swimmeret

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swimmeret

(swĭm′ə-rĕt′, swĭm′ə-rĕt′)
n.
One of the paired abdominal appendages of many aquatic crustaceans, such as shrimp and lobsters, that are used for swimming and in females for carrying eggs. Also called pleopod.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

swimmeret

any of the small paired appendages on the abdomen of crustaceans, used for locomotion or reproduction.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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References in periodicals archive ?
First pleopod without well-developed divergent mesial projection, instead blunt and blade-shaped, as described in Diagnosis.
The growth of pleopod length was positive allometric (b = 1.28) in immature crabs as compared to mature male crabs (Fig.
Eggs were removed from the pleopods. A total egg mass weight was determined by weighing the entire egg mass to the nearest 0.001 g using an analytical balance.
The oar-like pleopodal pumping system of Corophium volutator has features in common with a mechanical reciprocating positive-displacement piston pump and may be further categorized as "compound," since more than one pump unit is involved, and "single-acting," since water is pumped during only half of the beat cycle of a pleopod (Wilson, 1950; Brown, 1975, 1977).
Male cheliped length and pleopod length and female abdomen width experienced substantial shifts in growth rate during ontogeny.
We slide-mounted antenna, male pleopods one and two, and male peraeopod seven in glycerin for microscopic examination.
Pleopod tissue from each shrimp was preserved in 80 % ethanol, until DNA extraction
The activity of [Na.sup.+]/[K.sup.+] ATPase enzyme, which is strongly implicated in sodium transport, has been measured in the pleopod gills of isopod Idotea wosnesenskii, acclimated to different media, suggesting their role in inward ionic transport from dilute media (Holliday 1988).
Relative pleopod length as an indicator of size at sexual maturity in slipper (Scyllarides squammosus) and spiny Hawaiian (Palinurus marginatus) lobsters.
Abnormal abdomen shape and abnormal pleopod of three male crabs, Callinectes ornatus, have been reported by Mantelatto et al.
Remarks: The secondary male differs substantially from the primary male, not just in respect of the typical characters of size and cheliped development, but also as regards the antennule structure, and pleopod setal number (higher in secondary male).