Inexpensive Way To Collect Samples From Ocean Floor

Alyson santoro a postdoctoral researcher at woods hole oceanographic institution writes from off the coast of chile where she is studying microbes in the nitrogen cycle.

Inexpensive way to collect samples from ocean floor.

Sampling the ocean floor. The dsdp was so successful that a new international ocean drilling program odp was created in 1985. In the past biologists hoping to collect samples from waters as deep as 3 000 feet could do little more than sink trawl nets and hope for the best says amy wright an organic chemist at harbor. Researchers send a pulse of sound down to the ocean floor and calculate the depth based on how long it takes the sound to return.

Even recycling isn t off the hook globally only 9 of plastic is recycled. Once you have allowed sufficient water to flow you are ready to collect samples. Take measurements every two to three minutes and once you get three consistent measurements in a row you are ready to collect samples. Despite having access to the most modern oceanographic sampling equipment on the research vessel melville our surface seawater and particle samples.

Some of these sediments are soil and rock particles carried from shore some are skeletal remains of the critters that live in the ocean and some are precipitates from the sea water itself. Many countries dump their garbage directly into it. We are interlopers here on the surface of the ocean. Ocean floor drilling continues today with a larger and more technologically advanced ship the joides resolution.

Of course some scientific research requires actually traveling to the bottom of the ocean to collect samples or directly observe the ocean floor but this is more expensive and can be dangerous. Found in clay samples by folks aboard the joides resolution research ship the microbes survived almost 80 metres beneath the sea floor underneath an astonishing 5 7 kilometres 3 5 miles of water. In countries with trash collection plastic escapes on its way to and at the landfill then flows downstream. This 469 foot 143 meter ship can drill in water that is 27 018 feet 8 234 meters deep.

Ocean sampling day summary on june 21 2015 the summer solstice thousands of scientists will join together to participate in ocean sampling day osd an international collaboration to collect water samples from the ocean and rivers around the world.