Estuaries: A partially enclosed body of water, and its surrounding coastal habitats, where saltwater from the ocean mixes with fresh water from rivers or streams. The resulting mixture of seawater and fresh water is called brackish water and its salinity can range from 0.5 to 35 ppt. (accessed http://oceanservice.noaa.gov/education/kits/estuaries/estuaries01_whatis.html)Rivers: Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).Seawater: The salinated water of OCEANS AND SEAS that provides habitat for marine organisms.Salinity: Degree of saltiness, which is largely the OSMOLAR CONCENTRATION of SODIUM CHLORIDE plus any other SALTS present. It is an ecological factor of considerable importance, influencing the types of organisms that live in an ENVIRONMENT.Geologic Sediments: A mass of organic or inorganic solid fragmented material, or the solid fragment itself, that comes from the weathering of rock and is carried by, suspended in, or dropped by air, water, or ice. It refers also to a mass that is accumulated by any other natural agent and that forms in layers on the earth's surface, such as sand, gravel, silt, mud, fill, or loess. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1689)Ostreidae: A family of marine mollusks in the class BIVALVIA, commonly known as oysters. They have a rough irregular shell closed by a single adductor muscle.DelawareBays: An area of water mostly surrounded by land, usually smaller than a gulf, and affording access to the sea.Fresh Water: Water containing no significant amounts of salts, such as water from RIVERS and LAKES.Ecological Parameter Monitoring: Ongoing collection, analysis, and interpretation of ecological data that is used to assess changes in the components, processes, and overall condition and functioning of an ECOSYSTEM.Crassostrea: A genus of oysters in the family OSTREIDAE, class BIVALVIA.Ecosystem: A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)Pfiesteria piscicida: A dinoflagellate with a life cycle that includes numerous flagellated, amoeboid, and encysted stages. Both the flagellated and amoeboid forms produce toxins which cause open wounds on fish. Pfiesteria piscicida feeds on tissue sloughed from these wounds, as well as on bacteria and algae. It is found in Atlantic estuaries of the United States.Water Pollutants, Chemical: Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water.Rhizophoraceae: A plant family of the order Rhizophorales, subclass Rosidae, class Magnoliopsida, that includes mangrove trees.Avicennia: A plant genus of the family Acanthaceae. Members contain NAPHTHOQUINONES. Black mangroves (common name for the genus) are distinguished from other mangroves by their spike-like aerial roots called pneumatophores that project from the soil or water surrounding the plants.Water Pollutants: Substances or organisms which pollute the water or bodies of water. Use for water pollutants in general or those for which there is no specific heading.Water Microbiology: The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.Tidal Waves: Water waves caused by the gravitational interactions between the EARTH; MOON; and SUN.Environmental Monitoring: The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment.Fisheries: Places for cultivation and harvesting of fish, particularly in sea waters. (from McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Oceans and Seas: A great expanse of continuous bodies of salt water which together cover more than 70 percent of the earth's surface. Seas may be partially or entirely enclosed by land, and are smaller than the five oceans (Atlantic, Pacific, Indian, Arctic, and Antarctic).Seasons: Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Water Movements: The flow of water in enviromental bodies of water such as rivers, oceans, water supplies, aquariums, etc. It includes currents, tides, and waves.Wetlands: Environments or habitats at the interface between truly terrestrial ecosystems and truly aquatic systems making them different from each yet highly dependent on both. Adaptations to low soil oxygen characterize many wetland species.Shellfish: Aquatic invertebrates belonging to the phylum MOLLUSCA or the subphylum CRUSTACEA, and used as food.Water Pollution: Contamination of bodies of water (such as LAKES; RIVERS; SEAS; and GROUNDWATER.)Phytoplankton: Free-floating minute organisms that are photosynthetic. The term is non-taxonomic and refers to a lifestyle (energy utilization and motility), rather than a particular type of organism. Most, but not all, are unicellular algae. Important groups include DIATOMS; DINOFLAGELLATES; CYANOBACTERIA; CHLOROPHYTA; HAPTOPHYTA; CRYPTOMONADS; and silicoflagellates.Cytophaga: A genus of gram-negative gliding bacteria found in SOIL; HUMUS; and FRESHWATER and marine habitats.Eutrophication: The enrichment of a terrestrial or aquatic ECOSYSTEM by the addition of nutrients, especially nitrogen and phosphorus, that results in a superabundant growth of plants, ALGAE, or other primary producers. It can be a natural process or result from human activity such as agriculture runoff or sewage pollution. In aquatic ecosystems, an increase in the algae population is termed an algal bloom.Copepoda: A huge subclass of mostly marine CRUSTACEA, containing over 14,000 species. The 10 orders comprise both planktonic and benthic organisms, and include both free-living and parasitic forms. Planktonic copepods form the principle link between PHYTOPLANKTON and the higher trophic levels of the marine food chains.Population Density: Number of individuals in a population relative to space.Brachyura: An infraorder of chiefly marine, largely carnivorous CRUSTACEA, in the order DECAPODA, including the genera Cancer, Uca, and Callinectes.Dolphins: Mammals of the families Delphinidae (ocean dolphins), Iniidae, Lipotidae, Pontoporiidae, and Platanistidae (all river dolphins). Among the most well-known species are the BOTTLE-NOSED DOLPHIN and the KILLER WHALE (a dolphin). The common name dolphin is applied to small cetaceans having a beaklike snout and a slender, streamlined body, whereas PORPOISES are small cetaceans with a blunt snout and rather stocky body. (From Walker's Mammals of the World, 5th ed, pp978-9)MaineOregonBiodiversity: The variety of all native living organisms and their various forms and interrelationships.Crenarchaeota: A kingdom in the domain ARCHAEA comprised of thermoacidophilic, sulfur-dependent organisms. The two orders are SULFOLOBALES and THERMOPROTEALES.Kelp: Large, robust forms of brown algae (PHAEOPHYCEAE) in the order Laminariales. They are a major component of the lower intertidal and sublittoral zones on rocky coasts in temperate and polar waters. Kelp, a kind of SEAWEED, usually refers to species in the genera LAMINARIA or MACROCYSTIS, but the term may also be used for species in FUCUS or Nereocystis.Bivalvia: A class in the phylum MOLLUSCA comprised of mussels; clams; OYSTERS; COCKLES; and SCALLOPS. They are characterized by a bilaterally symmetrical hinged shell and a muscular foot used for burrowing and anchoring.BrazilMid-Atlantic Region: A geographical area of the United States comprising the District of Columbia, Delaware, Maryland, New Jersey, New York, and Pennsylvania.Geography: The science dealing with the earth and its life, especially the description of land, sea, and air and the distribution of plant and animal life, including humanity and human industries with reference to the mutual relations of these elements. (From Webster, 3d ed)Vibrio parahaemolyticus: A species of bacteria found in the marine environment, sea foods, and the feces of patients with acute enteritis.Haplosporida: A phylum of EUKARYOTES in the RHIZARIA group. They are small endoparasites of marine invertebrates. Spores are structurally complex but without polar filaments or tubes.Betaproteobacteria: A class in the phylum PROTEOBACTERIA comprised of chemoheterotrophs and chemoautotrophs which derive nutrients from decomposition of organic material.Zooplankton: Minute free-floating animal organisms which live in practically all natural waters.Plankton: Community of tiny aquatic PLANTS and ANIMALS, and photosynthetic BACTERIA, that are either free-floating or suspended in the water, with little or no power of locomotion. They are divided into PHYTOPLANKTON and ZOOPLANKTON.Nitrogen Compounds: Inorganic compounds that contain nitrogen as an integral part of the molecule.Gastropoda: A class in the phylum MOLLUSCA comprised of SNAILS and slugs. The former have coiled external shells and the latter usually lack shells.Aquaculture: Cultivation of natural faunal resources of water. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Atlantic OceanConservation of Natural Resources: The protection, preservation, restoration, and rational use of all resources in the total environment.Human Activities: Activities performed by humans.Population Dynamics: The pattern of any process, or the interrelationship of phenomena, which affects growth or change within a population.Cladocera: A suborder of CRUSTACEA, order Diplostraca, comprising the water fleas. They are benthic filter feeders that consume PHYTOPLANKTON. The body is laterally compressed and enclosed in a bivalved carapace, from which the head extends.Fishes: A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.
Insights into the bacterial diversity in a freshwater-deprived permanently open Eastern Cape estuary, using 16S rRNA...... in the lower reaches of the estuary (Fig. 2B). Again, the salinity values recorded in the upper reaches of the estuary were ... Insights into the bacterial diversity in a freshwater-deprived permanently open Eastern Cape estuary, using 16S rRNA ... were more prevalent at the mouth of the estuary. The occurrence of cyanobacteria in the Kariega Estuary, particularly in the ... HODGSON AN (1987) Distribution and abundance of macrobenthic fauna of the Kariega Estuary. S. Afr. J. Zool. 22 153-162. [ Links ...
Search Places | National TrustDiscover dramatic cliffs and the tranquil Yealm Estuary. Open today. View all opening times ...
USGS 02300009 MANATEE RIVER AT DEVILS ELBOW NEAR FT HAMER FLEstuary Site. DESCRIPTION:. Latitude 27°31'14", Longitude 82°24'07" NAD27. Manatee County, Florida, Hydrologic Unit 03100202. ...
Resource development and management - Massey UniversityPartnerships for healthy estuaries. Coastal ecosystems are incredibly important, but they are adversely affected by changes in ... A Massey University project looks at empowering iwi and hapū to be strong partners in the co-management of healthy estuaries. ...
What adaptations do plants and animals have in saltwater biomes? | Reference.comWhat are some plant adaptations in estuaries?. A: Adaptations of plants living in estuaries include the ability to survive in ...
What aquatic environment will not freeze in winterWhy is an estuary such a productive aquatic environment? Esturies form a common habitat for marine and riverine animals.They ...
San Francisco-Oakland Bay Bridge - WikipediaStraits and estuaries. Sacramento-San Joaquin River Delta. Carquinez Strait. Oakland Estuary. Raccoon Strait. ...
Sewage Flow Monitoring News on Environmental XPRTEstuary research project highlights advantages of continuous monitoring Researchers from the south coast of England have ...
The Genetic Basis of Smoltification-Related Traits in Oncorhynchus mykiss | GeneticsEstuaries 1A: 13-25. ...
RFA Maine (1924) - WikipediaLeonardo da Vinci was built for Società di Navigazione Transatlantica Italiana. Her port of registry was Genoa. The Italian Official Number 1306 and Code Letters NVJA were allocated. In 1934, her Code Letters were changed to IBPS. In December 1929, Leonardo da Vinci was caught in a storm off Cape Finisterre, Spain whilst transporting a number of valuable Italian works of art which were to be exhibited at Burlington House, Picadilly, London. She was accompanied on her voyage by the Marina Militare tug Teso. The cargo was insured for £14,000,000. Works of art on board included the painting The Birth of Venus by Botticelli, the three Davids, sculptures by Donatello, Michelangelo and Verrocchio. Another sculpture was Virgin and Child by Jacopo della Quercia. Leonardo da Vinci departed London on 12 April 1930 to return the artworks to Italy.. During the Second Italo-Abyssinian War, Leonardo da Vinci was used as a troopship in March 1935. On 28 February, Leonardo da Vinci was ...
Remote sensing monitoring of ocean colour in Pearl River estuary: Ingenta ConnectThe study attempts to provide additional understanding of the long-term evolution of water quality in the Pearl River estuary and Hong Kong coastal areas by monitoring the ocean colour from remote sensing images. The extensively inter-connected river network of Pearl River estuary has a large catchment area and its environmental deterioration due to rapid economic growth is significant. The data received by Landsat satellites, over a time period of more than 20 years, were used to evaluate the evolution of water clarity. The study shows the historical varying of sea colour in these areas and image processing methods for extracting the ocean colour features of Landsat images are suggested. The algorithm of 'Gradient Transition' was used to calibrate the result images and the comparing method was used to process and analyse remote sensing images of Case 2 water ...
Secret Skagit Birding Adventure: Skagit River EstuaryYou'll stop for a yummy picnic on Goat Island located across from Deception Pass where you can explore and climb to an abandoned Fort, a leftover post from WWII. A huge cistern is at the top of the island where a vast variety of birds visit on their migratory route to both bathe and drink the fresh water. We'll meander on through the channel and you'll disembark from your inflatable raft in LaConner.Stay and visit LaConner, or we can take you through the legendary and spectacular display of tulip fields in West Mt. Vernon. You'll view the beautiful gardens of tulips and many other floral species in bloom ...
Sand in the Dee Estuary at low tide (C) Peter Aikman :: Geograph Britain and IrelandAt low tide, I am standing south of the stream shown on the map, on the sandspit which extends roughly E. then S.E. from the Point of Ayr. Looking up the estuary, the low hills in the right distance are around Holywell. Another... more
Resource Library | Narragansett Bay Estuary ProgramThis is a searchable library of scientific articles, reports, and research projects in progress related to Narragansett Bay and its watershed. The publications include projects funded in by the Narragansett Bay Estuary Program from 1987 to present (listed below as "NBEP"), other research or projects developed by Program partners and other scientists and environmental professionals (listed below as "Partner"), and research that is underway (listed below as "In Progress").. *If you cannot find a publication you are looking for, or would like to have a project included in this library, please contact us at firstname.lastname@example.org. ...
Citation Machine: Estuaries And Coasts format citation generator for multivolume workCitation Machine™ helps students and professionals properly credit the information that they use. Cite your multivolume work in Estuaries and Coasts format for free.
Premier Estuary 1500mm x 1000mm Corner Bath & Panel Right HandThe stunning Estuary Right Hand Corner Bath and Panel by Premier is a practical yet stylish addition to any bathroom, allowing you to bathe in absolute comfort, every time.
Gallery: The Bay Today | Narragansett Bay Estuary ProgramExplore the gallery to see how the Bay has changed over time to present day settings. To see the history of the Bay, visit our other gallery.. *If you have any media that you would like us to add, please contact us.. ...
Ancillary Reagents | Dharmacon5X siRNA Buffer is appropriate for resuspension and long-term storage of any short, double-strand or single-strand synthetic RNA molecule, including modified and unmodified siRNAs, microRNA Mimics and microRNA Hairpin Inhibitors. Dilute with RNase-free water prior to use ...
Rogerstown Estuary: Rogerstown Estuary (Irish: Inbhear Bhaile Roiséir) is an estuary in Ireland. It is situated just north of the Donabate-Portrane peninsula, and also south of Rush, on Ireland's east coast about north of Dublin.List of rivers of Brazil: This is a list of rivers in Brazil.Deep chlorophyll maximum: A deep chlorophyll maximum (DCM) is a subsurface maximum in the concentration of chlorophyll in the ocean or a lake. A DCM is not always present--sometimes there is more chlorophyll at the surface than at any greater depth--but it is a common feature of most aquatic ecosystems.Soil salinity control: Soil salinity control relates to controlling the problem of soil salinity and reclaiming salinized agricultural land.Nankai Trough gas hydrate site: Nankai Methane Hydrate Site (or Japanese Methane Hydrate R&D Program at Nankai, Nankai Trough Methane Hydrate Site) is located in the Nankai Trough, Japan.Delaware lunar sample displays: The Delaware lunar sample displays are two commemorative plaques consisting of small fragments of moon specimen brought back with the Apollo 11 and Apollo 17 lunar missions and given in the 1970s to the people of the state of Delaware by United States President Richard Nixon as goodwill gifts.Hudson Bay Mountain: Hudson Bay Mountain is an ultra prominent peak located above Smithers, British Columbia, Canada. It is the location of the Hudson Bay Mountain Resort (formerly Ski Smithers) ski resort.Bulloo-Bancannia drainage basin: The Bulloo-Bancannia drainage basin is a drainage basin that covers part of western Queensland and New South Wales. It is adjacent to the much larger Lake Eyre basin.Structural encroachment: A structural encroachment is a concept in American real property law, in which a piece of real property hangs from one property over the property line of another landowner's premises. The actual structure that encroaches might be a tree, bush, bay window, stairway, steps, stoop, garage, leaning fence, part of a building, or other fixture.Portuguese oyster: The Portuguese oyster, Crassostrea angulata, is a species of oyster found in the southwest Iberian Peninsula, closely related to the Pacific oyster. Although first identified as a native European species, genetic studiesMichinina S and Rebordinos L.EcosystemPfiesteria: Pfiesteria is a genus of heterotrophic dinoflagellates that has been associated with harmful algal blooms and fish kills. Pfiesteria complex organisms (PCOs) were claimed to be responsible for large fish kills in the 1980s and 1990s on the coast of North Carolina and in tributaries of the Chesapeake Bay.Kandelia obovata: Kandelia obovata (Traditional Chinese: 水筆仔、秋茄樹) is a species of plant in the Rhizophoraceae family, i.e.AvicenniaFecal coliform: A fecal coliform (British: faecal coliform) is a facultatively anaerobic, rod-shaped, gram-negative, non-sporulating bacterium. Coliform bacteria generally originate in the intestines of warm-blooded animals.Tidal Wave (Sub Focus song)Sustainable Fisheries Act of 1996: The Sustainable Fisheries Act of 1996 is an amendment to the Magnuson-Stevens Fishery Conservation and Management Act, a law governing the management of marine fisheries in the United States. Another major amendment to this legislation was later made under the Magnuson-Stevens Fishery Conservation and Management Reauthorization Act of 2006.Anoxic event: Oceanic anoxic events or anoxic events (anoxia conditions) refer to intervals in the Earth's past where portions of oceans become depleted in oxygen (O2) at depths over a large geographic area. During some of these events, euxinia develops - euxinia refers to anoxic waters that contain hydrogen sulfide.Four Seasons Baltimore and Residences: Four Seasons Hotel Baltimore is currently a 22 story highrise hotel complex building which opened on November 14, 2011. The building's construction began back in 2007 and went through several changes.Hydraulic action: Hydraulic action is erosion that occurs when the motion of water against a rock surface produces mechanical weathering. Most generally, it is the ability of moving water (flowing or waves) to dislodge and transport rock particles.California coastal salt marsh: California's coastal salt marsh is a wetland plant community that occurs sporadically along the Pacific Coast from Humboldt Bay to San Diego. This salt marsh type is found in bays, harbors, inlets, and other protected areas subject to tidal flooding.Shellfish Association of Great BritainUnited States regulation of point source water pollution: Point source water pollution comes from discrete conveyances and alters the chemical, biological, and physical characteristics of water. It is largely regulated by the Clean Water Act (CWA) of 1972.PhytoplanktonCytophaga: Cytophaga is a genus of Gram-negative, gliding, rod-shaped bacteria.Eutrophication: Eutrophication (Greek: eutrophia—healthy, adequate nutrition, development; ) or more precisely hypertrophication, is the ecosystem's response to the addition of artificial or natural nutrients, mainly phosphates, through detergents, fertilizers, or sewage, to an aquatic system.Schindler, David and Vallentyne, John R.Ellobiopsis: Ellobiopsis is a genus of alveolae parasitic protozoa.Threshold host density: Threshold host density (NT), in the context of wildlife disease ecology, refers to the concentration of a population of a particular organism as it relates to disease. Specifically, the threshold host density (NT) of a species refers to the minimum concentration of individuals necessary to sustain a given disease within a population.Paramoeba: Paramoeba is a genus of common parasites, including species that can cause infection in fish, crabs (including the "blue crab", Callinectes sapidus), sea urchins and others.Taiji dolphin drive hunt: The Taiji dolphin drive hunt is a dolphin drive hunt that takes place in Taiji, Wakayama in Japan every year from September to March. According to the Japanese Fisheries Research Agency, 1,623 dolphins were caught in Wakayama Prefecture in 2007 for human consumption or resale to dolphinariums, and most of these were caught at Taiji.Augusta Arsenal: The Augusta Arsenal was a 19th-century fortification in Augusta, Georgia. Established in 1816 and initially completed on the Georgia bank of the Savannah River in 1819, it was moved to the former Belle Vue estate in the Summerville neighborhood of Augusta in 1827 due to health concerns after several fever epidemics.List of waterfalls in Oregon: There are at least 238 waterfalls in the U.S.Alliance for Zero Extinction: Formed in 2000 and launched globally in 2005, the Alliance for Zero Extinction (AZE) comprises 100 non-governmental biodiversity conservation organizations working to prevent species extinctions by identifying and safeguarding sites where species evaluated to be Endangered or Critically Endangered under International Union for Conservation of Nature (IUCN) criteria only exist at one location on earth."Zero Extinction - Home.Lessonia nigrescens: Lessonia nigrescens, the grey weed or giant grey weed, is a South American kelp species in the genus Lessonia.Razor strop: A razor strop (or razor strap) is a flexible strip of leather or canvas used to straighten and polish the blade of a straight razor, a knife, or a woodworking tool like a chisel. Unlike honing or sharpening a blade, in which a whetstone removes metal bent out of alignment from the blade's edge, stropping the blade re-aligns the indentations without removing any material.University of CampinasCumberland Farms: Cumberland Farms is a regional chain of convenience stores based in Framingham, Massachusetts, and operating primarily in New England, portions of the Mid-Atlantic region of the United States, and Florida. Cumberland Farms operates roughly 600 retail stores, gas stations, and a support system including petroleum and grocery distribution operations in 11 states, including Connecticut, Delaware, Florida, Massachusetts, Maine, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont.Health geography: Health geography is the application of geographical information, perspectives, and methods to the study of health, disease, and health care.Vibrio parahaemolyticus: Vibrio parahaemolyticus is a curved, rod-shaped, Gram-negative bacterium found in brackish saltwater, which, when ingested, causes gastrointestinal illness in humans. V.Haplosporidium nelsoniCandidatus Accumulibacter: Candidatus Accumulibacter is an unclassified group of Betaproteobacteria that currently contains only a single member, Candidatus Accumulibacter Phosphatis. C.Continuous Plankton Recorder: The Continuous Plankton Recorder (CPR) survey is one of the longest running marine biological monitoring programmes in the world. Started in 1931 by Sir Alister Hardy, the CPR has provided marine scientists with their only measure of plankton communities on a pan-oceanic scale.Nitrogen trichlorideRespiratory system of gastropods: The respiratory system of gastropods varies greatly in form. These variations were once used as a basis for dividing the group into subclasses.Aquaculture of sea sponges: Sea sponge aquaculture is the process of farming sea sponges under controlled conditions. It has been conducted in the world's oceans for centuries using a number of aquaculture techniques.In Memory of Celtic Frost: In Memory of... Celtic Frost is a Celtic Frost tribute album released in 1996.Meramec Conservation AreaAppropriation (By Any Other Name): June 13, 2005Matrix population models: Population models are used in population ecology to model the dynamics of wildlife or human populations. Matrix population models are a specific type of population model that uses matrix algebra.MoinaBaltic sculpin: The Baltic sculpinBaltic sculpin (Cottus microstomus) at EOL (Cottus microstomus) is a species of sculpin, a European freshwater fish in the Cottidae family. It is widespread in the Dniester drainage (Black Sea basin), Odra and Vistula drainages (southern Baltic basin), most likely extending further east to Gulf of Finland.
(1/71) Biofouling growth in cold estuarine waters and evaluation of some chitosan and copper anti-fouling paints.
(2/71) High-throughput isotopic analysis of RNA microarrays to quantify microbial resource use.
(3/71) Identification of a novel cyanobacterial group as active diazotrophs in a coastal microbial mat using NanoSIMS analysis.
(4/71) An ovary transcriptome for all maturational stages of the striped bass (Morone saxatilis), a highly advanced perciform fish.
(5/71) Archaea of the Miscellaneous Crenarchaeotal Group are abundant, diverse and widespread in marine sediments.
(6/71) Behaviour of Sotalia guianensis (van Beneden, 1864) (Cetacea, Delphinidae) and ethnoecological knowledge of artisanal fishermen from Canavieiras, Bahia, Brazil.
(7/71) Estuarine and early-marine survival of transported and in-river migrant Snake River spring Chinook salmon smolts.
(8/71) Historical ecology with real numbers: past and present extent and biomass of an imperilled estuarine habitat.
Historic baselines are important in developing our understanding of ecosystems in the face of rapid global change. While a number of studies have sought to determine changes in extent of exploited habitats over historic timescales, few have quantified such changes prior to late twentieth century baselines. Here, we present, to our knowledge, the first ever large-scale quantitative assessment of the extent and biomass of marine habitat-forming species over a 100-year time frame. We examined records of wild native oyster abundance in the United States from a historic, yet already exploited, baseline between 1878 and 1935 (predominantly 1885-1915), and a current baseline between 1968 and 2010 (predominantly 2000-2010). We quantified the extent of oyster grounds in 39 estuaries historically and 51 estuaries from recent times. Data from 24 estuaries allowed comparison of historic to present extent and biomass. We found evidence for a 64 per cent decline in the spatial extent of oyster habitat and an 88 per cent decline in oyster biomass over time. The difference between these two numbers illustrates that current areal extent measures may be masking significant loss of habitat through degradation. (+info)
- We conclude that pyrosequencing provides a versatile and efficient tool for assessing the microbial diversity in the Kariega Estuary and propose that this technology may provide valuable information on the ecosystem functioning and health of aquatic ecosystems. (scielo.org.za)
- Why is an estuary such a productive aquatic environment? (answers.com)