The impact of waterborne cues from conspecifics and other species on the larvae of Halichondria panacea Pallas, 1766 (Porifera: Demospongiae)

The impact of waterborne cues from conspecifics and other species on the larvae of Halichondria... The impacts of different concentrations of the excretory-secretory products (ESPs) of the solitary ascidian Styela rustica (Linnaeus, 1767) and the sponge Halichondria panacea (Pallas, 1766) on the settlement, metamorphosis, and mortality rates of H. panacea larvae were studied in a laboratory experiment. At high concentrations, substances released into the environment by the ascidian S. rustica exerted a negative impact on the metamorphosis rate of sponge larvae. The exposure to moderate or high concentrations of ESPs from conspecific adults led to high mortality of larval sponges; however, low conspecific ESP concentrations markedly stimulated metamorphosis; larval mortality was low. Apparently, different concentrations of the same ESPs can have effects with a different strength and focus. This should be taken into account in the study of chemically mediated interactions between aquatic organisms. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

The impact of waterborne cues from conspecifics and other species on the larvae of Halichondria panacea Pallas, 1766 (Porifera: Demospongiae)

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Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1134/S1063074014010064
Publisher site
See Article on Publisher Site

Abstract

The impacts of different concentrations of the excretory-secretory products (ESPs) of the solitary ascidian Styela rustica (Linnaeus, 1767) and the sponge Halichondria panacea (Pallas, 1766) on the settlement, metamorphosis, and mortality rates of H. panacea larvae were studied in a laboratory experiment. At high concentrations, substances released into the environment by the ascidian S. rustica exerted a negative impact on the metamorphosis rate of sponge larvae. The exposure to moderate or high concentrations of ESPs from conspecific adults led to high mortality of larval sponges; however, low conspecific ESP concentrations markedly stimulated metamorphosis; larval mortality was low. Apparently, different concentrations of the same ESPs can have effects with a different strength and focus. This should be taken into account in the study of chemically mediated interactions between aquatic organisms.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Apr 5, 2014

References

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