Deterioration of the Littoral–Benthic Ecosystem Following Recent Expansion of Signal Crayfish (Pacifastacus leniusculus) in the World’s Clearest Large Lake
Deterioration of the Littoral–Benthic Ecosystem Following Recent Expansion of Signal Crayfish (Pacifastacus leniusculus) in the World’s Clearest Large Lake
复制标题
世界上最清澈的大湖中信号小龙虾 (Pacifastacus leniusculus) 最近的扩张导致滨海底栖生态系统恶化
DOI:
10.1007/s10021-023-00846-0
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发表时间:
2023
期刊:
影响因子:
3.7
通讯作者:
Chandra, Sudeep
中科院分区:
文献类型:
--
作者:
Scordo, Facundo;Girdner, Scott F.;San Pedro, Aldo;Seitz, Carina;Chandra, Sudeep
Some biological invasions can result in algae blooms in the nearshore of clear lakes. We studied if an invasive crayfish (Pacifastacus leniusculus) modified the biomass and community composition of benthic macroinvertebrates and therefore led to a trophic cascade resulting in increased periphyton biomass, elevated littoral primary productivity, and benthic algae bloom in a lake with remarkable transparency [Crater Lake, Oregon, USA]. After quantifying the changes in the spatial distribution of invasive crayfish over a 13-year period, we compared biomass and community composition of littoral–benthic macroinvertebrates, periphyton biovolume, community composition, nutrient limitation, and the development of benthic algae bloom in locations with high and low crayfish density. In addition, we determined if the alteration in community structure resulted in directional changes to gross primary production and ecosystem respiration. The extent of crayfish distribution along the shoreline of Crater Lake doubled over a 13-year period, leaving less than 20% of the shoreline free from crayfish. At high crayfish density sites, benthic macroinvertebrate biomass was 99% lower, and taxa richness was 50% lower than at low crayfish areas. High crayfish sites show tenfold greater periphyton biovolume, sixfold higher periphyton biomass (chlorophylla), twofold higher metabolic productivity, and the presence of large filamentous algae (Cladophorasp.). The invasion of crayfish had negative consequences for a lake protected under the management of the USA National Park Service, with direct impacts on many levels of ecological organization.
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DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
Per Nyström;C. Brönmark;W. Granéli
通讯作者:
W. Granéli
DOI:
10.3739/rikusui.70.261
发表时间:
2009
期刊:
Japanese Journal of Limnology (Rikusuigaku Zasshi)
影响因子:
--
作者:
西川潮;今田美穂;赤坂宗光;高村典子
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高村典子
DOI:
10.1002/lom3.10471
发表时间:
2022
期刊:
Limnology and Oceanography: Methods
影响因子:
--
作者:
Lottig, Noah R.;Phillips, Joseph S.;Batt, Ryan D.;Scordo, Facundo;Williamson, Tanner J.;Carpenter, Stephen R.;Chandra, Sudeep;Hanson, Paul C.;Solomon, Chistopher T.;Vanni, Michael J.
通讯作者:
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DOI:
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发表时间:
2006
期刊:
影响因子:
--
作者:
J. Mccarthy;C. Hein;J. Olden;M. J. Zanden
通讯作者:
M. J. Zanden
影响因子:
1.6
作者:
E. Larson;Laura A Twardochleb;J. Olden
通讯作者:
J. Olden