Parasite Population Regulation: Lethal and Sublethal Effects of Leptorhynchoides thecatus (Acanthocephala: Rhadinorhynchidae) on Hyalella azteca (Amphipoda)
نویسندگان
چکیده
منابع مشابه
Comparison of Leptorhynchoides thecatus (Acanthocephala) recruitment into green sunfish and largemouth bass populations.
The degree to which host suitability is a reflection of host community structure in generalist parasites was studied experimentally in the common fish acanthocephalan Leptorhynchoides thecatus. Previous study has shown that green sunfish (Lepomis cyanellus) are required, and largemouth bass (Micropterus salmoides) are suitable (but not required) hosts, where they occur sympatrically in natural ...
متن کاملRedescription of Hyalella Azteca from Its Type Locality, Vera Cruz, Mexico (Amphipoda : Hyalellidae)
Hyalella azteca is a species complex distributed in North, Central, and northern South America. The identity of the species has always been a problem, especially because the original description by Saussure (1858) from a "cistern" in Vera Cruz, Mexico, is poor, and the figures are not clear. Since then, mention of the type material or specimens from the type locality has not been made by invest...
متن کاملAgricultural pesticides in Mississippi Delta oxbow lake sediments during autumn and their effects on Hyalella azteca.
Agricultural pesticide contamination of sediments from five Mississippi Delta oxbow lakes and their effects and bioavailablity to Hyalella azteca were assessed during a low-application season-autumn. Three reference oxbow lakes were located in the White River National Wildlife Refuge (WRNWR), Arkansas and two impaired lakes, according to the US Environmental Agency Sect. 303 (d) Clean Water Act...
متن کاملExposure-related effects on Cd bioaccumulation explain toxicity of Cd-phenanthrene mixtures in Hyalella azteca.
Little is known regarding mixture effects of metals and polynuclear aromatic hydrocarbon (PAHs) under environmentally relevant exposure regimes. Standard U.S. Environmental Protection Agency (U.S. EPA) procedures were applied and extended to test effects of phenanthrene (Phen) on sediment-Cd uptake, aqueous-Cd uptake, and Cd-elimination kinetics in the amphipod Hyalella azteca. In sediment expo...
متن کاملthe effects of planning on accuracy and complexity of iranian efl students’ written narrative task performance
this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...
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ژورنال
عنوان ژورنال: The Journal of Parasitology
سال: 1980
ISSN: 0022-3395
DOI: 10.2307/3280602