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Sainz-Trápaga, Susana; Sugimoto, Takashige

doi:10.1023/a:1011166625375

Cited by 11 publications

(2 citation statements)

References 26 publications

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“…Furthermore, when fish have low swimming ability but need to move north, they require strong northward cross-jet currents. In the Kuroshio Extension (KE), a cross-frontal northward current is frequently observed between the trough and the crest of the meander (Sainz-Trápaga & Sugimoto, 2000), as is the case of the Gulf Stream (Bower & Rossby, 1989).…”

Section: Discussionmentioning

confidence: 99%

“…Warm streamers are also spread intermittently from the KE (Sainz-Trápaga & Sugimoto, 2000) and quasi-stationary jets extend northeastward in the transitional area between the KE and the Oyashio fronts (Isoguchi, Kawamura, & Oka, 2006), probably providing conditions for longitudinal selection. Although these processes seem unique for the KE, similar processes may occur in other regions as many fish larvae depend on regional flows, such as the coastal jets in the Benguela Current (Hutchings et al, 2002) or the eddies in the California Current (Logerwell, Lavaniegos, & Smith, 2001), to effectively reach food-rich feeding grounds.…”

Section: Discussionmentioning

confidence: 99%

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Combining microvolume isotope analysis and numerical simulation to reproduce fish migration history

et al. 2018

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Tracking the movement of migratory fish is of great importance for efficient conservation, although this has been technically difficult to achieve in small fish to which artificial tags cannot be attached. We show that migration history can be reproduced by combining high‐resolution otolith stable oxygen isotope ratio (δ18O) analysis and numerical simulation. High‐precision micromilling and microvolume carbonate analysing systems had the remarkable capability of extracting the otolith δ18O profiles with 10–30 days resolution. Furthermore, reasonable movements were reproduced by searching the routes consistent with the otolith δ18O profile, using an individual‐based model with random swimming behaviour. This method will be a valuable alternative to tagging and electronic loggers for revealing migration routes in early life stages, thereby providing crucial information to understand population structures and the environmental cause of recruitment variabilities, and to validate and improve fish movement models.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Combining microvolume isotope analysis and numerical simulation to reproduce fish migration history

et al. 2018

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Upper-ocean thermal variability controlled by ocean dynamics in the Kuroshio-Oyashio Extension region

Pak

Park

Vivier

et al. 2017

J. Geophys. Res. Oceans

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To understand the upper‐ocean thermal variability in the Kuroshio−Oyashio Extension (KOE) region, the upper 400 m heat budget in the western North Pacific is analyzed for the 1981 − 2013 period using outputs from a high resolution (1/12°) ocean general circulation model. Winter heat storage rate on interannual to decadal time scales is mainly determined by oceanic heat advection rather than by net air‐sea heat flux. The role of heat advection becomes particularly prominent and widely spread over the entire western North Pacific after the 1990 regime shift in association with the reduced variability of surface heat flux caused by weakened SST variability. The net heat flux acts to dampen temperature anomalies caused by the ocean dynamics. The ocean dynamics causing the upper‐ocean heat storage rate is principally associated with the meridional shift of the Oyashio Extension front, which is significantly correlated with both the West Pacific and Pacific‐North America teleconnection patterns.

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