Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands
The reproductive biology of one of the most abundant notothenioids, Patagonotothen ramsayi, was investigated between February 2003 and November 2004 on the Falkland and Patagonian Shelves (Southwest Atlantic). Male and female P. ramsayi were mature at 27.6 and 24.8 cm LT, respectively. P. ramsayi is...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Centro Oceanográfico de Vigo
2012
|
Subjects: | |
Online Access: | http://hdl.handle.net/10508/970 http://www.springerlink.com/content/yu35284321550rm3/fulltext.pdf |
id |
ftieo:oai:repositorio.ieo.es:10508/970 |
---|---|
record_format |
openpolar |
spelling |
ftieo:oai:repositorio.ieo.es:10508/970 2023-05-15T18:02:01+02:00 Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands Brickle, P. (Paul) Laptikhovsky, V. (Vladimir) Arkhipkin, A. (Alexander) Portela, J. (Julio) 2003-2004 Atlantic Ocean South Atlantic Southwest Atlantic Patagonian Shelf 2012-11-12 http://hdl.handle.net/10508/970 http://www.springerlink.com/content/yu35284321550rm3/fulltext.pdf eng eng Centro Oceanográfico de Vigo http://www.springerlink.com/content/yu35284321550rm3/fulltext.pdf DOI 10.1007/s00300-005-0090-5 http://hdl.handle.net/10508/970 P. Brickle, V. Laptikhovsky, A. Arkhipkin and J. Portela (2006). Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands. Polar Biology, 29: 570–580 (2006) Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ CC-BY-NC-ND article 2012 ftieo 2022-07-26T23:46:52Z The reproductive biology of one of the most abundant notothenioids, Patagonotothen ramsayi, was investigated between February 2003 and November 2004 on the Falkland and Patagonian Shelves (Southwest Atlantic). Male and female P. ramsayi were mature at 27.6 and 24.8 cm LT, respectively. P. ramsayi is a total spawner, with a total fecundity ranging between 24,300 and 76,700 eggs. Spawning occurs on the shelf breaks between June and August with the peak in gonado-somatic indices in June. Analysis of length frequency distributions over the year and sex ratios of mature fish during the spawning season may indicate the presence of a nesting and nest guarding behaviour in male fish, similar to other rockcods. Features of its reproductive strategy, which enabled P. ramsayi to dominate the medium-sized demersal fishes on the Patagonian shelf are discussed and compared with those of other nototheniids and cottid sculpins from the Northern Hemisphere. Article in Journal/Newspaper Polar Biology Instituto Español de Oceanografía: e-IEO |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
description |
The reproductive biology of one of the most abundant notothenioids, Patagonotothen ramsayi, was investigated between February 2003 and November 2004 on the Falkland and Patagonian Shelves (Southwest Atlantic). Male and female P. ramsayi were mature at 27.6 and 24.8 cm LT, respectively. P. ramsayi is a total spawner, with a total fecundity ranging between 24,300 and 76,700 eggs. Spawning occurs on the shelf breaks between June and August with the peak in gonado-somatic indices in June. Analysis of length frequency distributions over the year and sex ratios of mature fish during the spawning season may indicate the presence of a nesting and nest guarding behaviour in male fish, similar to other rockcods. Features of its reproductive strategy, which enabled P. ramsayi to dominate the medium-sized demersal fishes on the Patagonian shelf are discussed and compared with those of other nototheniids and cottid sculpins from the Northern Hemisphere. |
format |
Article in Journal/Newspaper |
author |
Brickle, P. (Paul) Laptikhovsky, V. (Vladimir) Arkhipkin, A. (Alexander) Portela, J. (Julio) |
spellingShingle |
Brickle, P. (Paul) Laptikhovsky, V. (Vladimir) Arkhipkin, A. (Alexander) Portela, J. (Julio) Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands |
author_facet |
Brickle, P. (Paul) Laptikhovsky, V. (Vladimir) Arkhipkin, A. (Alexander) Portela, J. (Julio) |
author_sort |
Brickle, P. (Paul) |
title |
Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands |
title_short |
Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands |
title_full |
Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands |
title_fullStr |
Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands |
title_full_unstemmed |
Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands |
title_sort |
reproductive biology of patagonotothen ramsayi (regan, 1913) (pisces: nototheniidae) around the falkland islands |
publisher |
Centro Oceanográfico de Vigo |
publishDate |
2012 |
url |
http://hdl.handle.net/10508/970 http://www.springerlink.com/content/yu35284321550rm3/fulltext.pdf |
op_coverage |
2003-2004 Atlantic Ocean South Atlantic Southwest Atlantic Patagonian Shelf |
genre |
Polar Biology |
genre_facet |
Polar Biology |
op_relation |
http://www.springerlink.com/content/yu35284321550rm3/fulltext.pdf DOI 10.1007/s00300-005-0090-5 http://hdl.handle.net/10508/970 P. Brickle, V. Laptikhovsky, A. Arkhipkin and J. Portela (2006). Reproductive biology of Patagonotothen ramsayi (Regan, 1913) (Pisces: Nototheniidae) around the Falkland Islands. Polar Biology, 29: 570–580 (2006) |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766171660233211904 |