Salinity effects on osmoregulation and gill morphology in juvenile Persian sturgeon (Acipenser persicus).
Identifieur interne : 000717 ( Ncbi/Curation ); précédent : 000716; suivant : 000718Salinity effects on osmoregulation and gill morphology in juvenile Persian sturgeon (Acipenser persicus).
Auteurs : Seyedeh Ainaz Shirangi [Iran] ; Mohammad Reza Kalbassi [Iran] ; Saber Khodabandeh [Iran] ; Hojatollah Jafarian [Iran] ; Catherine Lorin-Nebel [France] ; Emilie Farcy [France] ; Jehan-Hervé Lignot [France]Source :
- Fish physiology and biochemistry [ 1573-5168 ] ; 2016.
Abstract
The effect of abrupt and 5-day gradual salinity transfers from freshwater (FW) to 11 ‰ Caspian Sea brackish water (BW) was investigated in juvenile Persian sturgeon Acipenser persicus with three different weight groups: 1-2 g (1.62 ± 0.27 g), 2-3 g (2.55 ± 0.41 g) and 3-5 g (4.28 ± 0.76 g). Mortality rates, blood osmotic pressure, gill morphology and branchial Na(+), K(+)-ATPase (NKA) activity were measured 4 and 10 days after abrupt transfer and 9 and 15 days after the initial gradual transfer (i.e. 4 and 10 days after reaching Caspian Sea salinity). Fish under 3 g could not survive increased salinity, and the blood osmotic pressure of the remaining surviving fish increased and remained elevated. However, heavier fish were able to survive and successfully acclimate, even to rapid salinity change with osmotic pressure reduced to Caspian Sea osmolality levels. At the gill level, the developmental increase in chloride cell volume and a higher NKA content most probably allow juveniles weighing more than 2 g to sharply increase NKA activity if the fish are transferred to BW. The rapid chloride cell proliferation occurring with increased salinity should strengthen this acclimation response. Therefore, a drastic physiological change occurs when fish weigh more than 2 g that allows migration to higher salinities. The triggering signal on chloride cells must be further investigated in order to optimize this functional step.
DOI: 10.1007/s10695-016-0254-y
PubMed: 27341821
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Montpellier - CNRS), University of Montpellier, Place Eugène Bataillon, 34095, Montpellier Cedex 5, France. jehan-herve.lignot@univ-montp2.fr.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR MARBEC, MARBEC (IRD - Ifremer - Univ. 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Box 46414-356, Noor, Iran.</nlm:affiliation><country xml:lang="fr">Iran</country><wicri:regionArea>Faculty of Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356, Noor</wicri:regionArea><wicri:noRegion>Noor</wicri:noRegion></affiliation></author><author><name sortKey="Kalbassi, Mohammad Reza" sort="Kalbassi, Mohammad Reza" uniqKey="Kalbassi M" first="Mohammad Reza" last="Kalbassi">Mohammad Reza Kalbassi</name><affiliation wicri:level="1"><nlm:affiliation>Faculty of Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356, Noor, Iran. kalbassi_m@modares.ac.ir.</nlm:affiliation><country xml:lang="fr">Iran</country><wicri:regionArea>Faculty of Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356, Noor</wicri:regionArea><wicri:noRegion>Noor</wicri:noRegion></affiliation></author><author><name sortKey="Khodabandeh, Saber" sort="Khodabandeh, Saber" uniqKey="Khodabandeh S" first="Saber" last="Khodabandeh">Saber Khodabandeh</name><affiliation wicri:level="1"><nlm:affiliation>Faculty of Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356, Noor, Iran.</nlm:affiliation><country xml:lang="fr">Iran</country><wicri:regionArea>Faculty of Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356, Noor</wicri:regionArea><wicri:noRegion>Noor</wicri:noRegion></affiliation></author><author><name sortKey="Jafarian, Hojatollah" sort="Jafarian, Hojatollah" uniqKey="Jafarian H" first="Hojatollah" last="Jafarian">Hojatollah Jafarian</name><affiliation wicri:level="1"><nlm:affiliation>Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad, Iran.</nlm:affiliation><country xml:lang="fr">Iran</country><wicri:regionArea>Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad</wicri:regionArea><wicri:noRegion>Gonbad</wicri:noRegion></affiliation></author><author><name sortKey="Lorin Nebel, Catherine" sort="Lorin Nebel, Catherine" uniqKey="Lorin Nebel C" first="Catherine" last="Lorin-Nebel">Catherine Lorin-Nebel</name><affiliation wicri:level="3"><nlm:affiliation>UMR MARBEC, MARBEC (IRD - Ifremer - Univ. Montpellier - CNRS), University of Montpellier, Place Eugène Bataillon, 34095, Montpellier Cedex 5, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR MARBEC, MARBEC (IRD - Ifremer - Univ. Montpellier - CNRS), University of Montpellier, Place Eugène Bataillon, 34095, Montpellier Cedex 5</wicri:regionArea><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Farcy, Emilie" sort="Farcy, Emilie" uniqKey="Farcy E" first="Emilie" last="Farcy">Emilie Farcy</name><affiliation wicri:level="3"><nlm:affiliation>UMR MARBEC, MARBEC (IRD - Ifremer - Univ. Montpellier - CNRS), University of Montpellier, Place Eugène Bataillon, 34095, Montpellier Cedex 5, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR MARBEC, MARBEC (IRD - Ifremer - Univ. Montpellier - CNRS), University of Montpellier, Place Eugène Bataillon, 34095, Montpellier Cedex 5</wicri:regionArea><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Lignot, Jehan Herve" sort="Lignot, Jehan Herve" uniqKey="Lignot J" first="Jehan-Hervé" last="Lignot">Jehan-Hervé Lignot</name><affiliation wicri:level="3"><nlm:affiliation>UMR MARBEC, MARBEC (IRD - Ifremer - Univ. Montpellier - CNRS), University of Montpellier, Place Eugène Bataillon, 34095, Montpellier Cedex 5, France. jehan-herve.lignot@univ-montp2.fr.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>UMR MARBEC, MARBEC (IRD - Ifremer - Univ. Montpellier - CNRS), University of Montpellier, Place Eugène Bataillon, 34095, Montpellier Cedex 5</wicri:regionArea><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author></analytic><series><title level="j">Fish physiology and biochemistry</title><idno type="eISSN">1573-5168</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effect of abrupt and 5-day gradual salinity transfers from freshwater (FW) to 11 ‰ Caspian Sea brackish water (BW) was investigated in juvenile Persian sturgeon Acipenser persicus with three different weight groups: 1-2 g (1.62 ± 0.27 g), 2-3 g (2.55 ± 0.41 g) and 3-5 g (4.28 ± 0.76 g). Mortality rates, blood osmotic pressure, gill morphology and branchial Na(+), K(+)-ATPase (NKA) activity were measured 4 and 10 days after abrupt transfer and 9 and 15 days after the initial gradual transfer (i.e. 4 and 10 days after reaching Caspian Sea salinity). Fish under 3 g could not survive increased salinity, and the blood osmotic pressure of the remaining surviving fish increased and remained elevated. However, heavier fish were able to survive and successfully acclimate, even to rapid salinity change with osmotic pressure reduced to Caspian Sea osmolality levels. At the gill level, the developmental increase in chloride cell volume and a higher NKA content most probably allow juveniles weighing more than 2 g to sharply increase NKA activity if the fish are transferred to BW. The rapid chloride cell proliferation occurring with increased salinity should strengthen this acclimation response. Therefore, a drastic physiological change occurs when fish weigh more than 2 g that allows migration to higher salinities. The triggering signal on chloride cells must be further investigated in order to optimize this functional step.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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