Marine governance in the English Channel (La Manche): Linking science and management

Glegg, Gillian; Jefferson, Rebecca; Fletcher, Stephen

doi:10.1016/j.marpolbul.2015.02.020

Cited by 13 publications

(8 citation statements)

References 39 publications

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“…Equation ( 1) is based on fitting a curve to the measurements of over a thousand flow-transverse bedforms [31]. Equation (2) gives an upper bound of H based on the same raw data. Baas [32] gives slightly different values in the form of a vertical form index (or ripple index), given as L/H, for which the most common value is 8-9.…”

Section: Study Areamentioning

confidence: 99%

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Measuring Centimeter-Scale Sand Ripples Using Multibeam Echosounder Backscatter Data from the Brown Bank Area of the Dutch Continental Shelf

et al. 2020

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Backscatter data from multibeam echosounders are commonly used to classify seafloor sediment composition. Previously, it was found that the survey azimuth affects backscatter when small organized seafloor structures, such as sand ripples, are present. These sand ripples are too small to be detected in the multibeam bathymetry. Here, we show that such azimuth effects are time dependent and are useful to examine the orientation of sand ripples in relation to the flow direction of the tide. To this end, multibeam echosounder data at four different frequencies were gathered from the area of the Brown Bank in the North Sea. The acoustic results were compared to video and tide-flow data for validation. The sand ripples affected the backscatter at all frequencies, but for the lowest frequencies the effect was spread over more beam angles. Using the acoustic data made it possible to deduce the orientations of the sand ripples over areas of multiple square kilometers. We found that the top centimeter(s) of the seafloor undergoes a complete transformation every six hours, as the orientation of the sand ripples changes with the changing tide. Our methodology allows for morphology change detection at larger scales and higher resolutions than previously achieved.

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Section: Study Areamentioning

confidence: 99%

“…The North Sea is one of the busiest seas of the world [1], with heavy shipping traffic [2] from major international ports such as Rotterdam, Antwerp, Hamburg, and Bremen. At its southernmost point, it connects to the English Channel at the Dover Strait, which is the busiest shipping lane in the world [3].…”

Section: Introductionmentioning

confidence: 99%

Measuring Centimeter-Scale Sand Ripples Using Multibeam Echosounder Backscatter Data from the Brown Bank Area of the Dutch Continental Shelf

et al. 2020

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“…However, they are also some of the most heavily degraded environments as a result of substantial and increasing human pressures, threats and challenges [3][4][5]. This is reflected in the English Channel (known as La Manche in France; hereafter the Channel), an area of high conservation importance and one which contributes to economic prosperity, social well-being and quality of the life [6]. The geographical area of the Channel is defined as having, as its western limit a line from [7].…”

Section: Introductionmentioning

confidence: 99%

“…The geographical area of the Channel is defined as having, as its western limit a line from [7]. However, the boundaries of the region and its coastal zone can vary depending on the issues being considered, with different boundaries applied by OSPAR, the EU, and other bodies [6].…”

Section: Introductionmentioning

confidence: 99%

Public perceptions of management priorities for the English Channel region

et al. 2018

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The English Channel region is an area of high conservational importance, as well being a contributor to economic prosperity, social well-being and quality of life of the people living around it. There is a need to incorporate societal elements into marine and coastal governance, to improve management of the Channel ecosystem. Public Perception Research (PPR) is a relatively unexplored dimension of marine science, with limited research at the scale of the Channel region. U , the C rine and coastal environment. It revealed that there are variations in how the English and French coastlines are used. Environmental issues were generally viewed as being more important than economic ones. Country-level differences were observed for public uses of, and priorities for the Channel region. Cleaner water and beaches, and improved coastal flood defences, were more highly prioritised by English respondents, while offshore renewable energy and sustainability of businesses were more highly prioritised by French respondents. The paper contributes to the debate on the value of PPR by addressing evidence gaps in the English Channel region, and to PPR literature more broadly. It provides baseline data to inform future engagement strategies for the marine and coastal governance of the Channel region specifically. It also identifies how this type of research has implications for the wider marine and coastal environment, including contributing to Sustainable Development Goal 14 on conserving and sustainably using the oceans, seas, and marine resources. Research highlights:  The paper presents survey findings on public use of and priorities for the Channel.  There are country-level differences in public use and priorities for the Channel.  Environmental issues are generally viewed as more important than economic ones.  English and French coasts present different opportunities for leisure and recreation.  PPR is important for governance of global marine and coastal environments.

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“…more than 20% of the World’s EEZ [ 1 ]. This important sea area offers a significant proportion of marine resources to each member state and contributes to economic prosperity and social well-being [ 2 ]. In order to protect this marine environment in the context of sustainable development [ 3 ], an integrated European marine policy has been developed.…”

Section: Introductionmentioning

confidence: 99%

Process-driven and biological characterisation and mapping of seabed habitats sensitive to trawling

et al. 2017

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The increase of anthropogenic pressures on the marine environment together with the necessity of a sustainable management of marine living resources have underlined the need to map and model coastal environments, particularly for the purposes of spatial planning and for the implementation of integrated ecosystem-based management approach. The present study compares outputs of a process-driven benthic habitat sensitivity (PDS) model to the structure, composition and distribution of benthic invertebrates in the Eastern English Channel and southern part of the North Sea. Trawl disturbance indicators (TDI) computed from species biological traits and benthic community composition were produced from samples collected with a bottom trawl. The TDI was found to be highly correlated to the PDS further validating the latter’s purpose to identify natural process-driven pattern of sensitivity. PDS was found to reflect an environmental potential that may no longer be fully observable in the field and difference with in situ biological observations could be partially explained by the spatial distribution of fishery pressure on the seafloor. The management implication of these findings are discussed and we suggest that, used in conjunction with TDI approaches, PDS may help monitor management effort by evaluating the difference between the current state and the presumed optimal environmental status of marine benthic habitats.

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Marine governance in the English Channel (La Manche): Linking science and management

Cited by 13 publications

References 39 publications

Measuring Centimeter-Scale Sand Ripples Using Multibeam Echosounder Backscatter Data from the Brown Bank Area of the Dutch Continental Shelf

Measuring Centimeter-Scale Sand Ripples Using Multibeam Echosounder Backscatter Data from the Brown Bank Area of the Dutch Continental Shelf

Public perceptions of management priorities for the English Channel region

Process-driven and biological characterisation and mapping of seabed habitats sensitive to trawling

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