FN Archimer Export Format
PT J
TI Effects of global warming on sex ratios in fishes
BT 
AF Geffroy, Benjamin
   Wedekind, Claus
AS 1:1;2:2;
FF 1:PDG-RBE-MARBEC-LAAAS;2:;
C1 MARBEC, Univ Montpellier, Ifremer, IRD, CNRS Palavas, France
   Department of Ecology and Evolution, Biophore University of Lausanne Lausanne ,Switzerland
C2 IFREMER, FRANCE
   UNIV LAUSANNE, SWITZERLAND
SI PALAVAS
SE PDG-RBE-MARBEC-LAAAS
UM MARBEC
IN WOS Ifremer UMR
   copubli-int-hors-europe
IF 2.051
TC 53
UR https://archimer.ifremer.fr/doc/00633/74519/74347.pdf
LA English
DT Article
DE ;climate change;cortisol;environmental sex reversal;methylation;sex determination;sex-specific mortality
AB In fishes, sex is either determined by genetics, the environment, or an interaction of both. Temperature is among the most important environmental factors that can affect sex determination. As a consequence, changes in temperature at critical developmental stages can induce biases in primary sex ratios in some species. However, early sex ratios can also be biased by sex‐specific tolerances to environmental stresses that may, in some cases, be amplified by changes in water temperature. Sex‐specific reactions to environmental stress have been observed at early larval stages before gonad formation starts. It is therefore necessary to distinguish between temperature effects on sex determination, generally acting through the stress axis or epigenetic mechanisms, and temperature effects on sex‐specific mortality. Both are likely to affect sex ratios and hence population dynamics. Moreover, in cases where temperature effects on sex determination lead to genotype‐phenotype mismatches, long‐term effects on population dynamics are possible. For example, temperature‐induced masculinization potentially leading to the loss of Y chromosomes, or feminization to male‐biased operational sex ratios in future generations. To date, most studies under controlled conditions conclude that if temperature affects sex ratios, elevated temperatures mostly lead to a male bias. The few studies that have been performed on wild populations seem to confirm this general trend. Recent findings suggest that transgenerational plasticity could potentially mitigate the effects of warming on sex ratios in some populations. 
PY 2020
PD SEP
SO Journal Of Fish Biology
SN 0022-1112
PU Wiley
VL 97
IS 3
UT 000552351800001
BP 596
EP 606
DI 10.1111/jfb.14429
ID 74519
ER

EF