Blar i NORCE vitenarkiv på forfatter "Shimizu, Munetaka"
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Effects of different photoperiod regimes on the smoltification and seawater adaptation of seawater-farmed rainbow trout (Oncorhynchus mykiss): Insights from Na+, K+-ATPase activity and transcription of osmoregulation and growth regulation genes
Morro, Bernat; Balseiro Vigo, Pablo; Albalat, Amaya; Pinto Pedrosa, Cindy; Mackenzie, Simon A.; Nakamura, Shu; Shimizu, Munetaka; Nilsen, Tom Ole; Sveier, Harald; Ebbesson, Lars O.E.; Handeland, Sigurd O (Journal article; Peer reviewed, 2019)Photoperiod is thought to be the main zeitgeber that induces smoltification in salmonids. However, its effects on the smoltification of rainbow trout (Oncorhynchus mykiss) are not fully understood and no published data ... -
Effects of fasting and water temperatures during transition from freshwater to seawater on juvenile chum salmon growth and metabolism
Oikawa, Jin; Nakamura, Shu; Kaneko, Nobuto; Torao, Mitsuru; Koshino, Yosuke; Shimizu, Munetaka (Journal article; Peer reviewed, 2021)We examined the combined effects of fasting in freshwater and water temperature during the transition from freshwater to seawater on growth/metabolic parameters in juvenile chum salmon Oncorhynchus keta. Juveniles of 1 g ... -
Effects of temperature and photoperiod on rainbow trout (Oncorhynchus mykiss) smoltification and haematopoiesis
Morro, Bernat; Balseiro Vigo, Pablo; Albalat, Amaya; MacKenzie, Simon; Pedrosa, Cindy; Nilsen, Tom Ole; Suzuki, Shotaro; Shimizu, Munetaka; Sveier, Harald; Gorissen, Marnix; Ebbesson, Lars O.E.; Handeland, Sigurd O (Peer reviewed; Journal article, 2019)Highlights • nkaα1a, nkaα1b and nkcc1a provide relevant information that the NKA activity does not reflect. • While nkaα1a and nkcc1a transcription are mainly regulated by temperature, nkaα1b is regulated mainly by ... -
Endoplasmic reticulum stress as a key mechanism in stunted growth of seawater rainbow trout (Oncorhynchus mykiss)
Morro, Bernat; Broughton, Richard; Vigo, Pablo Balseiro; Handeland, Sigurd Olav; Mackenzie, Simon A.; Doherty, Mary K.; Whitfield, Phillip D.; Shimizu, Munetaka; Gorissen, Marnix; Sveier, Harald; Albalat, Amaya (Peer reviewed; Journal article, 2021)Background Rainbow trout (Oncorhynchus mykiss) is a salmonid species with a complex life-history. Wild populations are naturally divided into freshwater residents and sea-run migrants. Migrants undergo an energy-demanding ... -
Intact rather than total circulating insulin-like growth factor binding protein-1a is a negative indicator of growth in masu salmon
Kaneko, Nobuto; Nilsen, Tom Ole; Tanaka, Hanae; Hara, Akihiko; Shimizu, Munetaka (Peer reviewed; Journal article, 2020)Insulin-like growth factor binding protein (IGFBP)-1a is one of three major circulating forms in salmon and induced under catabolic conditions. However, there is currently no immunoassay available for this form because of ...