Elevating the predatory effect: Sensory‐scanning foraging strategy by the lobate ctenophore Mnemiopsis leidyi.

Colin, Sean P., MacPherson, Roshena, Gemmell, Brad, Costello, John H., Sutherland, Kelly and Jaspers, Cornelia (2015) Elevating the predatory effect: Sensory‐scanning foraging strategy by the lobate ctenophore Mnemiopsis leidyi. Open Access Limnology and Oceanography, 60 (1). pp. 100-109. DOI 10.1002/lno.10007.

[img]
Preview
Text
Colin_et_al.pdf - Published Version

Download (758Kb) | Preview

Supplementary data:

Abstract

The influential predatory role of the lobate comb jellyfish Mnemiopsis leidyi has largely been attributed to the generation of a hydrodynamically silent feeding current to entrain and initiate high encounter rates with prey. However, for high encounter rates to translate to high ingestion rates, M. leidyi must effectively capture the entrained prey. To investigate the capture mechanisms, we recorded and quantified, using three-dimensional videography, the outcome of encounter events with slow swimming Artemia prey. The auricles, which produce the feeding current of M. leidyi, were the primary encounter structures, first contacting 59% of the prey in the feeding current. Upon detection, the auricles manipulated the Artemia to initiate captures on the tentillae, which are coated with sticky cells (colloblasts). Using this mechanism of sensory-scanning to capture prey entrained in the feeding current, M. leidyi uses a similar foraging strategy to that of feeding-current foraging copepods. As such, M. leidyi has a higher capture efficiency than do medusae, contributing to the greater predatory effect of M. leidyi in both its endemic and invasive ecosystems.

Document Type: Article
Additional Information: WOS:000349082600009
Keywords: Artemia; Copepoda; Hydroida; Mnemiopsis leidyi; Scyphozoa
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Evolutionary Ecology of Marine Fishes
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1002/lno.10007
ISSN: 0024-3590
Projects: BONUS BIO-C3
Date Deposited: 15 Jan 2015 09:34
Last Modified: 01 Jan 2018 00:38
URI: http://oceanrep.geomar.de/id/eprint/26956

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...