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  1. No Access

    Article

    Spawning habitat characteristics and egg mortality in relation to river geomorphology and run-times of chum salmon (Oncorhynchus keta) in a metropolitan river system, northern Japan

    We investigated the geomorphology and environmental variables in which early- and late-run chum salmon groups spawn in an urban section of the Toyohira River, northern Japan, in relation to egg mortality, wher...

    Nozomi Aruga, Kentaro Morita, Makoto Aruga… in Environmental Biology of Fishes (2023)

  2. No Access

    Article

    Reverse migration of adult pink salmon (Oncorhynchus gorbuscha) to the sea after their return to fresh water

    Few studies have examined the movement of adult Pacific salmon Oncorhynchus spp. between the sea and rivers after they have entered a river. In this study, archival tags that recorded temperature and salinity wer...

    Kentaro Morita in Environmental Biology of Fishes (2022)

  3. No Access

    Article

    Size-selective mortality occurs in smolts during a seaward migration, but not in river residents, in masu salmon (Oncorhynchus masou)

    Salmonid fish often experience size-selective mortality when descending the river (i.e., seaward migration). However, it is unknown whether size-selective mortality is specific to this life history (i.e., migr...

    Ryo Futamura, Kentaro Morita, Yoichiro Kanno… in Environmental Biology of Fishes (2022)

  4. No Access

    Article

    Differential effects of the environment on the growth of arabesque greenling (Pleurogrammus azonus): does rising temperature benefit young but not old fish?

    Annual and spatial variations in the growth condition of the arabesque greenling (Pleurogrammus azonus) were examined in relation to temperature and food availability. We found age-dependent effects of temperatur...

    Shoko H. Morita, Kentaro Morita, Tomonori Hamatsu… in Environmental Biology of Fishes (2015)

  5. No Access

    Article

    Sex-biased dispersal and growth in sablefish (Anoplopoma fimbria) in the northeastern Pacific Ocean

    To examine the potential linkage between sex-biased growth and dispersal in demersal fish, we studied the movement distance and growth of tag-recaptured sablefish (Anoplopoma fimbria). Tagging was conducted by te...

    Shoko H. Morita, Kentaro Morita, Akira Nishimura in Environmental Biology of Fishes (2012)

  6. No Access

    Article

    Offshore Dolly Varden charr (Salvelinus malma) in the North Pacific

    Many studies have investigated the ecology of charrs in freshwater, however, little is known about charrs in the ocean. This study examined the distribution, seasonal abundance, and some biological features of...

    Kentaro Morita, Shoko H. Morita, Masa-aki Fukuwaka… in Environmental Biology of Fishes (2009)