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| Autori principali: | , , , , , , , , , , , , , , |
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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Journal of plankton research
2025
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| Accesso online: | https://pubmed.ncbi.nlm.nih.gov/40584570/ |
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Sommario:
- Meta-analysis of stage-specific vertical distribution in relation to hydrography and chlorophyll in the North Atlantic. Chamorro, Eva Bandara, Kanchana Balazy, Kaja Broms, Cecilie Daase, Malin Gaard, Eilif Häfker, N Sören Irigoien, Xabier Kwasniewski, Slawomir Lindegren, Martin Mosbech, Anders Meyer, Bettina Petursdottir, Hildur Trudnowska, Emilia Basedow, Sünnje L is an important, extensively studied zooplankton species in the North Atlantic. Many studies have explored its abundance and life cycle, but basin-wide relationships between its vertical distribution and environment during the feeding season remain poorly known. We conducted a meta-analysis of stage-specific vertical distribution and its relationships with environmental variables (temperature, salinity, irradiance, chlorophyll-) in the epipelagic layer (0-200 m) of the North Atlantic during spring and summer (21 March to 21 September). Fitting a GAM model, we analyzed data from 47 years (1971-2018) with the aim to discern common, stage-specific responses to environment across the area. Highest abundances were observed in the upper 50 m in spring (at 5°C) and summer (at 7.5°C). The timing of the phytoplankton bloom emerged as a key driver determining vertical distribution, with all stages found shallower during the seasonal surface Chl.- maximum. Contrary to reports of mismatch with global warming, the data indicated a region-wide match of spring bloom and . In the coldest areas of its habitat (< 1°C), the copepods stayed closer to surface, potentially to fulfill development, while in warmest areas (>10°C), early stages stayed deeper likely to avoid warm surface waters.