Using high-resolution stable isotope and microstructure analyses of otoliths, this study reveals that sardine populations in the western and eastern North Pacific have different early life metabolic and growth rates that respond contrastingly to temperature variations. These findings could explain observations of different responses in these populations to decadal-scale temperature anomalies.
- Tatsuya Sakamoto
- Motomitsu Takahashi
- Tomihiko Higuchi
