Research Highlights
Oceanus Magazine
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Traditionally, pumps and nets are used for sampling plankton, which require sampling at predetermined stations or towing nets behind a ship, followed by visually sorting collected organisms into taxonomic groups. Samples generally combine organisms collected throughout horizontal or vertical tracks, making it impossible to detect small gradations or species-specific patterns in larval distribution.
The sampling system combines three cutting edge technologies—an adapted Suspended Particulate Rosette (SUPR) multi-sampler, a REMUS autonomous underwater vehicle equipped with sensors, and identification of organisms by DNA barcode analysis. They’ve dubbed the new system “SUPR-REMUS.”
In a study, published Aug. 6, 2015 in Marine Ecology Progress Series, scientists at Woods Hole Oceanographic Institution (WHOI) used low-cost autonomous underwater recorders over four months to collect “soundscapes” of reefs in in the U.S. Virgin Islands. They showed how the collective sound recordings of reef inhabitants painted vivid pictures of the reefs’ abundance and diversity.
In a second study, published the same day in Marine Pollution Bulletin, the researchers recorded boat noise—showing how it could mask vital sounds that organisms make to reproduce, feed, and find new homes. They also demonstrated how underwater recorders could help marine managers keep an ear on potentially disruptive human activity in far-off locations.
A research team has successfully demonstrated a new non-invasive tool to obtain hard-to-get health measurements of large endangered whales in the wild: Using a small remote-controlled hexacopter, scientists for the first time collected both breath samples from the whales’ spouts combined with aerial photos of their body condition.
NOAA researchers and colleagues from the Woods Hole Oceanographic Institution (WHOI) have reported what appears to be a banner year for young sea scallops off the Delmarva Peninsula in mid-Atlantic waters of the U.S. NOAA’s HabCamV4, a towed imaging and sensor platform, has photographed miles of sea bottom packed with as many as 350 sea scallops in less than 1 square meter (less than three square feet). Other colorful images captured by the HabCam showed swimming scallops, sea stars and crabs—both scallop predators—and many species of fish, squid and sponges.
New England’s spring and summer red tides will be similar in extent to those of the past three years, according to the 2015 Gulf of Maine red tide seasonal forecast. The forecast is the eighth seasonal Gulf of Maine red tide forecast funded by NOAA and issued by scientists from the Woods Hole Oceanographic Institution and North Carolina State University.
The forecast is part of a larger NOAA effort to deliver ecological forecasts that support human health and well-being, coastal economies, and coastal and marine stewardship.
Red tide, a type of harmful algal bloom (HAB) caused by the alga Alexandrium fundyense, produces a toxin that can lead to paralytic shellfish poisoning, which can result in serious or even fatal illness in humans who eat contaminated shellfish. In 2005, an unusually large red tide event caused $23 million in lost shellfish sales in Massachusetts and Maine.
News & Insights
April 24 marks the first-ever Right Whale Day in Massachusetts. WHOI biologist and veterinarian Michael Moore recently met with the resident who brought this special recognition about– and explains why it’s important to raise awareness about the critically endangered North Atlantic right whale.
A report out this week in Current Biology reveal that critically endangered North Atlantic right whales are up to three feet shorter than 40 years ago. This startling conclusion reinforces what scientists have suspected: even when entanglements do not lead directly to the death of North Atlantic right whales, they can have lasting effects on the imperiled population that may now number less than 400 animals. Further, females that are entangled while nursing produce smaller calves.
May 10, 2021 During a joint research trip on February 28 in Cape Cod Bay, Mass., WHOI whale trauma specialist Michael Moore, National Geographic photographer Brian Skerry, and scientists from New England Aquarium, witnessed a remarkable biological event: North…