Greta Dykstra-Lyons, August 2, 2005

NOAA Teacher at Sea
Greta Dykstra-Lyons
Onboard NOAA Ship David Starr Jordan
August 1 – 20, 2005

Mission: Cetacean Abundance Survey
Geographical Area: U.S. West Coast
Date: August 2, 2005

Science and Technology Log 

Due to a backlog of scheduled repairs, the JORDAN did not depart from its homeport, San Diego on July 30th as scheduled. On Monday August 1st, the ship headed into San Diego Bay so that adjustments could be made to its acoustic backscatter (somewhat like an echo sounder). While this was being done, cruise members not trained in small-boat operations were given a brief training.  After which, the Zodiacs were lowered into the bay and we spent part of the afternoon putting our training to use zipping around the bay.  Anchors were hoisted and the JORDAN left the bay about 5:00 p.m. Sightings since we left San Diego include the following: bottle nose dolphins, Risso’s dolphins, short beaked common dolphins (which surrounded the boat by the 100s), two separate blue whale sightings, two separate sperm whale sightings (multiple animals each sighting),and a fin whale. Small boats were launched for the first blue whale and sperm whale sightings, and this allowed for photo identification and biopsies.  The two bird identifiers on board were thrilled to spot and photograph a Hornsby’s storm petrel.  This is the only documented North American sighting.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s