3,307 research outputs found
The status of the California Barracuda resource and its management
The California barracuda, Sphyraena argentea, has been
fished commercially for over 70 years. Peak landings were
made during the early 1920's and have since declined to an
incidental level. The present interest in barracuda centers
around its desirability as a game species.
Recent estimates of barracuda abundance indicate the
population is at a low level and in need of increased
management efforts. (21pp.
Falling Profits, Rising Profit Margins, and the Full-Employment Profit Rate
macroeconomics, profit margins, profit rate
Southern California partyboat sampling study Quarterly Report no. 1
Estimates of the total yearly catch from the partyboat fishery have been collected and published on a routine
basis since 1935. Important data relating to the size and age composition of this segment of the marine sportfishery have been lacking. As a consequence, a southern California partyboat sampling study was initiated on April 1, 1975. The main objective of this sampling is to identify and measure all fishes taken by sportsmen on partyboats
with primary emphasis given to California barracuda, Sphyraena argentea; yellowtail, Seriola dorsalis; white seabass, Cynoscion nobilis; and rockfishes, Sebastes spp. (22pp.
Southern California partyboat sampling study Quarterly Report No. 4
From 1 April through 30 June, 1976, Department
personnel made 146 trips aboard southern California
partyboats. A total of 18,218 fishes from 76 species
was identified and measured.
Otoliths were removed from 674 rockfish carcasses
for use in age determination studies.
The 10 most common species sampled during this
quarter represented 85.2% of the total number of fishes
measured. These were, in order of importance: bocaccio,
Sebastes paucispinis; kelp bass, Paralabrax clathratus;
Pacific bonito, Sarda chiliensis; barred sand bass,
Paralabrax nebulifer; chilipepper, Sebastes goodei;
California barracuda, Sphyraena argentea; olive rockfish;
Sebastes serranoides; white croaker, Genyonemus lineatus;
ocean whitefish, Caulolatilus princeps; and vermilion
rockfish, Sebastes miniatus.
Pacific bonito and California barracuda partyboat
landings exceeded those of the entire 1975 season, and
sampling data indicate the average length of barracuda
caught from partyboats was significantly larger than
that of the previous season. (15pp.
Southern California partyboat sampling study Quarterly Report no. 3
During the period January 1 to March 31, 1976, Department
personnel made 139 sampling trips aboard southern California partyboats. A total of 22,122 fishes from 73 species was identified and measured.
Otoliths were removed from 1,536 rockfish carcasses representing 31 species for use in age determination.
Sampling personnel tagged and released 68 California
barracuda, Sphyraena argentea, and 18 sablefish, Anoplopoma
fimbria.
The five most common species sampled during this period
represented approximately 79% of the total number of fishes
measured. These were, in order of importance; bocaccio,
Sebastes paucispinis; chilipepper, Sebastes goodei; olive
rockfish, Sebastes serranoides; greenspotted rockfish,
Sebastes chlorostictus; and vermilion rockfish, Sebastes
miniatus. Bocaccio alone accounted for 52% of the sampled
catch. (15pp.
Southern California partyboat sampling study Quarterly Report no. 8
Between April 1 and June 30, 1977, 125 trips were
sampled aboard southern California partyboats by Department
personnel. A total of 14,842 fishes belonging to 72 species was identified and measured. Otoliths were
removed from 134 rockfish carcasses representing 20
species for age deterination studies.
The 10 most common species sampled during the quarter
accounted for 76.9% of the catch. Individually, the most
common were Pacific mackerel, Scomber japonicus (16.9%);
kelp bass, Paralabrax clathratus (14.5%); bocaccio, Sebastes paucispinis (11.4%); Pacific bonito, Sarda chiliensis (10.3%); barred sand bass, Paralabrax nebulifer (5.6%); olive rockfish, Sebastes serranoides (5.3%); chilipepper, S. goodei (4.0%); California barracuda, Sphyraena argentea (2.9%); and ocean whitefish, Caulolatilus princeps (2.8%).
Fishing effort switched from "rockcod" to surface
activity as it did during the second quarter of 1976 (26pp.
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