scholarly journals Excavaciones arqueológicas en el poblado de Bahía de los Ángeles

1993 ◽  
pp. 175-216
Author(s):  
Julia Bendímez Patterson ◽  
Miguel Agustín Téllez ◽  
Jorge Serrano
Keyword(s):  
Los Angeles ◽  
Baja California ◽  
Chione Undatella

La información que se presenta en este artículo es resultado de UD proyecto arqueológico desarrollado en 1987 ubicado en la vecindad de un manantial en el actual poblado de Bahía de los Ángeles, Baja California. El trabajo está orientado, básicamente, al análisis del comportamiento de los restos de fauna marina que constituyen los desechas que dejaron poblaciones a través de por lo menos 7.000 años. Se observa que los moluscos predominantemente Chione Californiensis y Chione Undatella reflejan los hábitos alimenticios, condiciones ambientales, accesibilidad de colecta e impacto a través del tiempo sobre la explotación. Todo lo anterior queda enmarcado en un contexto de antecedentes de estudios antropológicos en la región.

scholarly journals The Columbellid species of the northeast Pacific coast from the Aleutian Islands to Cedros Island, Baja California (Neogastropoda: Columbellidae)

Zoosymposia ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 160-183
Author(s):  
MARTA J. DEMAINTENON
Keyword(s):  
Los Angeles ◽  
Natural History ◽  
Baja California ◽  
Aleutian Islands ◽  
Santa Barbara ◽  
History Museum ◽  
Marine Snails ◽  
Northeastern Pacific ◽  
The Tropics ◽  
Cedros Island

The neogastropod family Columbellidae is a diverse cosmopolitan group of small marine snails, with its greatest diversity in the tropics. They are represented in high latitudes, but the columbellid fauna of higher latitudes tends to be much less well documented. The present paper documents the nearshore columbellid fauna of the northeastern Pacific Ocean, from the Aleutian Islands to Cedros Island, near the dividing point between Baja California and Baja California Sur. It is based on work by J.H. McLean, and completed posthumously. Examination of the regional columbellid collections in the Natural History Museum of Los Angeles County and the Santa Barbara Museum of Natural History has resulted in 24 species in eight genera, of which four new species and one new genus are described herein. The present paper focuses on dry shell material.

Review of the bivalve genus Plicatula from Cretaceous and lower Cenozoic strata of California and Baja California

1997 ◽  
Vol 71 (2) ◽  
pp. 287-298 ◽  
Author(s):  
Richard L. Squires ◽  
Louella R. Saul
Keyword(s):  
New Species ◽  
Los Angeles ◽  
Lower Cretaceous ◽  
Southern California ◽  
Upper Cretaceous ◽  
Baja California ◽  
Middle Eocene ◽  
Baja California Sur ◽  
Northern California ◽  
Three New Species

The Cretaceous and early Cenozoic species of the shallow-marine, warm-water bivalve Plicatula from California (United States) and Baja California (Mexico) are reviewed, and three new species are named. All of these species are representatives of Plicatula and not of the closely related taxon Harpax, which is associated with high-latitude and cool-water regions. The earliestknown Cretaceous species of Plicatula from the study area is P. variata Gabb, 1864, from Lower Cretaceous (Hauterivian Stage) strata in northern California, and our studies show it to be conspecific with Plicatula onoensis Anderson, 1958.Plicatula allisoni new species is from Lower Cretaceous (Albian Stage) strata in Baja California, Mexico. Plicatula modjeskaensis new species is from Upper Cretaceous (Turonian Stage) strata in the Santa Ana Mountains, southern California. A possible new species from the same strata is also mentioned. A poorly preserved specimen of Plicatula? sp. is known from Upper Cretaceous (upper Campanian to lower Maastrichtian) strata in northern California.The only Paleocene species of Plicatula from the study area is P. ostreiformis Stanton, 1896, from lower Paleocene strata of Lake County, northern California, and our studies show it to be conspecific with Ostrea buwaldana Dickerson, 1914. The only previously described Eocene species of Plicatula from the study area is P. juncalensis Squires, 1987, from lower middle Eocene (“Capay Stage”) strata of Los Angeles County, southern California. Plicatula surensis new species is from middle lower Eocene (“Capay Stage”) strata in Baja California Sur, Mexico. In addition, there is a Plicatula? sp. from Eocene strata of Baja California Sur, Mexico.Although Plicatula is of uncommon occurrence north of Baja California, its thermophilic trait makes it useful in recognizing periods of warm climate.

scholarly journals Comparative analysis of the reproductive strategy of lion’s paw scallop Nodipecten subnodosus in Baja California Sur, Mexico

2017 ◽  
Vol 43 (3) ◽  
pp. 616-620
Author(s):  
Marco A. Angel-Dapa ◽  
Marcial Arellano-Martínez ◽  
Bertha P. Ceballos-Vázquez ◽  
Hector Acosta-Salmón ◽  
Pedro E. Saucedo
Keyword(s):  
Comparative Analysis ◽  
Los Angeles ◽  
Reproductive Strategy ◽  
Baja California ◽  
Baja California Sur ◽  
Active Centers ◽  
Conservative Strategy ◽  
High Frequencies ◽  
Continuous Reproduction ◽  
Stored Reserves

The reproductive strategy of lion’s paw scallop Nodipecten subnodosus was evaluated in a culturing system in Bahía Tortugas, Baja California Sur, Mexico during an annual cycle, comparing its response with data previously reported at other localities. High frequencies of ripe gonads throughout the year indicate that reproduction was continuous, with two main ripening/spawning events: July-September and December-March. A continuous breeding is also reported for the species in Bahía Magdalena, Bahía Juncalito, and Bahía de Los Angeles. These eutrophic areas are Biological Active Centers where gametogenesis appears to be regulated by the energy taken from recently ingested food following an opportunistic strategy. However, the digestive gland index decreased and the muscle indices increased during one of the breeding peaks, suggesting that some stored reserves are also used to sustain gametogenesis (conservative strategy) partially. High incidences of atretic oocytes are likely associated with atypical daily variations in water temperature from May through September (12 to 33°C), or with stressful conditions in the culturing system in summer. Despite this, the culturing system set in Bahía Tortugas appears beneficial for a continuous reproduction of N. subnodosus.

Checklist of conspicuous reef fishes of the Bahía de los Ángeles region, Baja California Norte, Mexico, with comments on abundance and ecological biogeography

Zootaxa ◽  
2011 ◽  
Vol 2922 (1) ◽  
Author(s):  
ISMAEL MASCAREÑAS-OSORIO ◽  
BRAD ERISMAN ◽  
JERRY MOXLEY ◽  
EDUARDO BALART ◽  
OCTAVIO ABURTO-OROPEZA
Keyword(s):  
Los Angeles ◽  
Species Composition ◽  
Relative Abundance ◽  
Gulf Of California ◽  
Baja California ◽  
Reef Fishes ◽  
Eastern Pacific ◽  
Frequency Of Occurrence ◽  
Tropical Eastern Pacific ◽  
Geographic Distributions

A first checklist of conspicuous reef fishes observed at 15 sites in the vicinity of Bahía de los Ángeles from 2008 to 2010 is presented. A total of 70 species representing 31 families were observed. Species composition was similar to well studied regions in the southern Gulf of California, in that most species had distributions that span the Tropical Eastern Pacific but species endemic to Mexico or the Gulf of California ranked highest in relative abundance, frequency of occurrence, and mean density. Several species with temperate geographic distributions were more abundant and frequent than on reefs in the southern Gulf. Large-bodied, predatory species such as sharks and the Gulf Grouper, Mycteroperca jordani, were rare or absent.

scholarly journals Transnacionalización de las danzas aztecas y relocalización de las fronteras México / Estados Unidos

2012 ◽  
Vol 1 (21) ◽  
pp. 11-50 ◽  
Author(s):  
Renée De la Torre ◽  
Cristina Gutiérrez Zúñiga
Keyword(s):  
Los Angeles ◽  
Baja California ◽  
Homi Bhabha

El presente artículo trata sobre el papel que juega la rehabilitación, reinvención y rescate de mitos fundacionales, símbolos nacionales y rituales transfronterizos basados en la búsqueda de raíces etno-nacionales en un con- texto transfronterizo.1 En particular compararemos una misma celebración (de reciente invención) en torno al último emperador Azteca que se lleva a cabo simultáneamente en Tijuana (Baja California, México) y en Los Ángeles (California, Estados Unidos). Estas poblaciones forman parte de una región fronteriza, que aunque se encuentran dividida por una muralla, es a la vez un lugar de encuentro con la multiculturalidad y con la alteridad nacional. Es como lo señala Homi Bhabha un lugar “in-Between” (en el entre) de dos regí- menes nacionales, que a su vez reconfiguran la identidad étnica y la ciudadanía.

Sign in / Sign up

Export Citation Format

Share Document