Methodology for defining homogeneous water bodies for management purposes

Vibe Schourup-Kristensen; Marie Maar; Janus Larsen; Christian Mohn; Jens Murawski; Jun She; Hans H. Jakobsen

doi:10.1016/j.marpolbul.2021.113004

Methodology for defining homogeneous water bodies for management purposes

Vibe Schourup-Kristensen^*, Marie Maar, Janus Larsen, Christian Mohn, Jens Murawski, Jun She, Hans H. Jakobsen

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

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Abstract

European legislation requires monitoring of toxic algae in marine areas where shellfish are harvested for consumption. Monitoring assumes the existence of homogeneous water bodies, the definition of which have important implications for stakeholders and consumers. Yet, the definition of homogeneous water bodies remains unclear. Here we present a methodology to divide coastal and estuarine waters into homogeneous water bodies to monitor toxic algae. The proposed method is mainly based on water transport, and secondarily on oceanographic characteristics; salinity and sea surface height. We apply the methodology to the Limfjord in Denmark and demonstrate its usefulness in areas with a complicated coastal morphology. The oceanographic descriptors applied in the method are standard outputs from coastal hydrodynamical models. Provided that validated and high resolution model output is available for a given area, the technique is thus adaptable to other morphologically and oceanographically complicated estuarine and coastal areas where toxic algae monitoring is necessary.

Original language	English
Article number	113004
Journal	Marine Pollution Bulletin
Volume	173
Issue	Part A
ISSN	0025-326X
DOIs	https://doi.org/10.1016/j.marpolbul.2021.113004
Publication status	Published - Dec 2021

Keywords

Estuarine management
Homogeneous water masses
Limfjorden
Toxic algae management
Transitional waters

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10.1016/j.marpolbul.2021.113004Licence: CC BY

1-s2.0-S0025326X21010389-mainFinal published version, 14.4 MBLicence: CC BY

Cite this

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title = "Methodology for defining homogeneous water bodies for management purposes",

abstract = "European legislation requires monitoring of toxic algae in marine areas where shellfish are harvested for consumption. Monitoring assumes the existence of homogeneous water bodies, the definition of which have important implications for stakeholders and consumers. Yet, the definition of homogeneous water bodies remains unclear. Here we present a methodology to divide coastal and estuarine waters into homogeneous water bodies to monitor toxic algae. The proposed method is mainly based on water transport, and secondarily on oceanographic characteristics; salinity and sea surface height. We apply the methodology to the Limfjord in Denmark and demonstrate its usefulness in areas with a complicated coastal morphology. The oceanographic descriptors applied in the method are standard outputs from coastal hydrodynamical models. Provided that validated and high resolution model output is available for a given area, the technique is thus adaptable to other morphologically and oceanographically complicated estuarine and coastal areas where toxic algae monitoring is necessary.",

keywords = "Estuarine management, Homogeneous water masses, Limfjorden, Toxic algae management, Transitional waters",

author = "Vibe Schourup-Kristensen and Marie Maar and Janus Larsen and Christian Mohn and Jens Murawski and Jun She and Jakobsen, {Hans H.}",

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doi = "10.1016/j.marpolbul.2021.113004",

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T1 - Methodology for defining homogeneous water bodies for management purposes

AU - Schourup-Kristensen, Vibe

AU - Maar, Marie

AU - Larsen, Janus

AU - Mohn, Christian

AU - Murawski, Jens

AU - She, Jun

AU - Jakobsen, Hans H.

PY - 2021/12

Y1 - 2021/12

N2 - European legislation requires monitoring of toxic algae in marine areas where shellfish are harvested for consumption. Monitoring assumes the existence of homogeneous water bodies, the definition of which have important implications for stakeholders and consumers. Yet, the definition of homogeneous water bodies remains unclear. Here we present a methodology to divide coastal and estuarine waters into homogeneous water bodies to monitor toxic algae. The proposed method is mainly based on water transport, and secondarily on oceanographic characteristics; salinity and sea surface height. We apply the methodology to the Limfjord in Denmark and demonstrate its usefulness in areas with a complicated coastal morphology. The oceanographic descriptors applied in the method are standard outputs from coastal hydrodynamical models. Provided that validated and high resolution model output is available for a given area, the technique is thus adaptable to other morphologically and oceanographically complicated estuarine and coastal areas where toxic algae monitoring is necessary.

AB - European legislation requires monitoring of toxic algae in marine areas where shellfish are harvested for consumption. Monitoring assumes the existence of homogeneous water bodies, the definition of which have important implications for stakeholders and consumers. Yet, the definition of homogeneous water bodies remains unclear. Here we present a methodology to divide coastal and estuarine waters into homogeneous water bodies to monitor toxic algae. The proposed method is mainly based on water transport, and secondarily on oceanographic characteristics; salinity and sea surface height. We apply the methodology to the Limfjord in Denmark and demonstrate its usefulness in areas with a complicated coastal morphology. The oceanographic descriptors applied in the method are standard outputs from coastal hydrodynamical models. Provided that validated and high resolution model output is available for a given area, the technique is thus adaptable to other morphologically and oceanographically complicated estuarine and coastal areas where toxic algae monitoring is necessary.

KW - Estuarine management

KW - Homogeneous water masses

KW - Limfjorden

KW - Toxic algae management

KW - Transitional waters

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DO - 10.1016/j.marpolbul.2021.113004

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AN - SCOPUS:85115915678

SN - 0025-326X

VL - 173

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

IS - Part A

M1 - 113004

ER -

Methodology for defining homogeneous water bodies for management purposes

Abstract

Keywords

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