Ocean Service Vessel(OSV) Bold: Seafloor Research Cruise
SATURDAY, JUNE 19 – Observing the seafloor using a high tech underwater video camera fascinates the entire crew. Each drop of the camera brings a new mosaic of geology, flora, and fauna into view. The video display from various stations may show boulders with attached seaweed, sandy bottom with sand dollars and small fish, or broad expanses of apparently featureless mud. We have also seen sea stars, shrimp, cunner (a small fish that lives on the seafloor), anemones, shells, and an assortment of seaweeds ranging from beautiful red encrusting algae to swaying kelp.
The scientific party is also collecting sediment samples that will help us gain a better understanding of seafloor habitat. The samples will be analyzed for both the size of the sediment (sand/silt/clay) and the number and types of organisms living in the sediment. Many species have specific habitat preferences, so accurate mapping of seafloor sediments is essential for a better understanding of our biological resources.
After 24 hours of round the clock effort, we have sampled 43 stations. If the weather and the crew hold up, we are aiming to visit as many as 300 stations.
The Turtles are Coming posted on Aug 29
With a migration pattern that stretches thousands of miles, it is no surprise that Massachusetts is home to four types of turtles during the summer, all of them protected by local and international law. And while you probably know that sea turtles often frequent the Massachusetts beaches, can you identify them?
2014 DAR Agricultural Calendar: August posted on Aug 25
Augusts’ Massachusetts Agriculture Calendar Photo Contest winner was Cara Peterson, who photographed a high tunnel greenhouse at Flats Mentor Farm in Lancaster.
Not From Around Here: Green Crabs posted on Aug 22
As part of its work to assess salt marsh health, staff from the Massachusetts Office of Coastal Zone Management (CZM) have frequently observed abundant green crabs, often burrowing in the banks of marsh creeks. This summer, CZM is examining the potential impacts of green crabs in salt marsh habitats, including the impact of burrowing activity.