Search Results - "Hayashi, Hidetake"

Stable Isotope Study on Seasonal Food Web Dynamics in a Eutrophic Lake by Yoshioka, Takahito, Wada, Eitaro, Hayashi, Hidetake

“…Phytoplankton, zooplankton, benthic invertebrates, and pond smelt were collected in a eutrophic lake (Lake Suwa, Japan) from spring to autumn in 1986 and 1987…”
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Estimation of feeding history by measuring carbon and nitrogen stable isotope ratios in hair of Asiatic black bears by Mizukami, Rumiko N, Goto, Mitsuaki, Izumiyama, Shigeyuki, Hayashi, Hidetake, Yoh, Muneoki

“…To investigate feeding habits, carbon and nitrogen stable isotope ratios were measured in hair sampled from Asiatic black bears (Ursus thibetanus) inhabiting…”
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Sulfate reduction in profundal sediments in Lake Kizaki, Japan by LI, J.-H, TAKII, S, KOTAKEMORI, R, HAYASHI, H

“…The sulfate reduction rate was measured for almost four years in the profundal sediments of Lake Kizaki, a mesotrophic lake in Central Japan. The rate was…”
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Seasonal changes in ribosomal RNA of sulfate-reducing bacteria and sulfate reducing activity in a freshwater lake sediment by Li, Jian-hua, Purdy, Kevin J., Takii, Susumu, Hayashi, Hidetake

“…Abstract Seasonal changes in the population of sulfate-reducing bacteria (SRB) in the profundal sediments of a freshwater lake, Lake Kizaki, Japan, were…”
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Hepatotoxin (microcystin) and neurotoxin (anatoxin-a) contained in natural blooms and strains of cyanobacteria from Japanese freshwaters by Park, H D, Watanabe, M F, Harda, K, Nagai, H, Suzuki, M, Watanabe, M, Hayashi, H

“…Amounts of hepatotoxic microcystin and neurotoxic anatoxin-a were estimated in natural blooms and strains of cyanobacteria from freshwaters in Japan. A…”
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Long-chain anteiso compound series found in acidified freshwater lake sediments in Japan: Lake Tazawa-ko by Fukushima, Kazuo, Mochizuki, Makoto, Hayashi, Hidetake, Ishikawa, Rie, Uemura, Hitoshi, Ogura, Kazuko, Tanaka, Atsushi

“…Lipid compounds in sediments from an inorganically acid freshwater Lake Tazawa-ko in Japan were analyzed. Of first remarked was the occurrence of series of…”
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Impact of whitefish on an enclosure ecosystem in a shallow eutrophic lake: changes in nutrient concentrations, phytoplankton and zoobenthos by Iwakuma, Toshio, Hayashi, Hidetake, Yasuda, Ikuko, Hanazato, Takayuki, Takada, Kaori

“…Large bag-type (75 m super(3)) and tube-type (105 m super(3)) enclosures were set up in the shallow eutrophic Lake Suwa and were each stocked with exotic…”
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Diet and Feeding Habits of Asiatic Black Bears in the Northern Japanese Alps by Huygens, Oscar C., Miyashita, Toshiro, Dahle, Bjørn, Carr, Meghan, Izumiyama, Shigeyuki, Sugawara, Takashi, Hayashi, Hidetake

“…Habitat loss and bear-human conflicts are reported throughout Asiatic black bear (Ursus thibetanus) range. Sound understanding of Asiatic black bear food…”
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Seasonal changes in ribosomal RNA of sulfate-reducing bacteria and sulfate reducing activity in a freshwater lake sediment by Li, Jian-hua, Purdy, Kevin J, Takii, Susumu, Hayashi, Hidetake

“…Seasonal changes in the population of sulfate-reducing bacteria (SRB) in the profundal sediments of a freshwater lake, Lake Kizaki, Japan, were directly…”
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Use of Stone Pine Seeds and Oak Acorns by Asiatic Black Bears in Central Japan by Huygens, Oscar C., Hayashi, Hidetake

“…Korean and Japanese stone pines (Pinus koraiensis and P. pumila, respectively) occur in Japan. Although the importance of stone pine seeds to bears (Ursus…”
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Temporal variabilities of the concentrations of intra- and extracellular microcystin and toxicMicrocystis species in a hypertrophic lake, Lake Suwa, Japan (1991-1994) by Park, Ho-Dong, Iwami, Chie, Watanabe, Mariyo F., Harada, Ken-Ichi, Okino, Tokio, Hayashi, Hidetake

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Relationships between Asiatic black bear kills and depredation costs in Nagano Prefecture, Japan by Huygens, Oscar C, van Manen, Frank T, Martorello, Donald A, Hayashi, Hidetake, Ishida, Junichiro

“…Over 1,000 Asiatic black bears (Ursus thibetanus) are killed each year in Japan to control depredation activity. Our objective was to determine if killing…”
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A Multi-Scale Assessment of Habitat Use by Asiatic Black Bears in Central Japan by Carr, Meghan M., Yoshizaki, Jun, van Manen, Frank T., Pelton, Michael R., Huygens, Oscar C., Hayashi, Hidetake, Maekawa, Masaaki

“…Japan may have >20% of the world's population of Asiatic black bears (Ursus thibetanus), but local extinctions may result in decreasing populations of the…”
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Identification and estimation of microcystins in freshwater mussels by Watanabe, M F, Park, H D, Kondo, F, Harada, K, Hayashi, H, Okino, T

“…Accumulation of microcystins mainly produced by cyanobacteria Microcystis was investigated for freshwater mussels and fishes collected from a lake where heavy…”
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Using Electric Fences to Reduce Asiatic Black Bear Depredation in Nagano Prefecture, Central Japan by Huygens, Oscar C., Hayashi, Hidetake

“…In Japan, levels of predation by Asiatic black bears (Ursus thibetanus) remain great despite the killing of over 1,000 nuisance bears annually. Alternatives to…”
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Impact of whitefish on an enclosure ecosystem in a shallow eutrophic lake: selective feeding of fish and predation effects on the zooplankton communities by Hanazato, Takayuki, Iwakuma, Toshio, Hayashi, Hidetake

“…Bag-type enclosures (75 m super(3)) with bottom sheets and tube-type enclosures (105 m super(3)) open to the bottom sediment were stocked with exotic whitefish…”
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Temporal variabilities of the concentrations of intra- and extracellular microcystin and toxic Microcystis species in a hypertrophic Lake, Lake Suwa, Japan (1991-1994) by Park, H.D, Iwami, C, Watanabe, M.F, Harada, K, Okino, T, Hayashi, H

“…Temporal variability in the concentration of toxic heptapeptide microcystin was studied during the warm season of four years (1991-1994) in a hypertrophic lake…”
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