EAC 34, Marysville, January 1968
Page 48
Image from the Biodiversity Heritage Library. Contributed by Smithsonian Institution Archives. | www.biodiversitylibrary.org
Transcription
Two separate sightings of Fur Seals were made during the day. Both animals were floating on their backs, flippers and tail in the air. Harrington recorded one California Sea Lion which was swimming and diving. 7 January 1968 One Fur Seal was noted floating on his stomach. 8 January 1968 Dall Porpoise 8+1 diving/feeding were observed and one or two por- poise would come to the surface at a time. They would slowly roll, showing only dorsal fins and dorsal ridge (no flukes). Dorsal fins very black except for white on tip and posterior edge. Animals were pursued for approximately 30 minutes. Seal sp. recorded by Chandler. Two additional Dall porpoise were noted feeding later in the day. 9 January 1968. Two Killer Whales were logged by Harrington - one was seen well, ca. 15 feet in length, with dorsal about 1-1/2 to 2 feet high. 11 January 1968 Dall porpoise 12+2 traveling west were recorded. Identifications based on swimming behavior and black dorsal fins with some white on posterior edge. If these were Dall Porpoise they are the most southern recorded ones. A dolphin was noted jumping clear of the water in the early after- noon. Based on behavior it was a Tursiops nuuanu (truncatus). A Baleen Whale was observed traveling east in the late afternoon. Chandler said he saw the dorsal fin. This was probably a Sei or a Fin Whale. Early in the morning 100+20 Delphinus delphis divided into two sub- groups but each was quite dispersed. All dolphins were traveling to the southwest. All dorsal fins noted (15-20 animals) had white triangular mark. Not the whitish/grayish patch of northern or non-Grid Delphinus. The dolphins were pursued for 10-15 minutes but they did not ride the bow. 12 January 1968 - Non-Grid Delphinus ca. 300 animals were noted in the early morning. Later in the morning some 50-70 Delphinus were noted. Color variation was noted on the dorsal fins, flippers, and snouts. No dolphins with the white triangular mark on their dorsal fins were noted.