AGASSIZ TRAWL Meaning and
Definition
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The Agassiz trawl is a type of fishing gear that is used for collecting marine organisms from deep-sea environments. It is named after the Swiss-American zoologist Louis Agassiz, who pioneered the use of trawls for scientific purposes in the late 19th century.
The Agassiz trawl consists of a large net with a wide mouth that is towed behind a research vessel to capture specimens as it is dragged through the water column. The trawl net is typically made of fine mesh material to prevent the escape of smaller organisms. It is secured to sturdy metal frames that help maintain the net's shape and prevent it from collapsing under the pressure of the water.
The primary purpose of an Agassiz trawl is to collect a wide range of deep-sea organisms, including fish, invertebrates, and various forms of plankton. This gear enables scientists to study the biodiversity, distribution, and abundance of marine life and to investigate ecological interactions within deep-sea habitats.
The Agassiz trawl is usually deployed at great depths, ranging from a few hundred meters to multiple kilometers below the ocean surface. It is retrieved after a specific period of time, typically around 30 minutes, to ensure a representative sample is obtained. Once retrieved, the captured organisms are carefully sorted, preserved, and analyzed for scientific research, helping to further our understanding of the ocean's ecosystems and their dynamics.
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Etymology of AGASSIZ TRAWL
The term "Agassiz trawl" is named after Louis Agassiz, a Swiss-born American naturalist and geologist who made significant contributions to the field of marine biology. Agassiz played a crucial role in the development of oceanographic research and was known for his pioneering work on the exploration of the ocean floor.
The word "trawl" refers to a type of fishing net, which is dragged along the seabed to catch marine organisms. The Agassiz trawl was a specific type of trawl net that was designed and utilized by Louis Agassiz during his oceanographic expeditions.
The etymology of the word "Agassiz" comes from the surname of Louis Agassiz himself, which has Swiss origins. The name "Agassiz" is derived from the Old High German personal name "Agiso", which means "sharp spear" or "blade".
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