Effects of warm acclimation on serum osmolality, cortisol and hematocrit levels in the Antarctic fish, Trematomus bernacchii
Antarctic fish, such as the Trematomus bernacchii , living at −1.9°C maintain a serum osmolality of around 600 mOsm kg −1 , nearly twice that of temperate fish. Upon warm acclimation, Antarctic fish significantly lower their serum osmolality. It has been suggested that this response to warm acclimat...
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| Veröffentlicht in: | Polar biology 2008-07, Vol.31 (8), p.991-997 |
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| creator | Hudson, H. A. Brauer, P. R. Scofield, M. A. Petzel, D. H. |
| description | Antarctic fish, such as the
Trematomus bernacchii
, living at −1.9°C maintain a serum osmolality of around 600 mOsm kg
−1
, nearly twice that of temperate fish. Upon warm acclimation, Antarctic fish significantly lower their serum osmolality. It has been suggested that this response to warm acclimation is due to stress. The purpose of this study was to determine, whether upon warm acclimation there was a change in the levels of the stress hormone cortisol and hematocrit associated with the decrease in serum osmolality.
T. bernacchii
were warm acclimated up to 4 weeks and serum osmolality, cortisol and hematocrit were measured. Upon warm acclimation to +1.6 and +3.8°C over the course of 4 weeks,
T. bernacchii
significantly lowered their serum osmolality (from 547 ± 4 mOsm kg
−1
to 494 ± 6 and 489 ± 4 mOsm kg
−1
, respectively), yet did not alter their serum cortisol (29 ± 6 nl ml
−1
) or hematocrit (22 ± 1%) levels. These results suggest that warm acclimation does not induce a stress response in
T. bernacchii
. |
| doi_str_mv | 10.1007/s00300-008-0438-8 |
| format | Article |
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Trematomus bernacchii
, living at −1.9°C maintain a serum osmolality of around 600 mOsm kg
−1
, nearly twice that of temperate fish. Upon warm acclimation, Antarctic fish significantly lower their serum osmolality. It has been suggested that this response to warm acclimation is due to stress. The purpose of this study was to determine, whether upon warm acclimation there was a change in the levels of the stress hormone cortisol and hematocrit associated with the decrease in serum osmolality.
T. bernacchii
were warm acclimated up to 4 weeks and serum osmolality, cortisol and hematocrit were measured. Upon warm acclimation to +1.6 and +3.8°C over the course of 4 weeks,
T. bernacchii
significantly lowered their serum osmolality (from 547 ± 4 mOsm kg
−1
to 494 ± 6 and 489 ± 4 mOsm kg
−1
, respectively), yet did not alter their serum cortisol (29 ± 6 nl ml
−1
) or hematocrit (22 ± 1%) levels. These results suggest that warm acclimation does not induce a stress response in
T. bernacchii
.</description><identifier>ISSN: 0722-4060</identifier><identifier>EISSN: 1432-2056</identifier><identifier>DOI: 10.1007/s00300-008-0438-8</identifier><identifier>CODEN: POBIDP</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Acclimatization ; Agnatha. Pisces ; Animal and plant ecology ; Animal, plant and microbial ecology ; Biological and medical sciences ; Biomedical and Life Sciences ; Ecology ; Fish ; Fundamental and applied biological sciences. Psychology ; Hormones ; Life Sciences ; Marine biology ; Microbiology ; Ocean temperature ; Oceanography ; Original Paper ; Osmosis ; Particular ecosystems ; Plant Sciences ; Synecology ; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution ; Zoology</subject><ispartof>Polar biology, 2008-07, Vol.31 (8), p.991-997</ispartof><rights>Springer-Verlag 2008</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c345t-a96fd815dca3bf4be35dd448debda36f94a7cd284c75e4b5818118fb7437bd703</citedby><cites>FETCH-LOGICAL-c345t-a96fd815dca3bf4be35dd448debda36f94a7cd284c75e4b5818118fb7437bd703</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00300-008-0438-8$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00300-008-0438-8$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20435808$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Hudson, H. A.</creatorcontrib><creatorcontrib>Brauer, P. R.</creatorcontrib><creatorcontrib>Scofield, M. A.</creatorcontrib><creatorcontrib>Petzel, D. H.</creatorcontrib><title>Effects of warm acclimation on serum osmolality, cortisol and hematocrit levels in the Antarctic fish, Trematomus bernacchii</title><title>Polar biology</title><addtitle>Polar Biol</addtitle><description>Antarctic fish, such as the
Trematomus bernacchii
, living at −1.9°C maintain a serum osmolality of around 600 mOsm kg
−1
, nearly twice that of temperate fish. Upon warm acclimation, Antarctic fish significantly lower their serum osmolality. It has been suggested that this response to warm acclimation is due to stress. The purpose of this study was to determine, whether upon warm acclimation there was a change in the levels of the stress hormone cortisol and hematocrit associated with the decrease in serum osmolality.
T. bernacchii
were warm acclimated up to 4 weeks and serum osmolality, cortisol and hematocrit were measured. Upon warm acclimation to +1.6 and +3.8°C over the course of 4 weeks,
T. bernacchii
significantly lowered their serum osmolality (from 547 ± 4 mOsm kg
−1
to 494 ± 6 and 489 ± 4 mOsm kg
−1
, respectively), yet did not alter their serum cortisol (29 ± 6 nl ml
−1
) or hematocrit (22 ± 1%) levels. These results suggest that warm acclimation does not induce a stress response in
T. bernacchii
.</description><subject>Acclimatization</subject><subject>Agnatha. Pisces</subject><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Biomedical and Life Sciences</subject><subject>Ecology</subject><subject>Fish</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Hormones</subject><subject>Life Sciences</subject><subject>Marine biology</subject><subject>Microbiology</subject><subject>Ocean temperature</subject><subject>Oceanography</subject><subject>Original Paper</subject><subject>Osmosis</subject><subject>Particular ecosystems</subject><subject>Plant Sciences</subject><subject>Synecology</subject><subject>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><subject>Zoology</subject><issn>0722-4060</issn><issn>1432-2056</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kMtqHDEQRUWwIePHB2QnAtm5ndKjuzVLY8aOwZCNsxZqPTwy6paj0sQY8vHRZEy8ChTUok7dKg4hnxhcMoDxKwIIgA5AdSCF6tQHsmJS8I5DPxyRFYycdxIG-EhOEJ8A2DjI9Yr83oTgbUWaA30xZabG2hRnU2NeaCv0ZTfTjHNOJsX6ekFtLjViTtQsjm59Q7MtsdLkf_mENC60bj29WqoptkZLQ8TtBX0of8l5h3TyZWlXtjGekeNgEvrzt35KftxsHq6_dfffb--ur-47K2RfO7MeglOsd9aIKcjJi945KZXzkzNiCGtpRuu4knbsvZx6xRRjKkyjFOPkRhCn5PMh97nknzuPVT_lXXsioeYMFJesFw1iB8iWjFh80M-liSivmoHeO9YHx7o51nvHWrWdL2_BBq1JoZjFRvy3yBvWK9hz_MBhGy2Pvrw_8P_wPxBNjgs</recordid><startdate>20080701</startdate><enddate>20080701</enddate><creator>Hudson, H. 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A.</au><au>Brauer, P. R.</au><au>Scofield, M. A.</au><au>Petzel, D. H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of warm acclimation on serum osmolality, cortisol and hematocrit levels in the Antarctic fish, Trematomus bernacchii</atitle><jtitle>Polar biology</jtitle><stitle>Polar Biol</stitle><date>2008-07-01</date><risdate>2008</risdate><volume>31</volume><issue>8</issue><spage>991</spage><epage>997</epage><pages>991-997</pages><issn>0722-4060</issn><eissn>1432-2056</eissn><coden>POBIDP</coden><abstract>Antarctic fish, such as the
Trematomus bernacchii
, living at −1.9°C maintain a serum osmolality of around 600 mOsm kg
−1
, nearly twice that of temperate fish. Upon warm acclimation, Antarctic fish significantly lower their serum osmolality. It has been suggested that this response to warm acclimation is due to stress. The purpose of this study was to determine, whether upon warm acclimation there was a change in the levels of the stress hormone cortisol and hematocrit associated with the decrease in serum osmolality.
T. bernacchii
were warm acclimated up to 4 weeks and serum osmolality, cortisol and hematocrit were measured. Upon warm acclimation to +1.6 and +3.8°C over the course of 4 weeks,
T. bernacchii
significantly lowered their serum osmolality (from 547 ± 4 mOsm kg
−1
to 494 ± 6 and 489 ± 4 mOsm kg
−1
, respectively), yet did not alter their serum cortisol (29 ± 6 nl ml
−1
) or hematocrit (22 ± 1%) levels. These results suggest that warm acclimation does not induce a stress response in
T. bernacchii
.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/s00300-008-0438-8</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0722-4060 |
| ispartof | Polar biology, 2008-07, Vol.31 (8), p.991-997 |
| issn | 0722-4060 1432-2056 |
| language | eng |
| recordid | cdi_proquest_journals_210824153 |
| source | Springer Nature - Complete Springer Journals |
| subjects | Acclimatization Agnatha. Pisces Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences Biomedical and Life Sciences Ecology Fish Fundamental and applied biological sciences. Psychology Hormones Life Sciences Marine biology Microbiology Ocean temperature Oceanography Original Paper Osmosis Particular ecosystems Plant Sciences Synecology Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution Zoology |
| title | Effects of warm acclimation on serum osmolality, cortisol and hematocrit levels in the Antarctic fish, Trematomus bernacchii |
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