Effects of hydraulic shellfish harvesting on benthic communities and sediment chemistry 2009-2013
The effects of hydraulic shellfish harvesting on the ecology of biological communities and chemistry of benthic sediments were investigated through a series of experiments conducted over a 5-year period from 2009 to 2013. Studies on a variety of different clam beds were undertaken in collaboration with local shellfish harvesters. Sediment samples were collected over the summer and early fall (June to October) and sorted to identify and count benthic organisms and to measure chemical parameters (e.g., pH, oxygen, aragonite saturation state), at the sediment/water interface. Comparisons of dredged to not dredged seafloor found that the effects of season (date of sampling) and location (sediment grain size) exceeded those of shellfish harvesting. Numbers of newly settled bivalves were often higher on recently harvested bottom. Shallow inshore marine communities appear to be highly resilient to disturbance, whether natural or manmade. Shellfish harvesting had only minor impacts on the ecology of seafloor communities and on chemistry of marine sediments.
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https://console.cloud.google.com/storage/browser/nmfs_odp_nefsc/PARR/EAD/ASEB/26577
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GCMD Keyword Forum Page
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Full Metadata Record
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| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{ "fn": "Mercaldo-Allen, Renee", "@type": "vcard:Contact", "hasEmail": "mailto:renee.mercaldo-allen@noaa.gov" } |
| describedByType | application/octet-steam |
| description | The effects of hydraulic shellfish harvesting on the ecology of biological communities and chemistry of benthic sediments were investigated through a series of experiments conducted over a 5-year period from 2009 to 2013. Studies on a variety of different clam beds were undertaken in collaboration with local shellfish harvesters. Sediment samples were collected over the summer and early fall (June to October) and sorted to identify and count benthic organisms and to measure chemical parameters (e.g., pH, oxygen, aragonite saturation state), at the sediment/water interface. Comparisons of dredged to not dredged seafloor found that the effects of season (date of sampling) and location (sediment grain size) exceeded those of shellfish harvesting. Numbers of newly settled bivalves were often higher on recently harvested bottom. Shallow inshore marine communities appear to be highly resilient to disturbance, whether natural or manmade. Shellfish harvesting had only minor impacts on the ecology of seafloor communities and on chemistry of marine sediments. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "https://console.cloud.google.com/storage/browser/nmfs_odp_nefsc/PARR/EAD/ASEB/26577", "accessURL": "https://console.cloud.google.com/storage/browser/nmfs_odp_nefsc/PARR/EAD/ASEB/26577", "mediaType": "text/html", "description": "5 Files: 2010 summary sheet.xlsx bivalve counts 2013.xlsx Summary Sheet 2009.xlsx Summary Sheet 2011.xlsx Summary Sheet 2012.xlsx", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "GCMD Keyword Forum Page", "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords", "mediaType": "text/html", "description": "Global Change Master Directory (GCMD). 2026. GCMD Keywords, Version 24. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Full Metadata Record", "accessURL": "https://www.fisheries.noaa.gov/inport/item/26577", "mediaType": "text/html", "description": "View the complete metadata record on InPort for more information about this dataset.", "describedByType": "application/octet-stream" } ] |
| identifier | https://data.noaa.gov/waf/NOAA/nmfs/nefsc/iso/xml/26577.xml |
| keyword |
[ "aquaculture", "disturbance", "effects", "environment", "hydraulic shellfish dredging", "sediment chemistry", "2009-2013", "June to October", "Long Island Sound", "Milford Conneticut", "inshore coastal zone", "benthic", "DOC/NOAA/NMFS/NEFSC > Northeast Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce", "Aquaculture Systems & Ecology Branch (ASEB)" ] |
| landingPage | https://www.fisheries.noaa.gov/inport/item/26577 |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2026-04-30T00:00:00.000+00:00 |
| publisher |
{ "name": "Northeast Fisheries Science Center", "@type": "org:Organization" } |
| rights | otherRestrictions, unclassified |
| spatial | -73.04065,41.16618333333,-73.09153333333,41.20613333333 |
| temporal | 2009-05-28T00:00:00+00:00/2013-09-04T00:00:00+00:00 |
| theme |
[ "geospatial" ] |
| title | Effects of hydraulic shellfish harvesting on benthic communities and sediment chemistry 2009-2013 |
