Results 141 to 150 of about 2,282 (181)

Simultaneous determination of 16 herbicides in Procambarus clarkii

Food Chemistry
This study is focused on developing a sensitive and reliable analytical method for determining 16 herbicides in Procambarus clarkii using pass-through solid phase extraction coupled with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS).
Na, Li, Aiying, Wang, Aijing, Chen, Mengmeng, Wu, Hongcai, Liu, Yanyan, Yang, Chao, Wang, Dong, Sun   +7 more
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Hemodynamics of the Crayfish Procambarus clarkii

Physiological Zoology, 1994
Crayfish (29.8 g) maintained at 25° C were examined with regard to their cardiovascular pressure-flow relationships. Pulsatile arterial hemolymph flows were simultaneously recorded in the three major arteries leading from the heart. Hemolymph pressures were measured throughout the cardiovascular system. Tail movements were also monitored.
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Dominance hierarchy formation in juvenile crayfish procambarus clarkii

Journal of Experimental Biology, 1999
ABSTRACT The formation of social dominance hierarchies was studied in groups of five juvenile crayfish, 1.3–1.8 cm in length. Animals were grouped together in a small, featureless aquarium after having lived in isolation for more than a month. The occurrence of each of four behavior patterns (‘attack’, ‘approach’, ‘retreat’ and ‘escape’)
, Issa, , Adamson, , Edwards
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Procambarus clarkii

2012
Procambarus clarkii (Girard, 1852) (Fig. 30O, Pl.5B) Cambarus clarkii Girard, 1852: 91. — Hagen 1870: 39, pl. I, figs, 7–10, 99,100; pl. II, figs, 133–134; pl. IV. Procambarus clarkii. — Hobbs 1976: 72, fig. 56d. — Rodriguez-Alvarez & Campos 1994: 729. — Johnson & Johnson 2008: 69, photo pages 70–72. — Kuris et al. 2007: 636. — Larson & Olden
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Austropotamobius pallipes reduction vs. Procambarus clarkii spreading: Management implications

Journal for Nature Conservation, 2014
One of the main threats to native European crayfish is the spread of alien crayfish species that are immune carriers of the detrimental crayfish plague Aphanomyces astaci. In this study we analyzed both at a regional and at a local scale factors determining native and alien crayfish distribution in an area where the species Procambarus clarkii is ...
R. Manenti, M. Bonelli, D. Scaccini, A. Binda, A. Zugnoni   +4 more
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Bioenergetics of juveniles of red swamp crayfish (Procambarus clarkii)

Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology, 2001
Procambarus clarkii is an endemic North American crayfish species that was introduced into Spain in 1973 for aquacultural and fishing purposes. Although P. clarkii is a well-studied species for commercial production, there is a great gap in the knowledge of the bioenergetics of juveniles.
P J, Gutiérrez-Yurrita, C, Montes
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Stimulation-induced changes at crayfish (Procambarus clarkii) neuromuscular terminals

Cell and Tissue Research, 1989
The fine structure of neuromuscular terminals of the single excitor axon was examined in the limb stretcher muscle of the crayfish Procambarus clarkii. A morphometric comparison of the neuromuscular terminals of the left and right limbs of a control crayfish showed them to be similiar in qualitative as well as quantitative features. The excitor axon to
K M, Mearow, C K, Govind
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Nitrite toxicity to the crayfishProcambarus clarkii

Bulletin of Environmental Contamination and Toxicology, 1985
The purpose of this study was to determine the effects of acute nitrite exposure to the crayfish Procambarus clarkii (Decapoda). Specific objectives of this study included (1) determining the 24-, 48-, 72- and 96-h LC-50's of nitrite to crayfish of different weights and genders in freshwater, (2) determining the LC-50's of nitrite to crayfish in water ...
M P, Gutzmer, J R, Tomasso
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Light preferences of red swamp crayfish (Procambarus clarkii)

Hydrobiologia, 2009
Light intensity preferences of Procambarus clarkii (Girard, 1852) were evaluated in an indoor fiber glass trough, consisting of five equal length (4 m) zones with light intensities varying from dark to 1,000 lux (L), situated at the ‘Las Vegas del Guadiana’ fish farm in Extremadura (Spain).
Pavel Kozák, José Martín Gallardo, José C. Escudero García   +2 more
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Hydrodynamic orientation of crayfish (Procambarus clarkii) to swimming fish prey

Journal of Comparative Physiology A, 1995
Reversibly blindfolded crayfish (Procambarus clarkii) react to small swimming fish (Astyanax fasciatus mexicanus) approaching or passing nearby with antennal and cheliped movements and body turns (Fig. 3). We studied the accuracy and dynamics of crayfish orientation responses to the previously analyzed hydrodynamic disturbances caused by the fish ...
T, Breithaupt, B, Schmitz, J, Tautz
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