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Free Content Osmoregulation in Two Species of Palaemonetes (Crustacea: Decapoda) from Florida

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Individuals of the fresh-water shrimp Palaemonetes paludosus were held in the laboratory at a variety of salinities, after which blood samples were taken and the osmotic concentration determined by the freezing-point depression method of Gross (1954). Specimens of Palaemonetes intermedius from high salinity were held at low salinity and vice-versa prior to blood sampling and determination of osmotic concentration. Results indicate that Palaemonetes intermedius is able to regulate over a wide range of salinities while regulation in P. paludosus breaks down at salinities in excess of 20‰.

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Document Type: Research Article

Publication date: 1964-01-01

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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