Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific
Abstract We investigated the seasonal occurrence and vertical distribution/migration of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in oceanic areas of the western subarctic Pacific. This species was the most abundant larval fish and one of the most abund...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Language: | English |
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Cambridge University Press (CUP)
2020
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Online Access: | http://dx.doi.org/10.1017/s002531542000082x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002531542000082X |
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crcambridgeupr:10.1017/s002531542000082x 2024-10-13T14:10:59+00:00 Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific Kitamura, Minoru Murata, Naofumi 2020 http://dx.doi.org/10.1017/s002531542000082x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002531542000082X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 100, issue 6, page 969-977 ISSN 0025-3154 1469-7769 journal-article 2020 crcambridgeupr https://doi.org/10.1017/s002531542000082x 2024-10-02T04:01:11Z Abstract We investigated the seasonal occurrence and vertical distribution/migration of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in oceanic areas of the western subarctic Pacific. This species was the most abundant larval fish and one of the most abundant juvenile/adult fish at the study site. Larval recruitment of this species occurred in early March to mid-October. Larvae were found, however, throughout all seasons, suggesting that some had overwintered. The highest abundance (5.8 individuals m –2 ) of larvae was in summer. During summer and autumn, hatching mainly occurred at 100–150-m depth and larvae migrated toward the surface with growth. Once larvae reached about 20 mm in length, they moved below 100 m, and larger larvae (over 24 mm) exhibited diel vertical migration. The abundance of juveniles integrated through the water column was relatively constant (0.3 individuals m –2 ) throughout the study period. They were collected from below 300 m during the day, and part of the population (13–38%) swam into the epipelagic layer at night. The information on early stages of L. schmidti presented here provides a basis for future investigations of mesopelagic fish ecology in oceanic areas of the western subarctic North Pacific Ocean. Article in Journal/Newspaper Subarctic Cambridge University Press Pacific Journal of the Marine Biological Association of the United Kingdom 100 6 969 977 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract We investigated the seasonal occurrence and vertical distribution/migration of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in oceanic areas of the western subarctic Pacific. This species was the most abundant larval fish and one of the most abundant juvenile/adult fish at the study site. Larval recruitment of this species occurred in early March to mid-October. Larvae were found, however, throughout all seasons, suggesting that some had overwintered. The highest abundance (5.8 individuals m –2 ) of larvae was in summer. During summer and autumn, hatching mainly occurred at 100–150-m depth and larvae migrated toward the surface with growth. Once larvae reached about 20 mm in length, they moved below 100 m, and larger larvae (over 24 mm) exhibited diel vertical migration. The abundance of juveniles integrated through the water column was relatively constant (0.3 individuals m –2 ) throughout the study period. They were collected from below 300 m during the day, and part of the population (13–38%) swam into the epipelagic layer at night. The information on early stages of L. schmidti presented here provides a basis for future investigations of mesopelagic fish ecology in oceanic areas of the western subarctic North Pacific Ocean. |
format |
Article in Journal/Newspaper |
author |
Kitamura, Minoru Murata, Naofumi |
spellingShingle |
Kitamura, Minoru Murata, Naofumi Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific |
author_facet |
Kitamura, Minoru Murata, Naofumi |
author_sort |
Kitamura, Minoru |
title |
Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific |
title_short |
Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific |
title_full |
Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific |
title_fullStr |
Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific |
title_full_unstemmed |
Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific |
title_sort |
seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, leuroglossus schmidti (pisces, bathylagidae), in the western subarctic pacific |
publisher |
Cambridge University Press (CUP) |
publishDate |
2020 |
url |
http://dx.doi.org/10.1017/s002531542000082x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002531542000082X |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 100, issue 6, page 969-977 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s002531542000082x |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
100 |
container_issue |
6 |
container_start_page |
969 |
op_container_end_page |
977 |
_version_ |
1812818564889968640 |