Morphometrics, body condition, and growth of the ringed seal ( Pusa hispida saimensis ) in Lake Saimaa: Implications for conservation
Abstract Morphometrics and growth of the critically endangered Saimaa ringed seal ( Pusa hispida saimensis ), which inhabits a freshwater lake in Finland were studied using data from 344 carcasses. This study presents the first detailed information on ringed seal pup growth and body condition from b...
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crwiley:10.1111/mms.12256 2023-12-03T10:29:23+01:00 Morphometrics, body condition, and growth of the ringed seal ( Pusa hispida saimensis ) in Lake Saimaa: Implications for conservation Auttila, Miina Kurkilahti, Mika Niemi, Marja Levänen, Riikka Sipilä, Tero Isomursu, Marja Koskela, Jouni Kunnasranta, Mervi WWF Finland Raija Ossi Tuuliainen Foundation 2015 http://dx.doi.org/10.1111/mms.12256 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12256 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12256 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 32, issue 1, page 252-267 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2015 crwiley https://doi.org/10.1111/mms.12256 2023-11-09T14:07:39Z Abstract Morphometrics and growth of the critically endangered Saimaa ringed seal ( Pusa hispida saimensis ), which inhabits a freshwater lake in Finland were studied using data from 344 carcasses. This study presents the first detailed information on ringed seal pup growth and body condition from birth to the age of one year. Newborn pups were on average 68 cm long and weighed 5 kg. Pups attained the majority of their first year growth during the nursing period. Body condition and growth declined after weaning, but pups recovered from postweaning nutritional deprivation at the age of 8 mo. The seals achieved their maximum body length, girth, and mandible size around the age of 4 yr, and asymptotic body mass two years later. Baculum growth indicated that males reached sexual maturity at age 5–6 yr. The Saimaa ringed seals' asymptotic body length and mass were 132 cm and 59 kg, respectively, which is similar to medium sized marine ringed seals. Saimaa ringed seals' survival to adulthood is extremely low due to high bycatch mortality; furthermore climate change may hamper pup growth and elevate mortality. Therefore we recommend continuation of fishing closures to improve pup survival. Article in Journal/Newspaper Pusa hispida ringed seal Wiley Online Library (via Crossref) Marine Mammal Science 32 1 252 267 |
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Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Auttila, Miina Kurkilahti, Mika Niemi, Marja Levänen, Riikka Sipilä, Tero Isomursu, Marja Koskela, Jouni Kunnasranta, Mervi Morphometrics, body condition, and growth of the ringed seal ( Pusa hispida saimensis ) in Lake Saimaa: Implications for conservation |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Morphometrics and growth of the critically endangered Saimaa ringed seal ( Pusa hispida saimensis ), which inhabits a freshwater lake in Finland were studied using data from 344 carcasses. This study presents the first detailed information on ringed seal pup growth and body condition from birth to the age of one year. Newborn pups were on average 68 cm long and weighed 5 kg. Pups attained the majority of their first year growth during the nursing period. Body condition and growth declined after weaning, but pups recovered from postweaning nutritional deprivation at the age of 8 mo. The seals achieved their maximum body length, girth, and mandible size around the age of 4 yr, and asymptotic body mass two years later. Baculum growth indicated that males reached sexual maturity at age 5–6 yr. The Saimaa ringed seals' asymptotic body length and mass were 132 cm and 59 kg, respectively, which is similar to medium sized marine ringed seals. Saimaa ringed seals' survival to adulthood is extremely low due to high bycatch mortality; furthermore climate change may hamper pup growth and elevate mortality. Therefore we recommend continuation of fishing closures to improve pup survival. |
author2 |
WWF Finland Raija Ossi Tuuliainen Foundation |
format |
Article in Journal/Newspaper |
author |
Auttila, Miina Kurkilahti, Mika Niemi, Marja Levänen, Riikka Sipilä, Tero Isomursu, Marja Koskela, Jouni Kunnasranta, Mervi |
author_facet |
Auttila, Miina Kurkilahti, Mika Niemi, Marja Levänen, Riikka Sipilä, Tero Isomursu, Marja Koskela, Jouni Kunnasranta, Mervi |
author_sort |
Auttila, Miina |
title |
Morphometrics, body condition, and growth of the ringed seal ( Pusa hispida saimensis ) in Lake Saimaa: Implications for conservation |
title_short |
Morphometrics, body condition, and growth of the ringed seal ( Pusa hispida saimensis ) in Lake Saimaa: Implications for conservation |
title_full |
Morphometrics, body condition, and growth of the ringed seal ( Pusa hispida saimensis ) in Lake Saimaa: Implications for conservation |
title_fullStr |
Morphometrics, body condition, and growth of the ringed seal ( Pusa hispida saimensis ) in Lake Saimaa: Implications for conservation |
title_full_unstemmed |
Morphometrics, body condition, and growth of the ringed seal ( Pusa hispida saimensis ) in Lake Saimaa: Implications for conservation |
title_sort |
morphometrics, body condition, and growth of the ringed seal ( pusa hispida saimensis ) in lake saimaa: implications for conservation |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/mms.12256 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12256 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12256 |
genre |
Pusa hispida ringed seal |
genre_facet |
Pusa hispida ringed seal |
op_source |
Marine Mammal Science volume 32, issue 1, page 252-267 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mms.12256 |
container_title |
Marine Mammal Science |
container_volume |
32 |
container_issue |
1 |
container_start_page |
252 |
op_container_end_page |
267 |
_version_ |
1784254692973346816 |