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Papers by HIROSHI UEDA

Research paper thumbnail of 第3回世界水フォーラム日本陸水学会企画セッションの報告

Japanese Journal of Limnology (Rikusuigaku Zasshi), 2004

Research paper thumbnail of Micro Data Logger Analyses of Homing Behavior of Chum Salmon in Ishikari Bay

Research paper thumbnail of Two Types of cDNAs Encoding Proopiomelanocortin of Sockeye Salmon, Oncorhynchus nerka

Research paper thumbnail of Changes in the levels of mRNAs for GH/prolactin/somatolactin family and Pit-1/GHF-1 in the pituitaries of pre-spawning chum salmon

Journal of Molecular Endocrinology, 1999

Changes in the levels of pituitary mRNAs encoding GH, prolactin (PRL) and somatolactin (SL) were ... more Changes in the levels of pituitary mRNAs encoding GH, prolactin (PRL) and somatolactin (SL) were determined in pre-spawning chum salmon (Oncorhynchus keta) caught at a few key points along their homing pathway in 1994 and 1995. Furthermore, we analyzed relationships between expression of pituitary-specific POU homeodomain transcription factor (Pit-1/GHF-1) and GH/PRL/SL family genes. In 1994, seawater (SW) fish and matured fresh-water (FW) fish were sequentially captured at two points along their homing pathway, the coast and the hatchery. In addition to these two points, maturing FW fish were captured at the intermediate of the two points in 1995. The levels of hormonal mRNAs were determined by a quantitative dot blot analysis using single-stranded sense DNA as the standard. Relative levels of Pit-1/GHF-1 mRNAs were estimated by Northern blot analysis. In 1994, the levels of GH/PRL/SL family mRNAs except for PRL mRNA in the male FW fish were 1.8-4 times higher than those in the SW ...

Research paper thumbnail of Effects of external and surgically implanted dummy radio transmitters on mortality, swimming performance and physiological status of juvenile masu salmonOncorhynchus masou

Journal of Fish Biology, 2009

Research paper thumbnail of Upstream migration of adult chum and pink salmon in the Shibetsu River

Research paper thumbnail of Upriver spawning migration of shishamo smelt Spirinchus lanceolatus assessed by radio telemetry

NIPPON SUISAN GAKKAISHI, 2010

Research paper thumbnail of Sexually Different Expression of Neurohypophysial Hormone Genes in the Preoptic Nucleus of Pre-Spawning Chum Salmon

Research paper thumbnail of Recent biotelemetry research on lacustrine salmon homing migration

Memoirs of National Institute of Polar Research Special Issue, Mar 1, 2004

Research paper thumbnail of Seasonal Variation in the Expression of Five Subtypes of Gonadotropin-releasing Hormone Receptor Genes in the Brain of Masu Salmon from Immaturity to Spawning

Research paper thumbnail of Changes in the Levels of Gonadotropin Subunit mRNAs in the Pituitary of Pre-Spawning Chum Salmon

Research paper thumbnail of Olfactory Responses to Natal Stream Water in Sockeye Salmon by BOLD fMRI

Research paper thumbnail of Seasonal changes in CRF-I and urotensin I transcript levels in masu salmon: Correlation with cortisol secretion during spawning

General and Comparative Endocrinology, 2008

Research paper thumbnail of Physiological and ecological studies on mechanisms of salmon homing

NIPPON SUISAN GAKKAISHI, 2005

Research paper thumbnail of Cloning and characterization of an odorant receptor in five Pacific salmon

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2007

Research paper thumbnail of Experimental evidence on prevention of infection by the ectoparasitic protozoans Ichthyobodo salmonis and Trichodina truttae in juvenile chum salmon using ultraviolet disinfection of rearing water

Journal of Fish Diseases, 2018

Research paper thumbnail of First Record of Swimming Speed of a Pacific Salmon Undertaking Oceanic Migration from the Central Bering Sea to the Japanese Coast

Research paper thumbnail of Physiological Mechanisms of Homing Ability in Sockeye Salmon : From Behavior to Molecules Using a Lacustrine Model

A number of studies have investigated the amazing abilities of salmon to migrate long distances f... more A number of studies have investigated the amazing abilities of salmon to migrate long distances from the ocean to their natal streams for spawning, but much remains unknown because of the difficulties in following the whole life cycle, especially the oceanic migration. Kokanee Oncorhynchus nerka (lacustrine sockeye salmon), offer promise as systems for studying the physiological mechanisms of homing ability in salmon. Three types of physiological study, from behavior to molecules, were conducted using Lake Toya and Lake Shikotsu, Hokkaido, Japan, as model "oceans" and are reviewed here. The first study examined homing behavior of mature sockeye salmon in Lake Toya using ultrasonic tracking systems, testing for use of visual cues and magnetic orientation. Visual cues, but not magnetic orientation, appeared to be important in straight homing behavior. The second study examined the effect of hormonal controlling mechanisms, in relation to sexual differences, on homing duratio...

Research paper thumbnail of Behavioral Responses by Migratory Chum Salmon to Amino Acids in Natal Stream Water

Research paper thumbnail of Olfactory Imprinting of Amino Acids in Lacustrine Sockeye Salmon

Research paper thumbnail of 第3回世界水フォーラム日本陸水学会企画セッションの報告

Japanese Journal of Limnology (Rikusuigaku Zasshi), 2004

Research paper thumbnail of Micro Data Logger Analyses of Homing Behavior of Chum Salmon in Ishikari Bay

Research paper thumbnail of Two Types of cDNAs Encoding Proopiomelanocortin of Sockeye Salmon, Oncorhynchus nerka

Research paper thumbnail of Changes in the levels of mRNAs for GH/prolactin/somatolactin family and Pit-1/GHF-1 in the pituitaries of pre-spawning chum salmon

Journal of Molecular Endocrinology, 1999

Changes in the levels of pituitary mRNAs encoding GH, prolactin (PRL) and somatolactin (SL) were ... more Changes in the levels of pituitary mRNAs encoding GH, prolactin (PRL) and somatolactin (SL) were determined in pre-spawning chum salmon (Oncorhynchus keta) caught at a few key points along their homing pathway in 1994 and 1995. Furthermore, we analyzed relationships between expression of pituitary-specific POU homeodomain transcription factor (Pit-1/GHF-1) and GH/PRL/SL family genes. In 1994, seawater (SW) fish and matured fresh-water (FW) fish were sequentially captured at two points along their homing pathway, the coast and the hatchery. In addition to these two points, maturing FW fish were captured at the intermediate of the two points in 1995. The levels of hormonal mRNAs were determined by a quantitative dot blot analysis using single-stranded sense DNA as the standard. Relative levels of Pit-1/GHF-1 mRNAs were estimated by Northern blot analysis. In 1994, the levels of GH/PRL/SL family mRNAs except for PRL mRNA in the male FW fish were 1.8-4 times higher than those in the SW ...

Research paper thumbnail of Effects of external and surgically implanted dummy radio transmitters on mortality, swimming performance and physiological status of juvenile masu salmonOncorhynchus masou

Journal of Fish Biology, 2009

Research paper thumbnail of Upstream migration of adult chum and pink salmon in the Shibetsu River

Research paper thumbnail of Upriver spawning migration of shishamo smelt Spirinchus lanceolatus assessed by radio telemetry

NIPPON SUISAN GAKKAISHI, 2010

Research paper thumbnail of Sexually Different Expression of Neurohypophysial Hormone Genes in the Preoptic Nucleus of Pre-Spawning Chum Salmon

Research paper thumbnail of Recent biotelemetry research on lacustrine salmon homing migration

Memoirs of National Institute of Polar Research Special Issue, Mar 1, 2004

Research paper thumbnail of Seasonal Variation in the Expression of Five Subtypes of Gonadotropin-releasing Hormone Receptor Genes in the Brain of Masu Salmon from Immaturity to Spawning

Research paper thumbnail of Changes in the Levels of Gonadotropin Subunit mRNAs in the Pituitary of Pre-Spawning Chum Salmon

Research paper thumbnail of Olfactory Responses to Natal Stream Water in Sockeye Salmon by BOLD fMRI

Research paper thumbnail of Seasonal changes in CRF-I and urotensin I transcript levels in masu salmon: Correlation with cortisol secretion during spawning

General and Comparative Endocrinology, 2008

Research paper thumbnail of Physiological and ecological studies on mechanisms of salmon homing

NIPPON SUISAN GAKKAISHI, 2005

Research paper thumbnail of Cloning and characterization of an odorant receptor in five Pacific salmon

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2007

Research paper thumbnail of Experimental evidence on prevention of infection by the ectoparasitic protozoans Ichthyobodo salmonis and Trichodina truttae in juvenile chum salmon using ultraviolet disinfection of rearing water

Journal of Fish Diseases, 2018

Research paper thumbnail of First Record of Swimming Speed of a Pacific Salmon Undertaking Oceanic Migration from the Central Bering Sea to the Japanese Coast

Research paper thumbnail of Physiological Mechanisms of Homing Ability in Sockeye Salmon : From Behavior to Molecules Using a Lacustrine Model

A number of studies have investigated the amazing abilities of salmon to migrate long distances f... more A number of studies have investigated the amazing abilities of salmon to migrate long distances from the ocean to their natal streams for spawning, but much remains unknown because of the difficulties in following the whole life cycle, especially the oceanic migration. Kokanee Oncorhynchus nerka (lacustrine sockeye salmon), offer promise as systems for studying the physiological mechanisms of homing ability in salmon. Three types of physiological study, from behavior to molecules, were conducted using Lake Toya and Lake Shikotsu, Hokkaido, Japan, as model "oceans" and are reviewed here. The first study examined homing behavior of mature sockeye salmon in Lake Toya using ultrasonic tracking systems, testing for use of visual cues and magnetic orientation. Visual cues, but not magnetic orientation, appeared to be important in straight homing behavior. The second study examined the effect of hormonal controlling mechanisms, in relation to sexual differences, on homing duratio...

Research paper thumbnail of Behavioral Responses by Migratory Chum Salmon to Amino Acids in Natal Stream Water

Research paper thumbnail of Olfactory Imprinting of Amino Acids in Lacustrine Sockeye Salmon

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