Results 161 to 170 of about 5,185 (200)
Some of the next articles are maybe not open access.
Ribosomal DNA Intergenic Spacer of the Swimming Crab, Charybdis japonica
Journal of Molecular Evolution, 1999We 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 +4 more
openaire +2 more sources
Swimming in Spider Crabs of the Genus Macropodia
Nature, 1960THE 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
Bait Improvement For Swimming Crab Trap Fisheries
2011One 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 +2 more
openaire +1 more source
The function of Pt-TGFβRI in spermatogenesis of the swimming crab Portunus trituberculatus
International Journal of Biological MacromoleculesThe Portunus trituberculatus is an economically important aquaculture species, and understanding its spermatogenesis is critical for ensuring sustainable industrial development. Spermatogenesis is regulated by multiple signaling pathways, but the role of the TGFβ signaling pathway remains poorly understood.
Yan, Yu +4 more
openaire +2 more sources
Family Portunidae Rafinesque, 1815 (Swimming Crabs)
2017Carapace 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.
openaire +1 more source
Fish & Shellfish Immunology, 2010
Phenoloxidase (PO), a melanin-synthesizing enzyme, found as a zymogen (proPO) in hemolymp, plays an important role in arthropod defence. In this study, a prophenoloxidase (proPO) cDNA was cloned from the haemocytes of swimming crab Portunus trituberculatus by a reverse-transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA end
Ping, Chen +5 more
openaire +2 more sources
Phenoloxidase (PO), a melanin-synthesizing enzyme, found as a zymogen (proPO) in hemolymp, plays an important role in arthropod defence. In this study, a prophenoloxidase (proPO) cDNA was cloned from the haemocytes of swimming crab Portunus trituberculatus by a reverse-transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA end
Ping, Chen +5 more
openaire +2 more sources
Lift based mechanisms for swimming in eurypterids and portunid crabs
Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 1985ABSTRACTThe striking morphological similarity that exists between appendages of the extant portunid crabs, such asCallinectes sapidus, and those of the extinet eurypterids has long been noted. The fifth pair of pereiopods in blue crags and other portunids are modified to form the broad, flat, highly mobile ‘swim paddles.’ A nearly identical ...
openaire +1 more source
Homing in the mangrove swimming crab Thalamita crenata
1994info:eu-repo/semantics ...
Cannicci, Stefano +2 more
openaire +1 more source