Ovarian structure and mode of egg production in the seaweed pipefish Syngnathus schlegeli (Syngnathidae)

Atsushi Sogabe; Hiromi Takata; Yasuhisa Kobayashi

doi:10.1007/s10228-012-0313-z

Ovarian structure and mode of egg production in the seaweed pipefish Syngnathus schlegeli (Syngnathidae)

Atsushi Sogabe, Hiromi Takata, Yasuhisa Kobayashi

Faculty of Science

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

This study investigated ovarian structure and mode of egg production in the seaweed pipefish, Syngnathus schlegeli. The ovary had a rolled sheet-like structure where developing follicles were arranged serially in sequence according to their development, with a single germinal ridge running along the edge of the sheet. Oocytes of various developmental stages were concomitantly present in the ovary, and the number of mature eggs increased continuously over time, indicating that egg production is asynchronous. This would be a physiological basis for multiple spawning within a short time span associated with polygamy in this fish.

Original language	English
Pages (from-to)	85-88
Number of pages	4
Journal	Ichthyological Research
Volume	60
Issue number	1
DOIs	https://doi.org/10.1007/s10228-012-0313-z
Publication status	Published - Jan 2013

Keywords

Mating system
Oogenesis
Spawning
Syngnathidae
Syngnathus schlegeli

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics

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10.1007/s10228-012-0313-z

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title = "Ovarian structure and mode of egg production in the seaweed pipefish Syngnathus schlegeli (Syngnathidae)",

abstract = "This study investigated ovarian structure and mode of egg production in the seaweed pipefish, Syngnathus schlegeli. The ovary had a rolled sheet-like structure where developing follicles were arranged serially in sequence according to their development, with a single germinal ridge running along the edge of the sheet. Oocytes of various developmental stages were concomitantly present in the ovary, and the number of mature eggs increased continuously over time, indicating that egg production is asynchronous. This would be a physiological basis for multiple spawning within a short time span associated with polygamy in this fish.",

keywords = "Mating system, Oogenesis, Spawning, Syngnathidae, Syngnathus schlegeli",

author = "Atsushi Sogabe and Hiromi Takata and Yasuhisa Kobayashi",

note = "Funding Information: We are grateful to S. Iwasaki for technical support in field and laboratory work. We thank K. Hidaka, H. Issiki, Y. Kamimura, H. Kinoshita, T. Morita, Y. Nakata, E. Sawai, J. Shoji, and A. Tada for their help in collecting fish. We also thank S. Watanabe for technical advice for rearing fish, J. Shibata for advice on statistical analyses, and anonymous reviewers for helpful comments. This research was supported by the Japan Society for the Promotion of Science for Young Scientists to A.S.",

year = "2013",

month = jan,

doi = "10.1007/s10228-012-0313-z",

language = "English",

volume = "60",

pages = "85--88",

journal = "Ichthyological Research",

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AU - Sogabe, Atsushi

AU - Takata, Hiromi

AU - Kobayashi, Yasuhisa

N1 - Funding Information: We are grateful to S. Iwasaki for technical support in field and laboratory work. We thank K. Hidaka, H. Issiki, Y. Kamimura, H. Kinoshita, T. Morita, Y. Nakata, E. Sawai, J. Shoji, and A. Tada for their help in collecting fish. We also thank S. Watanabe for technical advice for rearing fish, J. Shibata for advice on statistical analyses, and anonymous reviewers for helpful comments. This research was supported by the Japan Society for the Promotion of Science for Young Scientists to A.S.

PY - 2013/1

Y1 - 2013/1

N2 - This study investigated ovarian structure and mode of egg production in the seaweed pipefish, Syngnathus schlegeli. The ovary had a rolled sheet-like structure where developing follicles were arranged serially in sequence according to their development, with a single germinal ridge running along the edge of the sheet. Oocytes of various developmental stages were concomitantly present in the ovary, and the number of mature eggs increased continuously over time, indicating that egg production is asynchronous. This would be a physiological basis for multiple spawning within a short time span associated with polygamy in this fish.

AB - This study investigated ovarian structure and mode of egg production in the seaweed pipefish, Syngnathus schlegeli. The ovary had a rolled sheet-like structure where developing follicles were arranged serially in sequence according to their development, with a single germinal ridge running along the edge of the sheet. Oocytes of various developmental stages were concomitantly present in the ovary, and the number of mature eggs increased continuously over time, indicating that egg production is asynchronous. This would be a physiological basis for multiple spawning within a short time span associated with polygamy in this fish.

KW - Mating system

KW - Oogenesis

KW - Spawning

KW - Syngnathidae

KW - Syngnathus schlegeli

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ER -

Ovarian structure and mode of egg production in the seaweed pipefish Syngnathus schlegeli (Syngnathidae)

Abstract

Keywords

ASJC Scopus subject areas

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