Evidence map›Paper›PMID 30966898›Full record

ArticleBiology letters2019

Spawning by the European eel across 2000 km of the Sargasso Sea.

Michael J Miller, Håkan Westerberg, Henrik Sparholt, Klaus Wysujack, Sune R Sørensen, Lasse Marohn, Magnus W Jacobsen, Marko Freese, Daniel J Ayala, Jan-Dag Pohlmann and 7 more

Abstract read
In one paragraph

Article in Biology letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Eels' individual migratory behavior stems from a complex syndrome involving cognition, behavior, physiology, and life history.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Ecological adaptation in European eels is based on phenotypic plasticity.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Review
  12. Article
  13. Article
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Michael J Miller1 Department of Marine Science and Resources, Nihon University , Fujisawa 252-0880 , Japan.
Håkan Westerberg2 Department of Aquatic Resources, Institute of Freshwater Research, Swedish University of Agricultural Sciences , Stångholmsvägen 2, 17893, Drottningholm , Sweden.
Henrik Sparholt3 National Institute of Aquatic Resources, Technical University of Denmark , 2800 Lyngby , Denmark.
Klaus Wysujack4 Thünen Institute of Fisheries Ecology , Herwigstrasse 31, 27572 Bremerhaven , Germany.
Sune R Sørensen3 National Institute of Aquatic Resources, Technical University of Denmark , 2800 Lyngby , Denmark.
Lasse Marohn4 Thünen Institute of Fisheries Ecology , Herwigstrasse 31, 27572 Bremerhaven , Germany.
Magnus W Jacobsen5 National Institute of Aquatic Resources, Technical University of Denmark , 8600 Silkeborg , Denmark.
Marko Freese4 Thünen Institute of Fisheries Ecology , Herwigstrasse 31, 27572 Bremerhaven , Germany.
Daniel J Ayala3 National Institute of Aquatic Resources, Technical University of Denmark , 2800 Lyngby , Denmark.
Jan-Dag Pohlmann4 Thünen Institute of Fisheries Ecology , Herwigstrasse 31, 27572 Bremerhaven , Germany.
Jon C Svendsen3 National Institute of Aquatic Resources, Technical University of Denmark , 2800 Lyngby , Denmark.
Shun Watanabe7 Department of Fisheries, Kindai University , Nara 631-8505 , Japan.
Line Andersen6 Department of Bioscience, Aarhus University , DK-8000 Aarhus C , Denmark.
Peter R Møller8 Natural History Museum of Denmark, University of Copenhagen , 2100 Copenhagen , Denmark.
Katsumi Tsukamoto1 Department of Marine Science and Resources, Nihon University , Fujisawa 252-0880 , Japan.
Peter Munk3 National Institute of Aquatic Resources, Technical University of Denmark , 2800 Lyngby , Denmark.
Reinhold Hanel4 Thünen Institute of Fisheries Ecology , Herwigstrasse 31, 27572 Bremerhaven , Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It has been known for about a century that European eels have a unique life history that includes offshore spawning in the Sargasso Sea about 5000-7000 km away from their juvenile and adult habitats in Europe and northern Africa. Recently hatched eel larvae were historically collected during Danish, German and American surveys in specific areas in the southern Sargasso Sea. During a 31 day period of March and April 2014, Danish and German research ships sampled for European eel larvae along 15 alternating transects of stations across the Sargasso Sea. The collection of recently hatched eel larvae (≤12 mm) from 70° W and eastward to 50° W showed that the European eel had been spawning across a 2000 km wide region of the North Atlantic Ocean. Historical collections made from 1921 to 2007 showed that small larvae had also previously been collected in this wide longitudinal zone, showing that the spatial extent of spawning has not diminished in recent decades, irrespective of the dramatic decline in recruitment. The use of such a wide spawning area may be related to variations in the onset of the silver eel spawning migration, individual differences in their long-term swimming ability, or aspects of larval drift.

Indexed as

AnguillaAnimal MigrationAfrica, NorthernAnimalsAtlantic OceanEuropeAnguilla anguillaleptocephalimigrationocean frontsSargasso Seaspawning area

Identifiers

PMID30966898
PMCPMC6501356

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.