• Arctic SDI catalogue
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Bay Scale Assessment of Eelgrass Beds Using Sidescan and Video - Bouctouche

The assessment of the status of eelgrass (Zostera marina) beds at the bay-scale in turbid, shallow estuaries is problematic. The bay-scale assessment (i.e., tens of km) of eelgrass beds usually involves remote sensing methods such as aerial photography or satellite imagery. These methods can fail if the water column is turbid, as is the case for many shallow estuaries on Canada’s eastern seaboard. A novel towfish package was developed for the bay-scale assessment of eelgrass beds irrespective of water column turbidity. The towfish consisted of an underwater video camera with scaling lasers, sidescan sonar and a transponder-based positioning system. The towfish was deployed along predetermined transects in three northern New Brunswick estuaries. Maps were created of eelgrass cover and health (epiphyte load) and ancillary bottom features such as benthic algal growth, bacterial mats (Beggiatoa) and oysters. All three estuaries had accumulations of material reminiscent of the oomycete Leptomitus, although it was not positively identified in our study. Tabusintac held the most extensive eelgrass beds of the best health. Cocagne had the lowest scores for eelgrass health, while Bouctouche was slightly better. The towfish method proved to be cost effective and useful for the bay-scale assessment of eelgrass beds to sub-meter precision in real time.

Cite this data as: Vandermeulen H. Data of: Bay Scale Assessment of Eelgrass Beds Using Sidescan and Video - Bouctouche. Published: November 2017. Coastal Ecosystems Science Division, Fisheries and Oceans Canada, Dartmouth, N.S. https://open.canada.ca/data/en/dataset/b4c83cd2-20f2-47d8-8614-08c1c44c9d8c

Simple

Date ( RI_367 )
2017-11-07
Date ( RI_366 )
2009-08-24
RI_415
  Government of Canada; Fisheries and Oceans Canada - CESD Data Request / DSEC Demande de donnés (DFO/MPO) ( )
Bedford Institute of Oceanography, 1 Challenger Drive, PO Box 1006 , Dartmouth , Nova Scotia , B2Y 4A2 , Canada
Status
completed; complété RI_593
Maintenance and update frequency
notPlanned; nonPlanifié RI_542
Keywords ( RI_528 )
  • Marine Spatial Planning
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Oceans
Classification
unclassified; nonClassifié RI_484
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
vector; vecteur RI_635
Metadata language
eng
Character set
utf8; utf8 RI_458
Topic category
  • Oceans
Begin date
2009-08-20
End date
2009-08-24
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S
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W
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Reference system identifier
http://www.epsg-registry.org / EPSG:4326 / 8.2.6
Distribution format
  • FGDB/GDB ( 10.2.2 )

  • ESRI REST ( 10.6.1 )

  • TIFF ( 1 )

  • CSV ( N/A )

RI_412
  Government of Canada; Fisheries and Oceans Canada - CESD Data Request / DSEC Demande de donnés (DFO/MPO) ( )
Bedford Institute of Oceanography, 1 Challenger Drive, PO Box 1006 , Dartmouth , Nova Scotia , B2Y 4A2 , Canada
RI_412
  Government of Canada; Fisheries and Oceans Canada - Data Acquisition Assembly and Distribution ( )
Bedford Institute of Oceanography, 1 Challenger Drive, PO Box 1006 , Dartmouth , Nova Scotia , B2Y 4A2 , Canada
OnLine resource
Bay-scale assessment of eelgrass beds using sidescan and video ( HTTPS )

Supporting Document;HTML;eng

OnLine resource
Data Dictionary ( HTTPS )

Supporting Document;CSV;eng,fra

OnLine resource
Bay-scale assessment of eelgrass beds using sidescan and video ( HTTPS )

Dataset;FGDB/GDB;eng

OnLine resource
Bay-scale assessment of eelgrass beds using sidescan and video ( HTTPS )

Dataset;TIFF;eng

OnLine resource
Bay-scale assessment of eelgrass beds using sidescan and video ( ESRI REST: Map Server )

Web Service;ESRI REST;eng

OnLine resource
Bay-scale assessment of eelgrass beds using sidescan and video ( ESRI REST: Map Server )

Web Service;ESRI REST;fra

File identifier
b4c83cd2-20f2-47d8-8614-08c1c44c9d8c XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-02-06T01:17:17.943Z
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_408
  Government of Canada; Fisheries and Oceans Canada - CESD Data Request / DSEC Demande de donnés (DFO/MPO) ( )
Bedford Institute of Oceanography, 1 Challenger Drive, PO Box 1006 , Dartmouth , Nova Scotia , B2Y 4A2 , Canada
 
 

Overviews

overview
bouctouchethumb.PNG
overview

Spatial extent

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Keywords


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