Matches in SemOpenAlex for { <https://semopenalex.org/work/W935836974> ?p ?o ?g. }
Showing items 1 to 66 of
66
with 100 items per page.
- W935836974 abstract "Lake Shastina provides water for irrigation in Shasta Valley, as well as recreation. Presently, its shoreline is being developed for summer homes. Surface water constituted more than 90 percent of the approximately 50,000 acre-foot (62-cubic hectometre) inflow to Lake Shastina in the 1972 water year. Controlled outflow is via the Montague Main Canal; however, leakage from the lake through volcanic rocks to the northwest was estimated to be greater than the measured outflow. Appreciable annual changes in the quantity of water in storage in the lake are related mainly to variations in annual inflow.From June through August the lake was thermally stratified. In the spring and summer the epilimnion was often supersaturated with oxygen, while at the same time the hypolimnion was undersaturated and 'often devoid of dissolved oxygen. Vertical stratification of carbon dioxide, carbonate, bicarbonate, hydrogen ion, nitrogen, and phosphorus was also recorded during the spring and summer. Orthophosphate, total phosphorus, and total nitrogen concentrations (organic, ammonium, and nitrate) were highest in the hypolimnion during the period of thermal stratification.Ten-inch (25-centimetre) core samples from the reservoir bottom were chemically analyzed at 0.8-inch (2-centimetre) intervals. The concentrations ranged from 6.3 to 28.9 milligrams per gram of iron, 0.07 to 0.43 milligrams per gram of manganese, 0.4 to 2.7 milligrams per gram of organic nitrogen plus ammonium, and 0.06 to 1.3 milligrams per gram of total phosphorus. Organic matter in the cores ranged from 4 to 14 percent.Green algae and diatoms were the dominant algal types, reaching maximum concentrations of about 7 and 30 million cells per litre, respectively. These phytoplankton occurred near the surface during thermally stratified periods, but were distributed at greater depths during nonthermally stratified periods. Blue-green algae were present only in the spring samples, and reached a maximum concentration of about 5 million cells per litre.Zooplankton numbers were greatest in March, July, and September, with lesser concentrations in June. Three major zooplankton groups, Cladocera, Copepoda, and Rotifera, were present. The major groups of benthic organisms were Oligochaeta, Chironomidae, and Chaoborus, with numbers ranging from 3350, 890, and 8450 per square metre, respectively.A discussion on algal control is included." @default.
- W935836974 created "2016-06-24" @default.
- W935836974 creator A5034741919 @default.
- W935836974 creator A5053105986 @default.
- W935836974 creator A5053932515 @default.
- W935836974 date "1974-01-01" @default.
- W935836974 modified "2023-09-26" @default.
- W935836974 title "Limnological study of Lake Shastina, Siskiyou County, California" @default.
- W935836974 doi "https://doi.org/10.3133/wri7419" @default.
- W935836974 hasPublicationYear "1974" @default.
- W935836974 type Work @default.
- W935836974 sameAs 935836974 @default.
- W935836974 citedByCount "1" @default.
- W935836974 countsByYear W9358369742017 @default.
- W935836974 crossrefType "report" @default.
- W935836974 hasAuthorship W935836974A5034741919 @default.
- W935836974 hasAuthorship W935836974A5053105986 @default.
- W935836974 hasAuthorship W935836974A5053932515 @default.
- W935836974 hasBestOaLocation W9358369741 @default.
- W935836974 hasConcept C105859001 @default.
- W935836974 hasConcept C107872376 @default.
- W935836974 hasConcept C108970007 @default.
- W935836974 hasConcept C111368507 @default.
- W935836974 hasConcept C115726729 @default.
- W935836974 hasConcept C127313418 @default.
- W935836974 hasConcept C142796444 @default.
- W935836974 hasConcept C178790620 @default.
- W935836974 hasConcept C185592680 @default.
- W935836974 hasConcept C186699998 @default.
- W935836974 hasConcept C187320778 @default.
- W935836974 hasConcept C207104238 @default.
- W935836974 hasConcept C2776384668 @default.
- W935836974 hasConcept C39432304 @default.
- W935836974 hasConcept C76886044 @default.
- W935836974 hasConceptScore W935836974C105859001 @default.
- W935836974 hasConceptScore W935836974C107872376 @default.
- W935836974 hasConceptScore W935836974C108970007 @default.
- W935836974 hasConceptScore W935836974C111368507 @default.
- W935836974 hasConceptScore W935836974C115726729 @default.
- W935836974 hasConceptScore W935836974C127313418 @default.
- W935836974 hasConceptScore W935836974C142796444 @default.
- W935836974 hasConceptScore W935836974C178790620 @default.
- W935836974 hasConceptScore W935836974C185592680 @default.
- W935836974 hasConceptScore W935836974C186699998 @default.
- W935836974 hasConceptScore W935836974C187320778 @default.
- W935836974 hasConceptScore W935836974C207104238 @default.
- W935836974 hasConceptScore W935836974C2776384668 @default.
- W935836974 hasConceptScore W935836974C39432304 @default.
- W935836974 hasConceptScore W935836974C76886044 @default.
- W935836974 hasLocation W9358369741 @default.
- W935836974 hasOpenAccess W935836974 @default.
- W935836974 hasPrimaryLocation W9358369741 @default.
- W935836974 hasRelatedWork W1987650756 @default.
- W935836974 hasRelatedWork W1998871690 @default.
- W935836974 hasRelatedWork W2012397125 @default.
- W935836974 hasRelatedWork W2077217619 @default.
- W935836974 hasRelatedWork W2085364343 @default.
- W935836974 hasRelatedWork W2143183799 @default.
- W935836974 hasRelatedWork W2771573198 @default.
- W935836974 hasRelatedWork W2943466002 @default.
- W935836974 hasRelatedWork W4220755154 @default.
- W935836974 hasRelatedWork W4239888960 @default.
- W935836974 isParatext "false" @default.
- W935836974 isRetracted "false" @default.
- W935836974 magId "935836974" @default.
- W935836974 workType "report" @default.