ISSN:
1573-5117
Keywords:
DNase activity in coastal seawater
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Deoxyribonuclease (DNase) activity in seawater of Tokyo Bay was determined during 1972 and 1973. The activity was dependent on substrate (deoxyribonucleic acid) concentration within the range from o to io mg/l. During the summer the activity was high in the inner part of the bay and decreased on approaching the mouth of the bay. The intensity of activity was very high compared with the standing crop of particulate deoxyribonucleic acid (DNA) and this high activity corresponded with rapid decrease of the amount of nucleic acid with increasing depth in the water columns in the bay. During the investigation carried out in 1972 the activity fluctuated, being weak in May and November and high during the summer months. The profiles for activity did not coincide with those for chlorophyll-a, particulate DNA and seston, except in September. These non-parallel relations are discussed in terms of the distribution patterns of phytoplankton and bacteria.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00014033
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