Spat collectors were constructed based on the “Spat Rack” design used by the University of North Carolina - Wilmington’s Oyster Spat Monitoring Project (Each collector consisted of the following materials: Burton’s Island – Rehoboth Bay 4 ceramic tiles ¾” PVC pipe 4 – 2” pieces 4 – 8” pieces Cable ties were used to attach the tiles to 2 – 4” pieces, with holes drilled the support posts. Spat Collector Two ceramic tiles were attached to each post, with the smooth side facing in and Burton’s Island – Indian River Bay Construction the rough side facing out. Materials needed to build the frame Assembling the frame - adding support of the spat collector posts for the ceramic tiles Strawberry Landing – Little Assawoman Bay Sites for deployment of spat collectors in the Delaware Inland Bays ()Ģ | DSU-CAST-AQUA#2 | Evaluation of Oyster Spat Settlement in the Delaware Inland Bays - Design and Implementation SPAT COLLECTION METHODS These locations were chosen based on their proximity to natural sets of oysters on rip-rap, that were easily assessable by car, and were either state owned or private land in which permission was granted to set up the collectors. In order to evaluate the production of spat in the Delaware Inland Bays, three locations were selected in each of the Inland Bays ( Rehoboth Bay – Massey’s Landing, Savages Ditch, and the Rehoboth Bay side of Burton’s Island Indian River Bay – the Indian River side of Burton’s Island, Marshy Hope Way in Ocean View, and Holt’s Landing State Park and, Little Assawoman Bay – Sassafrass Landing, Strawberry Landing, and Mulberry Landing in the Assawoman Wildlife Area). To support this goal, the availability, distribution and Delaware Center for the Inland Bays settlement of naturally occurring spat throughout the Delaware Inland Bays must be determined. The ultimate goal of this research is to create a self-sustaining habitat with natural oyster Delaware Inland Bays courtesy of the sets in the Delaware Inland Bays.
#Oyster spat collector free#
Delaware’s Inland Bays have been virtually free of a natural population of oysters for more than thirty years. Prior to the arrival of European settlers, oysters abounded throughout the Delaware Inland Bays. The loss of native oyster (Crassostrea virginica) populations within the Delaware Inland Bays is a recognized problem. A general consensus among state resource managers has been that since the demise of the Inland Bay oyster industry in the 1970s, high salinities, predation, and the potential for disease outbreaks made the bays an unsuitable environment for oysters (Ewart, 2013). Because these bays are very shallow (three to eight feet in depth) and are poorly flushed by tidal movement, they are especially sensitive to environmental changes (Delaware Sea Grant – NOAA 2003).
These bays comprise 32 square miles (20,480 acres) of surface waters within a 320 square mile watershed that is rapidly undergoing development (Ewart, 2013). Use the form’s “question or comment” field to specify the requested publication.Evaluation of Oyster Spat Settlement in the Delaware Inland Bays Design and Implementation BACKGROUNDĭelaware’s Inland Bays, consisting of three interconnected bodies of water in southeastern Sussex County, are increasingly in need of the ecological services that oysters offer. Request alternate formats To request an alternate format of a publication, complete the Government of Canada Publications email form. The catalogue number and ISSN for the print edition appear in this electronic version.ĭartmouth - Nova Scotia : Fisheries and Oceans Canada c2003. Denny.Ĭanadian technical report of fisheries and aquatic sciences1488-5379No. Oyster spat (Crassostrea virginica) collection at Gillis Cove, Cape Breton Island, Nova Scotia : an analysis of collector efficacy / by K.R. Publication information Department/AgencyĬanada. Permanent link to this Catalogue record: publications.gc.ca/pub?id=9.574964&sl=0
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