نتایج جستجو برای: crustacean

تعداد نتایج: 3362  

Journal: :Zoological science 2003
Hiroshi Yamagishi

Although crustaceans typically have a neurogenic heart, the primitive crustacean Triops longicaudatus has a myogenic heart with the heartbeat arising from the endogenous rhythmic activity of the myocardium. In the present investigation, the effects of six biogenic amines, epinephrine, norepinephrine, dopamine, octopamine, serotonin and histamine, on the myogenic heart of T. longicaudatus were e...

2005
Ernest S. Chang Douglas M. Neil Sharon A. Chang

Our laboratory has developed several methods for the quantification of stress in crustaceans. An ELISA was developed for the crustacean hyperglycemic hormone (CHH) from the American lobster (Homarus americanus). It is sensitive to as little as 0.2 fmol of peptide. Increases in hemolymph CHH were observed under conditions of hypoxia, elevated temperature, and altered salinity. In addition, eleva...

Journal: :Integrative and Comparative Biology 2008

Journal: :Journal of the Marine Biological Association of the United Kingdom 1911

Journal: :The Biological bulletin 2001
C D Derby P Steullet

Many animals have an abundance and diverse assortment of peripheral sensors, both across and within sensory modalities. Multiple sensors offer many functional advantages to an animal's ability to perceive and respond to environmental signals. Advantages include extending the ability to detect and determine the spatial distribution of stimuli, improving the range and accuracy of discrimination a...

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