Larval development of the oriental lancelet, Branchiostoma belcheri, in laboratory mass culture.

Larval development of the oriental lancelet, Branchiostoma belcheri, in laboratory mass culture. Research Abstract Details 

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Larval development of the oriental lancelet, Branchiostoma belcheri, in laboratory mass culture. Abstract Text:

Makoto Urata,Nobuo Yamaguchi,Yasuhisa Henmi,Kinya Yasui,

We are successfully maintaining a laboratory colony of the lancelet Branchiostoma belcheri bred in the laboratory. Based on living individuals in this mass culture, morphological characteristics from the seven-day larval to benthic juvenile stages have been studied. Most striking was that later larval development of B. belcheri showed great individual variation even in a rather stable culture environment. Metamorphosis first occurred on 60 days post fertilization (dpf) and was continuously observed throughout the present study up to 100 dpf. Morphological traits such as the number of primary gill slits and body size at the start of metamorphosis are apparently affected by culture condition. Body size measured in the largest individuals showed nearly linear growth at 0.087 mm/day. The variability found in larval development calls for caution when developmental stages and chronological ages are compared between populations. However, the developmental flexibility of this animal also raises the possibility that growth and sexual maturation could be controlled artificially in captivity.

Larval development of the oriental lancelet, Branchiostoma belcheri, in laboratory mass culture. Publishing Authors By Initials

M Urata,N Yamaguchi,Y Henmi,K Yasui,

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Larval development of the oriental lancelet, Branchiostoma belcheri, in laboratory mass culture. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Zoological science

VOLUME: 24

Page Numbers: 787-97

Journal Abbreviation: Zool. Sci.

ISSN: 0289-0003

DAY: 25

MONTH: Aug

YEAR: 2007

Larval development of the oriental lancelet, Branchiostoma belcheri, in laboratory mass culture. Information

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LANGUAGE: eng

NlmUniqueID: 8702287

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Grant and Affiliation Information for Larval development of the oriental lancelet, Branchiostoma belcheri, in laboratory mass culture.

AFFILIATION: Marine Biological Laboratory, Graduate School of Science, Hiroshima University, 2445 Mukaishima, Onomichi, Hiroshima 722-0073, Japan.

Country: Japan

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MEDLINETA: Zoolog Sci

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