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Showing posts with label Taras Oceanographic Foundation. Show all posts
Showing posts with label Taras Oceanographic Foundation. Show all posts
Tuesday, January 2, 2018
Meet the Scientists Lecture Series hosted by Taras Oceanographic
Friday, October 13, 2017
Taras Oceanographic hosts a series of science lectures at Jupiter High School
The Meet the Scientist Lecture Series is in its 14th season. Hosted by Taras Oceanographic Foundation at Jupiter High School, Jupiter, FL 33458. Below is the upcoming calendar. Click on the image to enalrge, or visit their website from the link above.
Thursday, July 24, 2014
Research Field Notes: No. 8
5/22/2014.
Dolphin Boat Survey
Today’s survey extended from the Jupiter Inlet (N
260 56.624' W 800 03.805') down to the Lake Worth Inlet [aka the Palm Beach
Inlet] (N 260 46.300' W 800 03.500').
Research Organization: Taras Oceanographic Foundation
Wind/Water
conditions: S,SE 0-10. Seas 0-2’
Duration:
8am-12:30pm
Dolphin
encounters: Today we had two encounters. During the first survey we
had a very nice encounter with 5-6 individuals that were very active. They were
displaying several behaviors such as chuffing, rolling, tail slaps, upside down
tail slaps, jumps, lunge fishing and travel. The encounter lasted approximately
40 minutes.
During
Survey two, we encountered 2-3 tursiops. There was a big thunderstorm chasing
us, so it prevented us from observing these animals for very long. What we did
observe were long dives with short surface behaviors. It may have been weather
related or fishing activity. This encounter lasted 10 minutes.
OTHER: Turtle counts: 9 Trash count: 8
Here is a short video of the
chuffing behavior. (Please note all images and video are property of Taras
under the authority NMFS (GA LOC) No.13386).
Thursday, June 26, 2014
Research Field Notes: No. 6
6/26/2014.
Dolphin Boat Survey
Today’s survey extended from the Jupiter Inlet (N
260 56.624' W 800 03.805') down to the Lake Worth Pier (26°37′11″N 80°3′31″W)
Water
conditions: 0-1’
Winds:
SE 0-5
Duration: 8:30am-4:00pm
Research Organization: Taras Oceanographic Foundation
Encounters:
Three
with a total of approximately 60+ dolphins. The first encounter was with
tursiops (Bottlenose). This was a small group feeding. Encounter 2 was with a
large group of stenella (Spotted dolphin). This group was very playful and was
comprised of several mother/calf pairs! They put on quite the show with bow
riding, wake surfing, tail slaps, all around the boat. This one went on for quite
some time. The final encounter was tursiops again, but this time a very large
group or 25+. This group of bottlenose was more cooperative with our boat and we
got some nice shots. There were also babies in this group. One dolphin (Slappy) kept them all in line with tail slaps throughout the encounter.
[Personal notes: SQEEEEEEE!!! Teeny tiny baby dolphins are so
very cute!!]
Additional Sightings: We recorded approximately 32 sea turtles. We
have also begun trash counts. Today we saw 16 trash items in the water. We try
to recover these items and keep the plastic out of the ocean. Our big score this
trip was recovering a large bunch of silver helium balloons. People should be aware that releasing balloons into the sky, usually ends up littering places that do not need any more trash. Shiny balloons look like bait fish sparkling in the sun.
This is
the perfect opportunity to talk about ocean plastics. Plastic is not like other
kinds of trash. Trash bio-degrades. Plastic photo-degrades with the sunlight.
This means it keeps breaking down into smaller and smaller pieces. It never
goes away. These pieces of plastic are ingested by animals and eventually kill them;
the microscopic plastic dust attracts more debris resulting in huge garbage
patches. Plastic does not belong in the ocean.
Other: Here
is a short movie of the crew today. Unfortunately we have no dolphin footage
again, but will try next trip to get it!! There are many jobs happening at once
while we are on fins, so filming is not always possible [P.S. The survey boat
is usually not moving this fast. It is harder to spot any dolphin if the boat
is moving fast!].
Thursday, June 5, 2014
Research Field Notes: No. 3
6/04/2014
Dolphin Boat Survey
Due to conditions out on the open ocean; the morning survey
did not take place. Conditions did not improve for the afternoon; however we
had received several reports of dolphin sightings in the Lake Worth Lagoon (26°40′53″N
80°02′45″W) over the past several days, so we decided to head down to the area travelling
in the intracoastal waterways. We were not successful in sighting any dolphins.
The research team spent the first part of the day in the office doing data
analysis.
Conditions: Seas
3-5 feet. Winds E/SE 10 knots
Duration: 12:00pm
– 5:00pm
Research Organization: Taras Oceanographic Foundation
Recorded dolphin photo ID: zero encounters on this trip.
Other: Behind
the scenes. The boat survey is only a small portion of the work that is
needed to be done for photo ID and habitat utilization studies. Each trip can
produce a few hundred to even a thousand images. Once the team heads back to
the office, the photos need to be downloaded, sorted and compared. The best
images of each animal are organized into their own file. This step is the most
labor intensive. Illustrated by the fact that the researcher has to figure out
which images are of one animal [this is done from comparing distinct dorsal fin
markings]; how many times you have seen each animal; and compare it to the existing
ID catalog.
They are several ways of
organizing these ID photos and each researcher develops their own system. There
are however universal ID methods and protocol that are utilized. These processes take countless
hours. There is also GIS mapping data; habitat and COA (coefficient
of association) data files, etc. that need organized and analyzed depending on what the research team is
investigating.
Students doing field work or
internships soon learn the field part is actually a very small portion of the
entire research process.
Thursday, May 29, 2014
Research Field Notes: No. 2
5/28/2014
Dolphin Boat Survey
Today’s survey extended from the Jupiter Inlet (N 260 56.624' W 800 03.805') down to the Lake Worth
Inlet [aka the Palm Beach Inlet] (N 260 46.300' W 800 03.500').
Water conditions: Southeast WINDS 10-17 mph. SEAS 2 TO 3 FEET +
Duration: 8:15am-1:30pm
Research Organization: Taras
Oceanographic Foundation
Recorded dolphin photo ID:
Today’s trip had three encounters. The first was with two males. They were foraging and
bottom feeding. The second group “acted like” moms that were “napping” on the
surface with several juvenile calves close by engaging in “play time”. We
witnessed one tail slap behavior and one jump out of the water as the animal was traveling.
The third group were heading south in
the same direction as our survey and traveled parallel to the boat for a good distance. They initially engaged in a short bow ride. This group produced the best photo ID images.
It is hard to estimate the exact number of animals encountered. This will be
determined once the images have been examined.
Taras Oceanographic Foundation NMFS (GA LOC) No. 13386
Other: An
offering to King Neptune
Being out on the water doing field
research is always enjoyable. However, some days the ocean and weather conditions
make it harder than others. Students should be aware that conditions are not always perfect. This trip was no different. One of our team members was feeling a little queasy, so she made
an offering to King Neptune and all his fish! She recovered quickly though and
rejoined the team. The winds and sea heights began to pick up for the second
part of the survey.
Extras:
Why do dolphins jump out of the water when travelling? Go here
to find out.
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