Embryonic critical windows: changes in incubation temperature alter survival, hatchling phenotype, and cost of development in lake whitefish ( Coregonus clupeaformis )

Verfasser / Beitragende:
[Casey Mueller, John Eme, Richard Manzon, Christopher Somers, Douglas Boreham, Joanna Wilson]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Comparative Physiology B, 185/3(2015-04-01), 315-331
Format:
Artikel (online)
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024 7 0 |a 10.1007/s00360-015-0886-8  |2 doi 
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245 0 0 |a Embryonic critical windows: changes in incubation temperature alter survival, hatchling phenotype, and cost of development in lake whitefish ( Coregonus clupeaformis )  |h [Elektronische Daten]  |c [Casey Mueller, John Eme, Richard Manzon, Christopher Somers, Douglas Boreham, Joanna Wilson] 
520 3 |a The timing, success and energetics of fish embryonic development are strongly influenced by temperature. However, it is unclear if there are developmental periods, or critical windows, when oxygen use, survival and hatchling phenotypic characteristics are particularly influenced by changes in the thermal environment. Therefore, we examined the effects of constant incubation temperature and thermal shifts on survival, hatchling phenotype, and cost of development in lake whitefish (Coregonus clupeaformis) embryos. We incubated whitefish embryos at control temperatures of 2, 5, or 8°C, and shifted embryos across these three temperatures at the end of gastrulation or organogenesis. We assessed hatch timing, mass at hatch, and yolk conversion efficiency (YCE). We determined cost of development, the amount of oxygen required to build a unit of mass, for the periods from fertilization-organogenesis, organogenesis-fin flutter, fin flutter-hatch, and for total development. An increase in incubation temperature decreased time to 50% hatch (164days at 2°C, 104 days at 5°C, and 63 days at 8°C), survival decreased from 55% at 2°C, to 38% at 5°C, and 17% at 8°C, and hatchling yolk-free dry mass decreased from 1.27mg at 2°C to 0.61mg at 8°C. Thermal shifts altered time to 50% hatch and hatchling yolk-free dry mass and revealed a critical window during gastrulation in which a temperature change reduced survival. YCE decreased and cost of development increased with increased incubation temperature, but embryos that hatched at 8°C and were incubated at colder temperatures during fertilization-organogenesis had reduced cost. The relationship between cost of development and temperature was altered during fin flutter-hatch, indicating it may be a critical window during which temperature has the greatest impact on energetic processes. The increase in cost of development with an increase in temperature has not been documented in other fishes and suggests whitefish embryos are more energy efficient at colder temperatures. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Cost of development  |2 nationallicence 
690 7 |a Critical window  |2 nationallicence 
690 7 |a Growth  |2 nationallicence 
690 7 |a Embryonic fish  |2 nationallicence 
690 7 |a Survival  |2 nationallicence 
690 7 |a Temperature  |2 nationallicence 
700 1 |a Mueller  |D Casey  |u Department of Biology, McMaster University, 1280 Main St. West, L8S 4K1, Hamilton, ON, Canada  |4 aut 
700 1 |a Eme  |D John  |u Department of Biology, McMaster University, 1280 Main St. West, L8S 4K1, Hamilton, ON, Canada  |4 aut 
700 1 |a Manzon  |D Richard  |u Department of Biology, University of Regina, Regina, SK, Canada  |4 aut 
700 1 |a Somers  |D Christopher  |u Department of Biology, University of Regina, Regina, SK, Canada  |4 aut 
700 1 |a Boreham  |D Douglas  |u Medical Sciences, Northern Ontario School of Medicine, Laurentian University, Sudbury, ON, Canada  |4 aut 
700 1 |a Wilson  |D Joanna  |u Department of Biology, McMaster University, 1280 Main St. West, L8S 4K1, Hamilton, ON, Canada  |4 aut 
773 0 |t Journal of Comparative Physiology B  |d Springer Berlin Heidelberg  |g 185/3(2015-04-01), 315-331  |x 0174-1578  |q 185:3<315  |1 2015  |2 185  |o 360 
856 4 0 |u https://doi.org/10.1007/s00360-015-0886-8  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00360-015-0886-8  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Mueller  |D Casey  |u Department of Biology, McMaster University, 1280 Main St. West, L8S 4K1, Hamilton, ON, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Eme  |D John  |u Department of Biology, McMaster University, 1280 Main St. West, L8S 4K1, Hamilton, ON, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Manzon  |D Richard  |u Department of Biology, University of Regina, Regina, SK, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Somers  |D Christopher  |u Department of Biology, University of Regina, Regina, SK, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Boreham  |D Douglas  |u Medical Sciences, Northern Ontario School of Medicine, Laurentian University, Sudbury, ON, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wilson  |D Joanna  |u Department of Biology, McMaster University, 1280 Main St. West, L8S 4K1, Hamilton, ON, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Comparative Physiology B  |d Springer Berlin Heidelberg  |g 185/3(2015-04-01), 315-331  |x 0174-1578  |q 185:3<315  |1 2015  |2 185  |o 360