Evidence of diel vertical migration in Mnemiopsis leidyi.

The vertical distribution and migration of plankton organisms may have a large impact on their horizontal dispersal and distribution, and consequently on trophic interactions. In this study we used video-net profiling to describe the fine scale vertical distribution of Mnemiopsis leidyi in the Katte...

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Main Authors: Matilda Haraldsson, Ulf Båmstedt, Peter Tiselius, Josefin Titelman, Dag L Aksnes
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24466162/?tool=EBI
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author Matilda Haraldsson
Ulf Båmstedt
Peter Tiselius
Josefin Titelman
Dag L Aksnes
author_facet Matilda Haraldsson
Ulf Båmstedt
Peter Tiselius
Josefin Titelman
Dag L Aksnes
author_sort Matilda Haraldsson
collection DOAJ
description The vertical distribution and migration of plankton organisms may have a large impact on their horizontal dispersal and distribution, and consequently on trophic interactions. In this study we used video-net profiling to describe the fine scale vertical distribution of Mnemiopsis leidyi in the Kattegat and Baltic Proper. Potential diel vertical migration was also investigated by frequent filming during a 24-hour cycle at two contrasting locations with respect to salinity stratification. The video profiles revealed a pronounced diel vertical migration at one of the locations. However, only the small and medium size classes migrated, on average 0.85 m h(-1), corresponding to a total migration distance of 10 m during 12 h. Larger individuals (with well developed lobes, approx. >27 mm) stay on average in the same depth interval at all times. Biophysical data suggest that migrating individuals likely responded to light, and avoided irradiance levels higher than approx. 10 µmol quanta m(-2) s(-1). We suggest that strong stratification caused by low surface salinity seemed to prohibit vertical migration.
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spelling doaj.art-50221696105c4e579f9bffddda24054f2022-12-21T23:17:02ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0191e8659510.1371/journal.pone.0086595Evidence of diel vertical migration in Mnemiopsis leidyi.Matilda HaraldssonUlf BåmstedtPeter TiseliusJosefin TitelmanDag L AksnesThe vertical distribution and migration of plankton organisms may have a large impact on their horizontal dispersal and distribution, and consequently on trophic interactions. In this study we used video-net profiling to describe the fine scale vertical distribution of Mnemiopsis leidyi in the Kattegat and Baltic Proper. Potential diel vertical migration was also investigated by frequent filming during a 24-hour cycle at two contrasting locations with respect to salinity stratification. The video profiles revealed a pronounced diel vertical migration at one of the locations. However, only the small and medium size classes migrated, on average 0.85 m h(-1), corresponding to a total migration distance of 10 m during 12 h. Larger individuals (with well developed lobes, approx. >27 mm) stay on average in the same depth interval at all times. Biophysical data suggest that migrating individuals likely responded to light, and avoided irradiance levels higher than approx. 10 µmol quanta m(-2) s(-1). We suggest that strong stratification caused by low surface salinity seemed to prohibit vertical migration.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24466162/?tool=EBI
spellingShingle Matilda Haraldsson
Ulf Båmstedt
Peter Tiselius
Josefin Titelman
Dag L Aksnes
Evidence of diel vertical migration in Mnemiopsis leidyi.
PLoS ONE
title Evidence of diel vertical migration in Mnemiopsis leidyi.
title_full Evidence of diel vertical migration in Mnemiopsis leidyi.
title_fullStr Evidence of diel vertical migration in Mnemiopsis leidyi.
title_full_unstemmed Evidence of diel vertical migration in Mnemiopsis leidyi.
title_short Evidence of diel vertical migration in Mnemiopsis leidyi.
title_sort evidence of diel vertical migration in mnemiopsis leidyi
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24466162/?tool=EBI
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