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  • Fisheries  (346)
  • Analytical Chemistry and Spectroscopy
  • General Chemistry
  • California Department of Fish and Game, Marine Resources Region  (346)
  • 101
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    Southern California independent sport fishing survey Quarterly Report no. 10 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/45 | 8 | 2021-02-27 19:34:29 | 45 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: During the October 1 - December 31, 1977 quarter, 28launch ramps, hoists, and boat rental locations weresampled a total of 294 times. During the sample days11,942 anglers and 1,025 divers were interviewed.They expended 83,882 effort-hours and landed 36,741fishes and other organisms of 163 identified species.The ten most commonly landed species were 1) Pacificmackerel, Scomber japonicus, 16%; 2) white croaker,Genyonemus lineatus, 16%; 3) olive rockfish, Sebastesserranoides, 6%; 4) blue rockfish, S. mystinus, 4%;5) halfmoon, Medialuna californiensis, 4%; 6) Pacificbonito, Sarda chiliensis, 3%; 7) rock scallop,Hinnites multirugosus, 2%; 8) chilipepper, Sebastesgoodei, 2%; 9) greenspotted rockfish, S. chlorostictus,2%; and 10) kelp bass, Paralabrax clathratus, 2%. (25pp.)
    Keywords: Management ; Fisheries ; Biology
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  • 102
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    Southern California commercial passenger fishing vessel sampling study Quarterly Report no. 14; October 1 - December 31, 1978 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/47 | 8 | 2011-09-29 22:38:45 | 47 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Between October 1 and December 31, 1978, Departmental personnel sampled catches during 132 trips aboard commercial passenger fishing vessels (partyboats) operating in southern California. A total of 25,571 fishes belonging to 87 species were identified and measured.In addition, six long-range trips originating in San Diego and fishing in Mexican waters were sampled. A total of 1,225 fishes comprising 20 species was identified and measured at dockside from these vessels.The 10 most commonly taken species during the quarter accounted for 76.3% of the southern California catch. The most frequently sampled species were bocaccio, Sebastes paucispinis (24.7%); Pacific mackerel, Scomber japonicus (15.8%); chilipepper, Sebastes goodei (8.7%); kelp bass, Paralabrax clathratus (7.4%); Pacific bonito, Sarda chiliensis (5.7%); olive rockfish, Sebastes serranoides (4.1%); blue rockfish, S. mystinus (4.0%); squarespot rockfish, S. hopkinsi (2.1%); greenspotted rockfish, S. chlorostictus (2.l%); and vermilion rockfish, S. miniatus (1.9%). Samples gathered from long-range trips showed thetop five species accounted for 90.4% of the fishes sampled. The most frequently sampled species were yellowtail, Seriola lalandi (28.8%); yellowfin tuna, Thunnus albacares (20.7%); wahoo, Acanthocybiumsolanderi (16.2%); snowy grouper, Epinephelus niveatus (12.4%); and dolphinfish, Coryphaena hippurus (12.3%).December marked the final month in which partyboats were sampled off southern California. (69pp.)
    Keywords: Management ; Fisheries
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  • 103
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    Diablo Canyon power plant site ecological study Quarterly Report no. 17: July 1 - September 30, 1977 (2021)
    California Department of Fish and Game, Marine Resources Region | Avila Beach, CA
    In:  http://aquaticcommons.org/id/eprint/46 | 8 | 2021-02-27 19:26:52 | 46 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: During the quarter a total of 38 random 30-m2and 152 random 1/4-m2 subtidal stations weresurveyed. Red abalone, Haliotis rufescens,densities remained very low. There was a continueddecline in densities of giant red seaurchins, Strongylocentrotus franciscanus, inDiablo Cove as well as the North Control area.The annual shore census of bull kelp, Nereocystisluetkeana, revealed the lowest number of plantsin the surface canopy in Diablo Cove since 1973. The subtidal station data supported this observation.Sea otter, Enhydra lutris, observations werecontinued. A small group of otters continuedto raft in the Cove east of Lion Rock. Someof these otters probably forage as far south asSouth Cove.The survey of 11 random intertidal stationscompleted our Upwelling sampling effort. (16pp.)
    Keywords: Ecology ; Fisheries ; Biology
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  • 104
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    Southern California independent sport fishing survey annual report no. 2 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/48 | 8 | 2011-09-29 22:38:50 | 48 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: For the second consecutive year, a program of randomfield sampling of anglers and divers fishing fromprivately owned boats was conducted at southernCalifornia launch ramps, hoists, and boat rentalfacilities. This study presents quantitative dataand statistical estimates of effort, total catch,catch of preferred sport fish species, and lengthfrequencies of particular species landed by privateboat sport fishermen. An assessment of sportfishermen's compliance with current fishingregulations is also included.Catch composition and effort levels variedconsiderably among the five counties sampled,reflecting differences in water temperature,offshore habitat, and preferences for particularspecies by local fishermen. A comparison of thisyear's results with those of last year showed thatalthough catch rates for some species were similarboth years, others diverged considerably. (84pp.)
    Keywords: Management ; Fisheries
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  • 105
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    Southern California independent sport fishing survey annual report no. 3 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/54 | 8 | 2011-09-29 22:39:23 | 54 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: For the third consecutive year a program of random fieldsampling of anglers and divers fishing from privatelyowned boats was conducted at southern California launchramps, hoists, and boat rental facilities. This studypresents quantitative data and statistical estimates ofeffort, total catch, catch of preferred sport fishspecies, and length frequencies of particular specieslanded by private boat sport fishermen. An assessment ofsport fishermen's compliance with current fishingregulations is included along with an estimate of thenumber of anglers who returned empty-handed.Catch composition and effort levels varied considerablyamong the five counties sampled, reflecting differencesin water temperature, offshore habitat, and preferencesfor particular species by local fishermen. A comparisonof this year's results with those of last year showedthat angler effort dropped 16% and angler catch dropped15%, while diver effort and catch dropped 18% and 9%respectively. This reduction is attributed to the recordamounts of rainfall in southern California which severelycurtailed fishing activity during four months of the year. (105pp.)
    Keywords: Management ; Fisheries
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  • 106
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    Pacific herring, Clupea harengus pallasi, studies in San Francisco Bay, central and northern California, and Washington; March 1985 to May 1986 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/49 | 8 | 2011-09-29 22:38:54 | 49 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Herring schools were surveyed hydroacoustically and sampledin San Francisco Bay from late October 1985 to March 1986.Nine schools entered the bay and spawned between October 30and March 5; large schools (greater than 1000 tons) occurred only from December to March. Total biomass estimate from hydroacoustic surveys was 36,600 tons, and it was determined from spawn escapement and catch that an additional 5600 tons were not detected. This is an increase from last season's total of approximately 35,000 tons. Heavy rainfall and depressed salinities in the bay inhibited spawning for 3 wk in February and March. Eighty- five samples, containing a total of 13,260 herring, were collected with variable-mesh gill net and midwater trawl or obtained from the roundhaul and gill net fisheries. Mean length of herring decreased only during the early part of the season; the strong showing of the 1982 and 1983 yr classes resulted in more uniform length composition of samples from December to March.Age composition for the entire spawning season consisted of90% by number and 85% by weight 2-, 3-, and 4-yr olds (1984, 1983, and 1982 yr classes). The 1981 yr class again was relatively weak. The 1982 yr class has had the highest mean length and weight as 3- and 4-yr olds that we have seen in 5 yr.Fecundity estimates from the past three seasons averaged 222.8 eggs/g and showed no significant difference amongseasons.Survival of herring from 1984-85 spawns was greater than the previous year and indicates that the 1985 yr class may be above average in relative strength.A morphometric analysis of herring from Humboldt Bay, FortBragg, Tomales Bay, and San Francisco Bay indicated that northern stocks could be separated from southern stocks with an 85-87% success rate, but morphometric differences were not great enough to separate herring from Tomales and San Francisco Bays. Growth differences, expressed as mean age per BL interval, were apparent in the four groups and show a gradual increase in growth rate with increasing latitude. Herring from Washington, aged by scales and otoliths, also fit this trend. (102pp.)
    Keywords: Fisheries ; Biology
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  • 107
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    Southern California independent sport fishing survey Quarterly Report for October-December, 1975 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/52 | 8 | 2011-09-29 22:39:18 | 52 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: A 1-yr study was undertaken to devise a sampling programwhich would determine fishing catch and effort levels ofone segment of the southern California marine sportfishery. Personal interviews of fishermen were conductedat launch ramps, boat hoists, and boat rental locationsfrom Santa Barbara County to the Mexican border. Thisreport presents quantitative data and statisticalestimates of effort, total catch, catch of preferredsport fish species, and length frequencies of selectedspecies landed by private-boat sport fishermen.An estimated 52,000 anglers and 4,300 divers landed179,000 fishes, molluscs, and crustaceans. The majorcomponents of the catch were 1) rockfishes, Sebastes spp.,68,000 landed; 2) white croaker, Genyonemus lineatus,38,000 landed; and 3) bass, Paralabrax spp., 13,000landed. (21pp.)
    Keywords: Management ; Fisheries
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  • 108
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    Crab sport fisheries in Humboldt Bay and Cresent City Harbor, California (2021)
    California Department of Fish and Game, Marine Resources Region | Avila Beach, CA
    In:  http://aquaticcommons.org/id/eprint/50 | 8 | 2011-09-29 22:38:56 | 50 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: In December 1964 interviewing of sport crab fishermen wasbegun in Humboldt Bay. A similar study was initiated inCrescent City in 1965. Fifty-four anglers interviewed atHumboldt Bay in 1964 and 1965 caught 27 Dungeness crabs,Cancer magister. The total estimated catch during thesampling period was 400 Dungeness crabs.Skiff fishermen in Crescent City caught an estimated 6,318Dungeness crabs during the 1965-66 season; 1,666 Dungenesscrabs during the 1966-67 season and 5,054 Dungeness crabsduring the 1967-68 season. There is a good potential forincreased fishing in Crescent City Harbor, Trinidad Bay andShelter Cove. (10p.)
    Keywords: Management ; Fisheries ; Biology
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  • 109
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    Southern California independent sport fishing survey Quarterly Report no. 12 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/55 | 8 | 2011-09-29 22:39:37 | 55 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: During the April 1 - June 30, 1978 quarter, 29 launchramps, hoists, and boat rental locations weresampled a total of 307 times. During the sample days15,220 anglers and 685 divers were interviewed. Theyexpended 107,738 effort-hours and landed 38,132 fishesand other organisms of 146 identified species.The ten most commonly landed species were 1) whitecroaker, Genyonemus lineatus, 30%; 2) Pacific mackerel,Scomber japonicus, 11%; 3) kelp bass, Paralabraxclathratus, 9%; 4) barred sand bass, P. nebulifer, 4%;5) blue rockfish, Sebastes mystinus, 2%; 6) bocaccio,S. paucispinis, 2%; 7) olive rockfish, S. serranoides,2%; 8) brown rockfish, S. auriculatus, 2%; 9) Pacificsanddab, Citharichthys sordidus, 2%; and 10) blacksurfperch, Embiotoca jacksoni, 2%. (26pp.)
    Keywords: Management ; Fisheries
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  • 110
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    Status of the spawning biomass of the Pacific sardine, 1977-78 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/58 | 8 | 2011-09-29 13:04:36 | 58 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: State law requires that the population ofPacific sardines, Sardinops sajax caeruleus,must reach a minimum spawning biomass of20,000 short tons before initiation of afishery. Data from ichthyoplankton surveys,sea survey cruises, the anchovy bait fishery,and jack mackerel purse seine fishery areanalyzed for evidence of an increase inpopulation size. Presently, the spawningbiomass of the northern stock of sardines isfar below the minimum requirement. (8pp.)
    Keywords: Fisheries ; Biology ; Pacific sardines ; Sardinops sajax caeruleus
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  • 111
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    Southern California partyboat sampling study Quarterly Report no. 11 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/56 | 8 | 2011-09-29 22:39:39 | 56 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: From January 1 through March 31, 1978, Departmentalpersonnel sampled catches from 141 trips while aboard commercial passenger fishing vessels operating in southern California. A total of 25,339 fishes belonging to 88 species were identified and measured. Otoliths for age determination studies were removed from 247 rockfish carcasses representing 22 species. Additionally, nine long-range trips originating in San Diego and fishing in Mexican waters were sampled. A total of 1,518 fishes representing 24 species was identified and measured at dockside from these vessels. The 10 most commonly taken species during the quarteraccounted for 68.1% of the southern California catch.The most frequently sampled species of bocaccio, Sebastespaucispinis (21.1%); chilipepper, S. goodei (16.5%); Pacific mackerel, Scomber japonicus (8.7%); blue rockfish, Sebastes mystinus (6.0%); kelp bass, Paralabrax clathratus ( 5.2%); vermilion rockfish, S. miniatus (3.7%); squarespot rockfish, S. hopkinsi (3.2%); greenspotted rockfish, S. chlorostictus (2.9%); olive rockfish, S. serranoides (2.8%); and whitecroaker, Genyonemus lineatus (2.6%). Samples gathered fromlong-range trips showed the top five species accounted for83.8% of the fish sampled. The most frequently sampled species were wahoo, Acanthocybium solanderi (28.6%);yellowfin tuna, Thunnus albacares (23.7%); yellowtail, Seriola dorsalis (18.6%); leopard grouper, Mycteroperca rosacea (6.2%); and gulf grouper, M. jordani (3.8%). (55pp.)
    Keywords: Management ; Fisheries
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  • 112
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    Ocean shrimp report 1974 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/59 | 8 | 2011-09-29 13:04:41 | 59 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Statewide Pacific ocean shrimp landings for 1974 are totaled and compared with the 1973 season. Landings by area are described in relation to poundage by month, catch per unit effort and Fishing area. Sampling results reveal year class composition by numbers and weight of catches by area. Sex composition for all areas and also size of the shrimp by month are computed. Results of the hake stomach analysis reveal the possibility of a good showing of the 1974 year class in Area A. The outlook for the 1974 season indicates that the strong 1973 year class with help from the 1974 year class will carry the fishery in 1975. (18pp.)
    Keywords: Fisheries ; Biology
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  • 113
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    Status of Pacific mackerel spawning population, 1975 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/61 | 8 | 2011-09-29 22:38:37 | 61 | California Department of Fish and Game
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    Publication Date: 2021-06-25
    Description: Three methods were used to determine the Pacific mackerelpopulation. The tag and recovery method estimated thepopulation at 620 short tons. The other two estimateswere based on regression techniques of partyboat catchesand these results yielded 2,921 tons and 1,385 tons,respectively. All three estimates were below the 10,000tons prescribed for a fishery and thus no harvest couldbe allowed. (14pp.)
    Keywords: Fisheries ; Biology ; Scomber japonicus ; Pacific mackerel ; population estimates
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  • 114
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    Diablo Canyon power plant site ecological study Annual Report July 1, 1976 - June 30, 1977 and Quarterly Report no. 16 April 1, 1977 - June 30, 1977 (2021)
    California Department of Fish and Game, Marine Resources Region | Avila Beach, CA
    In:  http://aquaticcommons.org/id/eprint/57 | 8 | 2011-09-29 22:38:41 | 57 | California Department of Fish and Game
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    Publication Date: 2021-06-25
    Description: More stations were surveyed during this report periodthan during any previous period. A total of 818 mandayswas spent surveying 18 permanent and 67 randomsubtidal stations, 19 permanent and 50 random intertidalstations, and 64 sportfish catch-per-unit-of-effortstations, as well as conducting corollary laboratorywork.In the subtidal areas, Laminaria dentigera and Pterygophoracalifornica, both important subsurface kelpspecies, increased in their combined total numbers fromthe 1976 survey. However, Nereocystis luetkeana, thebull kelp, declined substantially in all study areas.Population trends of many of the dominant subtidalmacro-invertebrates have varied depending on the speciesand on the type of method utilized. Regression analyseshave been performed on selected species for numbersversus depth. Red algal abundance and diversity appearto have increased in both subtidal study areas.Of the three observation areas, sea otters were observedleast frequently in Diablo Cove. However, there continuesto be fresh evidence of otter foraging withinDiablo Cove.Several seasons' data for intertidal algae and invertebrates have been summarized for one study area. While the algae biomass shows a fairly clear seasonality ofabundance, the trends in numbers of the six invertebratespecies considered are not as well defined.Because of high variability in the data, the sportfishcatch-per-unit-of-effort and hook-and-line study wascancelled in December.Populations of intertidal red and black abalones,Haliotis rufescens and H. cracherodii, respectively,appear to have remained fairly stable during the1976-77 period.Two other ancillary studies were also terminated duringthis period: interviews of commercial abalone andurchin fishermen, and observations of foam in Diablo Cove. (107pp.)
    Keywords: Ecology ; Fisheries ; Biology
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  • 115
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    Southern California marine sport fishing: private-boat catch and effort, 1975-1976 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/53 | 8 | 2011-09-29 22:39:20 | 53 | California Department of Fish and Game
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    Publication Date: 2021-06-25
    Description: The catch landed and effort expended by private-boatsport fishermen were studied from July, 1975 throughJune, 1976, in order to determine the magnitude andimpact of one segment of the marine sport fishery insouthern California. Fishermen returning from afishing trip were interviewed at launch ramps, boathoists, and boat rental locations from Pt. Conceptionto the Mexican border. This report presentsquantitative data and statistical estimates of totaleffort, total catch, catch of preferred sport fishspecies, and length-frequencies of size-regulatedspecies.An estimated 944,000 organisms were landed by 315,000anglers and 16,500 divers. A large variety of specieswas landed, but six species contributed over one-halfof the catch. Divers landed very few sublegalorganisms, but anglers took large numbers of sublegalsize fish. Continuance of this study will be necessaryto show changes in fish availability, fishing pressure,and compliance with fishing regulations. (64pp.)
    Keywords: Management ; Fisheries
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  • 116
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    Southern California anchovy reduction fishery sampling plan review (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/62 | 8 | 2011-09-29 13:04:16 | 62 | California Department of Fish and Game
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    Publication Date: 2021-06-25
    Description: The sampling plan applied to the northern anchovy, Engraulis mordax, reduction fishery catch was reviewed to determine the effects on age composition estimates which would be caused by decreasing the sample size per stratum of catch. Age composition estimates for samples of 5, 10, and 15 per stratum were computer calculated using the sampling plan program and then compared with estimates for the standard sample of 30 from the same strata. As the sample size decreased the variances of the age composition statistics greatly increased. Errors were detected in the computer program and the variance equation have been corrected. (30pp.)
    Keywords: Management ; Fisheries ; Biology ; Northern anchovy ; Engraulis mordax
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  • 117
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    Dungeness crab research program (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/63 | 8 | 2011-09-29 13:04:21 | 63 | California Department of Fish and Game
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    Publication Date: 2021-06-25
    Description: In 1974, the California State Legislature, recognizing theproblem of low yields from the Dungeness crab resource ofcentral California, directed the Department of Fish and Gameto conduct an investigation into the causes of the decline.The Operations Research Branch of the Department has conductedpreliminary studies and field operations necessary to formulate the Dungeness Crab Research Program. The objectives,research design, and work plans are presented for a 4-yearprogram from July 1, 1975 through August 31, 1979. (38pp.)
    Keywords: Management ; Fisheries ; Biology ; Dungeness crab ; Cancer magister ; commercial fishery
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  • 118
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    California shellfish importation and planting report 1974-1975 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/64 | 8 | 2011-09-29 13:04:25 | 64 | California Department of Fish and Game
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    Publication Date: 2021-06-25
    Description: The amount of shellfish imported and planted in State waters is enumerated by species and compared with the previous season. Arrangements were made with the Washington State Department of Fisheries to inspect the bulk of the seed oysters originating in Washington State. Adult Eastern oysters, Crassostrea virginica, were inspected upon arrival in San Francisco. Experimental studies with seed from mortality resistant parents have continued and survival and growth are being compared with commercial stock. (6pp.)
    Keywords: Fisheries ; Aquaculture ; Biology ; Eastern oysters ; Crassostrea virginica ; shellfish
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  • 119
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    Southern California partyboat sampling study Quarterly Report no. 9 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/66 | 8 | 2011-09-29 13:04:02 | 66 | California Department of Fish and Game
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    Publication Date: 2021-06-25
    Description: Between July 1 and September 30, 1977, Departmentalpersonnel sampled catches during 184 trips aboard commercial passenger fishing vessels operating in southernCalifornia. A total of 28,617 fishes belonging to 89species was identified and measured. Otoliths for agedetermination studies were removed from 222 rockfishcarcasses representing 20 species.The 10 most commonly sampled species during thequarter accounted for 82.9% of the catch. The most frequently sampled fishes were kelp bass, Paralabraxclathratus (18.9%); Pacific mackerel, Scomber japonicus(17.6%); olive rockfish, Sebastes serranoides (15.5%);blue rockfish, S. mystinus (8.7%); barred sand bass, P.nebulifer (8.6%); California barracuda, Sphyraenaargentea (4.9%); sculpin, Scorpaena guttata (2.4%);bocaccio, S. paucispinis (2.3%); white croaker, Genyonemuslineatus (2.1%); and squarespot rockfish, S. hopkinsi (1.8%).Partyboat activity continued to center on surfacefishing. (33pp.)
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  • 120
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    Southern California independent sport fishing survey Quarterly Report no. 9 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/67 | 8 | 2011-09-29 13:04:07 | 67 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: During the July 1 - September 30, 1977 quarter, 29launch ramps, hoists, and boat rental locationswere sampled 380 times. During the sample days25,256 anglers and 1,445 divers were interviewed.They expended 179,564 effort-hours and landed64,371 fishes, molluscs, crustaceans, echinoderms,and coelenterates of 179 identified species.The ten most commonly landed species were 1)white croaker, Genyonemus lineatus, 25%; 2)Pacific mackerel, Scomber japonicus, 8%; 3)olive rockfish, Sebastes serranoides, 7%; 4)kelp bass, Paralabrax clathratus, 6%; 5) blue rockfish, Sebastes mystinus, 3%; 6)barred sand bass, Paralabrax nebulifer, 3%; 7)brown rockfish, Sebastes auriculatus, 2%; 8)spotted sand bass, Paralabrax maculatofasciatus, 2%;9)grass rockfish, Sebastes rastrelliger, 2%; and10)queenfish, Seriphus politus, 2%. (28pp.)
    Keywords: Management ; Fisheries
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    Preliminary report on the ability of marine recreational fishermen to identify the more commonly caught sportfish (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/70 | 8 | 2011-09-29 22:37:38 | 70 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Fishermen on piers and privately-owned boats in southernCalifornia were surveyed to determine their ability toidentify (by common name) 18 of the more commonly caughtsportfish. Anglers were shown color photographs of the fishand asked to identify them. Most people were not able toidentify more than 5 or 6 species correctly. The numberof incorrect responses (calling one species by another'sname, or using a non-recommended common name) was nothigh. Instead, it was the level of non-response (thefisherman had no idea what the species was) that wassurprisingly high.The results of the survey indicate that anglers are notfamiliar with the names of the fish they are most likelyto catch. This has serious implications concerning ourfishery management programs which depend on anglers'compliance with fishing regulations. The effectivenessof the programs depends in part on anglers being ableto recognize regulated species when encountered. (30pp.)
    Keywords: Management ; Fisheries
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  • 122
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    Southern California commercial passenger fishing vessel sampling study Quarterly Report no. 13: July 1 - September 30, 1978 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/69 | 8 | 2011-09-29 22:38:34 | 69 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Between July 1 and September 30, 1978, Departmental personnel sampled catches during 185 trips aboard commercial passenger fishing vessels (partyboats) operating in southern California. A total of 35,984 fishes representing 98 species were identified and measured.Otoliths for age determination studies were removed from 285 rockfish carcasses representing 18 species. In addition, 10 long-range trips originating in San Diego and fishing in Mexican waters were sampled. A total of 957 fishes comprising 17 species were identified and measured at dockside from these vessels.The ten most commonly seen species during the quarter accounted for 83.5% of the southern California catch. The most frequently sampled species were Pacific mackerel, Scomber japonicus (26.5%); kelp bass, Paralabrax clathratus (20.5%); bocaccio, Sebastes paucispinis (8.2%); Pacific bonito, Sarda chiliensis (7.7%); barred sandbass, P. nebulifer (6.7%); olive rockfish, Sebastes serranoides (4.9%); white croaker, Genyonemus lineatus (2.9%); blue rockfish, S. mystinus (2.7%) ; chilipepper, S. goodei (1.8%); and albacore, Thunnus alalunga (1.7%). Data gathered from long-range vessels showed the top five species accounted for 92.6% of the fish sampled.The most frequently sampled species were yellowtail, Seriola dorsalis (61.5%); wahoo, Acanthocybium solanderi (11.7%); albacore (8.3%); yellowfin tuna, T. albacares (6.8%); and giant sea bass, Stereolepis gigas (4.4%). (59pp.)
    Keywords: Management ; Fisheries
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    Southern California partyboat sampling study Quarterly Report no. 10 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/73 | 8 | 2011-09-29 22:37:44 | 73 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Between October 1 and December 31, 1977, Departmentalpersonnel sampled catches during 166 trips aboard commercialpassenger fishing vessels operating in southern California.A total of 27,468 fishes belonging to 101 species wereidentified and measured. Otoliths for age determinationstudies were removed from 263 rockfish carcasses representing 27 species. In addition, 37 long-range trips originating in San Diego and fishing in Mexican waters were sampled. A total of 7,204 fishes comprising 20 species was identified and measured at dockside from these vessels.The 10 most commonly taken species during the quarteraccounted for 74.3% of the southern California catch. Themost frequently sampled species were chilipepper, Sebastesgoodei (16.1%); Pacific mackerel, Scomber japonicus (15.4%) ; bocaccio, Sebastes paucispinis (10.1%); kelp bass, Paralabrax clathratus (7.8%); halfmoon, Medialuna californiensis (5.7%); olive rockfish, Sebastes serranoides (5.4%); blue rockfish, S. mystinus (4.4%); greenspotted rockfish, S. chlorostictus (3.4%); vermilion rockfish, S. miniatus (3.2%); and Pacific bonito, Sarda chiliensis (2.7%). Data gathered from long-range trips showed the top five species accounted for 88.8% of the fish sampled. The most frequently sampled species were yellowtail, Seriola dorsalis (31.0%); yellowfin tuna, Thunnus albacares (23.7%); dolphinfish, Coryphaena hippurus (18.6%); wahoo, Acanthocybium solanderi (10.0%); and snowy grouper, Epinephelus niveatus (5.6%). (67pp.)
    Keywords: Management ; Fisheries
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  • 124
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    Results of the 1977 southern California pismo clam survey (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/75 | 8 | 2011-09-29 22:38:00 | 75 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: A Pismo clam, Tivela stultorum, survey was conductedin January 1977 on selected southern California beaches.Effort and catch information was collected through clammer interviews. Estimates for the two day survey were 1,596clammers spending 2,506 hours to take 6,139 clams. Comparisons were made between the 1977 survey results andprevious surveys.Clams were collected for length and age studies. Complianceto the 4.5-inch (114.3 mm) minimum size limit appeared to be good. (15pp.)
    Keywords: Fisheries ; Biology ; Pismo clam ; Tivela stultorum ; California
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  • 125
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    Ocean shrimp report 1978 season (2021)
    California Department of Fish and Game, Marine Resources Region | Eureka, CA
    In:  http://aquaticcommons.org/id/eprint/71 | 8 | 2011-09-29 22:37:40 | 71 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Statewide Pacific ocean shrimp, Pandalus jordani, landings totaled 13,163,243 lb, down about 2.5 million lb from the 1977 record catch of 15,639,584 lb. However, the 1978 landings were still the second highest on record. Area A (Eureka-Crescent City) landings were the secondhighest in history with landings of 11,101,895 lb. Landings of 2,061,348 lb in Area B-1 (Fort Bragg) broke all existing records for the bed. The previous record was 799,722 lb landed in 1961. No landings were reported for Areas B-2 (Bodega Bay) and C (Avila-Morro Bay). In Area A the average catch per hour for the season for single-rig vessels was 581 lb and 862 lb for double-rig vessels. Area B-1 averagecatch per hour was 819 lb and 1,069 lb per hour for single-rig and double-rig vessels, respectively. Two-year-old (1976 year class) shrimp dominated the catches during the first three months in Area A and throughout the season in Area B-1. One-year-old (1977 year class)shrimp dominated the catches in Area A from July to the end of the season. Catches during the first part of October in Area A fell below the established criteria for keeping the season open. This necessitated closing the season two weeks early. (16pp.)
    Keywords: Fisheries ; Biology
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  • 126
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    Evaluation of regulations concerning the fishery for California halibut, Paralichthys californicus (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/78 | 8 | 2011-09-29 22:38:14 | 78 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Evaluation of the capture of California halibut in relation to Article 13 (Sections 8495, 8496,8497 and 8498) of the Fish and Game Code, shows that the regulation is doing its job. Nearly all undersized (less than 22 inches) juvenile halibut are escaping through the 7 1/2 inch mesh trawl cod end and retention of other fishesseldom approach the 226.8 kg (500 lb) limitimposed by regulation. (5pp.)
    Keywords: Management ; Fisheries ; California halibut ; Paralichthys californicus ; fisheries
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    Southern California partyboat sampling study Quarterly Report no. 12: April 1 - June 30, 1978 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/72 | 8 | 2011-09-29 22:37:42 | 72 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Between April 1 and June 30, 1978, Departmental personnelsampled catches during 148 trips aboard commercial passengerfishing vessels operating in southern California. A total of29,374 fishes representing 97 species were identified andmeasured. Otoliths for age determination studies were removed from 72 rockfish carcasses representing 11 species. In addition, nine long-range trips originating in San Diego and fishing in Mexican waters were sampled. A total of 1,190 fishes comprising 21 species was identified and measured at dockside from these vessels.The 10 most commonly taken species during the quarteraccounted for 76.9% of the southern California catch. The most frequently sampled species were kelp bass, Paralabrax clathratus (21.1%); bocaccio, Sebastes paucispinis (15.5%); Pacific mackerel, Scomber japonicus (13.1%); white croaker, Genyonemus lineatus (6.0%); chilipepper, Sebastes goodei (4.8%); California barracuda, Sphyraena argentea (4.5%); kelp rockfish, Sebastes atrovirens (3.6%); barred sand bass, P. nebulifer (3.2%); halfmoon, Medialuna californiensis (2.6%); and blue rockfish, S. mystinus (2.6%).Data gathered from long-range vessels fishing off Baja California showed the top five species accounted for 94.0% of the fish sampled. The most frequently sampled species were yellowfin tuna, Thunnus albacares (34.4%); yellowtail, Seriola dorsalis (28.7%); wahoo, Acanthocybium solanderi (22.9%); snowy grouper, Epinephelus niveatus (5.9%); and leather bass, E. dermatolepis (2.0%). (69pp.)
    Keywords: Management ; Fisheries
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    Southern California independent sport fishing survey Quarterly Report no. 8 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/81 | 8 | 2011-09-29 22:38:19 | 81 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: During the April 1 - June 30, 1977 quarter, 28 launchramps, hoists, and boat rental locations were sampled300 times. During the sample days 17,354 anglers and853 divers were interviewed. They expended 120,065effort hours and landed 39,369 fishes of 152 identifiedspecies.The ten most commonly landed species were: 1) whitecroaker, Genyonemus lineatus, 25%; 2) Pacific bonito,Sarda chiliensis, 8%; 3) kelp bass, Paralabraxclathratus, 6%; 4) Pacific mackerel, Scomber japonicus,6%; 5) barred sand bass, Paralabrax nebulifer, 4%;6) olive rockfish, Sebastes serranoides, 3%; 7) copperrockfish, S. caurinus, 3%; 8 ) bocaccio, S. paucispinis,3%; 9). vermilion rockfish, S. miniatus, 2%; and 10)greenspotted rockfish, S. chlorostictus, 2%. (22pp.)
    Keywords: Management ; Fisheries
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  • 129
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    Selectivity of gillnets in the California Pacific herring roe fishery (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/80 | 8 | 2011-09-29 22:38:17 | 80 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Pacific herring, Clupea harengus, landings were sampled during the 1976 season in San Francisco, Tomales and Outer Bodega bays. Fish were sampled according to the type of gear used to catch them - - roundhaul nets (purse seines and lamparas), beach seines, and gillnets.Analysis of the data indicated that gillnets caught largerfish and caught more females than did roundhaul nets. In San Francisco Bay, female herring caught by gillnets had a mean body length of 208 mm (8.2 inches) compared to 179 mm (7.0 inches) for roundhaul nets. The sex ratio was 72% females by gillnets to 55% for roundhaul nets. The larger size and larger number of females caught by gillnets resulted in a much higher ripe roe recovery - - an average of 17.2% compared to 9.8% for roundhaul nets by weight of all samples.Although no definite comparisons of size and sex ratio of fish caught by different types of gear could be made in Tomales Bay and Outer Bodega Bay (because of insufficient sampling), herring in gillnet samples were comparable to those of San Francisco Bay in the two measured characters. (9pp.)
    Keywords: Fisheries ; Biology ; Pacific herring ; Clupea harengus ; gillnets ; fisheries
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    Status of the spawning biomass of the Pacific sardine, 1976-77 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/77 | 8 | 2011-09-29 22:38:07 | 77 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: In order to initiate a fishery for the Pacificsardine, Sardinops sagax caeruleus, it is required that the spawning biomass be determined to have reached a minimum of 20,000 short tons. Data from ichthyoplankton surveys, sea survey cruises, the anchovy bait fishery,and jack mackerel purse seine fishery are analyzed for evidence of an increase in population size. The present level of the spawning population of the northern stocks ofsardines is determined to be far below the 20,000 tons required to initiate a fishery. (8pp.)
    Keywords: Fisheries ; Biology ; Pacific sardine ; Sardinops sagax caeruleus ; fisheries
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  • 131
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    Progress report of research on white seabass, Cynoscion nobilis (2021)
    California Department of Fish and Game, Marine Resources Region | Sacramento, CA
    In:  http://aquaticcommons.org/id/eprint/76 | 8 | 2011-09-29 22:38:05 | 76 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: A report is made on the feasibility studies of discriminating possible sub-populations, migratory patterns, and maturity of white seabass, Cynoscion nobilis. Biochemical investigations were encouraging and may prove useful in future studies of population structure. The low catch rate of white seabass in southern California precluded tagging substantial numbers of fish and studies of their migratory habits have been terminated until fishing improves.Insufficient numbers of fish also made successful completion of maturity studies impossible and this project is being held in abeyance at the present time. (16pp.)
    Keywords: Fisheries ; Biology ; White seabass ; Cynoscion nobilis
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  • 132
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    Southern California partyboat sampling study Quarterly Report no. 8 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/82 | 8 | 2011-09-29 22:37:24 | 82 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Between April 1 and June 30, 1977, 125 trips weresampled aboard southern California partyboats by Departmentpersonnel. A total of 14,842 fishes belonging to 72 species was identified and measured. Otoliths wereremoved from 134 rockfish carcasses representing 20species for age deterination studies.The 10 most common species sampled during the quarteraccounted for 76.9% of the catch. Individually, the mostcommon 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 surfaceactivity as it did during the second quarter of 1976 (26pp.)
    Keywords: Management ; Fisheries
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    Results of the jack mackerel subpopulation discrimination feasibility study (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/84 | 8 | 2011-09-29 22:37:18 | 84 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: A report is made on the feasibility of discriminating subpopulations of jack mackerel, Trachurus symmetricus, off of the southern California and Baja California coast. Histochemical, morphometric, and meristic characters are compared from four samples of approximately 200 fish each taken from three areas. The data are analyzed for homogeneity by chi-square tests. Heterogeneity was found only in anal fin ray counts. Recommendations for a comprehensive study are made. (16pp.)
    Keywords: Fisheries ; Biology ; Jack mackerel ; Trachurus symmetricus
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  • 134
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    Southern California partyboat sampling study Quarterly Report no. 7 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/83 | 8 | 2011-09-29 22:37:05 | 83 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: From January 1 through March 31, 1977, Departmentpersonnel made 100 sampling trips aboard southern California partyboats. A total of 16,400 fishes from 68 species was identified and measured.Otoliths, for age determination studies, were removedfrom 301 rockfish carcasses representing 23 species.The 10 most common species sampled during this quarterwere bocaccio, Sebastes paucispinis (38.5%); chilipepper,S. goodei (9.8%); widow rockfish, S. entomelas (7.7%);blue rockfish, S. mystinus (6.2%); olive rockfish, S. serranoides (4.2%); Pacific mackerel, Scomber japonicus (2.8%); vermilion rockfish, Sebastes miniatus (2.7%); speckled rockfish, S. ovalis (2.7%); greenspotted rockfish, S. chlorostictus (2.5%); and squarespot rockfish, S. hopkinsi (2.4%). Fishing effort during this quarter was directed almostexclusively toward "rockcod", as it was for the sameperiod in 1976. (23pp.)
    Keywords: Management ; Fisheries ; sport fishing ; California
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  • 135
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    Southern California partyboat sampling study Quarterly Report no. 3 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/85 | 8 | 2011-09-29 22:37:21 | 85 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: During the period January 1 to March 31, 1976, Departmentpersonnel 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 Californiabarracuda, Sphyraena argentea, and 18 sablefish, Anoplopomafimbria.The five most common species sampled during this periodrepresented approximately 79% of the total number of fishesmeasured. These were, in order of importance; bocaccio,Sebastes paucispinis; chilipepper, Sebastes goodei; oliverockfish, Sebastes serranoides; greenspotted rockfish,Sebastes chlorostictus; and vermilion rockfish, Sebastesminiatus. Bocaccio alone accounted for 52% of the sampledcatch. (15pp.)
    Keywords: Management ; Fisheries
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  • 136
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    Southern California partyboat sampling study Quarterly Report no. 2 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/86 | 8 | 2011-09-29 22:36:47 | 86 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: During the period October 1 - December 31, 1975,Department personnel made 176 sampling trips aboardsouthern California partyboats. A total of 25,721 fishfrom 77 species was identified and measured.Otoliths were removed from 1,767 rockfish carcassesrepresenting 30 species for use in age determination.Sampling personnel tagged and released 192 Californiabarracuda, Sphyraena argentea; 2 white seabass, Cynoscionnobilis; and 29 sablefish, Anoplopoma fimbria.The 10 most common species sampled during this periodrepresented 84% of the total number of fish measured.These were, in order of importance; bocaccio, Sebastespaucispinis; Pacific bonito, Sarda chiliensis; chilipepper,Sebastes goodei; olive rockfish, Sebastes serranoides;vermilion rockfish, Sebastes miniatus, white croaker,Genyonemus lineatus; blue rockfish, Sebastes mystinus;greenspotted rockfish, Sebastes chlorostictus; sculpin,Scorpaena guttata; and Pacific mackerel, Scomber japonicus.Bocaccio alone accounted for 44% of the sampled catch. (20pp.)
    Keywords: Management ; Fisheries
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    Southern California partyboat sampling study Quarterly Report no. 1 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/88 | 8 | 2011-09-29 22:37:03 | 88 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: 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 partyboatswith primary emphasis given to California barracuda, Sphyraena argentea; yellowtail, Seriola dorsalis; white seabass, Cynoscion nobilis; and rockfishes, Sebastes spp. (22pp.)
    Keywords: Management ; Fisheries
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    Status of the spawning biomass of the Pacific sardine, 1975-1976 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/87 | 8 | 2011-09-29 22:36:50 | 87 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: In order to initiate a fishery for the Pacific sardine, Sardinops sajax caeruleus, it is required that the spawning biomass be determined to have reached a minimum of 20,000 short tons. Data from ichthyoplankton surveys, night-light surveys, the anchovy bait fishery, and jack mackerel purse seine fishery are analyzed for evidence of an increase in population size. The present level of the spawning population of the northern stocks of sardinesis determined to be far below the 20,000 tons required toinitiate a fishery. (11pp.)
    Keywords: Fisheries ; Pacific sardine ; Sardinops sajax caeruleus ; fisheries
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  • 139
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    Dungeness crab research program: Report for the year 1975 (2021)
    California Department of Fish and Game, Marine Resources Region | Eureka, CA
    In:  http://aquaticcommons.org/id/eprint/89 | 8 | 2011-09-29 22:36:15 | 89 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: The progress of the research program in the year 1975 is presented. In addition to a report of project studies, discussions of program development, research procedures, and cooperative research efforts are included. The crab critical stage project studies included distribution and relative abundance of larvae and juvenile crabs in the Gulf of the Farallones, San Pablo Bay and San Francisco Bay. Several fish species were identified as crab predators, genetic structure of Dungeness crab populationswere investigated, and growth rates of juvenile crabs were determined. The crab environment project collected historical and recent data on parameters of oceanographic factors including temperatures, salinities, currents, upwelling, sea level, and river flows into the bays and ocean. Environmental toxicant levels in crabs are being determined for a wide spectrum of heavy metals, pesticides, PCB's, and petroleum hydrocarbons.The Marine Culture Laboratory developed techniques for small and large scale culture of crabs from eggs held under controlled conditions to aid in design of laboratory tests of the effects of environmental factors on crab survival. (81pp.)
    Keywords: Fisheries ; Biology ; Gulf of the Farallones ; San Pablo Bay ; San Francisco Bay ; California ; Dungeness crabs ; Cancer magister ; commercial fishery
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  • 140
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    California shellfish importation and planting report 1975-1976 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/91 | 8 | 2011-09-29 22:36:41 | 91 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: The amount of shellfishes imported and planted inState waters is enumerated by species and comparedwith the previous season. Total giant Pacificoyster seed shipments were equivalent to 5,249standard cases, compared with 11,884 standardcases the previous season. Sources of these seedoysters were Japan, Washington State and BritishColumbia, Canada. Adult Eastern oyster shipmentsfrom New York State totaled 442 bushels. (5pp.)
    Keywords: Fisheries ; Aquaculture ; Pacific oyster ; Crassostrea gigas ; Eastern oysters ; Crassostrea virginica ; planting ; California
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  • 141
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    California shellfish importation and planting report 1973-1974 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/92 | 8 | 2011-09-29 22:36:43 | 92 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: The amount of shellfish imported and planted in State waters is enumerated by species and compared with the previous season. Arrangements were made with the Washington State Department of Fisheries to inspect the bulk of the seed oysters originating in Washington State. One shipment of 1,330 cases of Pacific oyster, Crassostrea gigas, seed was imported from Japan. Adult Eastern oysters, Crassostrea virginica, were inspected uponarrival in San Francisco. Experimental studies with seed from mortality resistant parents indicate good survival and growth. (5pp.)
    Keywords: Fisheries ; Aquaculture ; Pacific oyster ; Crassostrea gigas ; Eastern oysters ; Crassostrea virginica ; planting ; California
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  • 142
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    Ocean Shrimp Report 1975 Season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/94 | 8 | 2011-09-29 22:36:06 | 94 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: Statewide Pacific ocean shrimp, Pandalus jordani, landings totaled 4,992,233 lb, a record annual catch that was double the 1974 catch of 2,382,821 lb. Landings for Areas A, B-1, B-2, and C were 3.4, 0.3, 1.2, and 0.06 million lb, respectively. Catch per hour trawled by single gear vessels ranged from 360 to 2,443 lb per hour for the 4areas. The outlook is for good 1976 seasons in Areas A and B-1 if the moderately strong 1974 year class is complemented by strong recruitment of the 1975 year class. Prospects for Areas B-2 and C are not as promising as those of other areas due to weak 1974 year classes. (20pp.)
    Keywords: Management ; Fisheries ; Pacific ocean shrimp ; Pandalus jordani ; California ; fisheries
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  • 143
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    Results of a private boat angling survey for estimating catch and effort, conducted at Oceanside, California during May and June 1974 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/93 | 8 | 2011-09-29 22:36:45 | 93 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Two survey methods (postcard and interview) for generating marine fish catch and effort estimates for privateboats were field tested at Oceanside, California duringMay and June of 1974. Sampling days were pre-assigned toweekday and weekend strata. The postcard survey was shownto produce biased estimates. Causes of the various biasesare discussed. The interview survey provided backgrounddata to test for biases in the postcard survey andbetween marina an launch ramp interview areas. (31pp.)
    Keywords: Management ; Fisheries ; Oceanside ; California ; sport fishing
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  • 144
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    Diablo Canyon power plant site ecological study Quarterly Report no. 10; October - December 31, 1975 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/96 | 8 | 2011-09-29 22:36:03 | 96 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: Field work during the quarter included surveys of permanentand random subtidal and intertidal stations. At permanentsubtidal stations densities of the brown algae Laminaria and Nereocystis decreased as did densities of giant red sea urchins, Strongylocentrotus franciscanus.Counts of small invertebrates within one-quarter meter square (1/4-m2) quadrats at random subtidal stations were begun. A total of 32 quadrats was completed. Balanophyllia elegans was the most abundant and most common animal encountered. The annual surface count of bull kelp (Nereocystis) was not possible because of the increased density; instead we utilized subtidal counts toestimate the surface canopy. An estimate of 33,000 plants was made for this year's canopy; this compares with a count of 18,000 plants last year. Sampling of random intertidal stations for the Davidson period began; 15 stations were surveyed. In addition, permanent intertidal stations 1, 2 and 3 were surveyed for abalone densities.The sea otter, Enhydra lutris, herd continued to occupy the area around Point Buchon.In November daily observations were initiated on foam location and abundance in Diablo Cove. (13pp.)
    Description: Pacific Gas and Electric Company Cooperative Research Agreement 5-11-75
    Keywords: Ecology ; Fisheries ; Environment ; Diablo Canyon Power Plant ; California ; environmental impact
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  • 145
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    Results of the 1976 southern California pismo clam census (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/95 | 8 | 2011-09-29 22:36:12 | 95 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: A Pismo clam, Tivela stultorum, census was conductedin January 1976 on selected southern California beaches.Effort and catch information was collected throughclamer interviews. Estimates for January 17 on beachessampled were 3,296 clammer-hours, 2,170 clammers, and10,739 legal clams (4.5 inches or larger) harvested.Clams were collected for age and growth studies.Samples of clams from the Long Beach to Newport Beach pierarea demonstrate the fastest growth rates of any Pismoclams reported in the literature. Clams begin to be recruited to the fishery at age 40 months. (14pp.)The 1974 year class was the largest on beachessampled. Recruitment to the fishery will be poor for the1976-77 and 1977-78 seasons and clamming will be dependenton large older clams.
    Keywords: Fisheries ; Aquaculture ; Pismo clam ; Tivela stultorum ; California
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  • 146
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    The Pacific herring, Clupea harengus pallasi, open pound roe-on-kelp experimental fishery in San Francisco Bay, 1988 to 1989 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/102 | 8 | 2011-09-29 22:35:35 | 102 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: The experimental open pound herring roe-on-kelp(ROK) fishery was studied in San Francisco Bay fromthe second week of December 1988 through the thirdweek of February 1989.Three spawning runs were fished successfully byfour operations consisting of six permittees. Atotal of 47.1 tons of herring ROK was packed thisseason.Giant kelp, Macrocystis sp., was harvested from theSanta Barbara Channel Islands and trucked to SanFrancisco for hanging on the pounds. Sources ofhigh-quality giant kelp in California weredifficult to locate this season because ofunfavorable oceanographic conditions during thewinter months.ROK was sampled at each shoreside processingfacility. There were no significant differences inROK blade measurements or roe densities among thepermittees. ROK densities ranged from 0.250 to0.699 g/cm2.Plastic totes containing processed ROK averaged1756 lbs total gross weight. Totes contained anaverage of 42.3% ROK by weight.Siltation of ROK harvested in south San FranciscoBay continued to be a problem. High winds damagedrafts in December 1988. Gear conflicts werereported between ROK and herring roe permittees. (25pp.)
    Keywords: Fisheries ; Pacific herring ; Clupea harengus pallasi ; San Francisco Bay ; California
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  • 147
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    Pacific herring, Clupea harengus pallasi, experimental roe-on-kelp open pound fishery studies in San Francisco Bay, December 1987 to February 1988 (2021)
    California Department of Fish and Game, Marine Resources Region | Bodega Bay, CA
    In:  http://aquaticcommons.org/id/eprint/103 | 8 | 2021-02-27 19:29:20 | 103 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: The experimental open pound herring roe-on-kelp (ROK) fishery was studied in San Francisco Bay from mid December 1987 to mid February 1988. Five different harvests were observed and sampled. A total of 19.7 tons of Macrocystis sp. kelp covered with herring eggs was processed during this period.Kelp harvested from the Santa Barbara Channel Islands wastransported to San Francisco Bay for hanging on the pounds.Weather conditions at the channel islands affected the condition and dimensions of the harvested kelp. Once suspended on the pounds in bay waters, the cut kelp deteriorated in 8 to 10 d. Based on our sampling, an average of 0.98 tons of kelp with a total blade surface area of 3031 m2 was suspended from each pound.ROK was sampled at the shoreside processing facility. Densities of attached eggs ranged from light (less than three layers) to heavy (more than six layers) for the five different spawns. Egg coverage on each pound also varied; kelp towards the middle portion of the pound received heavier deposition of eggs. Average weight increase from egg deposition, per blade, was 780% with the kelp weighing an average of 12.2% of the total. An average 13.2% by weight was trimmed during processing. A multiplication factor of 0.206 should be used to convert individual roe herring allotments to ROK allotments.Standard plastic totes containing processed ROK averaged 1783 lb total gross weight. Totes contained an average of 49.7% ROK by weight. Samples of roe-on-kelp increased an average of 10.9% in weight after brining during processing. (35pp.)
    Keywords: Fisheries ; Pacific herring ; Clupea harengus pallasi ; San Francisco Bay ; California
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  • 148
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    Status of Pacific Mackerel spawning population, 1976 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/132 | 8 | 2021-02-27 19:36:05 | 132 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: In order to initiate a fishery for the Pacific mackerel, Scomber japonicus, it is required that the spawning biomass be determined to have reached 10,000 short tons. Tag and recovery data and jack mackerel, Trachurus symmetricus, fishery data are analyzed for evidence of an increase in Pacific mackerel population size. The present level of the spawning population of Pacific mackerel, although larger than in recent years, is determined to fall short of the 10,000 tons needed to initiate a fishery. (24pp.)
    Keywords: Management ; Fisheries ; Pacific mackerel ; Scomber japonicus ; Jack Mackerel ; Trachurus symmetricus ; fisheries
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  • 149
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    Mendocino power plant site ecological study, Quarterly Report No. 5; July 1 - September 30, 1972 (2021)
    California Department of Fish and Game, Marine Resources Region | LOng Beach, CA
    In:  http://aquaticcommons.org/id/eprint/138 | 8 | 2011-09-29 22:32:03 | 138 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: This report is the fifth quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecological study to establish a base line inventory of the marine biotawith special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover all work from September 1971 through December 1972. Full tables and species lists will be included in each annual report.
    Description: 10pp.
    Keywords: Ecology ; Fisheries ; Mendocino Power Plant ; California ; environmental impact
    Repository Name: AquaDocs
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  • 150
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    Southern California partyboat sampling study Quarterly Report no. 6 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/136 | 8 | 2011-09-29 22:32:00 | 136 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: From October through December 1976, Department personnelmade 160 sampling trips aboard southern California partyboats. A total of 25,574 fishes from 80 species was identified and measured. Also, otoliths were removed from 722 rockfish carcasses representing 28 species for use in age determination studies.The 10 most common species sampled were bocaccio, Sebastespaucispinis (33.3%); chilipepper, S. goodei (16.0%); oliverockfish, S. serranoides (6.1%); kelp bass, Paralabrax clathratus (4.6%); blue rockfish, S. mystinus (4.5%); Pacific mackerel, Scomber japonicus (4.4%); widow rockfish, S. entomelas (2.4%); vermilion rockfish, S. miniatus (2.0%); ocean whitefish, Caulolatilus princeps (1.9%); and greenstriped rockfish, S. elongatus (1.9%).The sampled quarter represented a transitional period inthe partyboat fishery during which effort shifted from "surface" fishing to deep water "rockcod" fishing. (23pp.)
    Keywords: Management ; Fisheries
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  • 151
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    Southern California independent sportfishing survey Quarterly Report no. 6 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/137 | 8 | 2011-09-29 22:32:01 | 137 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: During the October 1 - December 31, 1976 quarter,28 launch ramps, hoists, and boat rental locations were sampled a total of 182 times. During the sample days 8,299 anglers and 1,172 divers were interviewed. They expended 62,073 effort hours and landed 26,788 fishes of 149species.The ten most commonly landed species were: 1)white croaker, Genyonemus lineatus, 14%; 2) oliverockfish, Sebastes serranoides, 6%; 3) Pacificmackerel, Scomber japonicus, 5%; 4) rock scallop,Hinnites multirugosus, 4%; 5) bocaccio, Sebastespaucispinis, 4%; 6) copper rockfish, S. caurinus,4%; 7) red abalone, Haliotis rufescens, 3%;8)kelp bass, Paralabrax clathratus, 3%; 9) barred sand bass, P. nebulifer, 3%; and 10)ocean whitefish, Caulolatilus princeps, 3%. (22pp.)
    Keywords: Management ; Fisheries ; sportfishing ; California
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  • 152
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    Diablo Canyon power plant site ecological study Quarterly Report No. 14 (2021)
    California Department of Fish and Game, Marine Resources Region | Avila Beach, CA
    In:  http://aquaticcommons.org/id/eprint/134 | 8 | 2011-09-29 22:31:37 | 134 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: We surveyed eight of the permanent subtidal stations, and spent considerable time replacing surface and subsurface buoys on these stations. Little change was evident in densities of quantified invertebrates. Densities of some of the brown algae continued to increase. Surveys of random 30-m2 subtidal stations in the North Control were completed.Davidson current oceanographic period intertidal surveys were begun. High seas prevented us from occupying stations on several days of excellent minus tides; however, 12 random and 4 permanent stations were surveyed. The annual census of bull kelp, Nereocystis luetkeana, yielded a count of 11,323 surface canopy plants, a decrease from last year's estimate. Foam observations were continued in Diablo Cove. (15pp.)
    Keywords: Ecology ; Fisheries ; Diablo Canyon Power Plant ; California ; environmental impact
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  • 153
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    Mendocino power plant site ecological study, Quarterly Report No. 1; July 1 - September 30, 1971 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/141 | 8 | 2011-09-29 22:32:09 | 141 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: This report is the first quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecologicalstudy to establish a base line inventory of the marine biota with special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover all work from September 1971 through December 1972. Full tables and species lists will be included in each annual report.
    Description: 13pp.
    Keywords: Ecology ; Fisheries ; Mendocino Power Plant ; California ; environmental impact
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  • 154
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    Mendocino power plant site ecological study, Quarterly Report No. 3; January 1 - March 31, 1972 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/142 | 8 | 2011-09-29 22:31:31 | 142 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: This report is the third quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecological study to establish a base line inventory of the marine biotawith special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover work through December 31, 1972. Full tables and species lists will be included in each annual report. Complete records of observations and measurements are kept in files at the Marine Resources Laboratory, Monterey.
    Description: 10pp.
    Keywords: Ecology ; Fisheries ; Mendocino Power Plant ; California ; environmental impact
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  • 155
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    Conversions between total, fork, and standard lengths for 41 species in 15 families of fish from California using preserved and fresh specimens (2021)
    California Department of Fish and Game, Marine Resources Region | Fort Bragg, CA
    In:  library@mlml.calstate.edu | http://aquaticcommons.org/id/eprint/144 | 8 | 2021-02-27 19:29:51 | 144 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: Tables of regression values for converting between total, fork, and standard lengths are provided for 41 species of fish from 15 families using preserved and fresh specimens of fish. A table is also included for converting between body length and total length for Pacific herring, Clupea harengus pallasii. (17pp.)
    Keywords: Fisheries ; Biology
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  • 156
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    Southern California independent sport fishing survey Quarterly Report No. 7 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/145 | 8 | 2011-09-29 22:31:16 | 145 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: During the January 1 - March 31, 1977 quarter,28 launch ramps, hoists and boat rental locations were sampled 166 times. During the sample days 9,209 anglers and 496 divers were interviewed. They expended 61,347 effort hours and landed 22,454 fishes of 133 identified species.The ten most commonly landed species were: 1) white croaker, Genyonemus lineatus, 16%; 2) Pacific bonito, Sarda chiliensis, 7%; 3) blue rockfish, Sebastes mystinus, 5%; 4) olive rockfish, S. serranoides, 5%; 5) ocean whitefish, Caulolatilus princeps, 5%; 6) barred sand bass, Paralabrax nebulifer, 5%; 7) Pacific mackerel, Scomberjaponicus, 3%; 8) bocaccio, Sebastes paucispinis, 3%; 9) kelp bass, Paralabrax clathratus, 3%; and10) copper rockfish, Sebastes caurinus, 3%. (23pp.)
    Keywords: Management ; Fisheries
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  • 157
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    California shellfish importation and planting report 1971-1972 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/148 | 8 | 2011-09-29 22:29:54 | 148 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: 6pp.
    Keywords: Fisheries ; Aquaculture ; Pacific oyster ; Crassostrea gigas ; Eastern oysters ; Crassostrea virginica ; planting ; California
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  • 158
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    Diablo Canyon power plant site ecological study annual report; July 1, 1973 - June 30, 1974 (2021)
    California Department of Fish and Game, Marine Resources Region | Sacramento, CA
    In:  http://aquaticcommons.org/id/eprint/147 | 8 | 2011-09-29 22:31:06 | 147 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: We completed surveys of 11 permanent subtidal stations, 17 random subtidal stations, 4 permanent intertidal stations, and 29 random intertidal stations during the period. In addition, we conducted studies on the sea otter, Enhydra lutris, herd located between Diablo Cove and Point Buchon, continued the annual count of the mature bed of the bullkelp, Nereocystis luetkeana, within Diablo Cove, and interviewed commercial abalone and sea urchin divers for catch-per-unit-of-effort data. During the year, sea otters moved south into the cove east of Lion Rock and then into Diablo Cove. (107pp.)The commercial abalone fishery showed signs of decline, while the commercial sea urchin fishery continued to expand. Several diving surveys were conducted inside Intake Cove to check on dredging progress; the cove appears to have become a haven for juvenile rockfish (Sebastes). The red abalone temperature tolerance studies were completed at the Department's marine culture laboratory at Granite Canyon.
    Keywords: Ecology ; Fisheries ; Biology ; Diablo Canyon Power Plant ; California ; environmental impact
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  • 159
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    Ocean shrimp report 1977 season (2021)
    California Department of Fish and Game, Marine Resources Region | Eureka, CA
    In:  http://aquaticcommons.org/id/eprint/156 | 8 | 2011-09-29 22:29:59 | 156 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: Statewide Pacific ocean shrimp, Pandalus jordani, landingstotaled 15,639,585 lb, more than triple the 1975 record catch of 4,992,233 lb. Record landings were recorded in Area A (Eureka-Crescent City), Area B-2 (Bodega Ray) with catchestotaling 13,025,844 and 2,028,607 lb, respectively. Area B-1(Fort Bragg) landings totaled 585,133 lb and no landings were reported from Area C (Avila-Morro Bay). In Area A the average catch per hour for the season for single-rig vessels was 1,241 lb and 2,228 lb for double-rig vessels. Area B-2 average catch per hour by the single-rig vessels was 2,536 lb. Two-year-old (1975 year class) shrimp dominated the catches in all areas. The outlook for the 1978 season in all areas is questionable because of the relatively weak showing of the incoming 1977 year class but it might make a significant contribution if abundant and of a marketable slze. (19pp.)
    Keywords: Management ; Fisheries
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  • 160
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    Mendocino power plant site ecological study final report (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/146 | 8 | 2011-09-29 22:31:04 | 146 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: A preoperational ecological study of a proposed nuclear power plant site on the Mendocino County coast was initiated in September 1971. The study resulted from an agreement between the Pacific Gas and Electric Company and the California Department of Fish and Game signed in July 1971. In the agreement, Pacific Gas and Electric Company provided funds for the Department's studies of the site.Studies of the subtidal animal and plant communities were conducted by divers from September 1971 through March 1973; intertidal animal and plant populations were surveyed from November 1971 through February 1973. Sportfisheries for abalone and finfish were surveyed during 1972 and Spring of 1973. Stomach contents of many of the more abundant subtidal and intertidal fishes were examined. All of these studies were designed to determine the dominant species of plants, invertebrates and fishes in the various communities, their relative abundance, and where applicable, size composition, predators and competitors.The parameters developed from these studies would be used for comparison with similar studies conducted after the proposed plant went into operation to determine what effect construction and operation of the plant might have on the various plants and animals studied. (291pp.)
    Keywords: Ecology ; Fisheries ; Biology ; Nuclear power plants ; environmental impact ; Mendocino County ; California
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  • 161
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    Southern California partyboat sampling study Quarterly Report No. 5 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/157 | 8 | 2011-09-29 22:30:35 | 157 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: From l July through 30 September, 1976, Department personnelmade 138 sampling trips aboard southern Californiapartyboats. A total of 15,827 fishes from 75 species wasidentified and measured.Otoliths were removed from 290 rockfish carcasses representing 23 species for use in age determination studies.The 10 most common species sampled during this quarterwere kelp bass, Paralabrax clathratus (22.9%); barred sandbass, P. nebulifer (13.7%); olive rockfish, Sebastes serranoides (12.0%); bocaccio, S. paucispinis (1l.6%); Pacific bonito, Sarda chiliensis (6.6%); California barracuda, Sphyraena argentea (5.9%); white croaker, Genyonemus lineatus (4.5%); blue rockfish, S. mystinus (2.9%); brown rockfish, S. auriculatus (2.8%); and ocean whitefish, Caulolatilus princeps (2.8%).Preliminary results from California partyboat logs indicate landings of Pacific bonito, California barracuda, kelp bass, and barred sand bass were significantly larger than those of 1975, while the low catch rates of yellowtail and white seabass remained approximately equal to those of the previous season. (27pp.)
    Keywords: Management ; Fisheries
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  • 162
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    Southern California independent sportfishing survey Quarterly Report No. 5 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/151 | 8 | 2011-09-29 22:30:39 | 151 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: During the July 1 - September 30, 1976 quarter, 28launch ramps, hoists, and boat rental locations weresampled a total of 324 times. During the sample days26,136 anglers and 1,353 divers were interviewed. Theyexpended 188,251 effort hours and landed 63,942 fishesof 162 species.The ten most commonly landed species were: 1) whitecroaker, Genyonemus lineatus, 27%; 2) Pacific bonito,Sarda chiliensis, 7%; 3) kelp bass, Paralabrax clathratus,7%; 4) olive rockfish, Sebastes serranoides, 4%;5) bocaccio, S. paucispinis, 4%; 6) barred sand bass,Paralabrax nebulifer, 4%; 7) California barracuda,Sphyraena argentea, 3%; 8) copper rockfish, Sebastescaurinus, 2%; 9) kelp rockfish, S. atrovirens, 2%;10) vermilion rockfish, S. miniatus, 2%. (22pp.)
    Keywords: Management ; Fisheries ; sportfishing ; California
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  • 163
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    Ocean shrimp report 1976 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/153 | 8 | 2011-09-29 22:30:43 | 153 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: Statewide Pacific ocean shrimp, Pandalus jordani, landingstotaled 3,400,191 lb, down from the 1975 record catch of4,992,233 lb but well above the 10-year (1966-1975) mean of2.6 million lb. Landings from Areas A (Eureka-Crescent City)and B-1 (Fort Bragg) were 2.7 and 0.7 million lb, respectively. Only negligible amounts were landed in Areas B-2 (Bodega Bay) and C (Avila-Morro Bay). In Areas A and B-1 catch per hour trawled by single-rig vessels ranged from 294 to 1,803 lb while catch per hour by double-rig vessels ranged from 431 to 3,428 lb. Two-year-old (1974 year class) shrimp dominated the catches during the first part of the season, but 1-year-old (1975 year class) shrimp dominated the catches from August to October. The outlook for the 1977 season in Areas A, B-1 and B-2 is good because of the strong showing of the 1975 year class. (15pp.)
    Keywords: Fisheries
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  • 164
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    Southern California partyboat sampling study Quarterly Report No. 4 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/150 | 8 | 2011-09-29 22:30:37 | 150 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: From 1 April through 30 June, 1976, Departmentpersonnel made 146 trips aboard southern Californiapartyboats. A total of 18,218 fishes from 76 specieswas identified and measured.Otoliths were removed from 674 rockfish carcassesfor use in age determination studies.The 10 most common species sampled during thisquarter represented 85.2% of the total number of fishesmeasured. 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 vermilionrockfish, Sebastes miniatus. Pacific bonito and California barracuda partyboatlandings exceeded those of the entire 1975 season, andsampling data indicate the average length of barracudacaught from partyboats was significantly larger thanthat of the previous season. (15pp.)
    Keywords: Management ; Fisheries
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  • 165
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    Diablo Canyon power plant site ecological study annual report; July 1, 1974 - June 30, 1975 and Quarterly Report no. 8 April 1, 1975 - June 30, 1975 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/152 | 8 | 2011-09-29 22:30:41 | 152 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: We continued surveys of permanent and random subtidal stations, completing surveys of 13 permanent stations and 28 random stations during the year. Red abalone numbers continued to decline in Diablo Cove and Control Areas. Giant red sea urchins declined at permanent stations. The bull kelp canopy increased noticeably in Diablo Cove.Most of our time was spent surveying intertidal stations andprocessing algae samples. Both red and black abalone showeda decrease in numbers in Diablo Cove as well as the ControlArea.Sea otters moved north of Diablo Cove to the Pt. Buchon areain the fall of 1974. In the spring of 1975 the rafts movedsouth again to the vicinity of Pecho Rock.The commercial sea urchin fishery was inactive during most of the year, while the commercial abalone fishery operated at a very low level.Several miscellaneous studies were continued or initiated during the period. 112pp.)
    Keywords: Ecology ; Fisheries ; Diablo Canyon Power Plant ; California ; environmental impact
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  • 166
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    Diablo Canyon power plant site ecological study Quarterly Report No. 13; July 1 - September 30, 1976 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/159 | 8 | 2011-09-29 22:29:52 | 159 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: Surveys of 39 random 30-m2 subtidal stations and 56 random1/4-m2 subtidal stations in Diablo Cove and the North Control were completed.The mean density of red abalones, Haliotis rufescens, inDiablo Cove was greater this year (0.02/m2) than last year(0.005/m2). This difference probably reflects sampling variation rather than density change.A total of 29 sportfish catch-per-unit-of-effort stations was sampled in Diablo Cove and 12 in the North Control.Foam observations in Diablo Cove were continued. The coolingwater pumps were not in operation. The amounts of foamappeared to be about the same during certain weather conditions as those when the pumps are in operation, although not as thick.The number of sea otters, Enhydra lutris, decreased substantially between Pt. Buchon and Pecho Rock. This was due to their annual migration (or "pulling back") into the more central parts of their range.Random surveys of the intertidal areas during the upwellingperiod were completed. (11pp.)
    Keywords: Ecology ; Fisheries ; Biology ; Diablo Canyon Power Plant ; California ; environmental impact
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  • 167
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    Dungeness crab research program: report for the year 1978 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/176 | 8 | 2011-09-29 22:29:13 | 176 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: The central California Dungeness crab resource had another season (1977-78) of low harvestable yield, 619,582 lb; while that off northern California yielded a higher than average seasonal harvest in excess of 13 million lb.Crab egg hatching peaked in late December 1977. A tongue of freshwaterrun-off from San Francisco Bay aided the offshore movement of zoeae.No stage IV or V zoeae were taken in plankton tows, and only three megalopae were collected in the Gulf of the Farallones. The heavy winter rainfall reduced salinities of the Bay-estuarine complex, and no juvenile crabs were taken east of the Carquinez Bridge. By May most of the 1977year class crabs had migrated into the Gulf. The first post-larval crabs of the 1978 year class appeared in May, 1 month later than in 1977. Both trawl and fish stomach samples revealed the 1978 year class to be weak as was that of 1976.A comparison of ocean temperatures with crab landings, considered with evidence of laboratory experiments with crabs in various water temperatures, suggests that the extensive period (1957-72) of warmer water could be an explanation for the crab decline. Crabs held in the laboratory spawned, molted and spawned again, producing fertilized eggs without having mated after molting.Bioassays of crabs exposed to cadmium and silver show that the concentration lethal to 50% of the crabs within 96 hr was 6.8 mg/l for cadmium and 0.19 mg/l for silver. Levels of cadmium in hepatopancreas tissue of crabs used in acute bioassay reveal in excess of 20 times the concentrationof cadmium in the seawater within 24 hr.Larvae cultured in the laboratory at ambient seawater temperature, (9 to 14 C) took approximately 60 days to develop from first stage zoeae to the megalopal stage, while larvae at 17 C took 31 days. (28pp. Harold G Orcutt(ed))
    Keywords: Fisheries ; Biology
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  • 168
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    A re-survey of the marine environment offshore from Point Loma, San Diego County (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/183 | 8 | 2011-09-29 22:28:21 | 183 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: The California Department of Fish and Game and the State Water Quality Control Board (through Regional Board No. 9 - San Diego) entered into an agreement 1 July 1970, whereby Department biologist-divers would resurvey the marine environment off the western shore of Point Lorna, San DiegoCounty, California. The investigation was to consist of a comparison of present conditions to those found in 1965 (Turner, Ebert and Given, 1968). This information would then be used by the Board to evaluate environmentalchanges (if any) which have occurred following the operation of the Point Loma ocean outfall.Determinations to be made at each station included, but were not limited to: (i) the number and diversity of plant and animal life; (ii) substrate characteristics; and (iii) physical conditions of the water.The Board reimbursed the Department for part of the expenses incurred during the course of this investigation.
    Description: 79pp.
    Keywords: Ecology ; Fisheries ; Biology ; Point Loma ; California ; outfalls
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  • 169
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    A survey of the marine environment near the city of Monterey ocean outfall (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/173 | 8 | 2011-09-29 22:28:55 | 173 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidalecological investigation of the marine environment in the vicinity of the City of Monterey ocean outfall. The objective of the study was to provide the Regional Water Quality Control Board with data to assist them in evaluating the effects of the discharge on the marine environment.The determinations made by biologist-divers included: (i) the number and diversity of the plant and animal life; (ii) substrate characteristics; and (iii) physical parameters, including water temperature, dissolved oxygen levels and clarity. Additionally, benthic samples wereobtained by the divers and/or by a Ponar grab at each station.The State Water Resources Control Board reimbursed the Department for part of the expenses incurred during this study. (27pp.)
    Keywords: Ecology ; Fisheries ; Biology ; Monterey ; California ; outfalls
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  • 170
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    A summary of the dungeness crab research program 1974-1980 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/175 | 8 | 2011-09-29 22:29:11 | 175 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: In 1974, the State Legislature directed the Department of Fish and Game to investigate causes of a long-term decline in Dungeness crab, Cancer magister, commercial fishery landings in central California. The Departmentestablished the Dungeness Crab Research Program which conducted investigations on crab life history, pollution, and oceanography.Genetic studies to determine if there were different stocks along the coast were inconclusive. Early larval stages (zoeae) drifted progressively offshore as they developed. The last stage larvae (megalopae) were foundin nearshore waters. San Francisco Bay was determined to be an important nursery ground for juvenile crabs which contribute substantially to the local coastal adult stock. Many species of fish were found to prey upon larval and juvenile crabs. Silver salmon preyed heavily upon megalopae.Chlorine-treated sewage wastes slowed responses of juvenile crabs but present waste treatment practices (dechlorination before discharge) apparently are not harmful. No harmful effects of other pollutants (traceelements, pesticides, PCB's, and oil) were detected at levels which were found in crab tissues and the Bay environment.A long-term oceanographic change, characterized by increased ocean temperatures and stronger northward-flowing winter currents was found to coincide with the crab decline. These conditions appear to have biologicaleffects on crabs. San Francisco crabs were found, on the average, to have smaller ovaries than Eureka crabs. In the laboratory, crab egg mortality was greater in increased seawater temperatures.Overall conclusions are that the primary factors responsible for the crab decline are long-term changes in ocean conditions which have affected egg production and survival, and distribution of larvae.(16pp.)
    Keywords: Fisheries ; Biology ; Dungeness crab ; Cancer magister ; commercial fishery
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  • 171
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    Dungeness crab research program: report for the period January 1 - August 31, 1979 (2021)
    California Department of Fish and Game, Marine Resources Region | Sacramento, CA
    In:  http://aquaticcommons.org/id/eprint/174 | 8 | 2011-09-29 22:29:09 | 174 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: The central California Dungeness crab, Cancer magister, resource experienced its 18th successive season of very low harvestable yield.Plankton sampling efforts were concentrated on late stage larvae and megalopae. The 1979 year-class developed during a period of relatively cold oceanic water, particularly when compared with the previous year. Hatching probably occurred during the first 2 weeks in January. Small quantities of early stage zoeae were found in the Gulf of the Farallones in January, but were virtually gone by the beginning of March. Dispersion of late stage zoeae into offshore waters was substantial in central and northern California and the pattern of dispersion appeared to be similar in both areas. By late April megalopae were foundat high densities along the central California coast.Juvenile crab studies comparing 1977 with 1978 demonstrated that the l977 year-class was substarrtially more abundant (4 to 1) than 1978; they showed that the centers of crab concentration were located in the northernportions of the San Francisco Bay estuarine complex and moved farther up the estuary during the drought (1977); they found that sex ratios favored males in 1977 but were 1 to 1 in 1978; and growth rates were found to begreater for males than females after 1 year of age.A study on the staging of intermolt megalopae showed the sequence of stages to be a clear developmental process. The length of the stages was determined and the distribution of field-collected megalopae from 1977plotted. Megalopae in San Francisco Bay, just outside the mouth of the Bay, and in Drakes Bay generally were the closest to molting to the first crab instar. A large number of megalopae collected west of Pt. Reyes were in earlier stages of development.Stomach content analysis from demersal fishes supported findings from the plankton samples that the 1979 year-class is relatively strong.(56pp. Farley, Timothy A. (ed))
    Keywords: Fisheries ; Biology ; Dungeness crab ; Cancer magister
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  • 172
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    A survey of the marine environment near the city of Watsonville ocean outfall (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/185 | 8 | 2011-09-29 22:23:34 | 185 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidal ecological investigation of the marine environment in the vicinity of the city of Watsonville ocean outfall in Monterey Bay. Theobjective of the study was to provide the Regional Water Quality Control I Board (RWQCB) with data to assist them in evaluating the effects of the discharge on the marine environment at four stations selected by theRWQCB around the outfall terminus (Figure 1).The determinations made by biologist-divers included: (i) the number and diversity of the plant and animal life; (ii) substrate characteristics; and (iii) physical parameters, including water temperature and clarity.Additionally, benthic samples were obtained, both by the divers and by a Ponar grab, at each station.The State Water Resources Control Board reimbursed the Department for expenses incurred during this study. The work was performed by California Department of Fish and Game biologists from the Department's research vessel KELP BASS.
    Description: 13pp.
    Keywords: Ecology ; Fisheries ; Biology ; Watsonville ; California ; outfalls
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  • 173
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    Dungeness crab research program; Report for the year 1977 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/184 | 8 | 2011-09-29 22:23:32 | 184 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: All 1977 year class larval stages, except fifth zoeae,occurred in the study area. California Cooperative OceanicFisheries Investigations (CalCOFI) plankton samples of February 1950, taken 67 and 111 miles off San Francisco, contained fifth stage zoeae and megalopae. Megalopae and early post-larval forms were found inshore and in the San Francisco-San Pablo Bay complex in the spring. The zoeae drifted offshore and later appeared inshore or were replaced by megalopae from without the study area. An invasion of warm water into the Gulf of the Farallones in lateJanuary and February may have accelerated development to the first crab stage, and zooplankters of oceanic and warm waters were found in association with crab zoeae. Eighty percent of a strong 1977 year class entered the Bay complex.Regression analyses were computer run comparing crab landings to quarterly oceanographic parameters coinciding with specific life history phenomena. Sea levels, indicators of ocean currents, are highly correlated to landings and also appear to be partly responsible for some high coefficient of determination values in multiple regressions. Crabs held at controlled temperatures revealedegg development, spawning, and feeding rates are affected by increased temperature. Crab mating success was 90% in the San Francisco area, and small samples from Eureka revealed similar success. Smaller ovaries in central California crabs prompt study of the possibility of lowered reproductive potential.Background levels of cadmium in juvenile crabs and water inwhich they were reared at the Marine Culture Laboratory were determined prior to beginning bioassays. Range-finding bioassays determined 10 mg/l of cadmium a mid-point for full-scale bioassays. Higher levels of petroleum hydrocarbons in the larger juvenile crabs from San Francisco Bay suggest crabs there acquire large hydrocarbon burdens.Satisfactory methods of rearing zoeal stages of crab weredeveloped, and refinement of culture techniques was made for megalopae and post-larval instars. (59pp.)
    Keywords: Fisheries ; Biology ; Dungeness crab ; Cancer magister ; commercial fishery
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  • 174
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    Dungeness crab research program: Report for the Year 1976 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/186 | 8 | 2011-09-29 22:23:36 | 186 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: All larval stages of the 1976 year class, with the exception of the 5th zoeal stage, were found in Gu1f waters January through March. The first post-larval stage was collected in San Pablo Bay in May. Fifty percent of 1976 year class crabs entered the Bay complex as compared to nearly 80% in 1975. The 1976 year class appears relatively weak. No electrophoretic polymorphism was found in Cancer magister to be of value in Dungeness crab population determinations.Multi-variate correlations comparing crab landings with an array of oceanographic parameters and the crab density dependent factor were computer-run for both northern and central California. The most significant correlating factors at the time late stage larvae prevail were sea level and atmospheric pressure for central California and, for northern California, the density dependent factor and sea surface temperature. Female crabs held at controlled temperatures indicated gonad maturation and spawningmay be induced by increased temperature. Analyses of crabtissues revealed burdens of petroleum hydrocarbons, silver,selenium, cadmium, and PCB's higher in central California crabs, while DDE was found in higher amounts in northern California crab tissue.Thru-flow culture systems were developed which should yield about 163 megalopae of Dungeness crabs in 63 days from 1,200 laboratory hatched zoeae.(46pp.)
    Keywords: Fisheries ; Biology ; Dungeness crab ; California ; Cancer magister ; fisheries
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  • 175
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    Diablo Canyon power plant site ecological study; Quarterly Report No. 11; January 1 - March 31, 1976 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/187 | 8 | 2011-09-29 22:23:56 | 187 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: Permanent subtidal stations 6, 11 and 16 were surveyed. Appreciable increases in densities of one species of brown algae and five species of macroinvertebrates were noted at station 6.Winter surveys of random and permanent intertidal stations were completed. There was little or no change in black and red abalone, Haliotis cracherodii and H. rufescens, densities at the various random study areas. There was a noticeable increase in black abalone numbers at permanent station 2A located in North Diablo Cove. Three new permanent stations were established and counts of abalone completed.Approximately 100 sea otters, Enhydra lutris, have moved from the Point Buchon area to the area around Pecho Rock.We fished at 13 random stations in Diablo Cove and five stations in North Cove and North Control to determine the catch rate of common sport fishes.A good percentage of the 1975 bull kelp, Nereocystis luetkeana, population weathered the winter storms. We calculated an approximate 18% over-wintering survival rate.Daily observations of foam in Diablo Cove continued; large amounts of piled-up foam have been observed during low tides in the South Diablo intertidal during periods of northwesterly winds. On a recent reconnaissance dive in Intake Cove, fish numbers appeared to be on the increase and visibility appeared to be improving. (15pp.)
    Keywords: Ecology ; Fisheries ; Biology ; Diablo Canyon Power Plant ; California ; environmental impact
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  • 176
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    Ocean shrimp report 1972 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/191 | 8 | 2011-09-29 22:24:12 | 191 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: California's 1972 ocean shrimp landings totaled 2,488,683 pounds, a decrease of 585,857 pounds from the 1971 season when 3,074,540 pounds were landed. The decrease resulted primarily from the failure of the vessels to reach the quotas in Areas A, B-1 and B-2. (18pp.)
    Keywords: Fisheries ; Biology ; shrimp fisheries ; California
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  • 177
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    A survey of the marine environment near the city of Goleta ocean outfall (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/190 | 8 | 2011-09-29 22:24:10 | 190 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidal ecologicalinvestigation of the marine environment in the vicinity of the city of Goleta ocean outfall. The objective of the study was to provide the Regional Water Quality Control Board (RWQCB) with data to assist them in evaluating theeffects of the discharge on the marine environment at four stations selected by the RWQCB around the outfall terminus (Figure 1). One additional physical data station, (G-4), was occupied for temperature and dissolved oxygen determinations.The determinations made by biologist-divers included: (i) the number and diversity of animal life; (ii) substrate characteristics; and (iii) physical parameters, including water temperature, clarity, and dissolved oxygen. Additionally, benthic samples were obtained both by the divers and by a Ponar grab at each station.The State Water Resources Control Board partially reimbursed the Department for expenses incurred during this study. The work was performed by California Department of Fish and Game biologists from the Department's research vessel KELP BASS. (15pp.)
    Keywords: Ecology ; Fisheries ; Biology ; Goleta ; California ; discharge ; outfalls
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  • 178
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    A survey of the marine environment near the city of Carmel ocean outfall (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/192 | 8 | 2011-09-29 22:24:14 | 192 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidal ecological investigation of the marine environment in thevicinity of the city of Carmel ocean outfall in Carmel Bay. The objective of the study was to provide the Regional Water Quality Control Board (RWQCB) with data to assist them in evaluating the effects of the discharge on the marine environment at five stations selected by the RWQCB adjacent to the outfall terminus and two at a control area off Granite Point (Figure 1), and to provide pre-discharge data for a new discharge being constructed adjacent to the existing one.The determinations made by biologist-divers included: (i) the number and diversity of plant and animal life; (ii) substrate characteristics; and (iii) physical parameters, including water temperature and clarity.The State Water Resources Control Board reimbursed the Department for some expenses incurred during this study. The work was performed by California Department of Fish and Game biologists from the Department's research vessel KELP BASS.
    Description: 18pp.
    Keywords: Ecology ; Fisheries ; Biology ; Carmel Bay ; discharge ; California ; outfalls
    Repository Name: AquaDocs
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  • 179
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    A survey of the marine environment near the city of Santa Cruz ocean outfall (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/189 | 8 | 2011-09-29 22:24:08 | 189 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidal ecological investigation of the marine environment in thevicinity of the City of Santa Cruz ocean outfall. The objective of the study was to provide the Regional Water Quality Control Board with data to assist them in evaluating the effects of the discharge on the marine environment.The determinations made by biologist-divers included: (i) the number and diversity of the plant and animal life; (ii) substrate characteristics; and (iii) physical parameters, including water temperature and clarity. Additionally, benthic samples were obtained both by the diversand by a Ponar grab at each station.The State Water Resources Control Board reimbursed the Department for part of the expenses incurred during this study.
    Description: 17pp.
    Keywords: Ecology ; Fisheries ; Biology ; Santa Cruz ; California ; outfalls
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  • 180
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    Ocean shrimp report: 1971 Season; Fifteenth Annual Shrimp Report (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/194 | 8 | 2011-09-29 22:24:31 | 194 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: California's 1971 ocean shrimp landings totaled 3,074,540 pounds, a decrease of nearly a million pounds from 1970. The decrease resulted primarily from the failure of Area A vessels to reach the quota, and the lack of significant landings in the remaining permit areas.
    Description: 9pp.
    Keywords: Fisheries ; Biology ; shrimp fisheries ; California
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  • 181
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    Mendocino Power Plant site ecological study, Quarterly Report No. 2; October 1 - December 31, 1971 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/195 | 8 | 2011-09-29 22:24:34 | 195 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: This report is the second quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecological study to establish a base line inventory of the marine biotawith special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover work through December 31, 1972. Full tables and species lists will be included in each annual report. Complete records of observations and measurements are kept in files at the Marine Resources Laboratory, Monterey.
    Description: 12pp.
    Keywords: Ecology ; Fisheries ; Biology ; Mendocino Power Plant ; California ; environmental impact
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  • 182
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    A survey of the marine environment near the Wedron Silica discharge off Asilomar, Monterey County (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/193 | 8 | 2011-09-29 22:24:28 | 193 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidal ecological investigation of the marine environment in the vicinity of the Wedron Silica discharge. The objective of the study was to provide the Regional water Quality Control Board (RWQCB) with data to assist them in evaluating the effects of the discharge on the marine environment.The determinations made by biologist-divers consisted of:(i) comparative abundance and diversity of plant and animal life; (ii) substrate characteristics; and (iii) limited physical measurements, including water temperature and clarity.The State Water Resources Control Board reimbursed the Department for part of the expenses incurred during this study. (24pp.)
    Keywords: Ecology ; Fisheries ; Biology ; Asilomar ; California ; discharge ; outfalls
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  • 183
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    Mendocino power plant site ecological study Quarterly Report No. 4; April 1 - June 30, 1972 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/196 | 8 | 2011-09-29 22:24:37 | 196 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: This report is the fourth quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecological study to establish a base line inventory of the marine biotawith special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover works through December 31, 1972. Full tables and species lists will be included in each annual report. Complete records of observations and measurements are kept in files at the Marine Resources Laboratory, Monterey.
    Description: 14pp.
    Keywords: Ecology ; Fisheries ; Biology ; Mendocino Power Plant ; California ; environmental impact
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  • 184
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    California commercial lobster fishery 1973-1974 season (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/219 | 8 | 2011-09-29 22:27:05 | 219 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: (17pp.)
    Keywords: Management ; Fisheries ; Lobster ; commercial fisheries
    Repository Name: AquaDocs
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  • 185
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    Status of Pacific Mackerel spawning population, 1974 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/217 | 8 | 2011-09-29 22:26:39 | 217 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: This is the second annual report on the status of the spawning population of the Pacific mackerel as required by Section 8388.3 of the Fish and Game Code.During 1973 and early 1974, several methods of determining population size were used to estimate the spawning population size of Pacific mackerel stocks north of Point Eugenia, Baja California. The estimated Pacific mackerel spawning population obtained by tagging procedures was 2,025 tons. Two alternate spawning biomass estimates also were obtained using partyboat catches fitted to regressionlines. The estimates derived by these alternate methodsare 4,675 tons, and 8,380 tons.All 1974 estimates are below the 10,000 ton spawning population minimum set in Section 8388.3 of the Fish and Game Code and thus no harvest under Section 8388.5 of the Fish and Game Code could be allowed. (10pp.)
    Keywords: Management ; Fisheries ; Biology ; Scomber japonicus ; Pacific mackerel
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  • 186
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    Diablo Canyon Power Plant site ecological study Quarterly Report No. 5; July 1 - September 30, 1974 (2021)
    California Department of Fish and Game, Marine Resources Region | Sacramento, CA
    In:  http://aquaticcommons.org/id/eprint/220 | 8 | 2011-09-29 22:27:07 | 220 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: During the period July 1 - September 30, 1974, surveys for the Upwelling Period of the random intertidal and subtidal and permanent subtidal stations continued. A total of 11 random subtidal, 9 permanent subtidal and 8 random intertidal stations were sampled in the two study areas. In addition, 9 permanent subtidal stations were remarked with eye bolts, wire rope and new rope and surface buoys.Several inspection dives were made in the Intake Cove Area behind the breakwaters to follow dredging progress. A limited biotic recovery on the periphery of the cove to a depth of 6 m (20 ft) appears to be occurring. (13pp.)Pump operation was also followed closely during testing procedures and at least three problem areas associated with the discharge of cooling waters were found to exist.Interviews of both sea urchin and abalone fishermen working the coastal waters near the plant site were conducted. Activity of urchin fishermen has been fluctuating due to varying gonadal conditions of the urchins.Numbers of sea otters in the Point Buchon to Diablo Cove area have continued to diminish from the numbers observed in spring 1974. However, evidence of foraging, in the form of broken urchin tests, is very strong in Diablo Cove.A new study to establish catch-per-unit-of-effort data of sportfishes by angling was begun this quarter.
    Keywords: Ecology ; Fisheries ; Biology ; Diablo Canyon Power Plant ; California ; environmental impact
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  • 187
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    Ocean Shrimp Report 1973 Season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/216 | 8 | 2011-09-29 22:26:38 | 216 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: Statewide Pacific ocean shrimp landings for 1973 are totaledand compared with the 1972 season. Landings by area aredescribed in relation to poundage by month, catch per uniteffort and fishing area. Sampling results reveal year classcomposition by numbers and weight of the catches by area.Sex composition for all areas and also size of the shrimp bymonth for Area A are computed. Results of hake stomachanalysis reveal the possibility of a strong 1973 year classin Area A. The outlook for the 1974 season points out theneed for strong recruitment from the 1973 year class to sustain the fishery in all areas. (12pp.)
    Keywords: Management ; Fisheries ; Biology
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  • 188
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    Mendocino Power Plant site ecological study annual report; July 1, 1971 to December 31, 1972 (2021)
    California Department of Fish and Game, Marine Resources Region
    In:  http://aquaticcommons.org/id/eprint/221 | 8 | 2021-02-27 19:40:52 | 221 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: This report is the first annual report submitted in partialfulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a preoperational ecological study to establish a base line inventory of the marine biota with special reference to fish and to abalone,including food chains.This first annual report covers all work from September 1971 through December 1972.This annual report covers the first 18 month period of the project from July 1, 1971 through December 31, 1972. The report includes results (discussion and tables) of our subtidal, intertidal, sportfishery, fish collection, fish food habit, and plankton studies. The quarterly reportfor October 1 to December 31, 1972 is included herein and these data are incorporated in this annual report.
    Keywords: Ecology ; Fisheries ; Biology
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  • 189
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    Diablo Canyon Power Plant site ecological study Quarterly Report No. 3; January 1 - March 31, 1974 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/218 | 8 | 2011-09-29 22:26:41 | 218 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: During the period January 1 - March 31, 1974, winter surveys of the permanent subtidal stations were initiated. Three stations were surveyed.We completed our winter random intertidal surveys; a total of 14 stations in Diablo Cove and the North Control Area were visited.The commercial sea urchin fishery resumed and we began interviewing fishermen again.Very little commercial abalone fishing occurred due to theone-month closed season and winter storms.We observed a sea otter in North Cove for the first time and harbor seals were also observcd on the eastern end of the south breakwater for the first time since we began our studies. (17pp.)
    Keywords: Ecology ; Fisheries ; Biology ; Diablo Canyon Power Plant ; California ; environmental impact
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  • 190
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    Diablo Canyon power plant site ecological study; Annual Report, Part 1, July 1, 1975 - June 30, 1976 and Quarterly Rreport No. 12, April 1, 1976 - June 30, 1976 (2021)
    California Department of Fish and Game, Marine Resources Region | Fort Bragg, CA
    In:  http://aquaticcommons.org/id/eprint/447 | 8 | 2011-09-29 22:04:29 | 447 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-29
    Description: Project efficiency was enhanced along with economic savings through reduced per diem costs with the move of two project biologists to the Diablo Canyon area.A total of 765 field and laboratory man-days was spent surveying 189 intertidal, subtidal, and fishing stations, processing algae samples, and compiling data.A new subtidal study of random 1/4m2 quadrats was begun this year to better assess small invertebrates.Three new permanent intertidal stations were established in transition areas outside of Diablo Cove to monitor thermal impact on abalones.Giant red sea urchin densities continued to decline in both subtidal study areas, while densities of large brown algae continued to increase.Numbers of intertidal black and red abalones from parallel to shoreline stations showed little change. Perpendicular to shore stations yielded higher mean densities of black abalones than the parallel stations.Sea otter movements and fluctuations in monthly counts generally paralleled those of previous years.The commercial sea urchin fishery was inactive most of the year, and commercial abalone fishing effort continued to decline. No effort from either fishery was observed in Diablo Cove.Observations on natural and power plant produced foam within Diablo Cove were begun during this report period.
    Description: 149pp.
    Keywords: Ecology ; Fisheries ; Giant red sea urchin ; Diablo Canyon Power Plant ; California ; environmental impact
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  • 191
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    Marine recreational fisheries statistics survey for Northern and Central California, Quarterly Report No. 28, April to June, 1986 (2021)
    California Department of Fish and Game, Marine Resources Region | Fort Bragg, CA
    In:  http://aquaticcommons.org/id/eprint/451 | 8 | 2020-08-24 03:44:01 | 451 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-29
    Description: Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in April to June of 1986, is presented in a data report format. Data in this quarterly report are subdivided into three categories: primarily by five geographical areas;secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presented for these categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (Document has 155 pages.)
    Description: 155pp.
    Keywords: Management ; Fisheries ; marine species ; recreational fishing ; California
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  • 192
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    Southern California marine sport fishing from privately-owned boats; Catch and effort for January-March 1981 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/459 | 8 | 2011-09-29 22:01:33 | 459 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-29
    Description: The catch landed and effort expended by private-boatsport fishermen were studied in southern Californiabetween January and March 1981, in order to determinethe impact of one segment of the sport fishery on localmarine resources. Fishermen returning from fishing tripswere interviewed at launch ramps, hoists, and boat rentalfacilities. This report contains quantitative data andstatistical estimates of total effort, total catch, catchof preferred species, and length frequencies for thosespecies whose catches are regulated by minimum size limits.An estimated 139,000 organisms were landed by 45,000anglers and 1,900 divers. The major components of thecatch were Pacific mackerel, Scomber japonicus, 29,000landed; white croaker, Genyonemus lineatus, 27,000 landed;and Pacific bonito, Sarda chiliensis, 13,000 landed. These three species comprised one-half of the total catch.Anglers' compliance with size limit regulations was variable. Approximately 87% of all measured bass,Paralabrax spp., were legal size, but only 60% of theCalifornia halibut, Paralichthys californicus, were legalsize. Divers showed much better compliance with the sizelimit regulations: 96% of all red abalone, Haliotisrufescens, were legal size. (Document has 24 pages)
    Description: 24pp.
    Keywords: Management ; Fisheries ; Pacific mackerel ; Scomber japonicus ; white croaker ; Genyonemus lineatus ; Pacific bonito ; Sarda chiliensis ; California halibut ; Paralichthys californicus ; red abalone ; Haliotis rufescens
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  • 193
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    Marine recreational fisheries statistics survey for northern and central California, Quarterly Report no. 21, July to September 1984 (2021)
    California Department of Fish and Game, Marine Resources Region | Fort Bragg, CA
    In:  http://aquaticcommons.org/id/eprint/463 | 8 | 2020-08-24 03:45:28 | 463 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-29
    Description: Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in July to September of 1984, is presented in a data report format. Data in this quarterly report aresubdivided into three categories: primarily by five geographical areas; secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presented forthese categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (Document has 205 pages)
    Keywords: Management ; Fisheries
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  • 194
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    Southern California marine sport fishing from privately-owned boats: Catch and effort for April-June 1981 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/460 | 8 | 2011-09-29 22:01:31 | 460 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-29
    Description: The catch landed and effort expended by private-boatsport fishermen were studied in southern Californiabetween April and June 1981, in order to determine theimpact of one segment of the sport fishery on local marineresources. Fishermen returning from fishing trips wereinterviewed at launch ramps, hoists, and boat-rentalfacilities. This report contains quantitative data andstatistical estimates of total effort, total catch, catchof preferred species, and length frequencies for thosespecies whose catches are regulated by minimum size limits.An estimated 310,000 organisms were landed by 106,000anglers and 4,000 divers (more than twice the catch andeffort estimated for the previous 3-month period). Themajor components of the catch were Pacific mackerel, Scomberjaponicus, 63,000 landed; bass, Paralabrax spp., 61,000landed; white croaker, Genyonemus lineatus, 52,000 landed,and Pacific bonito, Sarda chiliensis, 35,000 landed. Thesespecies contributed 70% of the total catch.Anglers' compliance with size limit regulations was variable. Approximately 89% of all measured bass were legal size. The proportion of legal size California halibut, Paralichthys californicus, rose from 60% last quarter to 79% this quarter. However, the percent of legal size California barracuda, Sphyraena argentea, was very low, 58%. Divers' compliance with minimum size limits dropped slightly: abalone, Haliotis spp., averaged 89% legal. (Document has 31 pages)
    Description: 31pp.
    Keywords: Management ; Fisheries ; Pacific mackerel ; Scomber japonicus ; bass ; Paralabrax spp. ; white croaker ; Genyonemus lineatus ; Pacific bonito ; Sarda chiliensis ; California halibut ; Paralichthys californicus ; California barracuda ; Sphyraena argentea ; abalone ; Haliotis spp.
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  • 195
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    Report for the month of September 1969 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/1346 | 8 | 2014-10-14 17:20:50 | 1346 | California Department of Fish and Game
    Details
    Publication Date: 2021-07-07
    Description: Report includes two unnumbered pages between pp. 4 and 5.
    Keywords: Management ; Fisheries ; Biology
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  • 196
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    Report for the month of June 1970 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/1358 | 8 | 2014-10-14 21:24:45 | 1358 | California Department of Fish and Game
    Details
    Publication Date: 2021-07-07
    Description: Report includes appendix re: Wildlife Protection Branch.
    Keywords: Management ; Fisheries ; Biology
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  • 197
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    Report for the month of June 1971 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/1370 | 8 | 2014-10-14 22:12:25 | 1370 | California Department of Fish and Game
    Details
    Publication Date: 2021-07-07
    Description: Report includes appendix re: Wildlife Protection Branch.
    Keywords: Management ; Fisheries ; Biology
    Repository Name: AquaDocs
    Type: monograph
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  • 198
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    Report for the month of April 1972 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/1408 | 8 | 2014-10-15 18:33:42 | 1408 | California Department of Fish and Game
    Details
    Publication Date: 2021-07-08
    Description: Report includes appendix re: Wildlife Protection Branch.
    Keywords: Management ; Fisheries ; Biology
    Repository Name: AquaDocs
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  • 199
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    Report for the month of February 1972 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/1406 | 8 | 2014-10-15 18:29:57 | 1406 | California Department of Fish and Game
    Details
    Publication Date: 2021-07-08
    Description: Report includes appendix re: Wildlife Protection Branch.
    Keywords: Management ; Fisheries ; Biology
    Repository Name: AquaDocs
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  • 200
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    Report for the month of November 1972 (2021)
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/1415 | 8 | 2014-10-15 18:45:30 | 1415 | California Department of Fish and Game
    Details
    Publication Date: 2021-07-08
    Description: Report includes appendix re: Wildlife Protection Branch.
    Keywords: Management ; Fisheries ; Biology
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 26
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