Otolith Microstructure and Ecology of the Conger Eel (Congen myriaster) Larvae Collected in the Seto Inland Sea, Japan

Kuniaki Tanaka, Juro Yamada, Osame Tabeta, Noritaka Mochioka, Shunpei Kakuda

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Otolith microstructure of the conger eel (Conger myriaster) larvae was observed using the scanning electron microscope with reference to the ecology in the Seto Inland Sea, Japan. The radii and the number of rings of the otoliths from the developing stage larvae were 104–145 μm and 123–172, respectively, while those from the metamorphic stage larvae were 140–496 μm and 159–212, respectively. The number of rings correlated highly with the radius of otoliths (r—0.905). The growth of radius and increase of number of rings were recognized for the first time in the otolith of the conger eel larvae in relation to growth of the head during the metamorphic stage. It was assumed that narrow and clear rings in the range from the first to about the 140th-150th ring correspond to the period from hatching to developing stage of leptocephalus, while wide rings in the range from about the 150th ring to the otolith margin corresponed to the period from the latest developing stage to the metamorphic stage. The daily growth rhythm in the otolith could not be proved from reared larvae due to the disturbance of ring arrangement in the marginal region.

Original languageEnglish
Pages (from-to)543-549
Number of pages7
JournalNIPPON SUISAN GAKKAISHI
Volume53
Issue number4
DOIs
Publication statusPublished - Jan 1 1987

Fingerprint

Conger conger
inland sea
eel
otolith
otoliths
microstructure
Japan
ecology
larva
larvae
Conger myriaster
scanning electron microscopes
hatching
disturbance
electron

All Science Journal Classification (ASJC) codes

  • Aquatic Science

Cite this

Otolith Microstructure and Ecology of the Conger Eel (Congen myriaster) Larvae Collected in the Seto Inland Sea, Japan. / Tanaka, Kuniaki; Yamada, Juro; Tabeta, Osame; Mochioka, Noritaka; Kakuda, Shunpei.

In: NIPPON SUISAN GAKKAISHI, Vol. 53, No. 4, 01.01.1987, p. 543-549.

Research output: Contribution to journalArticle

Tanaka, Kuniaki ; Yamada, Juro ; Tabeta, Osame ; Mochioka, Noritaka ; Kakuda, Shunpei. / Otolith Microstructure and Ecology of the Conger Eel (Congen myriaster) Larvae Collected in the Seto Inland Sea, Japan. In: NIPPON SUISAN GAKKAISHI. 1987 ; Vol. 53, No. 4. pp. 543-549.
@article{c05483ecc7f64918a7445ebd8893c962,
title = "Otolith Microstructure and Ecology of the Conger Eel (Congen myriaster) Larvae Collected in the Seto Inland Sea, Japan",
abstract = "Otolith microstructure of the conger eel (Conger myriaster) larvae was observed using the scanning electron microscope with reference to the ecology in the Seto Inland Sea, Japan. The radii and the number of rings of the otoliths from the developing stage larvae were 104–145 μm and 123–172, respectively, while those from the metamorphic stage larvae were 140–496 μm and 159–212, respectively. The number of rings correlated highly with the radius of otoliths (r—0.905). The growth of radius and increase of number of rings were recognized for the first time in the otolith of the conger eel larvae in relation to growth of the head during the metamorphic stage. It was assumed that narrow and clear rings in the range from the first to about the 140th-150th ring correspond to the period from hatching to developing stage of leptocephalus, while wide rings in the range from about the 150th ring to the otolith margin corresponed to the period from the latest developing stage to the metamorphic stage. The daily growth rhythm in the otolith could not be proved from reared larvae due to the disturbance of ring arrangement in the marginal region.",
author = "Kuniaki Tanaka and Juro Yamada and Osame Tabeta and Noritaka Mochioka and Shunpei Kakuda",
year = "1987",
month = "1",
day = "1",
doi = "10.2331/suisan.53.543",
language = "English",
volume = "53",
pages = "543--549",
journal = "Nippon Suisan Gakkaishi",
issn = "0021-5392",
publisher = "Nihon Suisan Gakkai",
number = "4",

}

TY - JOUR

T1 - Otolith Microstructure and Ecology of the Conger Eel (Congen myriaster) Larvae Collected in the Seto Inland Sea, Japan

AU - Tanaka, Kuniaki

AU - Yamada, Juro

AU - Tabeta, Osame

AU - Mochioka, Noritaka

AU - Kakuda, Shunpei

PY - 1987/1/1

Y1 - 1987/1/1

N2 - Otolith microstructure of the conger eel (Conger myriaster) larvae was observed using the scanning electron microscope with reference to the ecology in the Seto Inland Sea, Japan. The radii and the number of rings of the otoliths from the developing stage larvae were 104–145 μm and 123–172, respectively, while those from the metamorphic stage larvae were 140–496 μm and 159–212, respectively. The number of rings correlated highly with the radius of otoliths (r—0.905). The growth of radius and increase of number of rings were recognized for the first time in the otolith of the conger eel larvae in relation to growth of the head during the metamorphic stage. It was assumed that narrow and clear rings in the range from the first to about the 140th-150th ring correspond to the period from hatching to developing stage of leptocephalus, while wide rings in the range from about the 150th ring to the otolith margin corresponed to the period from the latest developing stage to the metamorphic stage. The daily growth rhythm in the otolith could not be proved from reared larvae due to the disturbance of ring arrangement in the marginal region.

AB - Otolith microstructure of the conger eel (Conger myriaster) larvae was observed using the scanning electron microscope with reference to the ecology in the Seto Inland Sea, Japan. The radii and the number of rings of the otoliths from the developing stage larvae were 104–145 μm and 123–172, respectively, while those from the metamorphic stage larvae were 140–496 μm and 159–212, respectively. The number of rings correlated highly with the radius of otoliths (r—0.905). The growth of radius and increase of number of rings were recognized for the first time in the otolith of the conger eel larvae in relation to growth of the head during the metamorphic stage. It was assumed that narrow and clear rings in the range from the first to about the 140th-150th ring correspond to the period from hatching to developing stage of leptocephalus, while wide rings in the range from about the 150th ring to the otolith margin corresponed to the period from the latest developing stage to the metamorphic stage. The daily growth rhythm in the otolith could not be proved from reared larvae due to the disturbance of ring arrangement in the marginal region.

UR - http://www.scopus.com/inward/record.url?scp=85008280406&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85008280406&partnerID=8YFLogxK

U2 - 10.2331/suisan.53.543

DO - 10.2331/suisan.53.543

M3 - Article

AN - SCOPUS:85008280406

VL - 53

SP - 543

EP - 549

JO - Nippon Suisan Gakkaishi

JF - Nippon Suisan Gakkaishi

SN - 0021-5392

IS - 4

ER -