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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1111/jfd.13539
|2 doi
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|a pubmed24n1104.xml
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|a DE-627
|b ger
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|e rakwb
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|a eng
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1 |
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|a Lepak, Jesse M
|e verfasserin
|4 aut
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|a Rapid proliferation of the parasitic copepod, Salmincola californiensis (Dana), on kokanee salmon, Oncorhynchus nerka (Walbaum), in a large Colorado reservoir
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 09.12.2021
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|a Date Revised 14.12.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021 John Wiley & Sons Ltd.
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|a Ecologically and economically valuable Pacific salmon and trout (Oncorhynchus spp.) are widespread and susceptible to the ectoparasite Salmincola californiensis (Dana). The range of this freshwater copepod has expanded, and in 2015, S. californiensis was observed in Blue Mesa Reservoir, Colorado, USA, an important kokanee salmon (O. nerka, Walbaum) egg source for sustaining fisheries. Few S. californiensis were detected on kokanee salmon in 2016 (<10% prevalence; 2 adult S. californiensis maximum). By 2020, age-3 kokanee salmon had 100% S. californiensis prevalence and mean intensity exceeding 50 adult copepods. Year and kokanee salmon age/maturity (older/mature) were consistently identified as significant predictors of S. californiensis prevalence/intensity. There was evidence that S. californiensis spread rapidly, but their population growth was maximized at the initiation (the first 2-3 years) of the invasion. Gills and heads of kokanee salmon carried the highest S. californiensis loads. S. californiensis population growth appears to be slowing, but S. californiensis expansion occurred concomitant with myriad environmental/biological factors. These factors and inherent variance in S. californiensis count data may have obscured patterns that continued monitoring of parasite-host dynamics, when S. californiensis abundance is more stable, might reveal. The rapid proliferation of S. californiensis indicates that in 5 years a system can go from a light infestation to supporting hosts carrying hundreds of parasites, and concern remains about the sustainability of this kokanee salmon population
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|a Journal Article
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|a gill lice
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|a intensity
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| 650 |
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|a invasion
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| 650 |
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|a maturity
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| 650 |
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4 |
|a prevalence
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| 700 |
1 |
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|a Hansen, Adam G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hooten, Mevin B
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Brauch, Daniel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vigil, Estevan M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of fish diseases
|d 1998
|g 45(2022), 1 vom: 01. Jan., Seite 89-98
|w (DE-627)NLM098166034
|x 1365-2761
|7 nnns
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| 773 |
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|g volume:45
|g year:2022
|g number:1
|g day:01
|g month:01
|g pages:89-98
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|u http://dx.doi.org/10.1111/jfd.13539
|3 Volltext
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