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The biological study of bodies of water.

hy′dro·bi′o·log′i·cal (-bī′ə-lŏj′ĭ-kəl) adj.
hy′dro·bi·ol′o·gist n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) the field of biology concerned with the study of bodies of water
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌhaɪ droʊ baɪˈɒl ə dʒi)

the study of aquatic organisms.
hy•dro•bi•o•log•i•cal (ˌhaɪ drəˌbaɪ əˈlɒdʒ ɪ kəl) hy`dro•bi`o•log′ic, adj.
hy`dro•bi•ol′o•gist, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
"The research will be multifaceted and will focus mainly on hydrobiology, hydrochemistry and hydrophysics.
Olurin, a Professor of Hydrobiology and Fisheries, stated this while delivering the 86th Inagural lecture of the state owned institution on the topic 'Dwindling Fish Production: Fisheries Research To The Rescue', that fishery contributes significantly to Nigeria's economy with the country being Abner importer of fishery products.
Research Journal of Fisheries and Hydrobiology 4 (2): 65-72, 2009".
The manipulator-equipped AUVs can be effectively used for fulfillment of research operations in hydrogeology, hydrobiology, geophysics, hydrochemistry, in oil and gaze extraction.
(3) Biology Centre of the Czech Academy of Sciences, Institute of Hydrobiology, Na Sadkach 7, 370 05 Ceske Budejovice, Czech Republic
* Integrated Marine Aquaculture, Aquaculture nutrition, Hydrobiology, Seaweeds, Fish
Mohammad Younis Laghari, Associate Professor Department of Freshwater Biology and Fisheries University of Sindh Jamshoro, is the youngest scientist who got the opportunity of postdoctoral studies at an early stage of his career and he has completed his postdoctoral from the Institute of Hydrobiology Chinese Academy of Sciences China.
Key Laboratory of Hydrobiology in Liaoning Province, College of Fisheries and Life Science, Dalian Ocean University, Heishijiao Street, Dalian 116023, Liaoning Province, China