Adaptations of early development to local spawning temperature in anadromous populations of pike (Esox lucius).

ABSTRACT:

Background

In the wake of climate change many environments will be exposed to increased and more variable temperatures. Knowledge about how species and populations respond to altered temperature regimes is therefore important to improve projections of how ecosystems will be affected by global warming, and to aid management. We conducted a common garden, split-brood temperature gradient (4.5 °C, 9.7 °C and 12.3 °C) experiment to study the effects of temperature in two populations (10 families from each population) of anadromous pike (Esox lucius) that normally experience different temperatures during spawning. Four offspring performance measures (hatching success, day degrees until hatching, fry survival, and fry body length) were compared between populations and among families.

SUBMITTER: Sunde J 

PROVIDER: S-EPMC6647320 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature