Pathogens associated with impounded Pacific herring Clupea harengus pallasi, with emphasis on viral erythrocytic necrosis (VEN) and atypical Aeromonas salmonicida
نویسندگان
چکیده
منابع مشابه
Methods for conducting bioassays using embryos and larvae of Pacific herring, Clupea pallasi.
The rapid decrease of several stocks of Pacific herring, Clupea pallasi, in Puget Sound, Washington, has led to concerns about the effects of industrial and nonpoint source contamination on the embryo and larval stages of this and related forage fish species. To address these concerns, the state of Washington and several industries have funded efforts to develop embryo and larval bioassay proto...
متن کاملTwo egg-derived molecules in sperm motility initiation and fertilization in the Pacific herring (Clupea pallasi).
Sperm of the Pacific herring are immotile at spawning. Two egg-derived molecules are capable of initiating sperm motility. One is herring sperm activating protein(s) (HSAPs) and the other is sperm motility initiation factor (SMIF). These two motility initiators differ in their location and association with the chorion, and in their isoelectric points and molecular weights. In this study we have...
متن کاملTagging along: association among individual Pacific herring (Clupea pallasi) revealed by tagging1
More than 570 000 Pacific herring (Clupea pallasi) were tagged with external anchor tags during 429 tag release sessions between 1979 and 1992. Individually numbered tags were released in quantities of 1000–2000 at a time and recovered from commercial fisheries. Often several tags were recovered at the same time and place, and some recoveries occurred as “matches”, where two or more tags from a...
متن کاملFourteen new microsatellite markers for Atlantic herring Clupea harengus.
Fourteen new microsatellite loci were developed and tested on Atlantic herring Clupea harengus with 39 individuals from Iceland and 49 individuals from Norway. The microsatellites, which contain di, tri and tetranucleotide repeats, are polymorphic (7-30 alleles), with observed heterozygosity ranging between 0·69 and 1·00 and expected heterozygosity between 0·55 and 0·97.
متن کاملPathogenicity of Ichthyophonus hoferi for laboratory-reared Pacific herring Clupea pallasi and its early appearance in wild Puget Sound herring.
Laboratory-reared pathogen-free Pacific herring were exposed to pure cultures of Ichthyophonus hoferi, and reproduced the disease seen in naturally infected fish--thus fulfilling Koch's Postulates. Pathogen-free herring used in this study were reared from artificially spawned eggs incubated in filtered, UV-sterilized seawater, eliminating the variables associated with multiple infections, which...
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ژورنال
عنوان ژورنال: Diseases of Aquatic Organisms
سال: 1988
ISSN: 0177-5103,1616-1580
DOI: 10.3354/dao005093