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MARINE BACTERIA OF CARDIGAN BAY. I. BACTERIA OF AN OFF‐SHORE AREA
Author(s) -
HUDLESTON MABYN
Publication year - 1955
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1955.tb02057.x
Subject(s) - bay , bacteria , obligate , biology , seasonality , marine bacteriophage , botany , ecology , oceanography , geology , genetics
SUMMARY: A study of marine bacteria from a fixed off‐shore area in Cardigan Bay showed there was little significance in the variation between numbers from different levels within 8 fathoms deep. There was a suggestion of seasonal variation in surface water in colony counts at 15–18°. In general, the bacterial content was highest over the summer months, but showed little direct correlation with temperature, pH or light. Strains were mainly obligate halophytes and small Gram‐negative rods predominated (96%). Nearly 50% of strains isolated liquefied gelatin; otherwise, biochemical reactions were weak. The proportion of pigmented strains was low. Alien bacteria were present in irregularly varying numbers in all samples and showed no seasonal variation. Coli‐aerogenes strains were recorded in small numbers, at all depths and in all seasons, but Bact. coli type I only rarely occurred.