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Showing 1 to 20 of 35 for “"Gulf of California"”.
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Environmental adaptation, political coercion, and illegal behavior: Small-scale fishing in the Gulf of California.
… dissertation examines the shrimp industry in the Gulf of California from a political ecology perspective. The interaction between fishermen and their marine environment is explored, as well as the historical factors that led to vastly different types of fishermen in the communities of Guaymas and …
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Kinematic constraints on the evolution of the Gulf of California Extension Province, Northeastern Baja California, Mexico
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmosphere and Planetary Sciences, 1988.
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Evolution of oceanic margins : rifting in the Gulf of California and sediment diapirism and mantle hydration during subduction
… three processes that control the evolution of oceanic margins. Chapter 2 presents seismic images of a ~2-km-thick evaporite body in Guaymas Basin, central Gulf of California. In rifts, evaporites form under conditions unique to the latest stages of continental rupture, and the presence, age, …
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Evolution of oceanic margins : rifting in the Gulf of California and sediment diapirism and mantle hydration during subduction
… three processes that control the evolution of oceanic margins. Chapter 2 presents seismic images of a ~2-km-thick evaporite body in Guaymas Basin, central Gulf of California. In rifts, evaporites form under conditions unique to the latest stages of continental rupture, and the presence, age, …
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Chemistry of submarine hydrothermal solutions at 21 Ìnorth, East Pacific Rise and Guaymas Basin, Gulf of California
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1984.
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The Effect Of Spatial Subsidies On The Diet, Density, And Species Richness Of Insular Lizards In The Gulf Of California
I used lizards on islands in the Gulf of California to evaluate the effects of materials moving from onto islands. Materials are transported onto the islands by both tidal action and seabirds. I used the stable isotopes of carbon (¹³C/¹²C) and nitrogen (¹⁵N/¹⁴N) to analyze the diets of Uta …
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The Effects of Temperature on the Physiology of PHATARIA UNIFASCIALIS : and its Implications for the Species' Distribution in the Gulf of California
<p>Populations of the asteroid Phataria unifascialis were sampled subtidally in the Gulf of California at Loreto, well within the species' distribution, and at Bahia de los Angeles (the Bay of LA), at the northern end of its distribution on several occasions between 1989 and 1991 to determine the …
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Population genetics of species on the genera Tursiops and Delphinus within the Gulf of California and along the western coast of Baja California.
This present study investigated the evolution of population genetic structure of two closely related cetacean species, bottlenose (Tursiops truncatus) and common dolphins (Delphinus spp.) within the Gulf of California (GC) and along the West Coast of Baja California. In this study, we found …
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Moisture transport associated with the summertime North American monsoon.
The origins and transport of water vapor into the semi-arid Sonoran Desert region of southwestern North America are examined for the July-August wet season. Vertically-integrated fluxes and flux divergences of water vapor are computed for the 8 summers, 1985-1992, from ECMWF mandatory-level …
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North American monsoon precipitation and its precursors: processes at the seasonal and diurnal scale
… flow was key to the location and intensity of precipitation. In 2004, the subtropical high over the south-central United States was about 300~km west of its location in 2000 at 700~hPa. The shift was also evident in vertically-integrated moisture flux, which then changed the pattern and …
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Digenetic trematodes of marine fishes of Ensenada, Baja California, Mexico
<p>The objective of the present study is then limited to investigate the parasitic fauna of marine fishes from Ensenada, Baja California, and to compile in a single manuscript all data (Host-Parasite list, Parasite-Host list, and distribution of parasites) on digenea previously reported from the …
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Cyclically-Forced Hyperpycnites of the Ancient Colorado River Proximal Prodelta
… record a distal, minimally reworked archive of dominant processes active at the fluvial-marine interface. The Fish Creek-Vallecito Basin (CA, US) preserves an ~3 km-thick, lower Pliocene, progradational deltaic succession formed when the ancestral Colorado River infiltrated the early Gulf of …
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Marine Cercariae from Cerithidea Pliculosa Menke from Dauphin Isalnd, Alabama; Life Cycles of Heterophyid and Opisthorchiid Digenea from Cerithidea Swainson from the Eastern Gulf of Mexico
Horn snails of the genus Cerithidea Swainson (1840) are represented in North America by four species. They are: Cerithidea costata (da Costa, 1778), found in South Florida and in the West Indies; Cerithidea californica (Haldeman, 1840), from Bolinas Bay, California to the Gulf of California; …
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Detrital zircon geochronology of the Upper Miocene Boleo Formation in the Santa Rosalia, Baja California Sur, Mexico
The Santa Rosalía Basin (SRB), Baja California Sur, is a transtentional to rift basin that formed during the opening of the Gulf of California. The Boleo Formation is the oldest and dominant sedimentary fill of the SRB, but its age is poorly constrained. We carried out a U-Pb detrital zircon study …
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The Molecular Systematics of the Side-blotched Lizards (IGUANIA: PHRYNOSOMATIDAE: UTA)
… currently recognized species with the center of diversity occurring on islands in the Gulf of California and Pacific Ocean. The molecular evolution of the side-blotched lizards is analyzed using 1132 base pairs of mitochondrial DNA sequence from the cytochrome b and cytochrome oxidase III …
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Some aspects of mercury accumulation by the purple shore crab Hemigrapsus nudus Dana (Crustacea: decapoda)
… present study has attempted to investigate some of the more basic questions concerning the toxicity and accumulation of mercury in the purple shore crab, Hemigrapsus nudus. This rocky intertidal denizen is found in abundance along the entire Pacific coast of the United States from Sitka, Alaska, …
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Fish feeding-habit studies from Tomales Bay, California
… californica Gill, occurs from Oregon to the Gulf of California and is common in California bays during the spring and summer. MacGinitie (1935) observed that during its feeding activities, the Bat Ray can dig channels up to 1 meter wide, 50 cm deep and 4.5 meters long in benthic substrates. …
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The people and the park : how a small Mexican community created one of the world's most successful marine preserves
… Park is a 27-square mile protected area in the Gulf of California, near the southern end of Mexico's Baja Peninsula. The park surrounds one of the oldest coral reefs on the western coast of North America. Once damaged and depleted by overfishing, the reef has seen an incredible recovery since …
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Glacial-Interglacial Variability of Eastern Pacific Hydroclimate
… (SWNA, defined as the region from southern California to southern Mexico, west of the continental divide) has raised alarms regarding water resource scarcity in a region with dense urban populations and vital agricultural industries. Modern hydroclimate in SWNA is complex as rainfall …
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