Copepods use chemical trails to find sinking marine snow aggregates

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Copepods use chemical trails to find sinking marine snow aggregates. / Lombard, Fabien; Koski, Marja; Kiørboe, Thomas.

In: Limnology and Oceanography, Vol. 58, No. 1, 2013, p. 185-192.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Author

Lombard, Fabien; Koski, Marja; Kiørboe, Thomas / Copepods use chemical trails to find sinking marine snow aggregates.

In: Limnology and Oceanography, Vol. 58, No. 1, 2013, p. 185-192.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{1f7661f885794dd785fddd9aae8850ee,
title = "Copepods use chemical trails to find sinking marine snow aggregates",
publisher = "American Society of Limnology and Oceanography, Inc.",
author = "Fabien Lombard and Marja Koski and Thomas Kiørboe",
year = "2013",
doi = "10.4319/lo.2013.58.1.0185",
volume = "58",
number = "1",
pages = "185--192",
journal = "Limnology and Oceanography",
issn = "0024-3590",

}

RIS

TY - JOUR

T1 - Copepods use chemical trails to find sinking marine snow aggregates

A1 - Lombard,Fabien

A1 - Koski,Marja

A1 - Kiørboe,Thomas

AU - Lombard,Fabien

AU - Koski,Marja

AU - Kiørboe,Thomas

PB - American Society of Limnology and Oceanography, Inc.

PY - 2013

Y1 - 2013

N2 - Copepods are major consumers of sinking marine particles and hence reduce the efficiency of the biological carbon pump. Their high abundance on marine snow suggests that they can detect sinking particles remotely. By means of laboratory observations, we show that the copepod Temora longicornis can detect chemical trails originating from sinking marine snow particles (appendicularian houses). The chemical cue was detected by copepods from a distance of >25 particle radii, with the probability of detection decreasing with distance. The behavior of T. longicornis following the trail resembled the behavior of males tracking pheromone trails, although with a lower tracking velocity. Upon finding a house, the copepod would attach for a short period (10–30 s) and feed intensively. Due to short residence times, daily feeding rates were moderate. Our results demonstrate that even T. longicornis, a species usually considered a microparticle feeder, is able to detect and feed on marine snow aggregates. If similar behaviors are displayed by the more dedicated aggregate-feeding copepods, a topic that remains unexplored, the effect of copepods on vertical flux attenuation may be significant

AB - Copepods are major consumers of sinking marine particles and hence reduce the efficiency of the biological carbon pump. Their high abundance on marine snow suggests that they can detect sinking particles remotely. By means of laboratory observations, we show that the copepod Temora longicornis can detect chemical trails originating from sinking marine snow particles (appendicularian houses). The chemical cue was detected by copepods from a distance of >25 particle radii, with the probability of detection decreasing with distance. The behavior of T. longicornis following the trail resembled the behavior of males tracking pheromone trails, although with a lower tracking velocity. Upon finding a house, the copepod would attach for a short period (10–30 s) and feed intensively. Due to short residence times, daily feeding rates were moderate. Our results demonstrate that even T. longicornis, a species usually considered a microparticle feeder, is able to detect and feed on marine snow aggregates. If similar behaviors are displayed by the more dedicated aggregate-feeding copepods, a topic that remains unexplored, the effect of copepods on vertical flux attenuation may be significant

UR - http://www.aslo.org/lo/toc/index.html

U2 - 10.4319/lo.2013.58.1.0185

DO - 10.4319/lo.2013.58.1.0185

JO - Limnology and Oceanography

JF - Limnology and Oceanography

SN - 0024-3590

IS - 1

VL - 58

SP - 185

EP - 192

ER -