Pollution

There will be more plastic than fishes in oceans by 2050

Instrument meant to survey plankton population accidentally records amount of plastics in the oceans

 
Last Updated: Friday 19 April 2019

In a major breakthrough, instruments known as continuous plankton recorders (CPRs) — used to survey plankton population since 1931 — have accidentally recorded the history of plastic in oceans.

CPRs are torpedo-like devices that have been in use since 1931 to survey plankton populations. In recent years CPRs have been constantly tormented by large fishing lines and other plastics that are dumped in oceans.

As something gets attached to the recorder, the crew responsible for the device would record what happened in a log.

The CPR first trapped a plastic bag off the coast of Ireland in 1965. This could have been the first marine plastic litter ever found, say researchers.

Analysing 60 years of log books for CPRs, scientists recorded first strong evidence about the amount of plastic polluting the oceans.

The findings confirmed that there has been a significant and steady increase in the quantity of plastics found in the oceans since 1990.

 “The researchers have demonstrated the rise in ocean plastics using a single, long-term data set,” says Utrecht University’s oceanographer Erik van Sebille.

On a positive note, the number of plastic bags found in the ocean has comparatively decreased after 2010. However, it is still moving forward in dangerous levels.

Marine flora and fauna can become entangled with larger plastics — particularly cords, nets and ropes. Due to this, the entire marine ecosystem is drastically affected.

The researchers involved in this study hope that they can raise a wave of awareness about ocean plastics through the new findings.

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  • Silent Spring written by Rachel Carson was published on September 27, 1962, a monumental work documenting the serious environmental effects caused by the indiscriminate use of pesticides.After a perod of sixty years sine the publication , continuing indiscriminate use of pesticides poses a serious threat to environment including its bioticand abiotic components.Our species are also under serious threat due to indiscriminate usage of pesticide.The ongoing anthropogenic mass extinction is the result of our activities. In fact, there are two approaches in science-holistic approach and reductionist approach. In the present day, we are emphasizing on reductionist approach which alone can not solve the problem of environment. Moreover, human behaviours are the root cause of environmental problems. Sustainable human behaviours should be promoted to save our earth, the precious gift of nature, the biodiversity and to safeguard the future of our future generation. This requires concerted efforts involving experts from various disciplines, formulation of need based local , regional and national policies and their strict implementations with the support from the competent authority.At the same , people should be involved in protecting their environment in all possible ways.Dissemination of information to a limited number of people is perhaps inadequate in solving the problem which is also applicable in case of plastic use and similar other cases.

    Posted by: Fatik Baran Mandal | 8 months ago | Reply