Global ETD Search
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Showing 1 to 8 of 8 for “"grass shrimp"”.
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Population Genetics Analysis of the Grass Shrimp Palaemonetes Pugio Using Single Strand Conformation Polymorphism
<p>Little is known about the genetic structure of grass shrimp, Palaemonetes pugio, populations or the effects the parasite Microphallus turgidus has on it. The objective of this study was to determine the amount of genetic diversity of the shrimp populations based on locality and parasite load. In …
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The lethal and sublethal effects of aldicarb on the estuarine grass shrimp, Palaemonetes pugio
… such as agricultural runoff. The estuarine grass shrimp, Palaemonetes pugio, has been shown to be a sensitive indicator of pesticide exposure. In this study, emphasis was placed on the quantification of the lethal and sublethal effects of aldicarb on three different life stages of P. pugio. …
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Effects of Ammonia, Salinity and Oxygen on the Growth and Energetics of the Grass Shrimp, <i>Palaemonetes pugio</i>
<p>The growth and energy budget of juvenile grass shrimp,<em> Palaemonetes pugio</em>, were examined under various combinations of ammonia, salinity and dissolved oxygen. Experiments were performed to determine the effects of multiple stresses on the growth and physiological processes of the …
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Behavioral Analysis of a Digenetic Trematode Cercaria (Microphallus Turgidus) in Relation to The Microhabitat of Grass Shrimp (Palaemonetes Spp.)
The hydrobiid snail and grass shrimp hosts of the microphallid trematode Microphallus turgidus are found in specific microhabitats. The primary second intermediate host of this parasite is the grass shrimp Palaemonetes pugio. The behavior of trematode cercaria often reflects the habitat and …
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The toxicity of ammonia to the marine organisms, sheepshead minnow (Cyprinodon variegatus), mysid (Mysidopsis bahia), and grass shrimp (Palaemonetes pugio)
… invertebrates, the mysid (Mysidopsis bahia), and grass shrimp (Palaemonetes pugio). The acute LC 50 and the no-observed-effect-concentration (NOEC) were determined for each organism and compared to data in the literature. The species mean acute values (SMA V) for the sheepshead minnow (13.5% …
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Effects of the Parasite <em>Microphallus turgidus</em> on the Predation, Swimming Endurance, and Activities of the Grass Shrimp <em>Palaemonetes pugio</em>
… susceptibility of its intermediate host, the grass shrimp, <em>Palaemonetes</em> <em>pugio</em>. I hypothesized that the presence of a large quantity of encysted parasites (>30) alters both the activity and swimming ability of infected grass shrimp, and as such alters its susceptibility to …
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Investigating Nekton Response to Changing Salinities in the Mississippi Sound: An Experimental and Statistical Approach
… survival, biomass change, and caloric content of grass shrimp (<em>Palaemon spp.</em>), an important prey species, under different combinations of salinity and temperature. Salinities between 2-20 and a temperature of 26°C were optimal for grass shrimp, and survival results were used to construct …
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A comparison of individual-based and matrix projection models to applied to fish population and community dynamics
… relatively simple stage-based matrix models for grass shrimp and gulf killifish populations. Equilibrium analysis of the simple matrix models was insufficient for predicting population responses. This study showed that stochastic, density-dependent matrix projection models were able to mimic …