ESTIMATION OF TOTAL BODY WATER IN HARBOR SEALS: HOW USEFUL IS BIOELECTRICAL IMPEDANCE ANALYSIS?
A bstract We evaluated bioelectrical impedance analysis (BIA) as a means of rapidly and inexpensively estimating total body water (TBW) of harbor seals ( Phoca vitulina ). Deuterium oxide dilution was used to estimate TBW in 17 adult females and 16 of their pups between birth and late lactation. Iso...
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crwiley:10.1111/j.1748-7692.1998.tb00761.x 2023-12-03T10:29:06+01:00 ESTIMATION OF TOTAL BODY WATER IN HARBOR SEALS: HOW USEFUL IS BIOELECTRICAL IMPEDANCE ANALYSIS? Bowen, W. Don Boness, D. J. Iverson, S. J. 1998 http://dx.doi.org/10.1111/j.1748-7692.1998.tb00761.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1998.tb00761.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1998.tb00761.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 14, issue 4, page 765-777 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1998 crwiley https://doi.org/10.1111/j.1748-7692.1998.tb00761.x 2023-11-09T13:22:07Z A bstract We evaluated bioelectrical impedance analysis (BIA) as a means of rapidly and inexpensively estimating total body water (TBW) of harbor seals ( Phoca vitulina ). Deuterium oxide dilution was used to estimate TBW in 17 adult females and 16 of their pups between birth and late lactation. Isotope dilution was also used to determine TBW in 12 adult males early and 10 of these males late in the breeding season. At the same time, resistance ( Rs ) and reactance ( Xc ) measurements were taken using a tetrapolar, impedance plethysmograph (Model 101 A, RJL Systems). Seals were sedated with diazepam prior to taking BIA measurements. Within‐day duplicate Rs measurements on pups and adults, taken 2‐240 min apart, differed by an average of 3.0%± 1.4% ( n = 42, CV = 102%). Movement of the seal during BIA measurements caused variability in both Rs and Xc values. BIA measurements were generally poor predictors of TBW. Rs was significantly correlated with TBW in pups only ( Rs = 0.93, P = 0.001, n = 11). Bioelectrical conductor volume (length2/ Rs ) was significantly correlated with TBW only in adult females ( Rs = 0.63, P = 0.02, n = 14). We conclude that BIA is not a reliable method of estimating TBW in wild harbor seals. Article in Journal/Newspaper Phoca vitulina Wiley Online Library (via Crossref) Bia ENVELOPE(22.891,22.891,70.317,70.317) Marine Mammal Science 14 4 765 777 |
institution |
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 Bowen, W. Don Boness, D. J. Iverson, S. J. ESTIMATION OF TOTAL BODY WATER IN HARBOR SEALS: HOW USEFUL IS BIOELECTRICAL IMPEDANCE ANALYSIS? |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A bstract We evaluated bioelectrical impedance analysis (BIA) as a means of rapidly and inexpensively estimating total body water (TBW) of harbor seals ( Phoca vitulina ). Deuterium oxide dilution was used to estimate TBW in 17 adult females and 16 of their pups between birth and late lactation. Isotope dilution was also used to determine TBW in 12 adult males early and 10 of these males late in the breeding season. At the same time, resistance ( Rs ) and reactance ( Xc ) measurements were taken using a tetrapolar, impedance plethysmograph (Model 101 A, RJL Systems). Seals were sedated with diazepam prior to taking BIA measurements. Within‐day duplicate Rs measurements on pups and adults, taken 2‐240 min apart, differed by an average of 3.0%± 1.4% ( n = 42, CV = 102%). Movement of the seal during BIA measurements caused variability in both Rs and Xc values. BIA measurements were generally poor predictors of TBW. Rs was significantly correlated with TBW in pups only ( Rs = 0.93, P = 0.001, n = 11). Bioelectrical conductor volume (length2/ Rs ) was significantly correlated with TBW only in adult females ( Rs = 0.63, P = 0.02, n = 14). We conclude that BIA is not a reliable method of estimating TBW in wild harbor seals. |
format |
Article in Journal/Newspaper |
author |
Bowen, W. Don Boness, D. J. Iverson, S. J. |
author_facet |
Bowen, W. Don Boness, D. J. Iverson, S. J. |
author_sort |
Bowen, W. Don |
title |
ESTIMATION OF TOTAL BODY WATER IN HARBOR SEALS: HOW USEFUL IS BIOELECTRICAL IMPEDANCE ANALYSIS? |
title_short |
ESTIMATION OF TOTAL BODY WATER IN HARBOR SEALS: HOW USEFUL IS BIOELECTRICAL IMPEDANCE ANALYSIS? |
title_full |
ESTIMATION OF TOTAL BODY WATER IN HARBOR SEALS: HOW USEFUL IS BIOELECTRICAL IMPEDANCE ANALYSIS? |
title_fullStr |
ESTIMATION OF TOTAL BODY WATER IN HARBOR SEALS: HOW USEFUL IS BIOELECTRICAL IMPEDANCE ANALYSIS? |
title_full_unstemmed |
ESTIMATION OF TOTAL BODY WATER IN HARBOR SEALS: HOW USEFUL IS BIOELECTRICAL IMPEDANCE ANALYSIS? |
title_sort |
estimation of total body water in harbor seals: how useful is bioelectrical impedance analysis? |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.1111/j.1748-7692.1998.tb00761.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1998.tb00761.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1998.tb00761.x |
long_lat |
ENVELOPE(22.891,22.891,70.317,70.317) |
geographic |
Bia |
geographic_facet |
Bia |
genre |
Phoca vitulina |
genre_facet |
Phoca vitulina |
op_source |
Marine Mammal Science volume 14, issue 4, page 765-777 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.1998.tb00761.x |
container_title |
Marine Mammal Science |
container_volume |
14 |
container_issue |
4 |
container_start_page |
765 |
op_container_end_page |
777 |
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1784254232481759232 |