Many species of marine life have been threatened by global warming and nutrient contamination, according to a report published by a conservation team at the UN Climate Change conference in Madrid.
The analysis, the largest such survey ever undertaken, found that 700 sea sites are afflicted by low oxygen levels in comparison to only 45 from the 1960s, the International Union for Conservation of Nature (IUCN) said.
“We’re now seeing low levels of dissolved oxygen throughout large regions of the open sea,” explained Dan Laffoley, a co-editor of this report and senior adviser in marine science in IUCN.
“This is possibly the greatest wake-up telephone from the uncontrolled experimentation humankind is unleashing on the world’s sea as carbon emissions continue to rise.”
The writers said species like salmon, mackerel, marlin, and bees are sensitive to reduced oxygen levels because of their comparatively large size and energy requirements.
The IUCN report also discovered that these species have been pressured into oxygen-rich shallow waters in which they’re more vulnerable to overfishing.
Nutrient pollution is a significant source of oxygen reduction in coastal waters.
The report discovered the circumstance can be being made worse by global warming.
Increasing amounts of carbon dioxide will be enhancing the greenhouse effect, warming the planet.
According to the findings, even if the situation doesn’t change, then the oceans are predicted to shed 3-4percent of the oxygen levels by the year 2100. However, the report says that the losses are called to become more concentrated at the upper 1000m of the water column that’s the highest in marine diversity.