Research Overview
Crustaceans and Crabs
The crustaceans are a large group of arthropods----about 50,000 different species, containing the familiar lobsters, crabs, shrimps, barnacles and crayfish. The blue crab (Callinectes sapidus) which ranges from Nova Scotia to Argentina, is also native to the Chesapeake Bay, and represents an important natural resource for local fisheries. In contrast, the Atlantic green shore crab (Carcinus maenas), which is native to the European and North African coasts, is a highly invasive species on both the Western and Eastern....
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Research Description
Research Area: Neuroendocrinology
Research Specialties: Neuroendocrine regulation on crustacean physiology of molting, growth, reproduction, sex differentiation and stress responses.
My research focuses on the response of crustaceans to the neurotransmitters, neurohormones, hormones, and pheromones that regulate critical events in the life cycle of these organisms.
These events include development, maturation and growth via molting, mating and the process of de- and re-calcification, reproduction, and the hormonal regulation of stress responses caused by internal and external changes in their environment. In particular, I study the mechanism of ecdysis (adult ecdysis, adult Carcinus molting video clip, hatching). This is a fascinating and critical step in life cycle since there is no somatic growth....
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Representative Publications
A. V. Ivanina*, S. Eilers, J. Sook Chung,
S. Techa*, I.O. Kurochkin, H. Piontkivska, E.P. Sokolov, and
I. M. Sokolova (2009). Effects of cadmium exposure
and intermittent anoxia on nitric oxide metabolism in eastern oysters Crassostrea
virginica. J Exp Biol in press
Ziv Roth*, Shmuel Parnes, Simy
Wiel, Amir Sagi, Nili Zmora, J. Sook Chung and Isam Khalaila (2009).
The glycan moieties of the crustacean egg yolk protein. Does a glucose cap on a
secreted protein make sense? Glycobiology, in
press
N. Zmora, J. T. Trant, Y.
Zohar, and J. Sook Chung (2009) Molt-inhibiting hormone regulates
vitellogenesis in blue crab, Callinectes sapidus 1: an ovarian stage
dependent involvement. Saline Systems 5: 7.
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