Northern krill, Meganyctiphanes norvegica, come up to see the last eclipse of the millennium?

2002/10/01 by Jarl-Ove Strömberg, John I. Spicer, Bengt Liljebladh +1 · 1 voice · 1 citation
Environmental Science · #Fish Ecology and Management Studies #Marine and fisheries research #Coral and Marine Ecosystems Studies

paper · doi:10.1017/s0025315402006367

openalex publication_date 2002/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11

Abstract

Most krill species undergo diel vertical migration (DVM) which is to some extent influenced by light intensity. During a solar eclipse (11 August 1999) the upward and downward movement of krill, Meganyctiphanes norvegica , inhabiting a Swedish fjord followed closely changes in light intensity. Here the eclipse was partial (77%) and the weather overcast and yet krill at 70–90 m depth were able to detect, and respond to very small changes in light. This observation of an event during mid-day which is not pre-programmed confirms light as an important triggering mechanism for krill DVM.

Cited by

• Two hundred years of zooplankton vertical migration research

Discussions

• Nordic krill also respond to eclipses doi.org/10.1017/S002... [bsky, 1 points, 0 comments]

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