ONTOGENETIC AND SEASONAL VARIATION IN BLOOD PARAMETERS IN SOUTHERN ELEPHANT SEALS
A bstract Blood samples were collected from 156 free‐ranging southern elephant seals ( Mirounga leonina ) from Peninsula Valdes to study the variation in blood parameters related to ontogeny and the annual cycle. Samples ranged from newborn pups to adults. Interactions between age and sex showed dif...
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crwiley:10.1111/j.1748-7692.2001.tb01302.x 2023-12-03T10:22:07+01:00 ONTOGENETIC AND SEASONAL VARIATION IN BLOOD PARAMETERS IN SOUTHERN ELEPHANT SEALS Lewis, Mirtha Campagna, Claudio Uhart, Marcela Ortiz, Charles Leo 2001 http://dx.doi.org/10.1111/j.1748-7692.2001.tb01302.x http://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2001.tb01302.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2001.tb01302.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 17, issue 4, page 862-872 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2001 crwiley https://doi.org/10.1111/j.1748-7692.2001.tb01302.x 2023-11-09T14:33:50Z A bstract Blood samples were collected from 156 free‐ranging southern elephant seals ( Mirounga leonina ) from Peninsula Valdes to study the variation in blood parameters related to ontogeny and the annual cycle. Samples ranged from newborn pups to adults. Interactions between age and sex showed different trends in ontogenetic changes of blood parameters (MANOVA, Wilkis' Lamb‐da 12,243 = 0.75, P < 0.01). The hematocrit (HCT) and hemoglobin concentration (HB) reached adult levels early in life. Weanlings had 14 % higher HCT than pups, and similar levels to juveniles and adults (HCT range = 46%‐62 %). HB of males were below those of females from weaning (18.4 vs . 20.3 g/dl) to adulthood (19.8 vs . 22.3 g/dl). Red blood cell counts (RBC) did not change significantly from pups to juveniles (2.8–3.2 10 6 /μl), but varied for adults at different times of the annual cycle. Breeding females had higher RBC than molting females (3.1 vs. 2.4 10 6 /μl). Changes in blood parameters are related to the development of diving capabilities from pups to juveniles. Changes in adults were associated with different stages of the annual cycle, and these may be the result of the requirements imposed by pregnancy and fasting duration. Article in Journal/Newspaper Elephant Seals Mirounga leonina Southern Elephant Seals Wiley Online Library (via Crossref) Marine Mammal Science 17 4 862 872 |
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Open Polar |
collection |
Wiley Online Library (via Crossref) |
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crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
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Aquatic Science Ecology, Evolution, Behavior and Systematics Lewis, Mirtha Campagna, Claudio Uhart, Marcela Ortiz, Charles Leo ONTOGENETIC AND SEASONAL VARIATION IN BLOOD PARAMETERS IN SOUTHERN ELEPHANT SEALS |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A bstract Blood samples were collected from 156 free‐ranging southern elephant seals ( Mirounga leonina ) from Peninsula Valdes to study the variation in blood parameters related to ontogeny and the annual cycle. Samples ranged from newborn pups to adults. Interactions between age and sex showed different trends in ontogenetic changes of blood parameters (MANOVA, Wilkis' Lamb‐da 12,243 = 0.75, P < 0.01). The hematocrit (HCT) and hemoglobin concentration (HB) reached adult levels early in life. Weanlings had 14 % higher HCT than pups, and similar levels to juveniles and adults (HCT range = 46%‐62 %). HB of males were below those of females from weaning (18.4 vs . 20.3 g/dl) to adulthood (19.8 vs . 22.3 g/dl). Red blood cell counts (RBC) did not change significantly from pups to juveniles (2.8–3.2 10 6 /μl), but varied for adults at different times of the annual cycle. Breeding females had higher RBC than molting females (3.1 vs. 2.4 10 6 /μl). Changes in blood parameters are related to the development of diving capabilities from pups to juveniles. Changes in adults were associated with different stages of the annual cycle, and these may be the result of the requirements imposed by pregnancy and fasting duration. |
format |
Article in Journal/Newspaper |
author |
Lewis, Mirtha Campagna, Claudio Uhart, Marcela Ortiz, Charles Leo |
author_facet |
Lewis, Mirtha Campagna, Claudio Uhart, Marcela Ortiz, Charles Leo |
author_sort |
Lewis, Mirtha |
title |
ONTOGENETIC AND SEASONAL VARIATION IN BLOOD PARAMETERS IN SOUTHERN ELEPHANT SEALS |
title_short |
ONTOGENETIC AND SEASONAL VARIATION IN BLOOD PARAMETERS IN SOUTHERN ELEPHANT SEALS |
title_full |
ONTOGENETIC AND SEASONAL VARIATION IN BLOOD PARAMETERS IN SOUTHERN ELEPHANT SEALS |
title_fullStr |
ONTOGENETIC AND SEASONAL VARIATION IN BLOOD PARAMETERS IN SOUTHERN ELEPHANT SEALS |
title_full_unstemmed |
ONTOGENETIC AND SEASONAL VARIATION IN BLOOD PARAMETERS IN SOUTHERN ELEPHANT SEALS |
title_sort |
ontogenetic and seasonal variation in blood parameters in southern elephant seals |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1111/j.1748-7692.2001.tb01302.x http://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2001.tb01302.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2001.tb01302.x |
genre |
Elephant Seals Mirounga leonina Southern Elephant Seals |
genre_facet |
Elephant Seals Mirounga leonina Southern Elephant Seals |
op_source |
Marine Mammal Science volume 17, issue 4, page 862-872 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.2001.tb01302.x |
container_title |
Marine Mammal Science |
container_volume |
17 |
container_issue |
4 |
container_start_page |
862 |
op_container_end_page |
872 |
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1784269963514609664 |