Diablo Canyon power plant site ecological study Quarterly Report No. 21: July 1 - September 30, 1978

Rough seas and the hiring freeze further delayed completion of our field and laboratory work. All random 1/4-m2 stations were completed in Diablo Cove but ten stations remain in the North Control. Nine random fish species counts were conducted in Diablo Cove. Very few sea otters, Enhydra lutris, were observed during this quarter, none in Diablo Cove. (10pp.

On the origin of the canyon diablo no. 2 and no. 3 meteorites

Measurements of helium-3, neon-21, and argon-38 in Canyon Diablo meteorites indicated origin of Canyon Diablo-

Diablo canyon power plant site ecological study Quarterly Report No. 1; July 1 - September 30, 1973

The second phase of ecological studies at the Diablo Canyon Power Plant site was initiated in July 1973. The first, phase conducted during 1970-71 involved baseline ecological surveys with special reference to abalone and bony fishes. The objectives of this second phase are to quantitativey monitor abalone and algal communities, including predators and competitors, along permanent intertidal and subtidal transects established during the first phase. During the quarter nine permanent transects were located and marked with new buoys. Surveys on seven of these transects were completed, and the commercial sea urchin and red abalone fisheries operating in the Diablo Cove area were monitored. Sea otter activities between Diablo Cove and Pt. Buchon were recorded to determine the location of the herd and their general food habits. Little evidence of feeding activity has been observed in Diablo Cove. Temperature tolerance studies, began in March 1973 on red abalones, were continued. Problems in obtaining viable abalone larvae hampered this project.(11pp.

Diablo Canyon power plant site ecological study Quarterly Report No. 13; July 1 - September 30, 1976

Surveys of 39 random 30-m2 subtidal stations and 56 random 1/4-m2 subtidal stations in Diablo Cove and the North Control were completed. The mean density of red abalones, Haliotis rufescens, in Diablo 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 cooling water pumps were not in operation. The amounts of foam appeared 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 upwelling period were completed. (11pp.

Diablo Canyon power plant site ecological study; Quarterly Report No. 11; January 1 - March 31, 1976

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.

English Language Minority Students and Education Policy: A Focus on the Latinx Population

Our federal government allows states to pass and ratify new laws every year. Over the last thirty years, America has experienced a polarized fight over the expansion or reduction of government involvement. In terms of education policy, local districts and governments can play an essential role in the implementation, evaluation, and development of equitable educational opportunities. This paper examines federal and state level policies in the context of English Language Learners’ (EL) educational opportunities. In particular, I focus on Mt. Diablo High School, which is located in the Mount Diablo District. According to the California State Department of Education, the percentage of English Language Learners at this school is 33.5%. Out of this percentage, a majority of English Language Learner students at Mt. Diablo High School are Latinx (84.98%). These statistics help to demonstrate that state and district level policies lack inclusivity, student awareness on academic resources, accessibility to career center programs, and a lack of parent and teacher participation. Due to these shortcomings, these policies primarily feed into the undereducation and retention of EL students. By analyzing existing Student Site Council meetings and state-level data sets, I argue that there is a higher need for accountability and support relative to the number of EL students attending Mt. Diablo High School

A quantitative ecological study of selected nearshore marine plants and animals at the Diablo Canyon power plant site: a pre-operational baseline, 1973-1978

Biologists of the California Department of Fish and Game, under contract with the Pacific Gas and Electric Company, conducted surveys or intertidal and subtidal plants and animals 1n the vicinity of the Diablo Canyon Nuclear Power Plant for the summer of 1973 through 1978. Abundances of the dominant plants and animals were obtained at random as well as permanent stations in Diablo Cove as well as nearby control areas. A total of 643 permanent and random stations were surveyed, 262 in the intertidal and 381 in the subtidal. Natural as well as man-caused occurrences have resulted in several significant changes in plant and animal abundance in the study areas; these include the arrival of the southern front or the sea otter population in Diablo Cove in 1974; a strong red tide bloom in the fall of 1974; and the release of copper ions from the power plant condenser tubes into Diablo Cove during the summer of 1974. Our intertidal and subtidal random station data have shown a strong decline in giant red sea urchin, Strongylocentrotus franciscanus, densities and the surface canopy kelp, Nereocystis/leutkeana, and a corresponding increase in the subcanopy kelps, Pterygophora and Laminaria. Seasonal patterns of abundance of foliose red algae at random intertidal stations occurred at all study areas. Several species intertidal and subtidal invertebrates showed increasing or decreasing trends in levels of abundance during the five year study period covered by the report. Some of these changes in abundance may be related to the natural man-caused impacts mentioned above. (Document has 728 pages

Diablo Canyon power plant site ecological study Quarterly Report no. 7; January 1 - March 31, 1975

During the period January 1 - March 31, 1975 we relocated and remarked five permanent subtidal stations and surveyed 28 random and two permanent intertidal stations. We failed to find a single giant red sea urchin, Strongylocentrotus franciscanus, around station 16 during a dive in March. Abalone, Haliotis spp., numbers decreased at random intertidal stations in North Diablo Cove and the North Control Area. The commerical sea urchin fishery was inactive, while the commerical red abalone, H. rufescens, fishery continued to operate around Pecho Rock. Counts of sea otters south of Point Buchon increased significantly, 20 to 30 otters are now feeding just north of Pecho Rock. Eight random fishery stations in Diablo Cove, Lion Rock Cove and the North Control Area yielded a substantial increase in catch-per-unit-of-effort. (15pp.

Diablo Canyon power plant site ecological study Quarterly Report no. 17: July 1 - September 30, 1977

During the quarter a total of 38 random 30-m2 and 152 random 1/4-m2 subtidal stations were surveyed. Red abalone, Haliotis rufescens, densities remained very low. There was a continued decline in densities of giant red sea urchins, Strongylocentrotus franciscanus, in Diablo Cove as well as the North Control area. The annual shore census of bull kelp, Nereocystis luetkeana, revealed the lowest number of plants in the surface canopy in Diablo Cove since 1973. The subtidal station data supported this observation. Sea otter, Enhydra lutris, observations were continued. A small group of otters continued to raft in the Cove east of Lion Rock. Some of these otters probably forage as far south as South Cove. The survey of 11 random intertidal stations completed our Upwelling sampling effort. (16pp.

X-ray diffraction analysis of cohenite from iron meteorites

X-ray diffraction investigation of cohenite from Canyon Diablo meteorites and Odessa shock standards to determine shock-induced alterations in crystal characte