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

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 str... Full description

Journal Title: PloS one 2011-01-17, Vol.6 (1), p.e16051-e16051
Main Author: Bandoh, Hiroshi
Other Authors: Kida, Ikuhiro , Ueda, Hiroshi
Format: Electronic Article Electronic Article
Language: English
Subjects:
NMR
Publisher: United States: Public Library of Science
ID: ISSN: 1932-6203
Link: https://www.ncbi.nlm.nih.gov/pubmed/21264223
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recordid: cdi_plos_journals_1294307646
title: Olfactory Responses to Natal Stream Water in Sockeye Salmon by BOLD fMRI
format: Article
creator:
  • Bandoh, Hiroshi
  • Kida, Ikuhiro
  • Ueda, Hiroshi
subjects:
  • Adults
  • Amino Acids
  • Animal Physiology
  • Animals
  • Biology
  • Brain
  • Brain mapping
  • Carp
  • Data processing
  • Fish
  • Fishes
  • fMRI
  • Functional magnetic resonance imaging
  • Homology
  • Ichthyology
  • Information processing
  • L-Serine
  • Magnetic resonance
  • Magnetic resonance imaging
  • Magnetic Resonance Imaging - methods
  • Medicine
  • Migration
  • Neuroimaging
  • Neuroscience
  • NMR
  • Nuclear magnetic resonance
  • Odor
  • Odorants - analysis
  • Odors
  • Olfactory bulb
  • Olfactory Bulb - physiology
  • Olfactory System
  • Oxygenation
  • Pallium
  • reproductive
  • Research
  • Research Article
  • Rivers - chemistry
  • Salmon
  • Salmon - physiology
  • Science
  • Sensory Systems
  • Serine
  • Smell
  • Spawning
  • Stream water
  • Studies
  • Telencephalon
  • Telencephalon - physiology
  • Terrestrial environments
  • urinary physiology
  • Vertebrates
  • Zoology
ispartof: PloS one, 2011-01-17, Vol.6 (1), p.e16051-e16051
description: 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.
language: eng
source:
identifier: ISSN: 1932-6203
fulltext: no_fulltext
issn:
  • 1932-6203
  • 1932-6203
url: Link


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descriptionMany 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.
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subjectAdults ; Amino Acids ; Animal Physiology ; Animals ; Biology ; Brain ; Brain mapping ; Carp ; Data processing ; Fish ; Fishes ; fMRI ; Functional magnetic resonance imaging ; Homology ; Ichthyology ; Information processing ; L-Serine ; Magnetic resonance ; Magnetic resonance imaging ; Magnetic Resonance Imaging - methods ; Medicine ; Migration ; Neuroimaging ; Neuroscience ; NMR ; Nuclear magnetic resonance ; Odor ; Odorants - analysis ; Odors ; Olfactory bulb ; Olfactory Bulb - physiology ; Olfactory System ; Oxygenation ; Pallium ; reproductive ; Research ; Research Article ; Rivers - chemistry ; Salmon ; Salmon - physiology ; Science ; Sensory Systems ; Serine ; Smell ; Spawning ; Stream water ; Studies ; Telencephalon ; Telencephalon - physiology ; Terrestrial environments ; urinary physiology ; Vertebrates ; Zoology
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descriptionMany 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.
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1Amino Acids
2Animal Physiology
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4Biology
5Brain
6Brain mapping
7Carp
8Data processing
9Fish
10Fishes
11fMRI
12Functional magnetic resonance imaging
13Homology
14Ichthyology
15Information processing
16L-Serine
17Magnetic resonance
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20Medicine
21Migration
22Neuroimaging
23Neuroscience
24NMR
25Nuclear magnetic resonance
26Odor
27Odorants - analysis
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29Olfactory bulb
30Olfactory Bulb - physiology
31Olfactory System
32Oxygenation
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35Research
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37Rivers - chemistry
38Salmon
39Salmon - physiology
40Science
41Sensory Systems
42Serine
43Smell
44Spawning
45Stream water
46Studies
47Telencephalon
48Telencephalon - physiology
49Terrestrial environments
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51Vertebrates
52Zoology
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titleOlfactory Responses to Natal Stream Water in Sockeye Salmon by BOLD fMRI
authorBandoh, Hiroshi ; Kida, Ikuhiro ; Ueda, Hiroshi
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40Science
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43Smell
44Spawning
45Stream water
46Studies
47Telencephalon
48Telencephalon - physiology
49Terrestrial environments
50urinary physiology
51Vertebrates
52Zoology
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notesConceived and designed the experiments: HB IK HU. Performed the experiments: HB IK. Analyzed the data: HB IK HU. Contributed reagents/materials/analysis tools: HB IK HU. Wrote the paper: HB IK HU.
abstractMany 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.
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