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The recolonization of Lake Tahoe by Bosmina longirostris: Evaluating the importance of reduced My sis relicta populations 1
Author(s) -
Threlkeld Stephen T.
Publication year - 1981
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1981.26.3.0433
Subject(s) - bosmina , zooplankton , cladocera , diel vertical migration , branchiopoda , ecology , bay , plankton , environmental science , crustacean , population , oceanography , biology , fishery , geography , geology , demography , sociology
On 28 August 7978, Bosmina longirostris (Crustacea: Cladocera) reappeared in the plankton of Lake Tahoe, following an absence of more than 3 years and a reduction in Mysis relicta density to 27·m ‒2 from about 380·m ‒2 in 1975. Bosmina seems to have been reintroduced by wind‐induced advection from Emerald Bay, a semi‐isolated embayment of the lake, suggesting the importance of chance events to zooplankton community structure. Demographic analyses of Bosmina population dynamics from 1967–1978 in Lake Tahoe indicate that reduced populations of M. relicta were not solely responsible for the timing of the Bosmina reappearance.