Results 111 to 120 of about 453 (155)

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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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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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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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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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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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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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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Effects of blue swimming crab steamed water as a attractant and palatable stimulant on growth and survival rates of blue swimming crabs (Portunus pelagicus)

2022
Khon Kaen Agriculture Journal, 50, 6, 1580 ...
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Family Portunidae Rafinesque, 1815 (Swimming Crabs)

2017
Carapace subhexagonal to transversely oval, usually broader than long, flat, slighlty convex, regions not well-defined, posterior surface with transverse ridges, epibranchial ridge present; anterolateral margins with spines, with distint junction with posterolateral margin, usually marked with epibranchial spine.
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