Ecological consequences of dredged material disposal in the marine environment: A holistic assessment of activities around the England and Wales coastline

Bolam, S.G.; Rees, H.L.; Somerfield, Paul J.; Smith, RI; Clarke, K.R.; Warwick, R.M.; Atkins, M; Garnacho, Eva

doi:10.1016/j.marpolbul.2005.09.028

Cited by 123 publications

(43 citation statements)

References 13 publications

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“…Some activities such as drainage (Newell et al 1998, Bemvenuti et al 2005, disposal of sediments (Bolam et al 2006, Vivan et al 2009), construction of permanent structures (Skilleter & Warren 2000), domestic and industrial sewage (Guerra-García & García-Gómez 2004, Cannicci et al 2009), and fishing (Collie et al 2000, Gaspar et al 2003, Gray et al 2006 are well known to affect benthic assemblages. Among the organisms that compose the benthic macrofauna, molluscs may rapidly respond to impacts such as burial and/or suspension of fine sediments (Morton 1996), enrichment with organic matter from sewage (Inglis & Kross 2000, Guerra-García & García-Gómez 2004, Whomersley et al 2007, Cannicci et al 2009), and commercial exploitation (Brazeiro & Defeo 1999).…”

Section: Introductionmentioning

confidence: 99%

Mollusc assemblage in an urban bay nearby a marine extractive reserve, Florianópolis - SC, Brazil

Gandara-Martins

Almeida

2013

Biota Neotrop.

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have described the spatio-temporal variation of mollusc assemblage in a coastal urban bay near a Marine Extractive Reserve (RESEX), where several human activities are performed. Uni and multivariate analyses were conducted considering spatial (six sampling stations) and temporal scale (30 surveys from 2002 to 2008) and two associations were recognized. We identified 48 species from 28 families belonging to four classes: Bivalvia, Gastropoda, Polyplacophora, and Scaphopoda. The Sand Tidal Flat association had a contribution of more than 90% of Anomalocardia brasiliana (Gmelin, 1791) as well as a higher diversity and similarity among surveys. The Mud Bottom association had a lower similarity among surveys due to the low abundance of species. The feeding habits of molluscs were different between the associations. The climate and the fauna followed a seasonal pattern, with low variance over years. The highest diversity was detected at the end of a highway construction, indicating a rapid recolonization, probably due to the proximity to a protected area. We highlight the need to the conservation of sand tidal flats, mostly because of their high diversity, location in a transitional zone between marine, freshwater, and terrestrial ecosystems (connected with mangrove forests), in addition to the economic importance, and anthropogenic pressure. Resumo: Descrevemos a variação espaço-temporal da assembleia de moluscos em uma baía costeira urbana próxima a uma Reserva Extrativista Marinha (RESEX), onde várias atividades humanas são realizadas. Análises uni e multivariadas foram realizadas, considerando as escalas espacial (seis estações de amostragem) e temporal (30 campanhas entre 2002 e 2008). Um total de 48 espécies foram identificadas, pertencentes a 28 famílias e distribuídas em 4 classes: Bivalvia, Gastropoda, Polyplacophora e Scaphopoda. Duas associações foram reconhecidas. A associação Planície Arenosa teve uma contribuição de mais de 90% de Anomalocardia brasiliana (Gmelin 1791) e maior diversidade e similaridade entre as campanhas. A associação Fundo Lamoso teve menor similaridade entre as campanhas, devido à baixa abundância de espécies. O hábito alimentar dos moluscos que compõem as associações também foi diferente entre as associações. O clima durante o período estudado apresentou um padrão sazonal, com pouca variação entre os anos, que foi seguido pela fauna. A maior diversidade foi detectada concomitantemente ao fim da construção de uma rodovia (Via Expressa Sul), evidência de uma rápida recolonização, possivelmente associada à proximidade de uma área protegida (RESEX). Ressaltamos a necessidade de conservação das planícies arenosas entre-marés , principalmente devido a sua alta diversidade, localização em zonas de transição entre os ecossistemas de água doce, marinho e terrestre (conectados a florestas de mangue), importância econômica e pressão antrópica. Palavras-chave: planície arenosa, fundo lamoso, hábitos alimentares, Anomalocardia brasiliana, Sul do Brasil.

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Section: Introductionmentioning

confidence: 99%

Mollusc assemblage in an urban bay nearby a marine extractive reserve, Florianópolis - SC, Brazil

Gandara-Martins

Almeida

2013

Biota Neotrop.

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“…Both these phenomena contribute to major export of particles (Ulses et al, 2008) which impoverish the shelf and have profound impacts on the deep-sea ecosystem (Sanchez-Vidal et al, 2012) including beneficial feeding of the shrimp populations (Canals et al, 2009). Post-disturbance recovery dynamics of benthic systems will differ depending on nature of disturbance: hypoxia (Rosenberg et al, 2002), benthic trawling (Collie et al, 2000), dredge dumping (Bolam et al, 2006) or deep sea mining (Jones et al, 2017) will have different impacts and dynamics of recovery. One of the modelling challenges is the representation of lateral recolonization in benthic communities (Dittmann et al, 1999;Fowler, 2002), since microbial functions such as denitrification only return fully after recovery of deep-digging fauna (Van Colen et al, 2012).…”

Section: Episodic Events and Recoverymentioning

confidence: 99%

Modelling Marine Sediment Biogeochemistry: Current Knowledge Gaps, Challenges, and Some Methodological Advice for Advancement

et al. 2018

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The benthic environment is a crucial component of marine systems in the provision of ecosystem services, sustaining biodiversity and in climate regulation, and therefore important to human society. With the contemporary increase in computational power, model resolution and technological improvements in quality and quantity of benthic data, it is necessary to ensure that benthic systems are appropriately represented in coupled benthic-pelagic biogeochemical and ecological modelling studies. In this paper we focus on five topical challenges related to various aspects of modelling benthic environments: organic matter reactivity, dynamics of benthic-pelagic boundary layer, microphytobenthos, biological transport and small-scale heterogeneity, and impacts of episodic events. We discuss current gaps in their understanding and indicate plausible ways ahead. Further, we propose a three-pronged approach for the advancement of benthic and benthic-pelagic modelling, essential for improved understanding, management and prediction of the marine environment. This includes: (A) development of a traceable and hierarchical framework for benthic-pelagic models, which will facilitate integration among models, reduce risk of bias, and clarify model limitations; (B) extended cross-disciplinary approach to promote effective collaboration between modelling and empirical scientists of various backgrounds and better involvement of stakeholders and end-users; (C) a common vocabulary for terminology used in benthic modelling, to promote model development and integration, and also to enhance mutual understanding.

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“…Annually, approximately 40 million wet tonnes of sediments are disposed of in approximately 150 licensed disposal sites around the coast of England [50]. It is estimated that there are 100-200 million cubic meters dredged per year in Europe alone [51].…”

Section: Dredged Sedimentsmentioning

confidence: 99%

In Situ Resource Recovery from Waste Repositories: Exploring the Potential for Mobilization and Capture of Metals from Anthropogenic Ores

Sapsford

Cleall

Harbottle

2016

J. Sustain. Metall.

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Wastes and the waste repositories in which they reside are becoming targets for resource recovery, both for legacy wastes and for future waste arisings as part of a desire to move toward a circular economy. There is an urgent requirement to explore concepts for practicable technologies that can be applied to these ends. This paper presents a synthesis of concepts concerning in situ technologies (developed from mining and contaminated land remediation industries) that have enormous potential for application to technospheric mining. Furthermore, potential target waste streams and their mineralogy and character are presented along with a discussion concerning lixiviant and metal capture systems that could be applied. Issues of preferential flow (critical to the success of in situ techniques) and how to control it with engineering measures are discussed in detail. It is clear that in situ recovery of metals from anthropogenic ores is a novel technology area that links new sustainable remediation approaches for contaminated materials and technospheric mining for closing material loops, and warrants the further research and development of technologies applicable to major waste streams.

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Ecological consequences of dredged material disposal in the marine environment: A holistic assessment of activities around the England and Wales coastline

Cited by 123 publications

References 13 publications

Mollusc assemblage in an urban bay nearby a marine extractive reserve, Florianópolis - SC, Brazil

Mollusc assemblage in an urban bay nearby a marine extractive reserve, Florianópolis - SC, Brazil

Modelling Marine Sediment Biogeochemistry: Current Knowledge Gaps, Challenges, and Some Methodological Advice for Advancement

In Situ Resource Recovery from Waste Repositories: Exploring the Potential for Mobilization and Capture of Metals from Anthropogenic Ores

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