ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    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
    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
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    facet.materialart.
    Unknown
    California Department of Fish and Game Marine Resources Division | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/385 | 8 | 2011-09-29 22:07:35 | 385 | California Department of Fish and Game
    Publication Date: 2021-06-29
    Description: This study focused on the physical and biological processes that influence the distribution, abundance, growth, and survival of young-of-the-year (YOY) rockfishes and lingcod along the central California coast. The annual somatic and reproductive condition of adult female blue rockfish corresponded to annual upwelling. Resulting larval production may correspond to the reproductive potential of adults; however, ultimate recruitment success of YOY is also effected by oceanographic conditions during their planktonic stage. Within a year, each species of settled YOY was observed concurrently and in relatively similar abundances at all study dive sites along the central coast. Most species of YOY exhibited similar growth patterns amongstations and years. We found a high degree of interannual variability in the condition of adults and relativeabundances of YOY. We believe a large part of this variability is due to annual oceanographic conditions,specifically upwelling.Marine reserves, which would protect populations of reproductively mature rockfishes and lingcod and insure 1arval production, have been suggested as an alternative to present management strategies for these species. However, a crucial question is whether or not larvae from adult fish in reserves would significantly contribute to replenishing stocks in other areas. This study was undertaken to assist in determining the feasibility of reserves to enhance nearshore rockfish and lingcod populations. (78pp.)
    Keywords: Management ; Fisheries ; Biology ; Lingcod ; Ophiodon elongatus ; Olive Rockfish ; Sebastes serranoides ; vermilion rockfish ; Sebastes miniatus ; Kelp rockfish ; Sebastes atrovirens ; yellowtail rockfish ; Sebastes flavidus ; black rockfish ; Sebastes melanops ; blue rockfish ; Sebastes mystinus ; California
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    facet.materialart.
    Unknown
    California Department of Fish and Game, Marine Resources Region | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/405 | 8 | 2011-09-29 22:06:05 | 405 | California Department of Fish and Game
    Publication Date: 2021-06-29
    Description: During the Quarter we surveyed seven permanent and 48 random subtidal stations. In addition a new study was undertaken with the surveying of one random subtidal station in Diablo Cove where counts were made of small invertebrates within four 1/4-m quadrats. Red abalone, Haliotis rufescens, numbers continued to decrease at random as well as permanent stations in Diablo Cove. Bull kelp, Nereocystis lustkeana, more than doubled in density in Diablo Cove. Permanent stations showed a decline in giant red sea urchin, Strongylocentrotus franciscanus, numbers while random stations indicated an increase in abundance. (14pp.)The commercial sea urchin fishery was inactive. Commercial abalone fishermen were observed infrequently in the Pecho Rock area.
    Keywords: Ecology ; Fisheries ; Biology ; Red abalone ; Haliotis rufescens ; Bull Kelp ; Nereocystis luetkeana ; giant red sea urchin ; Strongylocentrotus franciscanus
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    facet.materialart.
    Unknown
    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
    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
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    facet.materialart.
    Unknown
    California Department of Fish and Game, Marine Resources Division | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/110 | 8 | 2011-09-29 22:34:39 | 110 | California Department of Fish and Game
    Publication Date: 2021-06-26
    Description: From May 1987 to June 1990 and from August to December 1991Fishery Technicians sampled catches on board 690 CommercialPassenger Fishing Vessel (CPFV) trips targeting rockfish and lingcod from the general port areas of Fort Bragg, Bodega Bay, San Francisco, Monterey, and Morro Bay. Data are presented for species composition by port area, year, and month, for catch-per-unit-effort, mean length, and length frequency of lingcod and the 18 most frequently observed rockfish species, and for trends in fishing effort related to fishing time, depth, and distance from port. Total catch estimates are presented based on unadjusted logbook records, logbook records adjusted by sampling data and compliance rates, and effort data from a marine recreational fishing statistics survey. Average catch of kept fish per angler day was 11.8 and average catch of kept fish per angler hour was 3.7. A trend of an increasing frequency of trips to deep (〉40 fm) locations was observed in the Bodega Bay, San Francisco, and Monterey areas from 1988 to 1990-91. No trend was evident relative to trip frequency and distance from port.A total of 74 species was observed caught during the study.Rockfishes comprised 88.5% to 97.9% by number of the observed catch by port area. The five most frequently observed species were chilipepper, blue, yellowtail, and widow rockfishes, and bocaccio, with lingcod ranking seventh.In general, mean length and catch-per-angler-hour of sportfishes caught by CPFV anglers varied considerably and did not show steady declines during the study period. However, port-specific areas of major concern were identified forchilipepper, lingcod, and black rockfish, and to a lesserextent brown, canary, vermilion, yelloweye, olive, and widow rockfish. These areas of concern included steadily declining catch rate, steadily declining mean length, and a high percentage of sexually immature fish in the sampled-catch.Recent sampling of the commercial hook-and-line fishery innorthern and central California indicated that most species of rockfishes taken by CPFV anglers are also harvested commercially. (261pp.)
    Keywords: Management ; Fisheries ; rockfish ; lingcod ; sport fishing ; California
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    facet.materialart.
    Unknown
    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
    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
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    facet.materialart.
    Unknown
    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
    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
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    facet.materialart.
    Unknown
    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
    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
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    facet.materialart.
    Unknown
    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
    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
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    facet.materialart.
    Unknown
    California Department of Fish and Game, Marine Resources Division | Monterey, CA
    In:  http://aquaticcommons.org/id/eprint/377 | 8 | 2011-09-29 22:09:04 | 377 | California Department of Fish and Game
    Publication Date: 2021-06-29
    Description: In 1976 an experimental research project was initiated to examine the possible effects of the removal of a giant kelp, Macrocystis pyrifera, canopy in a central California kelp bed on Young-of-the-Year (YOY) fish populations. A total of 7823 fishes was captured and marked using freeze branding. Pre-canopy removal population estimates were made using the Schnabel method and post-canopy removal population estimates were made using the Petersen method (Lincoln Index). A significant (p 〈 .0004) reduction of fish occurred immediately after the canopy was removed and the population remained at a reduced level for at least 60 days. This information warranted the creation of a second expanded project.In 1977 we established three study areas consisting of a kelp bed to be harvested (C), a kelp bed not to be harvested (NC) and a control kelp bed. We captured and marked over 82,000 YOY fish in Areas C and NC. Using the same statistical methods from the 1976 study, a significant reduction was found to occur in fish populations within harvested Area C and unharvested area NC: however, the reductions were not significantly different between the two areas. The large reduction in the fish population in theharvested area occurred when fish moved into the unharvestedarea. The large, unexpected reduction in fish numbers in theunharvested area (NC) occurred when larger predatory YOY bocaccio moved into the control area (X) as the experimental area (C) was being harvested. The bocaccio removed in excess of 20% of the biomass of YOY blue rockfish, which was composed of resident fish and recently migrated fish from the harvested kelp bed. Predation on YOY blue rockfish was also evident in the harvested area.Population estimates using visible fish transects by diverscorrelated well with population estimates from thecapture/recapture studies in 1976, but correlation was poorer the following year when many more fish were present. (32pp.)
    Keywords: Fisheries ; Biology ; giant kelp ; Macrocystis pyrifera ; bocaccio rockfish ; Sebastes paucispinis ; Blue rockfish ; Sebastes mystinus
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...