On the Biology of an Intertidal Chthamalid (Crustacea, Cirripedia) from the Chukchi Sea
A Pacific-boreal species, Chthamalus dalli occurs in the narrow intertidal zone near Cape Thompson, Alaska. Diatoms and filamentous green algae, but no other animals, were associated with the barnacles, which apparently survive the winter frozen in the ice foot. Growth is less than in southern speci...
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1967
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/66325 2023-05-15T14:19:20+02:00 On the Biology of an Intertidal Chthamalid (Crustacea, Cirripedia) from the Chukchi Sea Southward, A.J. Southward, E.C. 1967-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66325 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66325/50238 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66325 ARCTIC; Vol. 20 No. 1 (1967): March: 1–60; 8-20 1923-1245 0004-0843 Crustacea Marine ecology Winter ecology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1967 ftunivcalgaryojs 2022-03-22T21:23:12Z A Pacific-boreal species, Chthamalus dalli occurs in the narrow intertidal zone near Cape Thompson, Alaska. Diatoms and filamentous green algae, but no other animals, were associated with the barnacles, which apparently survive the winter frozen in the ice foot. Growth is less than in southern species, but continues for five or more years; maturity is reached in two years and breeding can occur at a water temperature of 6C. There appears to be only a very slight cold adaptation, shown by cirral activity, compared with C. dalli from Southeast Alaska and southern California. Sur la biologie d'un chthamalide intertidal (Crustacea, Cirripedia) de la mer de Tchoukotsk. Près du cap Thompson, Alaska, on trouve dans la zone intertidale l'espèce pacifique-boréale Chthamalus dalli. A part quelques algues éphémères, les autres organismes sont absents de la zone intertidale: la cirripède en question passe l'hiver gelée dans le pied-de-glace. La croissance, étudiée sur les anneaux de la coquille, semble plus lente que dans des localités plus méridionales, mais dure cinq ans ou plus: la maturité est atteinte en deux ans et la reproduction a lieu à une température de l'eau de mer de 6ºC. La comparaison entre les courbes de l'activité cirrale et de la température montre un léger déplacement latéral (adaptation au froid) par rapport à la même espèce dans le sud-est de l'Alaska et le sud de la Californie.Les auteurs discutent de l'absence de l'espèce boréale-arctique Balanus balanoides et concluent que pour les conditions hydrographiques existantes, la période de reproduction estivale plus longue chez C. dalli a pu lui donner un avantage sur B. balanoides dans la colonisation de l'est de la mer de Tchoukotsk. Article in Journal/Newspaper Arctic Arctique* Chukchi Chukchi Sea Alaska University of Calgary Journal Hosting Chukchi Sea Pacific ARCTIC 20 1 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
Crustacea Marine ecology Winter ecology |
spellingShingle |
Crustacea Marine ecology Winter ecology Southward, A.J. Southward, E.C. On the Biology of an Intertidal Chthamalid (Crustacea, Cirripedia) from the Chukchi Sea |
topic_facet |
Crustacea Marine ecology Winter ecology |
description |
A Pacific-boreal species, Chthamalus dalli occurs in the narrow intertidal zone near Cape Thompson, Alaska. Diatoms and filamentous green algae, but no other animals, were associated with the barnacles, which apparently survive the winter frozen in the ice foot. Growth is less than in southern species, but continues for five or more years; maturity is reached in two years and breeding can occur at a water temperature of 6C. There appears to be only a very slight cold adaptation, shown by cirral activity, compared with C. dalli from Southeast Alaska and southern California. Sur la biologie d'un chthamalide intertidal (Crustacea, Cirripedia) de la mer de Tchoukotsk. Près du cap Thompson, Alaska, on trouve dans la zone intertidale l'espèce pacifique-boréale Chthamalus dalli. A part quelques algues éphémères, les autres organismes sont absents de la zone intertidale: la cirripède en question passe l'hiver gelée dans le pied-de-glace. La croissance, étudiée sur les anneaux de la coquille, semble plus lente que dans des localités plus méridionales, mais dure cinq ans ou plus: la maturité est atteinte en deux ans et la reproduction a lieu à une température de l'eau de mer de 6ºC. La comparaison entre les courbes de l'activité cirrale et de la température montre un léger déplacement latéral (adaptation au froid) par rapport à la même espèce dans le sud-est de l'Alaska et le sud de la Californie.Les auteurs discutent de l'absence de l'espèce boréale-arctique Balanus balanoides et concluent que pour les conditions hydrographiques existantes, la période de reproduction estivale plus longue chez C. dalli a pu lui donner un avantage sur B. balanoides dans la colonisation de l'est de la mer de Tchoukotsk. |
format |
Article in Journal/Newspaper |
author |
Southward, A.J. Southward, E.C. |
author_facet |
Southward, A.J. Southward, E.C. |
author_sort |
Southward, A.J. |
title |
On the Biology of an Intertidal Chthamalid (Crustacea, Cirripedia) from the Chukchi Sea |
title_short |
On the Biology of an Intertidal Chthamalid (Crustacea, Cirripedia) from the Chukchi Sea |
title_full |
On the Biology of an Intertidal Chthamalid (Crustacea, Cirripedia) from the Chukchi Sea |
title_fullStr |
On the Biology of an Intertidal Chthamalid (Crustacea, Cirripedia) from the Chukchi Sea |
title_full_unstemmed |
On the Biology of an Intertidal Chthamalid (Crustacea, Cirripedia) from the Chukchi Sea |
title_sort |
on the biology of an intertidal chthamalid (crustacea, cirripedia) from the chukchi sea |
publisher |
The Arctic Institute of North America |
publishDate |
1967 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66325 |
geographic |
Chukchi Sea Pacific |
geographic_facet |
Chukchi Sea Pacific |
genre |
Arctic Arctique* Chukchi Chukchi Sea Alaska |
genre_facet |
Arctic Arctique* Chukchi Chukchi Sea Alaska |
op_source |
ARCTIC; Vol. 20 No. 1 (1967): March: 1–60; 8-20 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66325/50238 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66325 |
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ARCTIC |
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20 |
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1 |
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1766291043648536576 |