The migrations of tope, Galeorhinus galeus (L), in the eastern North Atlantic as determined by tagging
Migrations of tope in the eastern North Atlantic, based on the recapture of 32 tope from a total of 491 released off the south coast of England and the north coast of Wales in the period 1957 to 1976, are described. The tags used were Petersen discs and rototags. The longest recorded migration of 25...
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Oxford University Press
1979
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fthighwire:oai:open-archive.highwire.org:icesjms:38/3/314 2023-05-15T17:30:23+02:00 The migrations of tope, Galeorhinus galeus (L), in the eastern North Atlantic as determined by tagging Holden, M. J. Horrod, R. G. 1979-08-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/38/3/314 https://doi.org/10.1093/icesjms/38.3.314 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/38/3/314 http://dx.doi.org/10.1093/icesjms/38.3.314 Copyright (C) 1979, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Articles TEXT 1979 fthighwire https://doi.org/10.1093/icesjms/38.3.314 2013-05-28T08:39:43Z Migrations of tope in the eastern North Atlantic, based on the recapture of 32 tope from a total of 491 released off the south coast of England and the north coast of Wales in the period 1957 to 1976, are described. The tags used were Petersen discs and rototags. The longest recorded migration of 2526 km was that of a tope recaptured at 28°00'N 16°00'W.One possible interpretation of the pattern of returns is that tope make a southerly migration from January to September and a return northerly migration from October to December. An alternative interpretation is that the majority of tope remain in the area of tagging throughout the year. The number of returns does not allow this inconsistency to be resolved. A possible reason suggested for the inconsistency is that immature and mature tope have different migration patterns. The relative return rate of Petersen discs to rototags was 1:4–75. All of the returns, with one exception, from south of 44°N were of tope tagged with rototags. It is concluded that rototags are better than Petersen discs for this type of experiment. Text North Atlantic HighWire Press (Stanford University) Petersen ENVELOPE(-101.250,-101.250,-71.917,-71.917) ICES Journal of Marine Science 38 3 314 317 |
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Open Polar |
collection |
HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
Articles |
spellingShingle |
Articles Holden, M. J. Horrod, R. G. The migrations of tope, Galeorhinus galeus (L), in the eastern North Atlantic as determined by tagging |
topic_facet |
Articles |
description |
Migrations of tope in the eastern North Atlantic, based on the recapture of 32 tope from a total of 491 released off the south coast of England and the north coast of Wales in the period 1957 to 1976, are described. The tags used were Petersen discs and rototags. The longest recorded migration of 2526 km was that of a tope recaptured at 28°00'N 16°00'W.One possible interpretation of the pattern of returns is that tope make a southerly migration from January to September and a return northerly migration from October to December. An alternative interpretation is that the majority of tope remain in the area of tagging throughout the year. The number of returns does not allow this inconsistency to be resolved. A possible reason suggested for the inconsistency is that immature and mature tope have different migration patterns. The relative return rate of Petersen discs to rototags was 1:4–75. All of the returns, with one exception, from south of 44°N were of tope tagged with rototags. It is concluded that rototags are better than Petersen discs for this type of experiment. |
format |
Text |
author |
Holden, M. J. Horrod, R. G. |
author_facet |
Holden, M. J. Horrod, R. G. |
author_sort |
Holden, M. J. |
title |
The migrations of tope, Galeorhinus galeus (L), in the eastern North Atlantic as determined by tagging |
title_short |
The migrations of tope, Galeorhinus galeus (L), in the eastern North Atlantic as determined by tagging |
title_full |
The migrations of tope, Galeorhinus galeus (L), in the eastern North Atlantic as determined by tagging |
title_fullStr |
The migrations of tope, Galeorhinus galeus (L), in the eastern North Atlantic as determined by tagging |
title_full_unstemmed |
The migrations of tope, Galeorhinus galeus (L), in the eastern North Atlantic as determined by tagging |
title_sort |
migrations of tope, galeorhinus galeus (l), in the eastern north atlantic as determined by tagging |
publisher |
Oxford University Press |
publishDate |
1979 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/38/3/314 https://doi.org/10.1093/icesjms/38.3.314 |
long_lat |
ENVELOPE(-101.250,-101.250,-71.917,-71.917) |
geographic |
Petersen |
geographic_facet |
Petersen |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/38/3/314 http://dx.doi.org/10.1093/icesjms/38.3.314 |
op_rights |
Copyright (C) 1979, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/38.3.314 |
container_title |
ICES Journal of Marine Science |
container_volume |
38 |
container_issue |
3 |
container_start_page |
314 |
op_container_end_page |
317 |
_version_ |
1766126750149902336 |