tagged in Biological News

Tall tale of giant stingray circles the globe

... reports, it is unknown if this fish, which was tagged and released in central Thailand on January 28, ... pounds. An even slightly larger fish than the one tagged would almost certainly be a world record ... underwater listening devices designed to detect tagged fish. Hogan and his team ...

1,000 tags reveal mysteries of giant bluefin tuna

... fish, which measured 10 feet in length, was tagged by a scientific team from the Tag-A-Giant (TAG; ... months or years later a fisherman catches the tagged tuna, the fisherman receives a handsome reward ... recorded to date was from a fish caught, tagged and released in North Carolina that over the ...

Scientists achieve first tracking of salmon from headwaters in Rockies through Pacific to Alaska

... coasts. Now for the first time they have tagged and directly tracked small juvenile Pacific ... Fraser Rivers. Among the many studied, two tagged juveniles survived a 2,500 km trip that took more ... The 1,000 tagged juvenile salmon were followed via an extensive ...

Research challenges conventional notions about salmon survival

... marine coasts. Now for the first time they have tagged and directly tracked small juvenile Pacific ... Rivers, and followed their journeys. The 1,000 tagged juvenile salmon were followed via an extensive ... in the rivers and ocean capture signals when a tagged fish passes by, akin to an electronic toll booth ...

Signals from the Atlantic salmon highway

... answers. Thirty of 150 Atlantic salmon smolts tagged by NOAA's Northeast Fisheries Science Center ... the coastal network in Penobscot Bay. Once the tagged fish swim near passive acoustic receivers on the ... research vessels tending the array. The first tagged salmon crossed the Halifax line in early June. ...

UNH researchers tag first-ever free-swimming leatherback turtles in New England

... University of New Hampshire researchers have tagged one male and two female leatherback turtles off ... are the first free-swimming leatherbacks ever tagged in New England. The 700 800-pound leatherback turtles, an endangered species, were tagged July 17, 26 and 29 with GPS-linked satellite tags ...

Unveiling the underwater ways of the white shark

... shelf off California. The team also has tagged thresher sharks and blue sharks. Sharks are a ... sightseers. Jorgensen and his colleagues have tagged more than 100 white sharks along the central ... exhibit an urge to roam. Through tracking the tagged sharks, the TOPP team has found two distant ...

Marine scientists warn human safety, prosperity depend on better ocean observing system

... that journey into the open, deep ocean have been tagged by project TOPP (Tagging of Pacific Palagics), ... the oceans the animals inhabit. The 22 species tagged include elephant seals, white sharks, leatherback ... detections of the movements and survival of the tagged animals. CoML Chief Scientist Ron ODor says ...

Human safety, prosperity depend on better ocean observing system: Scientists

... that journey into the open, deep ocean have been tagged by project TOPP (Tagging of Pacific Palagics), ... the oceans the animals inhabit. The 22 species tagged include elephant seals, white sharks, leatherback ... detections of the movements and survival of the tagged animals. CoML Chief Scientist Ron ODor says ...

CSHL scientists harness logic of 'Sudoku' math puzzle to vastly enhance genome-sequencing capability

... as multiplexing. In previous multiplexing approaches, scientists first tagged each sample with a barcode a short string of DNA letters known as ... instead of tagging the individual samples within each pool, the scientists tagged each pool as a whole with one barcode. "Since we know which pool contains ...

TRAPping proteins that work together inside living cells

... The team engineered a tag in the C-terminus and cultured bacteria with the tagged RNA polymerase. After adding TRAP to the cells and giving it time to find ... Molecular Sciences Laboratory on the PNNL campus. They found that the tagged protein, as expected, interacts with many other proteins, for example ...

New tool isolates RNA within specific cells

... type within a tissue. Only newly generated RNA in this cell type is then tagged and isolated. "By analyzing RNA from different cell types, we can ... the nucleotide analog 4-thiouracil, the UPRT enzyme caused RNA to become tagged with thiouracil (TU), allowing the "TU-tagged" RNA to be purified from ...

UNH researchers track lobster migrations to improve population estimates

... creatures they find in their traps. In many cases, lobstermen who capture tagged lobsters will call Goldstein to report the tag number and location. In ... stations hold special ultrasonic receivers that can identify and record tagged lobsters moving within a 400-meter radius of the equipment. For example, ...

Salmon smolt survival similar in Columbia and Fraser rivers

... on the West Coast. Acoustic telemetry allows the signals emitted from tagged fish to be picked up by underwater hydrophones in salt water, as well as ... are bigger, to pick up a signal from greater distance. The researchers tagged between 300 and 600 fish annually during a four-year period. The ...

New technique yields more detailed picture of chromatin structure

... methods interfere with another step in the imaging process: the use of tagged antibodies to label key components of the cells. These antibodies, which target and latch on to specific proteins in the cell, can be tagged with fluorescent labels for detection in light microscopy, or with metal ...

Deep-sea sharks wired for sound

... Deep-sea sharks have been tagged and tracked and their habitats precisely mapped in world-first research to ... were also used to estimate fish abundance. The sharks were caught and tagged from the South Australian Research and Development Institute (SARDI) ...

Biomagnetics developed for use in new breast cancer tests

... on their surface called HER2. We use a solution of HER2 antibodies, tagged with magnetic nanoparticles, to stain the tissue sample. Using the HistoMag we can detect the quantity of tagged antibodies which attach themselves to the HER2 protein, which in turn ...

Astronomy technology brings nanoparticle probes into sharper focus

... photometry software that provides more precise images of single molecules tagged with nanoprobes, particles specially designed to bind with a certain type ... could be used to clarify other types of nanoparticle probes, including tagged particles or molecules. The research is detailed in this week's online ...

To save or savor? It's decision time for Atlantic bluefin tuna

... population back. The TAG team's research has shown that bluefin tuna tagged in the West Atlantic are composed of two populations, one that forages in ... incorporated from the tagging data as well as the genetic origin of the tagged fish. Block said saving the Gulf of Mexico population of bluefin will ...

Bursts of waves drive immune system 'soldiers' toward invaders

... a chemical signal made by invading microbes. The researchers fluorescently tagged Hem-1 to view its dynamic propulsive power under the microscope. ... and experiments. In the research, the team used the fluorescently tagged Hem-1 to determine whether the protein participated in the wave action, or ...

Researchers capture bacterial infection on film

... of infection in real-time with living organisms. The researchers used developing fruit fly embryos as a model organism, injecting fluorescently tagged bacteria into the embryos and observing their interaction with the insect's immune system using time-lapse confocal microscopy. The researchers ...

Research explores interactions between nanomaterials, biological systems

... important for the development of effective and safe nanoparticle drug-delivery systems. Much of the current knowledge derives from the study of tagged or labeled nanoparticles and their effects on cells after cellular uptake without any detailed understanding of what these interactions may lead to, ...

Using high-precision laser tweezers to juggle cells

... be possible to obtain with traditional methods. In its first stage, the new method has been tested on yeast cells. One of the cells' proteins was tagged with a green fluorescent protein (GFP), enabling researchers to trace the movements of the protein within the cell while it adjusts to a new ...

Disappearing act of world's second largest fish explained

... to over 10 meters and weigh as much as seven metric tons. Skomal said they were "absolutely surprised" when they first received a signal from the tagged sharks coming from the tropical waters of the western Atlantic, in the vicinity of the Caribbean and Bahamas. After all, basking sharks were always ...

CSHL team develops mouse models of leukemia that predict response to chemotherapy

... cells then took over the "host" bone marrow and promoted the development of leukemia. To track leukemia onset and response to therapy, the scientists tagged all leukemia cells with a gene from fireflies that encodes an enzyme called luciferase, which makes leukemia cells glow and detectable by a ...

NIST-Cornell team builds world's first nanofluidic device with complex 3-D surfaces

... deep end of the chamber and then electrophoretically driven across the device from deeper to shallower levels. Both the spheres and DNA strands were tagged with fluorescent dye so that their movements could be tracked with a microscope. In the trials using rigid nanoparticles, the region of the 3-D ...

New tracking tags are providing fish-eye views of ways to manage depressed fisheries

... them downstream. However, adult salmon numbers returning from the ocean did not increase. The Pacific Ocean Shelf Tracking project, which tagged juvenile fish, showed that the smaller, less developed fish were dying in high numbers in the lower river and coastal ocean. This kind of knowledge ...

Right whale sedation enables disentanglement effort

... survey team, which noted multiple lengths of heavy line cutting in to the whale's upper jaw and left lip and trailing behind the animal. It was tagged with a telemetry buoy by the Georgia DNR to allow it to be tracked. A disentanglement attempt by FWC, GA-DNR, Coastwise Consulting, University of ...

Tailor-made recombinant proteins in mammals

... CHO cells (Chinese hamster ovary cells), as well as in the HEK cell system (human embryonic kidney cells). "You can put anything you want on the tagged protein," she says, "You attach small molecule drugs, or polymers that change the pharmacokinetics such as polyethylene glycol polymers, or another ...

Animal trackers collaborate on new Google Earth for oceans

... these four principal investigators led a team of over 100 scientists from seven different countries. In the first eight years of the program they tagged over 4,000 individual animals, representing 23 different species, and collected over 1,000,000 days of data. Block also leads a program in the ...

New technique images tumor vessel leakiness to predict breast cancer chemotherapy outcome

... To verify that the intensity changes in the images were caused by the nanocarrier and not endogenous changes in the tumor tissue, liposomal probes tagged with a fluorescent dye were injected into the animals. By looking at histological tumor sections, the researchers showed that the location of the ...

Weizmann Institute scientists discover how cancer cells survive a chemotherapy drug

... the cells began the process of either dying or defending themselves against the drug. The team's efforts have produced a comprehensive library of tagged cells, images and data on cancer cell proteins a virtual goldmine of ready material for further cancer research. And they succeeded in pinpointing ...

Peering inside the skull of a mouse to solve meningitis mystery

... inside the skulls of infected mice. This breakthrough technology allows scientists to take moving pictures of immune cells in action. The cells are tagged with a protein that glows fluorescent green when activated by infrared light, which is able to penetrate living tissue without damaging it. Drs. ...

Real-time gene monitoring developed

... opens a new door for the study of genes' influence on behavior. The authors, from the University of Southern California and Cambridge University, tagged genes with a harmless molecule known as Green Fluorescent Protein (GFP). When a gene was active, the flies gave off a fluorescent glow. A camera ...

Caltech scientists show function of helical band in heart

... graduate and visitor in bioengineering, were able to create some of the first dynamic images of normal myocardium in action at the tissue level. "We tagged and traced small tissue elements in the heart, and looked at them in space, so we could see how they moved when the heart contracts," Gharib ....

Tool helps identify gene function in soybeans

... have found that they can screen plants for visible mutations in important agronomic traits, such as seed composition or root growth. By "tracing" a tagged transposon, scientists can easily identify the exact gene where any single mutation occurs. This technique has been successfully used in a number of ...

Loggerhead release to provide vital information to scientific community

... Indian River Lagoon because loggerhead turtles of this size are typically found in this body of water. The pair of sea turtles will be satellite tagged by Dr. Kate Mansfield of the University of Miami's Rosenstiel School of Marine and Atmospheric Science. Captive-raised turtles are rarely satellite ...

Similar survival rates for Pacific salmon in Fraser, Columbia Rivers raises new questions

... both critical spawning grounds for numerous salmon species. Using technology that has only recently been available, the team electronically tagged juvenile salmon (smolts) and monitored their journey from freshwater into the ocean via a large-scale acoustic telemetry system called the Pacific ...

Colorful spy tactics track live cells supporting cancerous tumors

... the activity of these cells, researchers injected fluorescent dyes near tumors in mouse models of breast cancer which also expressed fluorescently tagged cells A specially designed microscope allowed live imaging of tumor-associated cells for more than 12 hours, while retaining the high resolution ...

Unique study shows oil, gas seismic work not affecting Gulf sperm whales

... and at any one time, there are as many as 30,000 ships circling the globe. Biggs says that over the course of five summers, 98 sperm whales were tagged with devices that relayed back critical data such as measurements about sound levels and behavioral aspects of whales, including tracking their ...