Aquatic Science is the multidisciplinary study of aquatic ecosystems, both freshwater and marine. Scientific investigations range in scale from the molecular level of contaminants to the stresses on entire ecosystems.
Some of the major fields of study within aquatic sciences include: limnology (study of lakes, rivers, wetlands and groundwater); biogeochemistry; aquatic ecology; oceanography; marine biology; and hydrology.
The African Journal of Aquatic Science is a peer-reviewed scientific journal covering research in the aquatic sciences in Africa. It was established in 1975 as Journal of the Limnological Society of Southern Africa and renamed in 1989 as the Southern African Journal of Aquatic Sciences, before obtaining its current name in 2000. It is published by Taylor & Francis on behalf of the Southern African Society of Aquatic Scientists.American Fisheries Society
American Fisheries Society (established 1870 in New York City), is the "world’s oldest and largest organization dedicated to strengthening the fisheries profession, advancing fisheries science, and conserving fisheries resources." It is a member-driven 501(c)(3) nonprofit organization governed by an Executive Director, a Governing Board and officers who are guided by the AFC's organizational documents, a constitution and set of rules. Their stated mission is "to improve the conservation and sustainability of fishery resources and aquatic ecosystems by advancing fisheries and aquatic science and promoting the development of fisheries professionals." AFS publishes five peer-reviewed fish journals, books, "Fisheries (magazine)", organizes seminars and workshops that promote scientific research and fisheries management, and encourages fisheries education by utilizing 58 university-based student subunits. AFS has 48 Chapters comprising four geographic regions in North America: North Central, Northeastern, Southern and Western and includes "two bi‐national Chapters (Atlantic International, Washington‐British Columbia) and the Mexico Chapter."Aquatic Sciences and Fisheries Abstracts
Aquatic Sciences and Fisheries Abstracts is an abstracting and indexing service covering aquatic science and its subfields. It is maintained by the Food and Agriculture Organization (FAO) of the United Nations. It replaced the previous Current Bibliography for Aquatic Sciences and Fisheries (FAO) and Aquatic Biology Abstracts.Aquatic ecosystem
An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems.Benthos
Benthos is the community of organisms that live on, in, or near the seabed, river, lake, or stream bottom, also known as the benthic zone. This community lives in or near marine or freshwater sedimentary environments, from tidal pools along the foreshore, out to the continental shelf, and then down to the abyssal depths.
Many organisms adapted to deep-water pressure cannot survive in the upperparts of the water column. The pressure difference can be very significant (approximately one atmosphere for each 10 metres of water depth).Because light is absorbed before it can reach deep ocean-water, the energy source for deep benthic ecosystems is often organic matter from higher up in the water column that drifts down to the depths. This dead and decaying matter sustains the benthic food chain; most organisms in the benthic zone are scavengers or detritivores.
The term benthos, coined by Haeckel in 1891, comes from the Greek noun βένθος "depth of the sea". Benthos is used in freshwater biology to refer to organisms at the bottom of freshwater bodies of water, such as lakes, rivers, and streams. There is also a redundant synonym, benthon.Blackwater (waste)
Blackwater in a sanitation context denotes wastewater from toilets, which likely contains pathogens. Blackwater can contain feces, urine, water and toilet paper from flush toilets. Blackwater is distinguished from greywater, which comes from household use other than toilets. Greywater results from washing food, clothing, dishes, as well as from showering or bathing.Blackwater and greywater are separated in "ecological buildings", such as autonomous buildings. Recreational vehicles often have separate holding tanks for greywater from showers and sinks, and blackwater from the toilet.Data storage tag
A data storage tag (DST), also sometimes known as an archival tag, is a data logger that uses sensors to record data at predetermined intervals. Data storage tags usually have a large memory size and a long lifetime. Most archival tags are supported by batteries that allow the tag to record positions for several years. Alternatively some tags are solar powered and allow the scientist to set their own interval; this then allows data to be recorded for significantly longer than battery-only powered tags.ETH Domain
The Domain of the Swiss Federal Institutes of Technology (ETH Domain, German: ETH-Bereich, French: Domaine des Écoles polytechniques fédérales) is a union of Swiss governmental universities and research institutions. It primarily consists of the following institutions:
Federal institutes of technologySwiss Federal Institute of Technology in Zurich (ETHZ)
Swiss Federal Institute of Technology in Lausanne (EPFL)Federal research institutesPaul Scherrer Institute (PSI)
Swiss Federal Laboratories for Materials Science and Technology (Empa)
Swiss Federal Institute of Aquatic Science and Technology (Eawag)
Swiss Federal Institute for Forest, Snow and Landscape Research (WSL)Competence centersCCEM (Energy & Mobility)
CCES (Environment & Sustainability)
CCMX (Materials Science & Technology)
NCCBI (Biomedical Imaging)Fish measurement
Fish measurement is the measuring of the length of individual fish and of various parts of their anatomy. These data are used in many areas of ichthyology, including taxonomy and fisheries biology.GIS and aquatic science
Geographic Information Systems (GIS) has become an integral part of aquatic science and limnology. Water by its very nature is dynamic. Features associated with water are thus ever-changing. To be able to keep up with these changes, technological advancements have given scientists methods to enhance all aspects of scientific investigation, from satellite tracking of wildlife to computer mapping of habitats. Agencies like the US Geological Survey, US Fish and Wildlife Service as well as other federal and state agencies are utilizing GIS to aid in their conservation efforts.
GIS is being used in multiple fields of aquatic science from limnology, hydrology, aquatic botany, stream ecology, oceanography and marine biology. Applications include using satellite imagery to identify, monitor and mitigate habitat loss. Imagery can also show the condition of inaccessible areas. Scientists can track movements and develop a strategy to locate locations of concern. GIS can be used to track invasive species, endangered species, and population changes.
One of the advantages of the system is the availability for the information to be shared and updated at any time through the use of web-based data collection.Limnology
Limnology ( lim-NOL-ə-jee; from Greek λίμνη, limne, "lake" and λόγος, logos, "knowledge"), is the study of inland aquatic ecosystems.
The study of limnology includes aspects of the biological, chemical, physical, and geological characteristics and functions of inland waters (running and standing waters, fresh and saline, natural or man-made). This includes the study of lakes, reservoirs, ponds, rivers, springs, streams, wetlands, and groundwater. A more recent sub-discipline of limnology, termed landscape limnology, studies, manages, and seeks to conserve these ecosystems using a landscape perspective, by explicitly examining connections between an aquatic ecosystem and its watershed. Recently, the need to understand global inland waters as part of the Earth System created a sub-discipline called global limnology. This approach considers processes in inland waters on a global scale, like the role of inland aquatic ecosystems in global biogeochemical cycles.Limnology is closely related to aquatic ecology and hydrobiology, which study aquatic organisms and their interactions with the abiotic (non-living) environment. While limnology has substantial overlap with freshwater-focused disciplines (e.g., freshwater biology), it also includes the study of inland salt lakes.Mariano Marcos State University
The Mariano Marcos State University is a multidisciplinary, state-funded institution of higher learning that serves the Ilocos Region and its surrounding regions in the Philippines.Minimum landing size
The minimum landing size (MLS) is the smallest fish measurement at which it is legal to keep or sell a fish. What the MLS is depends on the species of fish. Sizes also vary around the world, as they are legal definitions which are defined by the local regulatory authority. Commercial trawl and seine fisheries can control the size of their catch by adjusting the mesh size of their nets.
European Union – The European Fishery MLS applies to all EU member states.Morrisville State College
SUNY Morrisville (formerly Morrisville State College) is a public college with two locations in New York, one in Morrisville and one in Norwich. It is part of the State University of New York System. It offers 23 bachelor's degrees, 52 associate degrees, and three certificate programs, and is accredited by the Middle States Association of Colleges and Schools. The college is considered an Agriculture and Technology school. Programs of study include agriculture, animal science, equine, dairy, livestock, agriculture business, automotive, business, computing and information, design and engineering, brewing science, horticulture, environmental resources, aquatic science and aquaculture, renewable energy, equine, health and human performance, hospitality, and technology and society.
Recently the college announced the creation of a cannabis industry minor.Particle (ecology)
In marine and freshwater ecology, a particle is a small object. Particles can remain in suspension in the ocean or freshwater. However, they eventually settle (rate determined by Stokes' law) and accumulate as sediment. Some can enter the atmosphere through wave action where they can act as cloud condensation nuclei (CCN). Many organisms filter particles out of the water with unique filtration mechanisms (filter feeders). Particles are often associated with high loads of toxins which attach to the surface. As these toxins are passed up the food chain they accumulate in fatty tissue and become increasingly concentrated in predators (see bioaccumulation). Very little is known about the dynamics of particles, especially when they are re-suspended by dredging. They can remain floating in the water and drift over long distances. The decomposition of some particles by bacteria consumes a lot of oxygen and can cause the water to become hypoxic.Photic zone
The photic zone, euphotic zone (Greek for "well lit": εὖ "well" + φῶς "light"), or sunlight (or sunlit) zone is the uppermost layer of water in a lake or ocean that is exposed to intense sunlight. It corresponds roughly to the layer above the compensation point, i.e. depth where the rate of carbon dioxide uptake, or equivalently, the rate of photosynthetic oxygen production, is equal to the rate of carbon dioxide production, equivalent to the rate of respiratory oxygen consumption, i.e. the depth where net carbon dioxide assimilation is zero.
It extends from the surface down to a depth where light intensity falls to one percent of that at the surface, called the euphotic depth. Accordingly, its thickness depends on the extent of light attenuation in the water column. Typical euphotic depths vary from only a few centimetres in highly turbid eutrophic lakes, to around 200 meters in the open ocean. It also varies with seasonal changes in turbidity.
Since the photic zone is where almost all of the photosynthesis occurs, the depth of the photic zone is generally proportional to the level of primary production that occurs in that area of the ocean. About 90% of all marine life lives in the photic zone. A small amount of primary production is generated deep in the abyssal zone around the hydrothermal vents which exist along some mid-oceanic ridges.
The zone which extends from the base of the euphotic zone to about 200 metres is sometimes called the disphotic zone. While there is some light, it is insufficient for photosynthesis, or at least insufficient for photosynthesis at a rate greater than respiration. The euphotic zone together with the disphotic zone coincides with the epipelagic zone. The bottommost zone, below the euphotic zone, is called the aphotic zone. Most deep ocean waters belong to this zone.
The transparency of the water, which determines the depth of the photic zone, is measured simply with a Secchi disk. It may also be measured with a photometer lowered into the water.Ramsar site
A Ramsar site is a wetland site designated to be of international importance under the Ramsar Convention.The Convention on Wetlands, known as the Ramsar Convention, is an intergovernmental environmental treaty established in 1971 by UNESCO, which came into force in 1975. It provides for national action and international cooperation regarding the conservation of wetlands, and wise sustainable use of their resources.Ramsar identifies wetlands of international importance, especially those providing waterfowl habitat.
As of 2016, there were 2,231 Ramsar sites, protecting 214,936,005 hectares (531,118,440 acres), and 169 national governments are currently participating.Singapore-Delft Water Alliance
Singapore-Delft Water Alliance (SDWA) was a multi-national, interdisciplinary research Centre of Excellence for Water Knowledge involving PUB (Singapore), National University of Singapore and Deltares, established through an initiative of the National Research Foundation in Singapore. SDWA was hosted by National University of Singapore and provided a research home to scientists and engineers from all partner organizations. SDWA ceased to exist on the 1st of April 2014 after it successfully met all its Key Performance Indicators. The collaboration between NUS and Deltares is continued through NUSDeltares.Swiss Federal Institute of Aquatic Science and Technology
The Swiss Federal Institute of Aquatic Science and Technology (Eawag, German acronym for Eidgenössische Anstalt für Wasserversorgung, Abwasserreinigung und Gewässerschutz) is a Swiss water research institute and an internationally networked institution. As part of the Swiss Federal Institutes of Technology Domain, it is an institution of the Federal Department of Home Affairs of the Swiss Confederation. The Eawag is based in Dübendorf near Zurich and Kastanienbaum near Lucerne.
After its foundation in 1936 it concentrated on wastewater treatment and drinking water supplies. From these beginnings it has expanded into a multidiciplinary research institute with a focus on three primary research areas: water as a foundation of health and well-being, water as an essential factor in the functioning of our ecological systems, and strategies for the mitigation of water use conflicts. Nowadays, with a staff of over 500 employees, Eawag is actively engaged in research, teaching and consulting in all areas pertaining to water. Eawag's overall aim is to ensure the sustainable use of water resources and infrastructure and to harmonize the ecological, economic and social interests associated with bodies of water. In doing so, the Eawag plays an important role in bridging research and practice.