Habitat suitability index Model for neon flying squid adding its stock effect

Igarashi, Hiromichi; Ishikawa, Yoichi; Nishikawa, Haruka; Usui, Norihisa; Sakai, Mitsuo; Saitoh, Sei–Ichi; Imamura, Yutaka

doi:10.1109/techno-ocean.2016.7890696

Cited by 2 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While there are quite a vast number of studies looking at the patterns of suitable habitats for neon flying squid using the species distribution modeling approach [22,[43][44][45], the framework of analyses implemented in the present study provided both qualitative and quantitative means of elucidating the effects of the dominant modes of climatic variability in the North Pacific Ocean at a decadal time-scale. Our results underpinned the differences in the temporal trends for suitable squid habitat across climatic transitions and, more importantly, afforded a quantitative estimate of the spatial changes in the squid habitat suitability over time.…”

Section: Discussionmentioning

confidence: 99%

Spatial Habitat Shifts of Oceanic Cephalopod (Ommastrephes bartramii) in Oscillating Climate

et al. 2020

Self Cite

View full text Add to dashboard Cite

Short- and long-term climate oscillations impact seascapes, and hence, marine ecosystem structure and dynamics. Here, we explored the spatio-temporal patterns of potential squid habitat in the western and central North Pacific across inter-decadal climate transitions, coincident with periods of persistent warming and cooling. Potential habitat distributions of Ommastrephes bartramii were derived from the outputs of multi-ensemble species distribution models, developed using the most influential environmental factors to squid distribution and occurrence data. Our analyses captured the underlying temporal trends in potential squid habitat in response to environmental changes transpiring at each climatic transition, regulated by phase shifts in Pacific decadal oscillation (PDO) from 1999–2013. The spatial differences in environmental conditions were apparent across transitions and presumably modulate the local changes in suitable squid habitat over time. Specifically, during a cold to warm PDO shift, decreases in the summer potential habitat (mean rate ± standard deviation: −0.04 ± 0.02 habitat suitability index (HSI)/yr) were observed along the southern edge of the subarctic frontal zone (162°E–172°W). Coincidentally, this area also exhibits a warming trend (mean temporal trend: 0.06 ± 0.21 °C/yr), accompanied with the prevalence of cold-core mesoscale eddies, west of the dateline (mean temporal trend in sea surface height: −0.19 ± 1.05 cm/yr). These conditions potentially generate less favorable foraging habitat for squid. However, a warm-to-cold PDO transition underpins a northward shift of suitable habitat and an eastward shift of regions exhibiting the highest rate of potential squid habitat loss (170–160°W; mean temporal trend: −0.05 ± 0.03 HSI/yr). Nonetheless, the emergence of the areas with increasingly suitable habitat regardless of climate transitions suggests the ecological importance of these regions as potential squid habitat hotspots and climatic refugia.

show abstract

Section: Discussionmentioning

confidence: 99%