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Ora Johannsson
Ora Johannsson
Adjunct Professor, University of British Columbia; Emeritus Research Scientist, Department of
Verifierad e-postadress på zoology.ubc.ca
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Lake Ontario: food web dynamics in a changing ecosystem (1970 2000)
EL Mills, JM Casselman, R Dermott, JD Fitzsimons, G Gal, KT Holeck, ...
Canadian Journal of Fisheries and Aquatic Sciences 60 (4), 471-490, 2003
4472003
Large nonlethal effects of an invasive invertebrate predator on zooplankton population growth rate
KL Pangle, SD Peacor, OE Johannsson
Ecology 88 (2), 402-412, 2007
2832007
Benthic and pelagic secondary production in Lake Erie after the invasion of Dreissena spp. with implications for fish production
OE Johannsson, R Dermott, DM Graham, JA Dahl, ES Millard, DD Myles, ...
Journal of Great Lakes Research 26 (1), 31-54, 2000
2002000
Sudden disappearance of the amphipod Diporeia from eastern Lake Ontario, 1993–1995
R Dermott
Journal of Great Lakes Research 27 (4), 423-433, 2001
1632001
Diet of Mysis relicta in Lake Ontario as revealed by stable isotope and gut content analysis
OE Johannsson, MF Leggett, LG Rudstam, MR Servos, ...
Canadian Journal of Fisheries and Aquatic Sciences 58 (10), 1975-1986, 2001
1522001
Changes in the nearshore and offshore zooplankton communities in Lake Ontario: 1981–88
OE Johannsson, EL Mills, R O'Gorman
Canadian Journal of Fisheries and Aquatic Sciences 48 (8), 1546-1557, 1991
1491991
Tribute to R. G. Boutilier: The effect of size on the physiological and behavioural responses of oscar, Astronotus ocellatus, to hypoxia
KA Sloman, CM Wood, GR Scott, S Wood, M Kajimura, OE Johannsson, ...
Journal of Experimental Biology 209 (7), 1197-1205, 2006
1362006
Assessing the impact of a recent predatory invader: The population dynamics, vertical distribution, and potential prey of Cercopagis pengoi in Lake Ontario
HP BenoÍt, OE Johannsson, DM Warner, WG Sprules, LG Rudstam
Limnology and Oceanography 47 (3), 626-635, 2002
1102002
Effect of lake-wide planktivory by the pelagic prey fish community in Lakes Michigan and Ontario
PS Rand, DJ Stewart, BF Lantry, LG Rudstam, OE Johannsson, AP Goyke, ...
Canadian Journal of Fisheries and Aquatic Sciences 52 (7), 1546-1563, 1995
1001995
The effects of silver on intestinal ion and acid-base regulation in the marine teleost fish, Parophrys vetulus
M Grosell, G De Boeck, O Johannsson, CM Wood
Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and …, 1999
971999
Temperature-dependent allometric models to estimate zooplankton production in temperate freshwater lakes
JD Stockwell, OE Johannsson
Canadian Journal of Fisheries and Aquatic Sciences 54 (10), 2350-2360, 1997
971997
Temporal and seasonal trends in nutrient dynamics and biomass measures in Lakes Michigan and Ontario in response to phosphorus control
TH Johengen, OE Johannsson, GL Pernie, ES Millard
Canadian Journal of Fisheries and Aquatic Sciences 51 (11), 2570-2578, 1994
931994
The use of zooplankton in a biomonitoring program to detect lake acidification and recovery
DR Marmorek, J Korman
Water, Air, and Soil Pollution 69, 223-241, 1993
851993
Mysis relicta: Assessment of Metalimnetic Feeding and Implications for Competition with Fish in Lakes Ontario and Michigan
OE Johannsson, LG Rudstam, DC Lasenby
Canadian Journal of Fisheries and Aquatic Sciences 51 (11), 2591-2602, 1994
841994
The effects of temperature and predator—prey interactions on the migration behavior and vertical distribution of Mysis relicta
BT Boscarino, LG Rudstam, S Mata, G Gal, OE Johannsson, EL Mills
Limnology and Oceanography 52 (4), 1599-1613, 2007
822007
Biogeochemical influences on the carbon isotope signatures of Lake Ontario biota
MF Leggett, MR Servos, R Hesslein, O Johannsson, ES Millard, DG Dixon
Canadian Journal of Fisheries and Aquatic Sciences 56 (11), 2211-2218, 1999
821999
Phytoplankton photosynthesis at two index stations in Lake Ontario 1987-1992: assessment of the long-term response to phosphorus control
ES Millard, DD Myles, OE Johannsson, KM Ralph
Canadian Journal of Fisheries and Aquatic Sciences 53 (5), 1092-1111, 1996
801996
The changing pelagia of Lake Ontario(1981 to 1995): A report of the DFO Long-Term Biomonitoring(Bioindex) Program
OE Johannsson, ES Millard, KM Ralph, DD Myles, DM Graham, ...
Can. Tech. Rep. Fish. Aquat. Sci./Rapp. Tech. Can. Sci. Halieut. Aquat., 287, 1998
781998
Filtering Impacts of an Introduced Bivalve (Dreissena polymorpha) in a Shallow Lake: Application of a Hydrodynamic Model
HJ MacIsaac, OE Johannsson, J Ye, WG Sprules, JH Leach, ...
Ecosystems 2, 338-350, 1999
751999
Roles of predation, food, and temperature in structuring the epilimnetic zooplankton populations in Lake Ontario, 1981–1986
OE Johannsson, R OˈGorman
Transactions of the American fisheries Society 120 (2), 193-208, 1991
751991
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Artiklar 1–20