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Showing 1 to 9 of 9 for “"Ocean quahog"”.
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An Analysis of Dredge Efficiency for Surfclam and Ocean Quahog Commercial Dredges
… for Atlantic surfclam (Spisula solidissima) and ocean quahog (Arctica islandica) populations using commercial hydraulic dredges. The Patch Model was formulated to estimate gear efficiency and organism density from the data. The range of efficiencies estimated is substantial, leading to …
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THE INFLUENCE OF SPATIALHETEROGENEITY ON OCEAN QUAHOG (ARCTICA ISLANDICA) POPULATION DYNAMICS ALONG THE MID-ATLANTIC BIGHT
<p>The ocean quahog (<em>Arctica islandica</em>) support an economically important fishery in the US, though little is known about their life history traits. To determine how these traits vary geographically, the age frequencies and growth rates from two New Jersey sites (NJ1 & NJ2) as well as …
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Biological-physical interactions on Georges Bank : plankton transport and population dynamics of the ocean quahog, Arctica islandica
Advective losses of bank water during winter because of strong wind forcing were hypothesized to be a significant factor limiting recruitment of Georges Bank cormnunities. This hypothesis was examined using biological-physical models of bank circulation with wind, tidal, and density driven …
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Evidence of Multidecadal Recruitment in the Ocean Quahog, <i>Arctica islandica</i> in the Western Atlantic Ocean
<p>Ocean quahogs (<em>Arctica islandica</em>) are the longest-lived, non-colonial animals known today, with a maximum life span exceeding 500 years. Limited information is available regarding recruitment, making the sustainable management of this valuable fishery a challenge. The objective of this …
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Biological-physical interactions on Georges Bank : plankton transport and population dynamics of the ocean quahog, Arctica islandica
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1997.
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INVESTIGATION OF DEAD OCEAN QUAHOGS (ARCTICA ISLANDICA) SHELLS ON THE MID-ATLANTIC BIGHT CONTINENTAL SHELF
<p>Ocean quahogs, <em>Arctica islandica</em>, are a long-lived, widely dispersed, biomass dominate in the Mid-Atlantic; therefore, quahog shells are valuable resources for studying climate change over time. Recently, dead ocean quahog shells were discovered south and inshore of the present …
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Projected Range Shift of the Atlantic Surfclam, Spisula solidissima, and the Ocean Quahog, Arctica islandica, Under Climate-Induced Benthic Warming: Forecasting Fishery Influence in the Mid-Atlantic Bight Throughout the 21st Century
… surfclam, <em>Spisula solidissima</em>, and ocean quahog, <em>Arctica islandica,</em> are biomass dominant bivalve species on the eastern North American continental shelf, both supporting lucrative commercial fisheries in the Mid-Atlantic with a combined value of $53.6 million in ex-vessel …
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THE INFLUENCE OF RANGE SHIFTS AND WIND ENERGY ON THE ATLANTIC SURFCLAM (SPISULA SOLIDISSIMA) AND OCEAN QUAHOG (ARCTICA ISLANDICA) FISHERIES ON THE U.S. OUTER CONTINENTAL SHELF
… north and offshore within the range of the ocean quahog, <em>Arctica islandica</em>. An ecotone now exists over much of the offshore range of the surfclam in which surfclams and ocean quahogs co-occur. Regulations prohibit fishers from landing both species in the same catch, limiting fishing …
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Development and application of the mollusc Arctica islandica as a paleoceanographic tool for the North Atlantic ocean
… time-series for the colder, higher-latitude oceans. In this thesis, the long-lived (+100 years) boreal mollusc (Bivalvia) Arctica islandica is shown to be practical for this purpose in the northern North Atlantic Ocean. The evidence, compiled here, demonstrates that the carbonate shell of …