Filters








14,980 Hits in 3.7 sec

The Hairy Crab

1880 Scientific American  
To this end the commission obtained pure imperial sugar beet seed from abroad, which they distributed to farmers who desired to raise them.  ...  That the species may exist for an indefinite time. without tbe winged female seems highly probable from the fact that the sexual individuals may be produced from hypogean females as well as from aerial  ... 
doi:10.1038/scientificamerican03061880-153 fatcat:risw5srvpjc3zoa6doeb2giuk4

Foreign Substances attached to Crabs

ERNEST W. L. HOLT
1890 Nature  
Colomb; strength of ships, with special reference to distribution of shearing stress over transverse section, by Prof. P. Jenkins; steatite as a pigment for anti-corrosive paints, by Mr. F . C.  ...  Foreign Substances attached to Crabs. I AM glad to see that Mr.  ... 
doi:10.1038/041515b0 fatcat:2joahk3mkfa7fepnhiqb5iio44

"CRAB" CARE AND CANCER CHEMOTHERAPY

Frederick O. Stephens
1976 Medical Journal of Australia  
For an answer, let Dr.  ...  It is now proposed that the Hospital Committee should devote £2,000 for an Infectious Diseases Hospital, £1,500 for an _ operating theatre, £1,000 for installing radiators, £1,000 for an elec- tric lift  ... 
doi:10.5694/j.1326-5377.1976.tb117617.x fatcat:vq2b64zqvncllkd2u45phhdhui

Microplastics disrupt hermit crab shell selection

Andrew Crump, Charlotte Mullens, Emily J. Bethell, Eoghan M. Cunningham, Gareth Arnott
2020 Biology Letters  
We kept 64 female hermit crabs in tanks containing either polyethylene spheres (n = 35) or no plastic (n = 29) for 5 days.  ...  These results indicate that microplastics impair cognition (information-gathering and processing), disrupting an essential survival behaviour in hermit crabs.  ...  L. obtusata shell (i.e. 100% the preferred weight for the 84 weight of the hermit crab).  ... 
doi:10.1098/rsbl.2020.0030 pmid:32343937 fatcat:bpboqppczfflrjk2yoyeggqfuq

Research on the Application of Crab Culture in the Development of River Crab Industry of Shanghai

Wanna Cui, Bo Ning
2018 Journal of Marine and Island Cultures  
Keywords crab culture, river crab industry in Shanghai, application ntroduction River crab, scientific name is the Chinese mitten crab (Eriocheir sinensis), commonly known as hairy crabs, is a unique aquaculture  ...  It is expected to promote the sustainable development of river crab industry in Shanghai through the application of crab culture.  ...  Therefore, how to control the cost effectively and improve the market competitiveness of Shanghai river crabs is an important problem for the development of the river crab industry in Shanghai. onclusions  ... 
doi:10.21463/jmic.2018.07.2.08 fatcat:yjjxlfmjcvhl7j66sndjv5uljm

King-Crabs and the Manufacture of Cancerine

1869 Scientific American  
------four hundred dollars. . - . which it was built, if not that for which it was bought. © 1869 SCIENTIFIC AMERICAN, INC,  ...  Hogs are extremely fond of king-crabs, and large num-tilate a room by means of ice. The apparatus had the form bers are caught for that purpose.  ... 
doi:10.1038/scientificamerican06051869-362b fatcat:p52bxyfgcnbqfi7p7qtkafhma4

Hard to Manage? Dynamics of Soft-Shell Crab in the Newfoundland and Labrador Snow Crab Fishery

Darrell R.J. Mullowney, Krista D. Baker, Julia R. Pantin
2021 Frontiers in Marine Science  
The results demonstrate an interaction between seasonality and harvest rate in governing soft-shell crab levels in the fishery.  ...  This study is intended to formalize best-practice management advice for avoidance of soft-shell crab in the fishery.  ...  John's, NL, who have collected the data on snow crab shell condition and sizes used in this study. We also express thanks to the DFO technical staff from Science Branch in St.  ... 
doi:10.3389/fmars.2021.591496 fatcat:r7xcdeo7wnhxrpo4u5etxc4sb4

MANGROVE BRACHYURAN CRABS IN WORI, NORTH SULAWESI, INDONESIA

Rianta Pratiwi, Ernawati Widyastuti
2018 Marine Research in Indonesia  
In this study, the habitat distribution and diversity of crabs in Wori mangrove environment was recorded from October 2015 and August 2016.  ...  Mangroves are the most suitable feeding, breeding and nursery grounds for crabs and other crustaceans.  ...  Collection method included: hand picking for surface crabs and for burrowing crabs, a shovel was used to dig the hole and catch the crab by hand.  ... 
doi:10.14203/mri.v43i2.300 fatcat:dg2zvhrl6jcwvdr6f65g5ijoxu

Effect of escape vents on retention and size selectivity of crab pots for swimming crab Portunus trituberculatus in the East China Sea

Jian Zhang, Zhanwen Pei, Pingguo He, Jiangao Shi
2020 Aquaculture and Fisheries  
A B S T R A C T An increase in the crab pot fishery in the East China Sea has caused great pressure on swimming crab Portunus trituberculatus resources.  ...  Thus, it is essential to implement suitable measures to release sublegal-sized crabs to increase the number of recruits for legal-sized crabs.  ...  This study was jointly funded by National Natural Science Foundation of China (31001138) and Special Fund for Agro-scientific Research in the Public Interest (201203018).  ... 
doi:10.1016/j.aaf.2020.04.008 fatcat:vwf4jrrat5ebnohgvtuoca5vii

Shedding new light on the Crab with polarized X-rays

M. Chauvin, H.-G. Florén, M. Friis, M. Jackson, T. Kamae, J. Kataoka, T. Kawano, M. Kiss, V. Mikhalev, T. Mizuno, N. Ohashi, T. Stana (+4 others)
2017 Scientific Reports  
The polarization of emissions from a bright celestial X-ray source, the Crab, is reported here for the first time in the hard X-ray band (~20-160 keV).  ...  The polarization parameters for the pulsar itself are measured for the first time in the X-ray energy band and are consistent with observations at optical wavelengths.  ...  For an unpolarized beam, PF is Rayleigh-distributed and therefore positive definite. As a result, a large number of photons is required to make a statistically constrained measurement.  ... 
doi:10.1038/s41598-017-07390-7 pmid:28798398 pmcid:PMC5552847 fatcat:7b6s6qcljza7ddgqmnahsrgnim

Identification of Sex-Related Genes from the Three-Spot Swimming Crab Portunus sanguinolentus and Comparative Analysis with the Crucifix Crab Charybdis feriatus

Yin Zhang, Khor Waiho, Mhd Ikhwanuddin, Hongyu Ma
2021 Animals  
Crabs within the family Portunidae are important marine species in both aquaculture and fishery sectors.  ...  The transcriptomic comparison analysis might provide references for better understanding the sex determination and differentiation mechanisms among portunids.  ...  Funding: This study was funded by the STU Scientific Research Foundation for Talents (No.  ... 
doi:10.3390/ani11071946 fatcat:jkudjtxrt5agjj5dowzb3ch5tm

A computer vision approach for studying fossorial and cryptic crabs [article]

César Augusto Herrera, Ronald Baker, Janine Sheaves, Marcus Sheaves
2020 bioRxiv   pre-print
Traditional sampling techniques for intertidal crabs are often invasive, labour intensive and/or inconsistent.  ...  This paper presents a non-invasive computer vision and learning protocol for sampling fossorial and cryptic crabs in their natural environment.  ...  We want to acknowledge the Advanced Scientific Programming in Python Asia Pacific summer school for a travel grant and the training conferred to CH.  ... 
doi:10.1101/2020.05.11.085803 fatcat:oviqu2qr6nggvhcforcaaqvu5i

West African brachyuran crabs (Crustacea: Decapoda)

1981 Deep Sea Research Part B Oceanographic Literature Review  
We believe that one other species reported in the West African fauna by Monod (1956:151) is based on an erroneously labeled specimen.  ...  Such an insular distribution pattern for a single species is difficult to understand or explain.  ...  Euryozius bouvieri, sensu lato, is known to be a bright red crab. Melliss (1875:275) referred to an orange-red crab. A.  ... 
doi:10.1016/0198-0254(81)91632-0 fatcat:hjmxvaht2jgwdfpj3b444tw6ve

Acceleration of X-Ray Emitting Electrons in the Crab Nebula

Gwenael Giacinti, John G. Kirk
2018 Astrophysical Journal  
For sufficiently strong turbulence, we find α_ e≃ -2.2, and both the photon index and the flux of 1-100 keV X-rays from the Crab Nebula, as measured by NuSTAR, can be reproduced.  ...  We thank Uri Keshet for useful discussions. This research was supported by a Grant from the GIF, the German-Israeli Foundation for Scientific Research and Development.  ...  A discussion of the application to the Crab Nebula is presented in §4.  ... 
doi:10.3847/1538-4357/aacffb fatcat:jcclohtbqvg5tclxn6ubjrkqvy

Individual behavioral type captured by a Bayesian model comparison of cap making by sponge crabs

Keita Harada, Naoki Hayashi, Katsushi Kagaya
2020 PeerJ  
For a model case, we studied the sponge crab Lauridromia dehaani known to make and carry a 'cap' from a natural sponge for camouflage.  ...  In addition, we calculated the marginal-level widely applicable information criterion (mWAIC) values for hierarchical models to evaluate and compared them with the non-hierarchical models from the predictive  ...  ACKNOWLEDGEMENTS We wish to thank Shirahama aquarium for allowing us to use the aquarium tanks, and Sakai fishing port authorities for providing the crabs. We wish to acknowledge Dr.  ... 
doi:10.7717/peerj.9036 pmid:32461827 pmcid:PMC7231507 fatcat:e4qldb4jofb7bhrtpfjb4hdb2u
« Previous Showing results 1 — 15 out of 14,980 results