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I 
Preliminary Report 
Eastern Area Cruise No. 17 
Eastern Grid Survey No. 10 
prepared by 
Richard D. Chandler 
Cruise Itinerary: 10 July 08l5 
19 July 1226 
21 July 05l4 
23 July 0900 
23 July 1700 
24 July 0515 
29 July 0830 
30 July 1000 
Chandler, Hoff depart Honolulu 
Arrive Eastern Grid area 
Begin nominate Grid Cruise Track 
Depart Grid area for helicopter 
rendezvous 
DeLong arrives via helicopter 
Resume regular Grid observations 
Depart Grid area 
Arrive Long Beach 
Personnel : Robert DeLong (Biologist-in-Charge 23-31 July) 
Richard Chandler (Biologist-in-Charge 10-23 July) 
David Hoff 
Methods : Diurnal observations were made from the helicopter deck 
when weather conditions permitted. During high seas 
the watch was held from the lee wing of the bridge. 
Nocturnal watches were held on the lee side of the 
quarterdeck. Other methods and procedures followed 
those established on previous cruises on this type of 
vessel. Birds were collected from the skiff on 
28 July. No BT casts were made. 
NON-GRID SECTIONS : 
The non-Grid areas have been broken down into four sections as 
follows: 
Section n A n Hawaiian Area 10-11 July 
The observations during the first two days out of Honolulu (10-11 July) 
were strongly influenced by land-based populations from the main Hawaiian 
islands. Area "A" (see Figure #l) is best discussed separately from the 
next section. 
Section "B" Deep Pelagic Area 12-19 July 
Beyond 300 miles from the main Hawaiians the number of birds dropped 
sharply to a very low level and remained low to the western side of the 
Grid area (l26°30' W, see Figure #l). 
Section "C" Pt. Arguello 23 July 
During the rendezvous with the helicopter, observations were taken 
from 11 to 20 miles off the California coast near Pt. Arguello/Pt. Con¬ 
ception (see Figure #2). 
