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Showing 1 to 20 of 21 for “"Tomales Bay"”.
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Gammaridean amphipods from Tomales Bay, California
… infaunal gammaridean amphipods of Tomales Bay and to relate their distribution to known variations in the physical environment. Also, the Tomales Bay amphipod fauna is compared to the faunas of other West Coast bays.
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Plankton studies of the Tomales Bay, California
<p>These studies on the plankton of Tomales Bay were designed to determine the effects of such physical factors as tides, temperatures, salinities and sunshine on the quantities of various types of organisms, and to obtain a more comprehensive picture of estuarine life at the Pacific Marine …
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Fish feeding-habit studies from Tomales Bay, California
… 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. In intertidal sand flats in Tomales Bay, …
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Seasonal gonadal changes of adult oviparous oysters in Tomales Bay
… 1793), the Japanese oyster, were introduced into Tomales Bay, California, for commercial purposes. Because these oysters do not propagate in Tomales Bay, new shipments of adult oysters or oyster spat must be periodically sent from the east coast of the United States or from Japan. It is the …
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Seasonal gonadal changes in two bivalve mollusks in Tomales Bay, California
… the Pacific coast of North America and common in Tomales Bay, California. A small population of the European oyster, Ostrea edulis Linnaeus (1758), is being raised experimentally at the Tomales Bay Oyster Company. The histological study of the seasonal gonadal changes of these two species, in …
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Water circulation within Tomales Bay, California, U.S.A. : a Mediterranean climate estuary
Tomales Bay, California, situated along the west coast of the United States of America, in the mid-latitudes at 38° 13' 50" N, 122° 58' 30" W, was chosen as the study site for the "Biogeochemical Reactions In Estuaries" (BRIE) project of the "land Margins Ecosystems Research" (LMER) program of the …
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The structure of macrofaunal assemblages inhabiting an intertidal sandflat in Tomales Bay, California
Confronted with a diverse sandflat community of interacting organisms and a spectrum of physical forces, a meaningful community analysis should begin with a description of physical characteristics and faunal distributions over time. The functional importance of certain species in the community …
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The ecology and reproductive cycle of Pygospio elegans claparède (Polychaeta: spionidae) from Tomales Bay, California
… Ocean, from the Sea of Okhotsk and Prudhoe Bay, Alaska.</p><p>As a successful cosmopolitan species, P. elegans has demonstrated its ability to accomplish two objectives: (1) it has colonized new habitats and (2) it has been to withstand perturbations of its local habitat and become, in some …
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Management Recommendations for Restoration of the Degraded Olympia Oyster, Ostrea lurida Carpenter 1864 in Tomales Bay, CA
… restoration of Olympia oyster populations in Tomales Bay, Marin County, California. Chapter 2 provides background information on the Tomales Bay estuary, regional history, and ecology of the Olympia oyster. Following this background discussion, each of the three aforementioned degraders of …
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Studies in digenetic trematodes of marine fishes from Monterey and Tomales Bays, California
… collected by the author from fishes of Tomales Bay (including Dillon Beach) during the summers of 1967 and 1968. Also included in this study are several trematodes collected by the late Alden E. Noble (hereinafter referred to as the “Noble Collection”) at Hopkins Marine Station, Monterey …
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The relationship of sexual dimorphism and differential predation to sex ratio in Leptochelia dubia (Crustacea: Tanaidacea)
… of the most abundant of the small Crustacea in Tomales Bay, where it may attain densities of 30,000/m<sup>2</sup> in soft bottom communities.
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Interactions between Portunion Conformis (Epicaridea: Entoniscidae) and two host species
… conformis and H. oregonensis occurring in Bodega Bay, California. In the present study, interactions between this isopod and populations of both hosts in Tomales Bay, California, are described, including the influence of host species, sex and size on parasitic infestation and the effects of the …
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The functional morphology and ecology of Chone mollis
<p>Chone mollis occurs in large numbers in Tomales Bay and is an ecologically important infaunal member of the bay community. As with most marine communities, very little work has been done with individual species of the community. The present study of C. mollis is a contribution towards an …
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The larval development of Pinnixa Longpipes (Lockington, 1877) (Brachyura: Pinnotheridae), reared in the laboratory
… U-shaped tubes in san-mud substrata of bays and estuaries along the Pacific coast. The pronounced lateral elongation and diminutive size of p. Longpies enable it to move easily in the narrow tube with the worm. The species has occasionally been found with other polychaetes, including …
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Probolitrema tomalis sp. nov. (Trematoda) from Dasyatis dipterura and Brachylaemus virginianus (Dickerson) (Trematoda) from Didelphys virginiana
… Dasyatis dipterura, on July 2, 1933, from Tomales Bay, California. No observations concerning the living animal were recorded.</p>
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Studies on gametogenesis in the Echiuroid worm, Urechis caupo
… representative of the fauna of the mud flats of Tomales Bay. The unusual manner in which this animal lives would stimulate the curiosity of any student interested in biology, and especially those associated with marine life. The fact that the animal burrows its own home in a U-shaped tunnel and …
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Distribution and abundance of soft-sediment intertidal Polychaetes
Polychaetes are important components of the intertidal sandflat community in Lawson’s Flat, Dillon Beach, California. Little is known about the factors that control the relative abundance of these species. In view of the extensive evidence of the importance of interactions between component species …
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The structure of experimental clastic-substrate marine communities
<p>It is hypothesized that difference between containers and between sediments will produce structural differences in the resulting communities by intensifying competition for resources, and by excluding certain classes of predators. It is also hypothesized that the level of the effect of …
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Reproductive ecology and population dynamics of two sympatric species of Macoma (Bivalvia)
Populations of the sympatric intertidal bivalves, Macoma secta and M. nasuta are compared as to reproductive ecology and population dynamics. Histological examination of seasonal gonadal changes indicate that both species undergo dormancy in the winter months and rapid gamete proliferation in the …
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Life cycle studies on Stephanostomum pacificum, a new species of trematode, from the Pacific Marine Station area
<p>This report summarizes the results of a study on the life cycle of a member of the trematode family Acanthooolpidae, genus Stephanostomum Looss, 1899, which was carried on during the summers of 1948, 1949, 1951, and the winter of 1948-49 at the Marine Station of the College or the Pacific at …
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