An experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise ( Phocoena phocoena )
Determination of elapsed time since death in small cetaceans can be important to our understanding of the nature of their interactions with fishing operations. This pilot study was conducted to determine the potential diagnostic usefulness of ocular fluid (vitreous humour) and core body temperature...
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Septentrio Academic Publishing
2003
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ftdoajarticles:oai:doaj.org/article:69788c4bf4f24f34a61470aa10b9e8a7 2023-05-15T16:33:27+02:00 An experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise ( Phocoena phocoena ) C Hood P-Y Daoust J Lien C Richter 2003-07-01T00:00:00Z https://doi.org/10.7557/3.2750 https://doaj.org/article/69788c4bf4f24f34a61470aa10b9e8a7 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2750 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2750 https://doaj.org/article/69788c4bf4f24f34a61470aa10b9e8a7 NAMMCO Scientific Publications, Vol 5, Iss 0, Pp 229-241 (2003) harbour porpoises by-catch ocular fluid time since death fisheries interactions Ecology QH540-549.5 article 2003 ftdoajarticles https://doi.org/10.7557/3.2750 2022-12-30T23:41:56Z Determination of elapsed time since death in small cetaceans can be important to our understanding of the nature of their interactions with fishing operations. This pilot study was conducted to determine the potential diagnostic usefulness of ocular fluid (vitreous humour) and core body temperature to estimate postmortem intervals in harbour porpoises (Phocoena phocoena). Core temperature and concentrations of various constituents of vitreous humour (glucose, urea, sodium, potassium, chloride, magnesium, calcium, and phosphorus) were determined in 24 harbour porpoises incidentally caught in groundfish gillnets in the waters of the Gulf of Maine and the Bay of Fundy. These parameters were compared to published values for rectal temperatures and the serum concentrations of several selected elements in live harbour porpoises. Glucose in vitreous humour decreased in dead animals compared to serum values in live ones; its level was positively correlated with core temperature. Potassium and magnesium in vitreous humour increased following death. These data suggest that most animals analysed had been dead for several hours. For the present, the methodology affords researchers an approach that appears to hold some promise. However, the most practical technique requires testing animals with a known time of death in order to derive a set of curves for ocular fluid values and temperature versus time that are appropriate for a statistical presentation of predictability for the time since death. Article in Journal/Newspaper Harbour porpoise Phocoena phocoena Directory of Open Access Journals: DOAJ Articles NAMMCO Scientific Publications 5 229 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
harbour porpoises by-catch ocular fluid time since death fisheries interactions Ecology QH540-549.5 |
spellingShingle |
harbour porpoises by-catch ocular fluid time since death fisheries interactions Ecology QH540-549.5 C Hood P-Y Daoust J Lien C Richter An experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise ( Phocoena phocoena ) |
topic_facet |
harbour porpoises by-catch ocular fluid time since death fisheries interactions Ecology QH540-549.5 |
description |
Determination of elapsed time since death in small cetaceans can be important to our understanding of the nature of their interactions with fishing operations. This pilot study was conducted to determine the potential diagnostic usefulness of ocular fluid (vitreous humour) and core body temperature to estimate postmortem intervals in harbour porpoises (Phocoena phocoena). Core temperature and concentrations of various constituents of vitreous humour (glucose, urea, sodium, potassium, chloride, magnesium, calcium, and phosphorus) were determined in 24 harbour porpoises incidentally caught in groundfish gillnets in the waters of the Gulf of Maine and the Bay of Fundy. These parameters were compared to published values for rectal temperatures and the serum concentrations of several selected elements in live harbour porpoises. Glucose in vitreous humour decreased in dead animals compared to serum values in live ones; its level was positively correlated with core temperature. Potassium and magnesium in vitreous humour increased following death. These data suggest that most animals analysed had been dead for several hours. For the present, the methodology affords researchers an approach that appears to hold some promise. However, the most practical technique requires testing animals with a known time of death in order to derive a set of curves for ocular fluid values and temperature versus time that are appropriate for a statistical presentation of predictability for the time since death. |
format |
Article in Journal/Newspaper |
author |
C Hood P-Y Daoust J Lien C Richter |
author_facet |
C Hood P-Y Daoust J Lien C Richter |
author_sort |
C Hood |
title |
An experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise ( Phocoena phocoena ) |
title_short |
An experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise ( Phocoena phocoena ) |
title_full |
An experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise ( Phocoena phocoena ) |
title_fullStr |
An experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise ( Phocoena phocoena ) |
title_full_unstemmed |
An experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise ( Phocoena phocoena ) |
title_sort |
experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise ( phocoena phocoena ) |
publisher |
Septentrio Academic Publishing |
publishDate |
2003 |
url |
https://doi.org/10.7557/3.2750 https://doaj.org/article/69788c4bf4f24f34a61470aa10b9e8a7 |
genre |
Harbour porpoise Phocoena phocoena |
genre_facet |
Harbour porpoise Phocoena phocoena |
op_source |
NAMMCO Scientific Publications, Vol 5, Iss 0, Pp 229-241 (2003) |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2750 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2750 https://doaj.org/article/69788c4bf4f24f34a61470aa10b9e8a7 |
op_doi |
https://doi.org/10.7557/3.2750 |
container_title |
NAMMCO Scientific Publications |
container_volume |
5 |
container_start_page |
229 |
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1766023133999923200 |