scholarly journals Population biology of the burrowing crab Neohelice granulata, (Crustacea: Decapoda: Varunidae) from a tropical mangrove in Brazil

2009 ◽  
Vol 26 (1) ◽  
pp. 32-37 ◽  
Author(s):  
Rafael A. Gregati ◽  
Maria L. Negreiros-Fransozo
Keyword(s):  
Population Biology ◽  
Neohelice Granulata ◽  
Burrowing Crab

A baseline study of microplastics in the burrowing crab (Neohelice granulata) from a temperate southwestern Atlantic estuary

2020 ◽  
Vol 150 ◽  
pp. 110686 ◽  
Author(s):  
Diana M. Villagran ◽  
Daniela M. Truchet ◽  
Natalia S. Buzzi ◽  
Ana D. Forero Lopez ◽  
Melisa D. Fernández Severini
Keyword(s):  
Southwestern Atlantic ◽  
Neohelice Granulata ◽  
Baseline Study ◽  
Burrowing Crab

Burrowing Crab (Neohelice granulata) as a Potential Bioindicator of Heavy Metals in the Bahía Blanca Estuary, Argentina

2012 ◽  
Vol 64 (1) ◽  
pp. 110-118 ◽  
Author(s):  
Pía Simonetti ◽  
Sandra Elizabeth Botté ◽  
Sandra Marcela Fiori ◽  
Jorge Eduardo Marcovecchio
Keyword(s):  
Heavy Metals ◽  
Bahía Blanca Estuary ◽  
Neohelice Granulata ◽  
Blanca Estuary ◽  
Burrowing Crab

Lipase activity sensitive to dopamine, glucagon and cyclic AMP in the hepatopancreas of the euryhaline burrowing crab Neohelice granulata (Dana, 1851) (Decapoda, Grapsidae)

Crustaceana ◽  
2015 ◽  
Vol 88 (1) ◽  
pp. 51-65 ◽  
Author(s):  
María S. Michiels ◽  
Juana C. del Valle ◽  
Alejandra A. López Mañanes
Keyword(s):  
Cyclic Amp ◽  
Direct Effect ◽  
Lipase Activity ◽  
Ecological Research ◽  
Biochemical Characteristics ◽  
Neohelice Granulata ◽  
Concomitant Decrease ◽  
Heat Tolerant ◽  
Burrowing Crab

We studied the biochemical characteristics and modulation by dopamine, glucagon and cAMP of lipase activity in hepatopancreas of the euryhaline crabNeohelice granulata(Dana, 1851), considered to be an emergent model for biochemical, physiological and ecological research. Lipase activity was maximum at pH 8.5; it exhibited Michaelis-Menten kinetics (apparent ), was highest at 37°C but appeared to be cold- and heat-tolerant, since it was high at 4°C and at 45°C. Lipase activity was enhanced upon incubation of hepatopancreas with 10−4 M dopamine (about 100%), 2 × 10−3 M glucagon (about 250%) and 10−4 M cAMP (about 150%) suggesting a role of these chemical messengers in mechanisms of regulation of lipolytic activities and its direct effect on the hepatopancreas. The concomitant decrease in triglycerides content upon dopamine and cAMP treatment suggests a link between enhanced lipase activity by these messengers and triglycerides catabolism.

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