Low oxy­gen af­fects some fish

Down to Earth - - ANALYSIS - THE LEVEL

of oxy­gen in wa­ter af­fects cer­tain species of fish. Deep wa­ters of the West Coast, US, are low on oxy­gen. Fish species such as spot­ted rat­fish and pe­trale sole are most sen­si­tive and their pres­ence has been found to decline sharply in the West Coast, while green­striped rock­fish and dover re­main un­af­fected by dis­solved oxy­gen lev­els. Such co-re­la­tion can af­fect the marine chain by driv­ing fish into habi­tats that are less de­sir­able for fish­ing. Fish­eries Oceanog­ra­phy, March 11

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