Effects of hydraulic shellfish harvesting on benthic communities and sediment chemistry 2009-2013

Metadata Updated: February 8, 2018

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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Metadata Date June 2, 2017
Metadata Created Date March 28, 2016
Metadata Updated Date February 8, 2018
Reference Date(s) (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date June 2, 2017
Metadata Created Date March 28, 2016
Metadata Updated Date February 8, 2018
Reference Date(s) (publication)
Responsible Party (); Northeast Fisheries Science Center (Point of Contact, Custodian)
Contact Email
Access Constraints Access Constraints: NEFSC Data Access Constraint: If data is stored on an internal NEFSC network, the requester may not have direct access to query the data unless they are also authorized for network access. | Use Constraints: not applicable
Bbox East Long -73.04065
Bbox North Lat 41.20613333333
Bbox South Lat 41.16618333333
Bbox West Long -73.09153333333
Coupled Resource
Frequency Of Update notPlanned
Guid gov.noaa.nmfs.inport:26577
Harvest Object Id 15149bf8-ee7b-436f-948d-39d041b24595
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Metadata Language eng
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2009-05-28
Temporal Extent End 2013-09-04

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