Estuarine caridean shrimp (Palaemon debilis Dana, 1852) (Decapoda: Caridea) can differentiate olfactory cues from different mangrove species for microhabitat selection

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Natin, P
Lee, SY
Year published
2018
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Environmental cues in mangroves such as chemicals released from senescent leaf litter could help guide juvenile nekton to their nursery habitats. A laboratory olfactory choice experiment was conducted using a three-channel choice flume to assess the ability of juveniles of the caridean shrimp Palaemon debilisDana (1852) to distinguish between water containing leachates from the leaf litter of the mangroves Avicennia marina (Forsk.) Vierh., Rhizophora stylosa Griff. and a mixture of the two species. Senescent leaves of these species of mangroves were soaked for 14 days in artificial seawater before being exposed to juvenile ...
View more >Environmental cues in mangroves such as chemicals released from senescent leaf litter could help guide juvenile nekton to their nursery habitats. A laboratory olfactory choice experiment was conducted using a three-channel choice flume to assess the ability of juveniles of the caridean shrimp Palaemon debilisDana (1852) to distinguish between water containing leachates from the leaf litter of the mangroves Avicennia marina (Forsk.) Vierh., Rhizophora stylosa Griff. and a mixture of the two species. Senescent leaves of these species of mangroves were soaked for 14 days in artificial seawater before being exposed to juvenile P. debilis in the flume. P. debilis spent significantly more time in R. stylosa water, followed by mixed R. stylosa and A. marina water, and least time in A. marina water. The consistent preference for R. stylosa water suggests that the chemical cues from senescent leaves of this mangrove species might influence choice selection by the shrimp. The olfactory choice experiment was further investigated to assess if the preference for senescent R. stylosa leachate (water) was due to the water-borne chemicals (either from the senescent R. stylosa leaf litter water or aged R. stylosa detritus) serving as an attractant to the shrimps, by comparing it to aged R. stylosa detritus and artificial seawater. Juvenile shrimp preferred senescent R. stylosa water, therefore suggesting a role of chemical attractants in the shrimp's choice of habitat.
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View more >Environmental cues in mangroves such as chemicals released from senescent leaf litter could help guide juvenile nekton to their nursery habitats. A laboratory olfactory choice experiment was conducted using a three-channel choice flume to assess the ability of juveniles of the caridean shrimp Palaemon debilisDana (1852) to distinguish between water containing leachates from the leaf litter of the mangroves Avicennia marina (Forsk.) Vierh., Rhizophora stylosa Griff. and a mixture of the two species. Senescent leaves of these species of mangroves were soaked for 14 days in artificial seawater before being exposed to juvenile P. debilis in the flume. P. debilis spent significantly more time in R. stylosa water, followed by mixed R. stylosa and A. marina water, and least time in A. marina water. The consistent preference for R. stylosa water suggests that the chemical cues from senescent leaves of this mangrove species might influence choice selection by the shrimp. The olfactory choice experiment was further investigated to assess if the preference for senescent R. stylosa leachate (water) was due to the water-borne chemicals (either from the senescent R. stylosa leaf litter water or aged R. stylosa detritus) serving as an attractant to the shrimps, by comparing it to aged R. stylosa detritus and artificial seawater. Juvenile shrimp preferred senescent R. stylosa water, therefore suggesting a role of chemical attractants in the shrimp's choice of habitat.
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Journal Title
Journal of Experimental Marine Biology and Ecology
Volume
501
Copyright Statement
© 2018 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
Subject
Environmental sciences
Other environmental sciences not elsewhere classified
Biological sciences
Zoology