Results 211 to 220 of about 38,318 (259)

Swimming of the pea crab (Pinnotheres pisum)

Animal Biology, 2014
Aquatic organisms have to deal with different hydrodynamic regimes, depending on their size and speed during locomotion. The pea crab swims by beating the third and fourth pereiopod on opposite sides as pairs. Using particle tracking velocimetry and high-speed video recording, we quantify the kinematics and vortices in the wake of the pea crab.
Versteegh, C.P.C., Muller, M.
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Motoneuronal commands during swimming behaviour in the shore crab

Brain Research, 1990
Neurograms of proximal leg motor nerves were obtained during swimming in the shore crab. Whereas excitor motoneurones fire in bursts, the common inhibitor motoneurone discharges tonically with simultaneous spikes in all the motor nerves. The average firing frequency of the common inhibitor increases as the period of the swimming cycle decreases ...
M, Bévengut, F, Clarac
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Why “swimming crabs” are able to swim – The importance of the axial skeleton: A comparison between the “swimming crab” Liocarcinus depurator and two other brachyuran crabs (Cancer pagurus, Carcinus maenas) using μCT and 3D-reconstruction

Arthropod Structure & Development, 2020
Most brachyuran crabs use their pereiopods as walking legs, but there are also a number of species, in which the last (5th) pair of pereiopods (P5) are specialized to permit a unique mode of swimming. One of these P5-swimming crabs is Liocarcinus depurator, commonly found on European shores.
Dennis, Hazerli, Stefan, Richter
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Polarised light-sensitive interneurones in a swimming crab

Nature, 1976
THIS report shows that there are polarisation-sensitive inter-neurones in the crab visual system, contrary to recent speculations1. It also shows that polarised light information in crabs is elaborately processed.
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Characterization of PHB in the gonadal development of the swimming crab Portunus trituberculatus

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2020
Prohibitin (PHB) is an evolutionarily conserved multifunctional protein with ubiquitous expression. In this study, we cloned the PHB gene from the testis of the swimming crab Portunus trituberculatus (PtPHB) and analyzed the deduced amino acid sequence. The expression level of phb mRNA in larvae was analyzed using qRT-PCR.
Xueni, Qiu, Hua, Yang, Zhiming, Ren, Shengming, Han, Changkao, Mu, Ronghua, Li, Yangfang, Ye, Weiwei, Song, Ce, Shi, Lei, Liu, Huan, Wang, Chunlin, Wang   +11 more
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Behavioural and physiological studies of aggression in swimming crabs

Journal of Experimental Marine Biology and Ecology, 1995
Abstract This article reviews three studies of agonistic interactions in pairs of swimming crabs (Liocarcinus depurator and Necora puber) in which behavioural and physiological approaches were combined. In both species most fights were won by the larger crab.
F.A. Huntingford, A.C. Taylor, I.P. Smith, K.E. Thorpe   +3 more
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Ribosomal DNA Intergenic Spacer of the Swimming Crab, Charybdis japonica

Journal of Molecular Evolution, 1999
We have determined the full sequence of the ribosomal DNA intergenic spacer (IGS) of the swimming crab, Charybdis japonica, by long PCR for the first time in crustacean decapods. The IGS is 5376 bp long and contains two nonrepetitive regions separated by one long repetitive region, which is composed mainly of four subrepeats (subrepeats I, II, III, and
Ryu, SH, Do, Yoonkyung, Hwang, UW, Choe, CP, Kim, W   +4 more
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Swimming in the dromiid crab (Homola barbata)

Animal Behaviour, 1970
Abstract Swimming was observed in specimens of the dromiid crab Homola barbota collected at Naples, and the swimming technique was studied by the analysis of cine film. The first, second and third walking legs beat in the frontal plane of the crab. The duration of the backward propulsive stroke is the same as that of the forward recovery stroke.
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Swimming in Spider Crabs of the Genus Macropodia

Nature, 1960
THE only adult Brachyura which have previously been recorded swimming are the Portunidae, which do so by rapid paddling of the last pair of peraeopods. These are adapted for swimming by having the distal segments flattened, with the edges densely fringed with hairs.
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Bait Improvement For Swimming Crab Trap Fisheries

2011
One of the most commonly cited problems regarding age determination in crustaceans is the absence of any calcified structures containing growth rings. The question addressed by this study is: do the zygocardic, prepyloric and pyloric ossicles of the gastric mill of decapod crustaceans contain any record of growth?
Miguel Vazquez Archdale, Gunzo Kawamura, Kazuhiko Anraku   +2 more
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