Tech Times] The Indian Ocean is an ecological desert in the works, warned scientists who sounded the alarm not just on overfishing but also on the pernicious effects of global warming.
Overfishing is not the sole cause for the lowered catch in
the region – food sources for fish are increasingly becoming scarce
because of global warming.
Warming in the Indian Ocean has been decreasing phytoplankton by up to 20 percent, revealed Roxy
Mathew Koll, a scientist working at the Indian Institute of Tropical
Meteorology. Along with other scientists, Koll put out related research
Rising water temperatures appear to have been decreasing the
number of phytoplankton – microscopic plants located at the base of the
marine food chain serve as food for fish – for more than six decades
This scarcity of phytoplankton is feared to affect the whole food
chain and likely turn the Indian Ocean into an “ecological desert,”
according to Koll.
This situation will hound food security not just in the region but
also international fish markets that get their supply from such
Fifty-four-year-old Anslem Silva, for instance, has been fishing for
40 years from a harbor on the west coast of Sri Lanka. However, for
about five years now, it has been tough for him to fill his boat.
“Where there were fish for decades, now there is very little. It is strange, but all of us have been noticing that.”
Waters in sections of the Indian Ocean have warmed over the past
century by 1.2 degrees Celsius or 34.16 degrees Fahrenheit, leading to a
slower integration of surface water and nutrient-dense deeper waters.
This has barred nutrients from getting to plankton, which mostly find
themselves in surface waters. Read More