Integument in Antarctic seals: A comparative study and its relation to extreme environments
Abstract Due to the semi‐aquatic lifestyle of seals and the extreme climates they inhabit, their integumentary system has aroused the curiosity of several authors for more than a century. The aim of this contribution was to perform an exhaustive histological description of the integument Antarctic s...
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Online Access: | http://dx.doi.org/10.1111/azo.12212 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fazo.12212 https://onlinelibrary.wiley.com/doi/pdf/10.1111/azo.12212 |
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crwiley:10.1111/azo.12212 2024-09-15T17:44:14+00:00 Integument in Antarctic seals: A comparative study and its relation to extreme environments Krmpotic, Cecilia Mariana Loza, Cleopatra Mara Negrete, Javier Scarano, Alejo Carlos Carlini, Alfredo Armando Guerrero, Alicia Barbeito, Claudio Gustavo Universidad Nacional de La Plata Consejo Nacional de Investigaciones Científicas y Técnicas 2017 http://dx.doi.org/10.1111/azo.12212 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fazo.12212 https://onlinelibrary.wiley.com/doi/pdf/10.1111/azo.12212 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Acta Zoologica volume 99, issue 3, page 281-295 ISSN 0001-7272 1463-6395 journal-article 2017 crwiley https://doi.org/10.1111/azo.12212 2024-07-18T04:27:08Z Abstract Due to the semi‐aquatic lifestyle of seals and the extreme climates they inhabit, their integumentary system has aroused the curiosity of several authors for more than a century. The aim of this contribution was to perform an exhaustive histological description of the integument Antarctic seals through different methodological approaches in a comparative framework. The species considered include the ice‐obligate—Weddell ( Leptonychotes weddellii ) and leopard ( Hydrurga leptonyx ) seal—and the ice‐tolerant, and southern elephant seal ( Mirounga leonina ). In addition, we attempted to link the histological features to their different lifestyles. All three species showed features related to their amphibious lifestyle (i.e., parakeratotic epidermis with abundant melanin granules, dermis with numerous arteriovenous anastomoses and a great amount of elastic fibres). In aquatic mammals, parakeratosis would decrease cellular replacement, the great amount of melanin is related to the high exposure to solar radiation, the presence of arteriovenous anastomoses is related to thermoregulatory mechanisms, and the presence of elastic fibres is due to variations of thickness in the adipose tissue that requires high elasticity of the dermis. Article in Journal/Newspaper Antarc* Antarctic Elephant Seal Hydrurga leptonyx Mirounga leonina Southern Elephant Seal Wiley Online Library Acta Zoologica 99 3 281 295 |
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Wiley Online Library |
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English |
description |
Abstract Due to the semi‐aquatic lifestyle of seals and the extreme climates they inhabit, their integumentary system has aroused the curiosity of several authors for more than a century. The aim of this contribution was to perform an exhaustive histological description of the integument Antarctic seals through different methodological approaches in a comparative framework. The species considered include the ice‐obligate—Weddell ( Leptonychotes weddellii ) and leopard ( Hydrurga leptonyx ) seal—and the ice‐tolerant, and southern elephant seal ( Mirounga leonina ). In addition, we attempted to link the histological features to their different lifestyles. All three species showed features related to their amphibious lifestyle (i.e., parakeratotic epidermis with abundant melanin granules, dermis with numerous arteriovenous anastomoses and a great amount of elastic fibres). In aquatic mammals, parakeratosis would decrease cellular replacement, the great amount of melanin is related to the high exposure to solar radiation, the presence of arteriovenous anastomoses is related to thermoregulatory mechanisms, and the presence of elastic fibres is due to variations of thickness in the adipose tissue that requires high elasticity of the dermis. |
author2 |
Universidad Nacional de La Plata Consejo Nacional de Investigaciones Científicas y Técnicas |
format |
Article in Journal/Newspaper |
author |
Krmpotic, Cecilia Mariana Loza, Cleopatra Mara Negrete, Javier Scarano, Alejo Carlos Carlini, Alfredo Armando Guerrero, Alicia Barbeito, Claudio Gustavo |
spellingShingle |
Krmpotic, Cecilia Mariana Loza, Cleopatra Mara Negrete, Javier Scarano, Alejo Carlos Carlini, Alfredo Armando Guerrero, Alicia Barbeito, Claudio Gustavo Integument in Antarctic seals: A comparative study and its relation to extreme environments |
author_facet |
Krmpotic, Cecilia Mariana Loza, Cleopatra Mara Negrete, Javier Scarano, Alejo Carlos Carlini, Alfredo Armando Guerrero, Alicia Barbeito, Claudio Gustavo |
author_sort |
Krmpotic, Cecilia Mariana |
title |
Integument in Antarctic seals: A comparative study and its relation to extreme environments |
title_short |
Integument in Antarctic seals: A comparative study and its relation to extreme environments |
title_full |
Integument in Antarctic seals: A comparative study and its relation to extreme environments |
title_fullStr |
Integument in Antarctic seals: A comparative study and its relation to extreme environments |
title_full_unstemmed |
Integument in Antarctic seals: A comparative study and its relation to extreme environments |
title_sort |
integument in antarctic seals: a comparative study and its relation to extreme environments |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/azo.12212 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fazo.12212 https://onlinelibrary.wiley.com/doi/pdf/10.1111/azo.12212 |
genre |
Antarc* Antarctic Elephant Seal Hydrurga leptonyx Mirounga leonina Southern Elephant Seal |
genre_facet |
Antarc* Antarctic Elephant Seal Hydrurga leptonyx Mirounga leonina Southern Elephant Seal |
op_source |
Acta Zoologica volume 99, issue 3, page 281-295 ISSN 0001-7272 1463-6395 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/azo.12212 |
container_title |
Acta Zoologica |
container_volume |
99 |
container_issue |
3 |
container_start_page |
281 |
op_container_end_page |
295 |
_version_ |
1810491655137001472 |