Stages of embryonic development in the Atlantic cod Gadus morhua
The early development of the Atlantic cod, Gadus morhua was studied from fertilization until first-feeding. Multiple families were reared at 7degreesC and a developmental staging series was prepared using morphological landmarks visible with the light microscope. Stages were named rather than number...
Published in: | Journal of Morphology |
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Online Access: | https://research-portal.st-andrews.ac.uk/en/publications/403407fd-a458-4e73-96f4-5cc53a1e3bff https://doi.org/10.1002/jmor.10222 http://www.scopus.com/inward/record.url?scp=1542379770&partnerID=8YFLogxK |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/403407fd-a458-4e73-96f4-5cc53a1e3bff 2024-10-06T13:47:10+00:00 Stages of embryonic development in the Atlantic cod Gadus morhua Hall, TE Smith, P Johnston, Ian Alistair 2004-03 https://research-portal.st-andrews.ac.uk/en/publications/403407fd-a458-4e73-96f4-5cc53a1e3bff https://doi.org/10.1002/jmor.10222 http://www.scopus.com/inward/record.url?scp=1542379770&partnerID=8YFLogxK eng eng https://research-portal.st-andrews.ac.uk/en/publications/403407fd-a458-4e73-96f4-5cc53a1e3bff info:eu-repo/semantics/restrictedAccess Hall , TE , Smith , P & Johnston , I A 2004 , ' Stages of embryonic development in the Atlantic cod Gadus morhua ' , Journal of Morphology , vol. 259 , no. 3 , pp. 255-270 . https://doi.org/10.1002/jmor.10222 Gadus morhua somites histology larva-1 gadoid embryonic development HERRING CLUPEA-HARENGUS EARLY LARVAL STAGES BRACHYDANIO-RERIO SALMO-TRUTTA NEURAL-TUBE ZEBRAFISH TEMPERATURE NOTOCHORD INDUCTION EVOLUTION article 2004 ftunstandrewcris https://doi.org/10.1002/jmor.10222 2024-09-11T23:41:06Z The early development of the Atlantic cod, Gadus morhua was studied from fertilization until first-feeding. Multiple families were reared at 7degreesC and a developmental staging series was prepared using morphological landmarks visible with the light microscope. Stages were named rather than numbered to allow for future additions and broadly grouped into larger time intervals called periods. The most useful staging features were found to be initially cell number, and later in development, somite number. The mean cell cycle time for the first six cleavages was 135 min and the linear regression equation for development of somites(s) over time W was s = 0.29t - 18.14. The segmentation period began at 220 h postfertilization (hpf), and unlike some other teleosts, the addition of new somites continued throughout the majority of embryonic development, until just prior to hatching. Hatching occurred at 256 hpf, after which individuals remained motionless at the water's surface, undergoing negative phototaxis only after the first day posthatch. The first-feeding stage was reached at the end of the third day posthatch, subsequent to development of a functional jaw and hindgut. This staging series provides an essential baseline reference for future experiments involving developing cod embryos and for the aquaculture industry. Article in Journal/Newspaper atlantic cod Gadus morhua University of St Andrews: Research Portal Journal of Morphology 259 3 255 270 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Gadus morhua somites histology larva-1 gadoid embryonic development HERRING CLUPEA-HARENGUS EARLY LARVAL STAGES BRACHYDANIO-RERIO SALMO-TRUTTA NEURAL-TUBE ZEBRAFISH TEMPERATURE NOTOCHORD INDUCTION EVOLUTION |
spellingShingle |
Gadus morhua somites histology larva-1 gadoid embryonic development HERRING CLUPEA-HARENGUS EARLY LARVAL STAGES BRACHYDANIO-RERIO SALMO-TRUTTA NEURAL-TUBE ZEBRAFISH TEMPERATURE NOTOCHORD INDUCTION EVOLUTION Hall, TE Smith, P Johnston, Ian Alistair Stages of embryonic development in the Atlantic cod Gadus morhua |
topic_facet |
Gadus morhua somites histology larva-1 gadoid embryonic development HERRING CLUPEA-HARENGUS EARLY LARVAL STAGES BRACHYDANIO-RERIO SALMO-TRUTTA NEURAL-TUBE ZEBRAFISH TEMPERATURE NOTOCHORD INDUCTION EVOLUTION |
description |
The early development of the Atlantic cod, Gadus morhua was studied from fertilization until first-feeding. Multiple families were reared at 7degreesC and a developmental staging series was prepared using morphological landmarks visible with the light microscope. Stages were named rather than numbered to allow for future additions and broadly grouped into larger time intervals called periods. The most useful staging features were found to be initially cell number, and later in development, somite number. The mean cell cycle time for the first six cleavages was 135 min and the linear regression equation for development of somites(s) over time W was s = 0.29t - 18.14. The segmentation period began at 220 h postfertilization (hpf), and unlike some other teleosts, the addition of new somites continued throughout the majority of embryonic development, until just prior to hatching. Hatching occurred at 256 hpf, after which individuals remained motionless at the water's surface, undergoing negative phototaxis only after the first day posthatch. The first-feeding stage was reached at the end of the third day posthatch, subsequent to development of a functional jaw and hindgut. This staging series provides an essential baseline reference for future experiments involving developing cod embryos and for the aquaculture industry. |
format |
Article in Journal/Newspaper |
author |
Hall, TE Smith, P Johnston, Ian Alistair |
author_facet |
Hall, TE Smith, P Johnston, Ian Alistair |
author_sort |
Hall, TE |
title |
Stages of embryonic development in the Atlantic cod Gadus morhua |
title_short |
Stages of embryonic development in the Atlantic cod Gadus morhua |
title_full |
Stages of embryonic development in the Atlantic cod Gadus morhua |
title_fullStr |
Stages of embryonic development in the Atlantic cod Gadus morhua |
title_full_unstemmed |
Stages of embryonic development in the Atlantic cod Gadus morhua |
title_sort |
stages of embryonic development in the atlantic cod gadus morhua |
publishDate |
2004 |
url |
https://research-portal.st-andrews.ac.uk/en/publications/403407fd-a458-4e73-96f4-5cc53a1e3bff https://doi.org/10.1002/jmor.10222 http://www.scopus.com/inward/record.url?scp=1542379770&partnerID=8YFLogxK |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Hall , TE , Smith , P & Johnston , I A 2004 , ' Stages of embryonic development in the Atlantic cod Gadus morhua ' , Journal of Morphology , vol. 259 , no. 3 , pp. 255-270 . https://doi.org/10.1002/jmor.10222 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/publications/403407fd-a458-4e73-96f4-5cc53a1e3bff |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/jmor.10222 |
container_title |
Journal of Morphology |
container_volume |
259 |
container_issue |
3 |
container_start_page |
255 |
op_container_end_page |
270 |
_version_ |
1812175407677440000 |