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Service Description: From Ocean Ecology: Generally situated in shallows and along complex shorelines highly valued by recreational users, eelgrass meadows are both ecologically valuable and potentially threatened. They provide rearing habitats for the juvenile stages of many species of fish, foraging habitats for both migratory and resident bird species, and recent research also suggests that eelgrass plays a critical role in carbon sequestration. However, our understanding of the specifics of their ecological functions, including vulnerability to human activities and climate change, is still limited.
Chatham Sound is situated in the northern part of British Columbia, located between Dundas and Stephens Islands and the Tsimpsean Peninsula near Prince Rupert and bordering on Alaska. As a result of the fresh water discharges of the Nass and Skeena Rivers, the whole of Chatham Sound is essentially a large estuary. Recent studies at the Lucy Islands found substantial amounts of previously unmapped subtidal eelgrass in Chatham Sound. Clearly, we are still learning about the geographical extent and roles of eelgrass in the Chatham Sound estuary system. The objectives of the Chatham Sound Eelgrass Study were:
- To provide relevant management authorities with high quality data and recommendations regarding eelgrass presence in priority areas on the North Coast of BC.
- To assess the overall abundance and health of subtidal eelgrass in the Chatham Sound estuary region.
- To compare the status of eelgrass beds in the region based on riverine influence, recreational use, and industrial activities.
- To assess temporal changes in eelgrass beds at those sites where data has been collected previously.
- To provide baseline data for subtidal eelgrass beds in regions where the British Columbia Marine Conservation Analysis has indicated that eelgrass is a priority habitat.
- To provide data for the future development of an oceanographic model relating changes in riverine sediment deposition resulting from global climate change with eelgrass bed health.
More information on the study can be found online at: http://www.oceanecology.ca/publications/Chatham%20Sound%20Eelgrass%20Study%20Final%20Report.pdf
Data Collected: 2012-07-22 to 2012-09-5
Data Publication Date: 2013-03-17
Update Cycle: None Planned
MaPP Update Cycle: As RequestedData Acquired: 2013-11-29
Last Update:2013-11-29; new data added
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Copyright Text: Data Collector: Ocean Ecology 2013. Chatham Sound Eelgrass Study Final Report. Prepared for WWF-Canada; Distributor: World Wildlife Fund (WWF) Canada
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Author: MaPP
Comments: From Ocean Ecology: Generally situated in shallows and along complex shorelines highly valued by recreational users, eelgrass meadows are both ecologically valuable and potentially threatened. They provide rearing habitats for the juvenile stages of many species of fish, foraging habitats for both migratory and resident bird species, and recent research also suggests that eelgrass plays a critical role in carbon sequestration. However, our understanding of the specifics of their ecological functions, including vulnerability to human activities and climate change, is still limited.
Chatham Sound is situated in the northern part of British Columbia, located between Dundas and Stephens Islands and the Tsimpsean Peninsula near Prince Rupert and bordering on Alaska. As a result of the fresh water discharges of the Nass and Skeena Rivers, the whole of Chatham Sound is essentially a large estuary. Recent studies at the Lucy Islands found substantial amounts of previously unmapped subtidal eelgrass in Chatham Sound. Clearly, we are still learning about the geographical extent and roles of eelgrass in the Chatham Sound estuary system. The objectives of the Chatham Sound Eelgrass Study were:
- To provide relevant management authorities with high quality data and recommendations regarding eelgrass presence in priority areas on the North Coast of BC.
- To assess the overall abundance and health of subtidal eelgrass in the Chatham Sound estuary region.
- To compare the status of eelgrass beds in the region based on riverine influence, recreational use, and industrial activities.
- To assess temporal changes in eelgrass beds at those sites where data has been collected previously.
- To provide baseline data for subtidal eelgrass beds in regions where the British Columbia Marine Conservation Analysis has indicated that eelgrass is a priority habitat.
- To provide data for the future development of an oceanographic model relating changes in riverine sediment deposition resulting from global climate change with eelgrass bed health.
More information on the study can be found online at: http://www.oceanecology.ca/publications/Chatham%20Sound%20Eelgrass%20Study%20Final%20Report.pdf
Data Collected: 2012-07-22 to 2012-09-5
Data Publication Date: 2013-03-17
Update Cycle: None Planned
MaPP Update Cycle: As RequestedData Acquired: 2013-11-29
Last Update:2013-11-29; new data added
Subject: Point locations that dispaly the presence / absence of subtidal eelgrass (Zostera marina) at specific sites.
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Keywords: Eelgrass,Chatham Sound,subtidal,presence
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