Long-term Ecosystem Observatory

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Glass eel on the online in situ microscope at the LEO project Rostrataluk.jpg
Glass eel on the online in situ microscope at the LEO project
Sea bass image taken off New Jersey, USA Centropristis striata underwater.jpg
Sea bass image taken off New Jersey, USA

The Long-term Ecological Observatory (LEO) is a project off the coast of New Jersey, United States, which monitors the processes in the ocean with online IT systems, spearheaded by the Institute of Marine and Coastal Sciences at Rutgers University. Already installed are sensors for temperature, salinity, transmission, light, light attenuation, fluorescence, pressure and velocity.

With improvements in Internet infrastructure it will be possible to observe and evaluate plankton (like copepods) or juvenile fish (like Atlantic herring) online with a quantitative in situ microscope, known as the ecoSCOPE, in order to get more insight into some of the enigmatic life histories of ocean organisms, like predator–prey interaction between herring and copepods, the Eel story, or oxygen depletion.

Related Research Articles

Plankton Organisms that are in the water column and are incapable of swimming against a current

Plankton are the diverse collection of organisms found in water that are unable to propel themselves against a current. The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and whales.

Herring Forage fish, mostly belonging to the family Clupeidae

Herring are forage fish, mostly belonging to the family Clupeidae.

Zooplankton Heterotrophic protistan or metazoan members of the plankton ecosystem

Zooplankton are heterotrophic plankton. Plankton are organisms drifting in oceans, seas, and bodies of fresh water. The word zooplankton is derived from the Greek zoon (ζῴον), meaning "animal", and planktos (πλαγκτός), meaning "wanderer" or "drifter". Individual zooplankton are usually microscopic, but some are larger and visible to the naked eye.

Upwelling Replacement by deep water moving upwards of surface water driven offshore by wind

Upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water from deep water towards the ocean surface, replacing the warmer, usually nutrient-depleted surface water. The nutrient-rich upwelled water stimulates the growth and reproduction of primary producers such as phytoplankton. Due to the biomass of phytoplankton and presence of cool water in these regions, upwelling zones can be identified by cool sea surface temperatures (SST) and high concentrations of chlorophyll-a.

EcoSCOPE

The ecoSCOPE is an optical sensor system, deployed from a small remotely operated vehicle (ROV) or fibre optic cable, to investigate behavior and microdistribution of small organisms in the ocean.

Fishery Raising or harvesting fish

Fishery can mean either the enterprise of raising or harvesting fish and other aquatic life; or more commonly, the site where such enterprise takes place. Commercial fisheries include wild fisheries and fish farms, both in freshwater bodies and the oceans. About 500 million people worldwide are economically dependent on fisheries. 171 million tonnes of fish were produced in 2016, but overfishing is an increasing problem — causing declines in some populations.

The pelagic zone consists of the water column of the open ocean, and can be further divided into regions by depth, as illustrated on the right. The word "pelagic" is derived from Ancient Greek πέλαγος (pélagos) 'open sea'. The pelagic zone can be thought of in terms of an imaginary cylinder or water column that goes from the surface of the sea almost to the bottom. Conditions in the water column change with depth: the pressure increases; the temperature and amount of light decrease; the salinity and amount of dissolved oxygen all change.

Pelagic fish Fish living in the pelagic zone of ocean or lake waters – being neither close to the bottom nor near the shore

Pelagic fish live in the pelagic zone of ocean or lake waters – being neither close to the bottom nor near the shore – in contrast with demersal fish that do live on or near the bottom, and reef fish that are associated with coral reefs.

The Integrated Ocean Observing System is an organization of systems that routinely and continuously provides quality controlled data and information on current and future states of the oceans and Great Lakes from the global scale of ocean basins to local scales of coastal ecosystems. It is a multidisciplinary system designed to provide data in forms and at rates required by decision makers to address seven societal goals.

Ocean Observatories Initiative A program that focuses the work of an emerging network of science driven ocean observing systems

The Ocean Observatories Initiative (OOI) is a National Science Foundation (NSF) Major Research Facility composed of a network of science-driven ocean observing platforms and sensors in the Atlantic and Pacific Oceans. This networked infrastructure measures physical, chemical, geological, and biological variables from the seafloor to the sea surface and overlying atmosphere, providing an integrated data collection system on coastal, regional and global scales. OOI's goal is to deliver data and data products for a 25-year-plus time period, enabling a better understanding of ocean environments and critical ocean issues.

Forage fish Small fish which are prey

Forage fish, also called prey fish or bait fish, are small pelagic fish which are preyed on by larger predators for food. Predators include other larger fish, seabirds and marine mammals. Typical ocean forage fish feed near the base of the food chain on plankton, often by filter feeding. They include particularly fishes of the family Clupeidae, but also other small fish, including halfbeaks, silversides, smelt such as capelin and goldband fusiliers.

IMBeR is a Future Earth-SCOR sponsored international project that promotes integrated marine research through a range of research topics towards sustainable, productive and healthy oceans at a time of global change, for the benefit of society.

South African Environmental Observation Network A network to perform long-term ecological research in South Africa and surrounding waters

The South African Environmental Observation Network (SAEON) is a science network of people, organisations and, most importantly observation platforms, that perform Long-Term Ecological Research (LTER) in South Africa and its surrounding oceans. The SAEON is of global importance as an innovative approach in ecology to understand environmental change and to determine the impact of anthropogenic forces at multiple scales but it is a remarkably complex challenge to statistically discern between ubiquitous natural variability and exogenous forcing. The SAEON constitutes a national government response to the World Summit on Sustainable Development and is a component of the GEO. The SAEON has become the leader in environmental science and observation in South Africa but has been criticised for taking a long time to establish, a situation which was inevitable in view of SAEON's multiple stakeholder corps. It has also been raised that the cost of replicated experimental treatments across SAEON sites will be high

The European Consortium for Ocean Research Drilling (ECORD) is a consortium of 14 European countries and Canada that was formed in 2003 to join the Integrated Ocean Drilling Program (IODP) as a single member. ECORD is now part of the International Ocean Discovery Program, which addresses crucial questions in Earth, Ocean, Environmental and Life sciences based on drill cores, borehole imaging, observatory data, and related geophysical imaging obtained from beneath the ocean floor using specialized ocean-going drilling and research vessels and platforms. As a contributing member of IODP, ECORD is entitled to berths on every IODP expedition.

Nils Bang

Nils Daniel Bang was a South African oceanographic scientist who was a pioneer in the study of the fine structure of coastal upwelling systems. In March 1969, Bang initiated, planned and executed South Africa's first truly multi-ship oceanographical research operation, the Agulhas Current Project, along the current's length. Although the research was conducted on a limited budget and with rudimentary equipment, Bang's studies using thousands of closely spaced bathythermograph readings were later corroborated by satellite imagery and airborne radiation thermometry.

Tundi Agardy is a marine conservationist and the founder of Sound Seas – a Washington DC-based group specializing in working at the nexus of marine science and policy in order to safeguard ocean life.

Michael J. Kennish

Michael J. Kennish is an American marine scientist and a research professor in the Institute of Marine and Coastal Sciences at Rutgers University in New Brunswick, New Jersey. He is best known for his work on the effects of human activities on estuarine and marine environments.

Regional Scale Nodes Electro-optically cabled underwater observatory that directly connects to the global Internet

The National Science Foundation's (NSF) Ocean Observatories Initiative (OOI) Regional Scale Nodes (RSN) component is an electro-optically cabled underwater observatory that directly connects to the global Internet. It is the largest cable-linked seabed observatory in the world, and also the first of its kind in the United States.

J. Frederick Grassle American oceanographer and academic

John Frederick Matthews ("Fred") Grassle was an American marine biologist, oceanographer, professor, and distinguished research scientist, notable for early work on the communities associated with deep-sea hydrothermal vents, and for his involvement in the creation of the Census of Marine Life and the first integration of marine biological data on a global scale, the Ocean Biogeographic Information System.

Trevor Platt British and Canadian marine scientist

Trevor Charles Platt was a British and Canadian biological oceanographer who was distinguished for his fundamental contributions to quantifying primary production by phytoplankton at various scales of space and time in the ocean.

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