Functional mouthpart morphology of the squat lobster Munida sarsi, with comparison to other anomurans
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Functional mouthpart morphology of the squat lobster Munida sarsi, with comparison to other anomurans. / Garm, Anders Lydik; Høeg, Jens Thorvald.
In: Marine Biology, Vol. 137, No. 1, 2000, p. 123-138.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Functional mouthpart morphology of the squat lobster Munida sarsi, with comparison to other anomurans
AU - Garm, Anders Lydik
AU - Høeg, Jens Thorvald
N1 - Paper id:: 350GR
PY - 2000
Y1 - 2000
N2 - The mouthparts of Munida sarsi Huus, 1935, including the labrum and paragnaths, are described using LM and SEM, with special attention to the setal composition and its function. We also used high-resolution macrovideo equipment to record the feeding processes and monitor setae in action. This combination of morphological and preliminary behavioral data enabled us to arrive at a more comprehensive understanding of the functional morphology. M. sarsi was found to be an opportunist and capable of handling and eating most kinds of animal tissue. The species can also be a selective deposit feeder, sorting the sediment by quality and not by size. This sorting is performed by the setae on the medial rim of the bases of maxilla 1, maxilla 2 and maxilliped 1. Many of the other mouthpart functions ranging from food detection to ingestion are mapped with comparison to what has been found for other anomurans. Grooming was shown to be a significant function of many mouthparts: especially the endopod of maxilliped 3. In general the mouthparts closest to the mouth have the least complex movements and functional scheme, with the mandibles being able to perform only one movement, i.e. cutting or crunching food objects. Some functions are attributed to the paragnath, the endopod of maxilla 2 and the epipod of maxilliped 1.
AB - The mouthparts of Munida sarsi Huus, 1935, including the labrum and paragnaths, are described using LM and SEM, with special attention to the setal composition and its function. We also used high-resolution macrovideo equipment to record the feeding processes and monitor setae in action. This combination of morphological and preliminary behavioral data enabled us to arrive at a more comprehensive understanding of the functional morphology. M. sarsi was found to be an opportunist and capable of handling and eating most kinds of animal tissue. The species can also be a selective deposit feeder, sorting the sediment by quality and not by size. This sorting is performed by the setae on the medial rim of the bases of maxilla 1, maxilla 2 and maxilliped 1. Many of the other mouthpart functions ranging from food detection to ingestion are mapped with comparison to what has been found for other anomurans. Grooming was shown to be a significant function of many mouthparts: especially the endopod of maxilliped 3. In general the mouthparts closest to the mouth have the least complex movements and functional scheme, with the mandibles being able to perform only one movement, i.e. cutting or crunching food objects. Some functions are attributed to the paragnath, the endopod of maxilla 2 and the epipod of maxilliped 1.
U2 - 10.1007/s002270000318
DO - 10.1007/s002270000318
M3 - Journal article
VL - 137
SP - 123
EP - 138
JO - Marine Biology
JF - Marine Biology
SN - 0025-3162
IS - 1
ER -
ID: 10141541