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hydro-biology
hydro-biology n.
Brit. 
/ˌhʌɪdrə(ʊ)bʌɪˈɒlədʒi/
, /ˌhʌɪdrə(ʊ)bʌɪˈɒlədʒi/U.S. /ˌhaɪdroʊˌbaɪˈɑlədʒi/
the biology of aquatic plants and animals./ˌhaɪdroʊˌbaɪˈɑlədʒi/ΘΚΠ
the world > life > biology > study > [noun] > ecology > specific habitats
marine biology1880
limnology1893
limnobiology1899
cryobiology1921
hydro-biology1928
soil biology1928
aerobiology1937
astrobiology1941
gnotobiotics1949
saprobiology1958
gnotobiology1963
1928 K. E. Carpenter Life Inland Waters p. viii The life of the ocean [has]..engrossed the energies even of followers of the new tradition in Hydrobiology.
1941 J. G. Needham in Symposium Hydrobiol. 3 Hydrobiology is an offshoot from the old maternal rootstock of natural history.
1965 Math. in Biol. & Med. (Med. Res. Council) 309 His [sc. Antonio Moroni's] main interests are human population genetics and hydrobiology.
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