..., Panulirus argus , is a benthic marine invertebrate that possesses a magnetic sense and is likely to encounter magnetic anomalies during migratory movements and homing. As a first step toward investigating whether such anomalies affect the behavior of lobsters, a two-choice preference experiment...

...David A. Ernst; Kenneth J. Lohmann ABSTRACT The Caribbean spiny lobster, Panulirus argus , is a migratory crustacean that uses Earth's magnetic field as a navigational cue, but how these lobsters detect magnetic fields is not known. Magnetic material thought to be magnetite has previously been...

... and expression were studied in the lobster Panulirus argus . Trypsin secretion was shown to be maximal 4 h after ingestion. At this time, fish- and squid-based diets induced trypsin secretion, as well as up-regulation of the major trypsin isoform at the transcription level. While fish- and squid-based diets...

... laser-induced fluorescence to investigate how flicking antennules of different morphologies (long antennules of spiny lobsters, Panulirus argus ; short antennules of blue crabs, Callinectes sapidus ) sample fluctuating odor signals at different positions in a turbulent odor plume in a flume to determine...

... antennule of the spiny lobster, Panulirus argus , as a system to study how the morphology, orientation, and motion of sensilla-bearing appendages affects the small-scale water flow within the hair array. We tested whether antennule flicking enables lobsters to take discrete odor samples by measuring flow...

...Manfred Schmidt; Charles D. Derby SUMMARY In the spiny lobster Panulirus argus the antennules carrying olfactory sensilla called aesthetascs and several types of other non-olfactory sensilla accompanying them are frequently groomed by the third maxillipeds in a stereotyped behavioral pattern...

... lobsters ( Panulirus argus ) rely on a complex chemosensory system that is organized into two parallel chemosensory pathways originating in diverse populations of antennular sensilla and projecting to distinct neuropils within the brain. Chemosensory neurons associated with aesthetasc sensilla project...

...J. A. Goldman; S. N. Patek SUMMARY Most studies of lobster chemoreception have focused on the model systems of Panulirus argus (Palinuridae) and Homarus americanus (Nephropidae). We compare antennule morphology across lobsters and conduct the first kinematic study of antennule flicking...

...Stephen T. Kinsey; Timothy S. Moerland SUMMARY The time- and orientation-dependence of metabolite diffusion in giant muscle fibers of the lobster Panulirus argus was examined using 31 P- and 1 H-pulsed-field gradient nuclear magnetic resonance. The 31 P resonance for arginine phosphate and the 1 H...

... the origin and evolutionary variation of this sound-producing mechanism, I examined joint morphology and antennal muscle anatomy across sound-producing and non-sound-producing palinurids. Plectrum movement and antennal muscle activity were measured in a sound-producing species, Panulirus argus . The promotor...

... this is so for the aesthetasc cuticle of the Caribbean spiny lobster Panulirus argus . We used a chromatographic column packed with aesthetasc cuticle and connected to a flow-through ultraviolet spectrophotometer to measure the elution times of ultraviolet-absorbent molecular mass markers between 165 and 2...

...M. Wachowiak; C. E. Diebel; B. W. Ache ABSTRACT Whole-cell recording coupled with biocytin injection revealed four types of interneurons intrinsic to the olfactory lobe (OL) of the spiny lobster Panulirus argus . Each type of neuron had a distinct pattern of arborization within the three...

...Stephen T. Kinsey; W. Ross Ellington ABSTRACT Proton ( 1 H) and phosphorus ( 31 P) nuclear magnetic resonance (NMR) spectroscopy were used to investigate the mode of transport of L-lactate across the plasma membranes of the abdominal extensor muscles of the spiny lobster Panulirus argus...

...Gabrielle A. Nevitt; N. Dean Pentcheff; Kenneth J. Lohmann; Richard K. Zimmer-Faust ABSTRACT Western Atlantic spiny lobsters ( Panulirus argus ) are superb underwater navigators. Spiny lobsters perform dramatic seasonal offshore migrations and have also been shown to locate and home to specific den...

...Kenneth J. Lohmann; N. Dean Pentcheff; Gabrielle A. Nevitt; George D. Stetten; Richard K. Zimmer-Faust; Hugh E. Jarrard; Larry C. Boles ABSTRACT The western Atlantic spiny lobster Panulirus argus undergoes an annual migration and is also capable of homing to specific dens in its coral reef...