Search Results - "Welch, Harold E"

Annual cycle in abundance, distribution, and size in relation to hydrography of important copepod species in the western Arctic Ocean by ASHJIAN, Carin J, CAMPBELL, Robert G, WELCH, Harold E, BUTLER, Mari, VAN KEUREN, Donna

“…A yearlong study of the zooplankton biomass and the abundance, vertical distribution, life stage proportions, and body size and condition for five target…”
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Magnification of atmospheric mercury deposition to polar regions in springtime: The link to tropospheric ozone depletion chemistry by Lu, Julia Y., Schroeder, William H., Barrie, Len A., Steffen, Alexandra, Welch, Harold E., Martin, Kathleen, Lockhart, Lyle, Hunt, Robert V., Boila, Gail, Richter, Andreas

“…Mercury—in the chemical/physical forms present in the biosphere—is a persistent, toxic, bioaccumulative pollutant that is dispersed throughout the environment…”
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Energy Flow through the Marine Ecosystem of the Lancaster Sound Region, Arctic Canada by Welch, Harold E., Bergmann, Martin A., Siferd, Timothy D., Martin, Kathleen A., Curtis, Martin F., Crawford, Richard E., Conover, Robert J., Hop, Haakon

“…This paper synthesizes the trophic dynamics of a Canadian arctic marine ecosystem in so far as it is known, using new data on primary production, zooplankton,…”
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Sea ice biological communities and nutrient dynamics in the Canada Basin of the Arctic Ocean by Melnikov, Igor A, Kolosova, Elena G, Welch, Harold E, Zhitina, Ludmila S

“…Salinity, concentrations of silicate (Si), phosphate (P), and chlorophyll a (chl a), and the species composition of floral and faunal communities were assessed…”
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Brown snow: a long-range transport event in the Canadian Arctic by Welch, Harold E, Muir, Derek C. G, Billeck, Brian N, Lockhart, W. Lyle, Brunskill, Gregg J, Kling, Hedy J, Olson, Marvin P, Lemoine, Richard M

“…Semivolatile organic compounds detected in brown-coloured snow deposited in the central Canadian Arctic during a single event in April 1988 included PAH, PCB…”
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Seasonality in Bioaccumulation of Organochlorines in Lower Trophic Level Arctic Marine Biota by Hargrave, Barry T, Phillips, Georgina A, Vass, W. Peter, Bruecker, Philip, Welch, Harold E, Siferd, Timothy D

“…Organochlorine (OC) pesticides in ice algae, phytoplankton, and microzooplankton during summer months and in meso- and macrozooplankton throughout 1993 in the…”
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Seasonality in Exchange of Organochlorines between Arctic Air and Seawater by Hargrave, Barry T, Barrie, Leonard A, Bidleman, Terry F, Welch, Harold E

“…Decreases in atmospheric concentrations of organochlorine (OC) pesticides in the Northern Hemisphere during the last decade have resulted in Arctic Ocean…”
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Occurrence of Arctic Cod (Boreogadus Saida) Schools and Their Vulnerability to Predation in the Canadian High Arctic by Welch, Harold E., Crawford, Richard E., Hop, Haakon

“…We document the occurrence of large schools of Arctic cod (Boreogadus saida) in the Barrow Strait region of the eastern Canadian Arctic during the open water…”
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Bezal Jesudason (1941-1995) by Welch, Harold E.

“…[Bezal Jesudason] began with well-organized sled trips between Resolute and Grise Fiord, about a five-day journey each way, with local Inuit guiding and…”
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A Year on the Ice: The SHEBA/JOIS Project by Welch, Harold E.

“…Our efforts to quantify the productivity and its controlling factors start with light transmission through ice and snow, because that is what drives the marine…”
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Use of Modified Diurnal Curves for the Measurement of Metabolism in Standing Water by Welch, Harold E.

“…A modification of diurnal oxygen curves is described, whereby community metabolism can be easily estimated from a succession of twice-nightly points. The…”
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Observations of Foraging Northern Fulmars (Fulmarus glacialis) in the Canadian High Arctic by Hobson, Keith A., Welch, Harold E.

“…We summarize observations of foraging northern fulmars (Fulmarus glacialis) in the Barrow Strait-Lancaster Sound region of the Northwest Territories from June…”
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Seasonal distribution of sympagic amphipods near Chesterfield Inlet, N.W.T., Canada by SIFERD, T. D, WELCH, H. E, BERGMANN, M. A, CURTIS, M. F

“…The seasonal distribution of sympagic amphipods was investigated in the Chesterfield Inlet area of northwestern Hudson Bay (63°30'N). Amphipod abundance was…”
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The Shelter Characteristics of Traditional-Styled Inuit Snow Houses by Kershaw, G. Peter, Scott, Peter A., Welch, Harold E.

“…The shelter value of snow iglus at Resolute (74°41'N, 94°54'W) in the Canadian High Arctic was assessed. After a survey of snow conditions, construction sites…”
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Does the Clam Mya Truncata Regenerate Its Siphon after Predation by Walrus? An Experimental Approach by Welch, Harold E., Martin-Bergmann, Kathleen

“…Walrus (Odobenus rosmarus) prey extensively on the bivalve Mya truncata, removing the siphons. We performed a simple experiment whereby the siphons from 27 M…”
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Metabolic Rates of Arctic Lakes by Harold E. Welch

“…A technique for calculating the respiration rates of arctic lakes during winter is presented. Respiration rates range from a low of 30 g O2m-2 yr-1 at…”
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Relationships between Assimiliation Efficiencies and Growth Efficiencies for Aquatic Consumers by Welch, Harold E.

“…Relationships between the growth efficiencies and assimilation efficiency of an animal are presented, using energy budgets compiled from the literature. Net…”
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Year on the ice: the SHEBA Project by Welch, Harold E

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Obituary: Bezal Jesudason (1941-1995) by Welch, Harold E.

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Obituary: Timothy Idlout (1916-92) by Welch, Harold E.

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