Results 211 to 220 of about 38,116 (253)

Accumulation, detoxification, and toxicity of dibutyl phthalate in the swimming crab

Chemosphere, 2022
Dibutyl phthalate (DBP) is one of the most commonly used and toxic phthalate esters and has a variety of harmful effects on aquatic animals. However, there is still a lack of knowledge on the accumulation, detoxification, and toxicity of DBP in aquatic animals.
Yimin, He, Weichuan, Lin, Ce, Shi, Ronghua, Li, Changkao, Mu, Chunlin, Wang, Yangfang, Ye   +6 more
openaire   +2 more sources

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.
openaire   +2 more sources

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.
openaire   +1 more source

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
openaire   +1 more source

Dietary lysine requirement of juvenile swimming crab, Portunus trituberculatus

Aquaculture, 2015
Abstract An 8-week feeding trial was conducted to determine the optimal dietary lysine requirement for juvenile swimming crab reared in cement pools. Six iso-nitrogenous and iso-lipidic experimental diets (49.5% crude protein and 7.0% crude lipid) were formulated to contain graded levels of lysine, which were 1.58%, 1.89%, 2.15%, 2.41%, 2.67% and 2 ...
Min Jin, Meng-Qiang Wang, Ya-Wen Huo, Wen-Wen Huang, Kang-Sen Mai, Qi-Cun Zhou   +5 more
openaire   +1 more source

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
openaire   +1 more source

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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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.
openaire   +1 more source

Rapid immunochromatographic test strip to detect swimming crab Portunus trituberculatus reovirus

Diseases of Aquatic Organisms, 2015
Swimming crab reovirus (SCRV) is the causative agent of a serious disease with high mortality in cultured Portunus trituberculatus. A rapid immunochromatographic assay (ICA) was developed in a competitive assay format and optimized for the detection of SCRV.
LiPing, Zhang, DengFeng, Li, LianGuo, Liu, Ge, Zhang   +3 more
openaire   +2 more sources