Bulletin (Southern California Academy of Sciences) articles from August 2003

Bulletin (Southern California Academy of Sciences) archives from August 2003

Abundance and importance of fish species from the artisanal fishery on the Pacific coast of northern Baja California.
August 1, 2003... Abstract.--The artisanal fishery from Baja California, Mexico is conducted from small boats in nearshore waters, and from fishing camps located along the coast. This activity is important due to the volume and the number of fish species...

Reliability assessment of season-of-capture determination from archaeological otoliths.
August 1, 2003... Abstract.--A technique involving microscopic examination of otolith growth zones has been commonly used by archaeologists along the coast of California to estimate season-of-capture of prehistoric fishes and to infer the season of site use. A...

Differential preservation of fossil elements in the Maricopa Brea, California.
August 1, 2003... Abstract.--Maricopa is a southern California tar seep with representative flora and fauna of the Pleistocene and Recent periods. Of the over 4000 fossil elements collected in this study, there were many that represented mammals and birds of the...

Invasive aquatic animals and possible effects on native frogs and toads in Mediterranean Baja California (1).(Research Notes)
August 1, 2003... Northwestern Baja California, Mexico, shares a unique mediterranean biota with adjacent California, USA, as a result of the climatic conditions that dominate the area. Many of the vertebrates in it are restricted to this ecosystem, including...

Distribution and morphotypes of the federally endangered land snail Helminthoglypta (charodotes) walkeriana (Hemphill, 1911).(Research Notes)
August 1, 2003... The Morro shoulderband snail, Helminthoglypta walkeriana (Hemphill 1911), a terrestrial snail found in San Luis Obispo County, California, is listed as endangered under the U.S. Endangered Species Act. Surveys conducted by the California...