Zee Media Bureau
Sydney: In a fresh finding, marine biologists have found that fish living in the mesopelagic zones form 95 per cent of the world`s fish biomass.
The latest findings revealed that mesopelagic fish in the earth`s oceans constitute 10 to 30 times more biomass than previously thought.
According to researchers, mesopelagic fish live between 100-1000 metres below the surface.
The new study, which is published in the journal Nature Communications, estimates the population of mesopelagic fish to be around 10,000 million tons against 1000 million tons of the fish estimated earlier.
“This very large stock of fish that we have just discovered that holds 95 per cent of all the fish biomass in the world is untouched by fishers,” said the researchers.
Researchers said the secret behind their vast population is their capacity to avoid fish nets and prowling eyes of the birds.
They have large eyes to see in the dim light, and also enhanced pressure-sensitivity.
“They are able to detect nets from at least five metres and avoid them,” noted professor Carlos Duarte of University of Western Australia.
Duarte and his team carried out a seven-month circumnavigation of the globe in the Spanish research vessel Hesperides collecting echo-soundings of mesopelagic fish to carry out the study.
He said during the night, most mesopelagic species tend to feed near the surface and move to deeper layers in the daytime to avoid birds.
Pic credit: CSIC
With Agency Inputs
By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts.
Cookies Setting
By clicking “Accept All Cookies”, you agree to the storing of cookies on your device and the processing of information obtained via those cookies (including about your preferences, device and online activity) by us and our commercial partners to enhance site navigation, personalise ads, analyze site usage, and assist in our marketing efforts. More information can be found in our Cookies and Privacy Policy. You can amend your cookie settings to reject non-essential cookies by clicking Cookie Settings below.
Manage Consent Preferences
Strictly Necessary Cookies
These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work or you may not be able to login.
Functional Cookies
These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.
Targeting Cookies
These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They are also used to limit the number of times you see an advert as well as help measure the effectiveness of an advertising campaign. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.
Performance Cookies
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we may not know when you have visited our site, and may not be able to monitor its performance.