnes 2002;Masó et al. 2003;Kiessling et al. 2015). The extensive spreading of marine litter, even to the most remote regions of the world's oceans, makes litter distribution and abundance surveys difficult and time consuming (Ryan et al. 2009;Eriksen et al. 2014). Coastal regions, where a large fraction of marine litter is deposited, receive visits from a wide range of people, including, but not limited to, tourists, fishermen, and schoolchildren. Such coastal users have been recruited to support scientific beach surveys to quantify marine litter worldwide (e.g. Ogata et al. 2009;Ribic et al. 2010). These volunteers (here termed "citizen scientists") (Bonney et al. 2009) have participated in the collection, analysis and interpretation of data in a wide range of studies, determining litter distribution and abundance in the marine environment (Lindborg et al. 2012;Smith and Edgar 2014;Thiel et al. 2014).Herein we provide a ...

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Section: Research Topicmentioning

confidence: 99%

“…Of the citizen-science studies on marine litter examined, 55 % included at least one of these steps (e.g. Rosevelt et al 2013;Anderson and Alford 2014;Gago et al 2014).…”

Section: Data Collection and Quality Control Of Citizen-science Studiesmentioning

confidence: 99%

“…Photographs of marine litter items were used in 15 % of the studies (e.g. Moore et al 2009;Anderson and Alford 2014).…”

Section: Preparation Of Easy and Straight-forward Protocolsmentioning

confidence: 99%

Section: Training Of Volunteersmentioning

confidence: 99%

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The Contribution of Citizen Scientists to the Monitoring of Marine Litter

Hidalgo‐Ruz

Thiel

2015

Marine Anthropogenic Litter

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“…There have been substantial efforts to understand the characteristic, quantity and impact of ghost fishing, and to find solutions for reducing negative impacts (Matsuoka et al, 2005;Ayaz et al, 2006;Brown & Macfadyen, 2007;Baeta et al, 2009;Campbell & Sumpton, 2009;Anderson & Alford, 2014;Kim, Lee & Moon, 2014a;Gilman, 2015). Through these efforts it has become obvious that structural design features on specific gear components may markedly help to reduce ghost fishing in particular in trap-net and pot fisheries, but are less likely to be as feasible in driftnet, trammel net and set gillnet fisheries (e.g.…”

Section: Introductionmentioning

confidence: 99%

Use of biodegradable driftnets to prevent ghost fishing: physical properties and fishing performance for yellow croaker

Kim

Lim

et al. 2016

Anim Conserv

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When synthetic non-biodegradable fishing nets are lost, abandoned or discarded at sea, they may continue to catch fish and other animals for a long period of time. This phenomenon is known as 'ghost fishing'. Biodegradable fishing nets, on the other hand, are intended to degrade or decompose after a certain period of time under water and thereby lose their ghost fishing capacity more quickly than conventional gear. A biodegradable net material, a blend of 82% polybutylene succinate (PBS) and 18% polybutylene adipate-co-terephthalate (PBAT), was developed. We examined the physical properties and degradability of the biodegradable monofilament, and compared the fishing performance of driftnets made of conventional nylon and of the biodegradable material. When dry, conventional nylon monofilament exhibited a greater breaking strength and elongation than biodegradable monofilament of the same diameter. When wet, the biodegradable monofilament exhibited a stiffness of c. 1.5-fold than nylon monofilament. This suggests that a net made of the less flexible biodegradable monofilament would have lower fishing efficiency than conventional nets. The fishing performance comparisons between the biodegradable and conventional nylon nets, however, revealed similar catch rates for yellow croaker Larimichthys polyactis. Biodegradable monofilament started to degrade after 24 months in seawater by marine organisms. We conclude that biodegradable netting may become a feasible alternative to conventional nylon netting and can contribute to reducing the duration of ghost fishing. Nonetheless, there remain many uncertainties, challenges and knowledge gaps that have to be solved before we are able to draw firm conclusions about the overall benefits of these materials in driftnet fisheries.

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Plastics in the Oceans

2015

Plastics and Environmental Sustainability

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Ghost fishing activity in derelict blue crab traps in Louisiana

Cited by 51 publications

References 19 publications

The Contribution of Citizen Scientists to the Monitoring of Marine Litter

The Contribution of Citizen Scientists to the Monitoring of Marine Litter

Use of biodegradable driftnets to prevent ghost fishing: physical properties and fishing performance for yellow croaker

Plastics in the Oceans

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