Cited by 19Fish biology, ecology, and behaviorIchthyology and Marine BiologyMarine and fisheries research

The relationship between the moon cycle and the orientation of glass eels ( Anguilla anguilla ) at sea

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Cresci, Alessandro, Durif, Caroline M., Paris, Claire B., Thompson, Cameron R. S., Shema, Steven, Skiftesvik, Anne Berit, Browman, Howard I.·2019·Royal Society Open Science

Abstract

Links between the lunar cycle and the life cycle (migration patterns, locomotor activity, pulses in recruitment) of the European eel ( Anguilla anguilla ) are well documented. In this study, we hypothesized that the orientation of glass eels at sea is related to the lunar cycle. The European eel hatches in the Sargasso Sea and migrates across the Atlantic Ocean towards Europe. Upon reaching the continental shelf, the larvae metamorphose into glass eels and migrate up the estuaries, where some individuals colonize freshwater habitats. How glass eels navigate pelagic waters is still an open question. We tested the orientation of 203 glass eels in a transparent circular arena that was drifting in situ during the daytime, in the coastal Norwegian North Sea, during different lunar phases. The glass eels swimming at sea oriented towards the azimuth of the moon at new moon, when the moon rose above the horizon and was invisible but not during the other moon phases. These results suggest that glass eels could use the moon position for orientation at sea and that the detection mechanism involved is not visual. We hypothesize a possible detection mechanism based on global-scale lunar disturbances in electrical fields and discuss the implications of lunar-related orientation for the recruitment of glass eels to estuaries. This behaviour could help glass eels to reach the European coasts during their marine migration.

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  1. [3]Tesch FW 1977 The eel, 5th edn Oxford, UK: Blackwell Publishing.
  2. [61]Paris CB, Guigand CM, Irisson J, Fisher R 2008 Orientation with No Frame of Reference (OWNFOR): a novel system to observe and quantify orientation in reef fish larvae. In Carribbean Connect. Implic. Mar. Prot. area Manag. NOAA Natl. Mar. Sanctuary Progr., pp. 52– 62.

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Authors
Cresci, A., Durif, C. M., Paris, C. B., Thompson, C. R. S., Shema, S., Skiftesvik, A. B., & Browman, H. I.
Affiliations
  • University of Miami (US)
  • Norwegian Institute of Marine Research (NO)
  • Grótti ehf., Grundarstíg 4, 101 Reykjavík, Iceland
Corresponding author
Cresci, Alessandro
Venue
Royal Society Open Science
Published
2019-10
Volume
6
Issue
10
Pages
190812
ISSN
2054-5703 (ISSN-L)
OpenAlex
W2982419243
Cited by
19
References
61
Citations by year
2025: 2 · 2024: 3 · 2023: 1 · 2022: 2 · 2021: 6 · 2020: 5
FWCI
2.33
Type
journal article
Language
en
Open access
Locations
  • Royal Society Open Science (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • NORA - Norwegian Open Research Archives (submittedVersion, other-oa)
Funders
  • Norges Forskningsråd (234338)
  • Norwegian Institute of Marine Research project “Fine-scale interactions in the plankton” (81529)
  • NSF-OCE (1459156)
  • Paris Lab at the Rosenstiel School of Marine and Atmospheric Science of the University of Miami
Topics
  • Physical Sciences › Environmental Science › Nature and Landscape Conservation › Fish biology, ecology, and behavior
  • Physical Sciences › Environmental Science › Nature and Landscape Conservation › Ichthyology and Marine Biology
  • Physical Sciences › Environmental Science › Global and Planetary Change › Marine and fisheries research
Keywords
Anguilla anguilla, glass eels, lunar cycle, lunar phases, lunar navigation, marine migration, estuarine recruitment, electric field, non-visual navigation, North Sea

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