Best, E. A.

English

Aquatic Commons

Vessel:  
Dates: 
Locality: 
Purpose: 
Results:  
The Resources Agency of California 
Department of Fish and Game 
Mari.ne Resources Operations 
Cruise Report 63-S-2 - Exploratory 
Prepared by EeAo Best 
N. Bo SCOFIELD 
Departed from San Pedro Marc.h 8;) 1963 
Returned to San Pedro March 2'7~ 1963 
Santa Barbara Channel and offshore from San Luis Obispo Baya 
10 To make biological surveys of representative ecological areas o 
20 To explore offshore areas for trawling grounds 0 
Stations were sought in 20 j 50, 100, 250, and 500 fathoms for otter 
trawling 0 Midwater trawling was planned at each of the bottom-trawling 
stations at the middle depth (half way to the bottom) All tows were0 
for 30 minutes 0 All fishes and invertebrates were identified, enumer-
ated, weighted and/or measured 0 Samples of unidentified or unusual 
animals were saved for scientists specializing on the different groups. 
Santa Barbara Channel 
In the Santa Barbara Channel, trawling stations were accomplished on 
two transects: 
Gaviota to Santa Rosa Island Transect 
Otter trawl: Eight otter-trawl stations were made at depths of 
about 50, 100, 230, and 300 fathoms. At the 50-fathom depth, 
Pacific sanddabs (Citharichthys sordidus), English sole (Parophrys 
vetulus), ratfish (Hydro1agus co1liei) , and northern midshipmen 
Porichthys notatus) were most abundant; small stripetail rockfish 
(Sebastodes saxicola), a small splitnose rockfish (~o diploproa), 
Pacific hake (Merluccius productus)~ and a slender sole (Lyopsetta 
exilis) were taken at 100 fathoms; Dover sole (Microstomus pacificus), 
Pacific hake, fi1etai1 cat shark (Parmaturus xaniurus), and rattails 
(Coryphaenoididae) were taken from 230 fathoms 0 Extremely soft mud 
was encountered at 310 fathoms, however, filetail cat sharks, Cali-
fornia smoothtongue (Leuroglossus stilbius) and unidentified gastro-
pods were trawled from thereo 
Midwater trawl: Six midwater-trawl stations were occupied on this 
transecto No fish were caught in four trawls at the 50 and 100 
fathoms 0 At the two deeper areas lanternfish (Myctophidae), dogfish 
(Squa1us acanthias)~ California smoothtongue, ribbonfish (Trachipterus 
altivelis)and juvenile rockfish (Sebastodes sPPo) were takeno 
Point Conception to San Miguel Island Transect 
Otter trawl~ Five bottom-trawl stations were completed in this tran-
sect at 50, 70, 120, and 250 fathoms 0 Ratfish and northern midshipmen 
were abundant at 50 fathoms; small rockfishes and ratfish were taken 
- 2 -
Personnel: 
4-18-63/125 
MRO-TI/md 
at 70 fathoms; rex sole (Glyptocephalus zachirus) and small rock-
fish were present at 120 fathoms; and Dover sole, Pacific hake, 
rattails, shortspined channel rockfish (Sebastodes alascanus) 
and aurora rockfish (Sebastodes aurora) were taken at 250 fathoms. 
Several hours scouting with the echo-sounder failed to indicate 
suitable bottom for trawling at depths beyond 250 fathoms. 
Midwater trawl: Five midwater hauls were made at approximately 
the same locations as the bottom-trawl stations. At 50- and 
100-fathom depths post-larval Pacific sanddabs, speckled sand-
dabs (Citharichthys stigrnaeus), and Dover sole were taken in 
quantity. At the deeper levels lanternfishes and argentinids 
predominated the catch. 
San Luis Obispo Bay 
Otter trawl: Five bottom trawls were made at depths of 20, 50, 
230, and 300 fathoms. Sand sole (Psettichthys melanostictus) and 
English sole predominated the catch at 20 fathoms; Pacific sand-
dabs, stripetail rockfish and northern midshipmen were abundant 
at 50 fathoms; dogfish, stripetail rockfish and splitnose rock-
fish were taken at 100 fathoms; Dover sole, shortspine channel 
rockfish and sablefish were abundant at both 230 and 300 fathoms. 
Considerable good trawling bottom was indicated at 300 fathoms, 
but shallower levels lying as a ridge farther off-shore were 
rougher. More exploratory work should be done in this area. 
Midwater trawl: Four midwater hauls were made to coincide with 
the deeper bottom stations; no midwater haul was made at 20 
fathoms. About 10 pounds of northern anchovies (Engraulis mordax) 
made up the entire catch at 50 fathoms. Post-larval sanddabs, 
both Pacific and speckled, were abundant at 100 fathoms. At the 
two deeper stations lanternfish were abundant, lesser numbers of 
other bathypelagic species and three female Pacific hake (one 
ripe and two spent) were taken. 
All cephalopods were preserved for study by Dr~ S.S. Berry, 
Redlands. Invertebrates collected were presented to the Allan 
Hancock Foundation for study. One bottom haul was made to collect 
live specimens for Marineland of the Pacifico 
R. B. Mitchell - Vessel Captain 
Eo Ao Best - Biologist-in-Charge 
J. Bo Phillips - Biologist - March 17-23 
G. Bickford - Assistant 
J. G. Smith - Assistant 
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Cruise Report 63-S-2 - Exploratory

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Cruise Report 63-S-2 - Exploratory

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