Blar i NORCE vitenarkiv på forfatter "Handeland, Sigurd O"
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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 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 ... -
The Melanocortin System in Atlantic Salmon (Salmo salar L.) and Its Role in Appetite Control
Kalananthan, Tharmini; Lai, Floriana; Gomes, Ana S.; Murashita, Koji; Handeland, Sigurd O; Rønnestad, Ivar (Peer reviewed; Journal article, 2020)The melanocortin system is a key neuroendocrine network involved in the control of food intake and energy homeostasis in vertebrates. Within the hypothalamus, the system comprises two main distinct neuronal cell populations ... -
Performance and welfare of Atlantic salmon, Salmo salar L. post-smolts in recirculating aquaculture systems: Importance of salinity and water velocity
Ytrestøyl, Trine; Takle, Harald Rune; Kolarevic, Jelena; Calabrese, Sara; Timmerhaus, Gerrit; Rosseland, Bjørn Olav; Teien, Hans-Christian; Nilsen, Tom Ole; Handeland, Sigurd O; Stefansson, Sigurd; Ebbesson, Lars; Terjesen, Bendik Fyhn (Journal article; Peer reviewed, 2020)Producing a larger post-smolt in recirculating aquaculture systems (RAS) could shorten the production time in sea cages and potentially reduce mortality. Knowledge of the biological requirements of post-smolts in ...