Food preference studies and ingestion rate measurements of the mangrove amphipod Parhyale hawaiensis (Dana)

Poovachiranon, S., Boto, K. and Duke, N. (1986) Food preference studies and ingestion rate measurements of the mangrove amphipod Parhyale hawaiensis (Dana). Journal of Experimental Marine Biology and Ecology, 98 1-2: 129-140. doi:10.1016/0022-0981(86)90078-X


Author Poovachiranon, S.
Boto, K.
Duke, N.
Title Food preference studies and ingestion rate measurements of the mangrove amphipod Parhyale hawaiensis (Dana)
Formatted title
Food preference studies and ingestion rate measurements of the mangrove amphipod Parhyale hawaiensis (Dana)
Journal name Journal of Experimental Marine Biology and Ecology   Check publisher's open access policy
ISSN 0022-0981
Publication date 1986
Sub-type Article (original research)
DOI 10.1016/0022-0981(86)90078-X
Volume 98
Issue 1-2
Start page 129
End page 140
Total pages 12
Publisher Elsevier B.V.
Language eng
Subject 060205 Marine and Estuarine Ecology (incl. Marine Ichthyology)
050102 Ecosystem Function
050202 Conservation and Biodiversity
Formatted abstract
Large populations, up to 7000 individuals·m−2, of the amphipod Parhyale hawaienis (Dana), not previously reported for Australia, were found in a mangrove forest near Cape Ferguson, northern Australia. The amphipod inhabits accumulations of decomposing Rhizophora stylosa Griff. detritus in the upper littoral zone. Laboratory studies, using measurements of faecal production as an index of feeding rate, showed that the amphipod could consume large quantities of decomposing R. stylosa leaves, with maximum faecal production in the order of 1700 mg·g amphipod−1·day−1 (dry weights), depending on favourable salinity and food source conditions. Feeding rates were not significantly different over the salinity range 15–35%., although significant decreases were noted at further extremes i.e. 10 and 40%.. Short-term (24 h) and long-term (8 wk) food preference and survival studies showed a highly significant increase in food preference with increasing degrees of leaf decomposition. Proximate chemical and physical analyses of different stages of decomposed leaf material showed strong, significant correlations between feeding (defaecation) rate and leaf nitrogen, starch (positive correlations), tannin, crude fibre and toughness (negative correlations). An estimated maximum rate of faecal production in the field of up to 10 g dry matter·m−2·day−1 indicates that this amphipod may be an important component of the mangrove detritus-based food chain in the area studied.
Keyword amphipods
mangroves
litter decomposition
northern Australia
Parhyale hawaiensis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Marine Studies Publications
 
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Created: Mon, 19 Jul 2010, 13:34:26 EST by Laura McTaggart on behalf of Faculty of Science