HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Field Science Center for Northern Biosphere >
Peer-reviewed Journal Articles, etc >

Olfactory Responses to Natal Stream Water in Sockeye Salmon by BOLD fMRI.

Files in This Item:
PO_ueda.pdf775.81 kBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Olfactory Responses to Natal Stream Water in Sockeye Salmon by BOLD fMRI.
Authors: Bandoh, Hiroshi Browse this author
Kida, Ikuhiro Browse this author
Ueda, Hiroshi Browse this author
Issue Date: 17-Jan-2011
Publisher: Public Library of Science
Journal Title: PLoS ONE
Volume: 6
Issue: 1
Start Page: e16051
End Page: e16051
Publisher DOI: 10.1371/journal.pone.0016051
PMID: 21264223
Abstract: Many studies have shown that juvenile salmon imprint olfactory memory of natal stream odors during downstream migration, and adults recall this stream-specific odor information to discriminate their natal stream during upstream migration for spawning. The odor information processing of the natal stream in the salmon brain, however, has not been clarified. We applied blood oxygenation level-dependent (BOLD) functional magnetic resonance imaging to investigate the odor information processing of the natal stream in the olfactory bulb and telencephalon of lacustrine sockeye salmon (Oncorhynchus nerka). The strong responses to the natal stream water were mainly observed in the lateral area of dorsal telencephalon (Dl), which are homologous to the medial pallium (hippocampus) in terrestrial vertebrates. Although the concentration of L-serine (1 mM) in the control water was 20,000-times higher than that of total amino acid in the natal stream water (47.5 nM), the BOLD signals resulting from the natal stream water were stronger than those by L-serine in the Dl. We concluded that sockeye salmon could process the odor information of the natal stream by integrating information in the Dl area of the telencephalon.
Type: article
Appears in Collections:北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 上田 宏

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University