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Ecology of the Opossum Shrimp (<i>Neomysis mercedis</i>) in a Lower Snake River Reservoir, Washington

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The opossum shrimp Neomysis mercedis has expanded its range from the lower Columbia River upstream 695 kilometers into Lower Granite Reservoir where it is now very abundant. We studied Neomysis ecology in the reservoir during 2011–2015 to better understand the physical and biological factors that shape their distribution as well as their potential role in the food web. Benthic densities in offshore habitats ranged from 19 to 145 mysids m-2 in shallow (2–12 m) water and from 3 to 48 mysids m-2 in deep (> 12 m) water. Water velocity, depth, substrate, and seasonal interactions were important variables for explaining variation in Neomysis densities in offshore habitats. During spring, daytime densities in shoreline habitats (< 2 m deep) [...]

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local-index unknown 70178673
local-pk unknown 70178673
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.3955/046.091.0205
series unknown Northwest Science

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journalNorthwest Science
parts
typevolume
value91
typeissue
value2
languageEnglish
citationTypeArticle

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