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12 labs · 0 student voices
Other departments in School of Fisheries Sciences ›Faculties at Hokkaido University ›
Hisashi Imamura, Professor
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The Systematic Ichthyology Lab studies the species diversity of fishes based on morphology. Many fish in the water still have no names, and several hundred new fish species are discovered around the world every year. The lab is strongest in phylogenetic systematics: correctly distinguishing fish species, deciding their scientific names, and classifying them along the paths of evolution. The materials for its research are scientific specimens kept in museums.
Satoshi Wada, Professor
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The Animal Ecology Lab studies ecology, especially behavioral ecology, and its applications. Its subjects include a wide variety of animals, such as hermit crabs, barnacles, sea snails like the Ezo whelk (Neptunea), sea stars, and white-spotted char. The lab investigates how animals interact with predators, food, and mates by closely observing their behavior. The lab's predecessors are the Saltwater Aquaculture Chair and the Benthos Chair.
Kohei Matsuno, Associate Professor
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The Plankton Lab travels by ship to the sea itself to collect plankton and studies the changes taking place in the ocean. Plankton are small organisms with weak swimming ability and short lifespans, and they are thought to be easily affected by environmental change. The Arctic and Antarctic oceans, where the effects of warming are thought to be large, are also among the lab's research fields.
Orio Yamamura, Associate Professor
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The Hokuyoken Ecology Lab studies the relationships between the marine environment and the many kinds of organisms that live in it. Its research subjects are organisms of the subarctic North Pacific, the Sea of Japan, the Sea of Okhotsk, and the Bering Sea. Its goal is to understand the structure and function of marine ecosystems and to find ways to use marine resources sustainably while preserving biodiversity. Depending on the research theme, the lab uses field surveys conducted aboard ships and laboratory experiments.
Tetsuya Takatsu, Professor
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The Fishing Ground Science Lab studies what causes the abundance of fishery resources to change, focusing on fish that live near the seafloor, such as flatfishes and cods. The size of a fish stock depends on how many individuals survive the egg, larval, and juvenile stages. The lab therefore measures the density of eggs, larvae, and juveniles, water temperature, food availability, and growth rate, working to identify the causes of stock fluctuations and to predict them. It combines field surveys with rearing experiments, and it is a lab with many shipboard surveys and outdoor activities.
Takashi Matsuishi, Professor
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The Matsuishi Lab studies fisheries resource science to prevent overfishing, the catching of too many fish. The lab estimates how many fish are in the sea, examines the characteristics of each stock, and considers what fishing methods can protect stocks. Its distinguishing feature is that it aims for ways to protect stocks while continuing to fish, avoiding fishing bans wherever possible. The lab is also pursuing research on strandings and bycatch of cetaceans such as harbor porpoises.
Takeshi Yoshimura, Associate Professor
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The Yoshimura Lab uses precise chemical analysis to study how bioelements such as carbon and nitrogen cycle in the ocean. The ocean absorbs large amounts of carbon dioxide and heat, playing a major role in stabilizing Earth's climate. The dynamics of ecosystems, including plankton, that support this function are determined by bioelements. The lab is located in the Graduate School of Environmental Science on the Sapporo Campus, and conducts surveys at waterside sites such as Lake Saroma and Akkeshi.
Atsushi Ooki, Professor
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The Marine and Sea Ice Biogeochemistry Lab is made up of the groups of Prof. Ooki and Prof. Nomura. It studies the cycling of chemical substances in the ocean and sea ice and its effects on marine and atmospheric environments, in seas ranging from the Arctic Ocean to the Southern Ocean. Prof. Ooki's group focuses on organic gases emitted by marine plants and on the cycling of iodine and nutrients, conducting observations in Funka Bay and investigating the fate of carbon in seaweeds such as kelp. Prof. Nomura's group conducts field observations on sea ice in freezing seas such as the Antarctic, the Arctic, and the Sea of Okhotsk, studying the uptake and release of greenhouse gases such as carbon dioxide.
Hideaki Kudo, Professor
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The Salmon Biology Lab studies the physiology and body structure of salmonid fishes that move between the sea and rivers. When salmon swim downstream, they memorize the odor of the river where they were born, and when they mature, they return to that same river. The lab investigates how this odor is learned and recalled, and the body changes seen in mature males, using tissues, genes, and hormones. The lab aims to make the hatchery rearing and release of salmon sustainable, with consideration for ecosystems and climate change.
John Richard Bower, Associate Professor
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Associate Professor Bower's lab studies cephalopods such as squid and octopus. Research currently centers on three areas: behavior, learning, and fisheries. Cephalopods are animals with complex and fascinating behavior, such as rapidly changing their body color and patterns, and they are also the target of major fisheries around the world.
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