Your IP: United States Near: United States

Lookup IP Information

Previous 1 2 3 4 5 6 7 8 Next

Below is the list of all allocated IP address in - network range, sorted by latency.

ArcGIS Server website depicting submersed aquatic vegetation. Geographic Information Systems (GIS) is becoming 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. Contents 1 GIS and fish 2 GIS and macrophytes 3 See also 4 External links GIS and fish USGS sidescan radar image over base image from Army Corps of Engineers, indicating sturgeon location and river mile. In the past, GIS was not a practical source of analysis due to the difficulty in obtaining spatial data on habitats or organisms in underwater environments. With the advancement of radio telemetry, hydroacoustic telemetry and side-scan sonar biologists have been able to track fish species and create databases that can be incorporated into a GIS program to create a geographical representation. Using radio and hydroacoustic telemetry, biologists are able to locate fish and acquire relatable data for those sites, this data may include substrate samples, temperature, and conductivity. Side-scan sonar allows biologists to map out a river bottom to gain a representation of possible habitats that are used. These two sets of data can be overlaid to delineate the distribution of fish and their habitats for fish. This method has been used in the study of the pallid sturgeon. Over a period of time large amounts of data are collected and can be used to track patterns of migration, spawning locations and preferred habitat. Before, this data would be mapped and overlaid manually. Now this data can be entered into a GIS program and be layered, organized and analyzed in a way that was not possible to do in the past. Layering within a GIS program allows for the scientist to look at multiple species at once to find possible watersheds that are shared by these species, or to specifically choose one species for further examination. The US Geological Survey (USGS) in, cooperation with other agencies, were able to use GIS in helping map out habitat areas and movement patterns of pallid sturgeon. At the Columbia Environmental Research Center their effort relies on a customized ArcPad and ArcGIS, both ESRI (Environmental Systems Research Institute) applications, to record sturgeon movements to streamline data collection. A relational database was developed to manage tabular data for each individual sturgeon, including initial capture and reproductive physiology. Movement maps can be created for individual sturgeon. These maps help track the movements of each sturgeon through space and time. This allowed these researchers to prioritize and schedule field personnel efforts to track, map, and recapture sturgeon. GIS and macrophytes Map created from GIS database depicting the movements of individual sturgeon. Surveyed (left) and predicted (right) distributions of submersed aquatic vegetation distribution Upper Mississippi River in 1989. The survey data were from the land cover/land use geographic information created by the U.S. Geological Survey Upper Midwest Environmental Sciences Center on the basis of interpretation of aerial photography of 1989. Macrophytes are an important part of healthy ecosystems. They provide habitat, refuge, and food for fish, wildlife, and other organisms. Though natural occurring species are of great interest so are the invasive species that occur alongside these in our environment. GIS is being used by agencies and their respective resource managers as a tool to model these important macrophyte species. Through the use of GIS resource managers can assess the distributions of this important aspect of aquatic environments through a spatial and temporal scale. The ability to track vegetation change through time and space to make predictions about vegetation change are some of the many possibilities of GIS. Accurate maps of the aquatic plant distribution within an aquatic ecosystem are an essential part resource management. It is possible to predict the possible occurrences of aquatic vegetation. For example, the USGS has created a model for the American wild celery (Vallisneria americana) by developing a statistical model that calculates the probability of submersed aquatic vegetation. They established a web link to an Environmental Systems Research Institute (ESRI) ArcGIS Server website *Submersed Aquatic Vegetation Model to make their model predictions available online. These predictions for distribution of submerged aquatic vegetation can potentially have an effect on foraging birds by creating avoidance zones by humans. If it is known where these areas are, birds can be left alone to feed undisturbed. When there are years where the aquatic vegetation is predicted to be limited in these important wildlife habitats, managers can be alerted. Invasive species have become a great conservation concern for resource managers. GIS allows managers to map out plant locations and abundances. These maps can then be used to determine the threat of these invasive plants and help the managers decide on management strategies. Surveys of these species can be conducted and then downloaded into a GIS system. Coupled with this, native species can be included to determine how these communities respond with each other. By using known data of preexisting invasive species GIS models could predict future outbreaks by comparing biological factors. The Connecticut Agricultural Experiment Station Invasive Aquatic Species Program (CAES IAPP) is using GIS to evaluate risk factors. GIS allows managers to georeference plant locations and abundance. This allows for managers to display invasive communities alongside native species for study and management. See also This section is empty. You can help by adding to it. External links Smithsonian National Zoological Park Missouri River InfoLINK Fisheries and Aquatics Bulletin Columbia Environmental Research Center Geographical Information Systems (GIS) for Fish Conservation GIS and Fish Population Dynamics ArcNews Online THE CONNECTICUT AGRICULTURAL EXPERIMENT STATION INVASIVE AQUATIC PLANT PROGRAM (CAES IAPP) Using GIS to Map Invasive Aquatic Plants in Connecticut Lakes Upper Midwest Environmental Sciences Center Smart River GIS for Improved Decision Making  Aquatic ecosystems - general and freshwater components General Aquatic ecosystems · Acoustic ecology · Agent-based models · Algal bloom · Anoxic waters · Aquatic adaptation · Aquatic animals · Aquatic biodiversity research · Aquatic biomonitoring · Aquatic insects · Aquatic layers · Aquatic mammals · Aquatic plants · Aquatic predation · Aquatic respiration · Aquatic science · Aquatic toxicology · Benthos · Bioluminescence · Biomass · Cascade effect · Colored dissolved organic matter · Dead zone · Ecohydrology · Eutrophication · Fisheries science · Food chain · Food web · GIS and aquatic science · Hydrobiology · Hypoxia · Isotope analysis · Microbial ecology · Microbial food web · Microbial loop · Nekton · Neuston · Particle · Photic zone · Phytoplankton · Plankton · Productivity · Ramsar Convention · Schooling · Sediment trap · Siltation · Spawning · Substrate · Thermal pollution · Trophic level · Water column · Zooplankton · More... Freshwater Freshwater ecosystems · Brackish marsh · Freshwater biology · Freshwater biomes · Freshwater fish · Freshwater marsh · Freshwater swamp forest · Hyporheic zone · Lake ecosystems · Landscape limnology · Limnology · Lake stratification · Macrophyte · Pond · Fish pond · Rheotaxis · River ecosystems · Stream bed · Stream pool · Trophic state index · Upland and lowland · Water garden · Wetland · Environmental quality · More... Ecoregions Freshwater ecoregions · List of freshwater ecoregions · Marine ecoregions · List of marine ecoregions · Ecology of the Everglades · Ecology of the San Francisco Estuary · Ecosystem of the North Pacific Subtropical Gyre · Freshwater ecology of Maharashtra  Aquatic ecosystems - marine components Marine Marine ecosystem · f-ratio · Iron fertilization · Iron Hypothesis · Large marine ecosystem · Marine biology · Marine chemistry · Marine snow · Ocean nourishment · Oceanic physical-biological process · Thorson's rule · Upwelling · Whale fall · More... Marine life forms Census of Marine Life · Coastal fish · Coral reef fish · Deep sea communities · Deep sea creature · Deep sea fish · Deep water corals · Demersal fish · Marine bacteriophage · Marine invertebrates · Marine larval ecology · Marine mammal · Marine reptile · Marine vertebrate · Paradox of the plankton · Pelagic fish · Seabird · Seashore wildlife · Wild fisheries Marine habitats Bay mud · Black smokers · Coastal biogeomorphology · Cold seeps · Coral reefs · Davidson Seamount · Estuaries · Intertidal ecology · Intertidal wetland · Kelp forests · Hydrothermal vent · Lagoons · Mangroves · Marine biomes · Marine habitats · Mudflat · Rocky shores · Salt marshes · Seagrass meadows · Sponge reefs · Tide pools Issues Ecological values of mangrove · Fisheries and climate change · HERMIONE · Marine conservation · Marine conservation activism · Marine pollution · Marine Protected Area  Fisheries science and wild fisheries Fisheries science Population dynamics of fisheries · Shifting baseline · Fish stock · Fish mortality · Stock assessment · Fish measurement · Fish counter · Data storage tag · Biomass · Fisheries acoustics · Acoustic tag · GIS and aquatic science · EcoSCOPE · Age class structure · Trophic level · Trophic cascades · Match/mismatch hypothesis · Fisheries and climate change · Marine biology · Aquatic ecosystems · Bioeconomics · Ecopath · FishBase · Census of Marine Life · OSTM · Fisheries databases · Institutes · Fisheries scientists Wild fisheries Ocean fisheries · Diversity of fish · Coastal fish · Coral reef fish · Demersal fish · Forage fish · Pelagic fish · Cod fisheries · Crab fisheries · Eel fisheries · Krill fisheries · Kelp fisheries · Lobster fisheries · Shrimp fisheries · Eel ladder · Fish ladder · Fish screen · Migration · Sardine run · Shoaling and schooling · Marine habitats · Marine snow · Water column · Upwelling · Humboldt current · Algal blooms · Dead zones · Fish kill  Fisheries management, sustainability and conservation Management Fisheries management · Monitoring control and surveillance · Vessel monitoring system · Fishery Resources Monitoring System · Catch reporting · Fisheries observer · Illegal, unreported and unregulated fishing · Fisheries organizations Quotas Catch share · Individual fishing quota · Minimum landing size · Discards · Bycatch · Cetacean bycatch · Turtle excluder device · Shrimp-Turtle case · EU quotas · EU MLS · Exclusive Economic Zone Sustainability Sustainable fisheries · Maximum sustainable yield · Sustainable seafood · Overfishing · Environmental effects of fishing · Fishing down the food web · Destructive fishing practices · Future of Marine Animal Populations · The Sunken Billions · End of the Line Conservation Marine Protected Area · Marine reserve · Marine conservation · Marine conservation activism · Salmon conservation · Grey nurse shark conservation · Shark sanctuary Organisations Marine Stewardship Council · Friend of the Sea · SeaChoice · Seafood Watch · Oceana · Sea Around Us Project · WorldFish Center · Defying Ocean's End · HERMIONE · PROFISH · International Seafood Sustainability Foundation · Sea Shepherd Conservation Society · Greenpeace Related issues Marine pollution · Mercury in fish · Shark finning List of fishing topics by subject · Index of fishing articles · Fisheries glossary