Boyd, Milton J.http://hdl.handle.net/2148/4442024-03-28T21:00:33Z2024-03-28T21:00:33ZIdentification and Distribution of Benthic Communities in the Central Portion of Humboldt Bay, CaliforniaBoyd, Milton J.Roelofs, Terry D.Thompson, Robert W.http://hdl.handle.net/2148/7782014-01-29T10:19:51Z1975-01-01T00:00:00ZIdentification and Distribution of Benthic Communities in the Central Portion of Humboldt Bay, California
Boyd, Milton J.; Roelofs, Terry D.; Thompson, Robert W.
Under U.S. Army Corps of Engineers Contract Number DACW07-75-0035, benthic invertebrate samples, sediment samples, and trawl samples were collected from North Bay, Samoa, and Eureka Channels during SeptemberNovember 1974. In December 1974 and January 1975 additional samples were collected from the Entrance Bay for analysis at the request of the Corps of Engineers. This area was investigated because of consideration as a potential dredging disposal site. The purpose of this investigation is to extend our knowledge of the benthic habitat in Humboldt Bay, California, in order to adequately assess the impact of dredging on benthic organisms ..
1975-01-01T00:00:00ZNon-indigenous marine species of Humboldt Bay, CaliforniaBoyd, Milton J.Mulligan, Tim J.Shaughnessy, Frank J.http://hdl.handle.net/2148/4632013-12-02T21:52:02Z2002-02-28T00:00:00ZNon-indigenous marine species of Humboldt Bay, California
Boyd, Milton J.; Mulligan, Tim J.; Shaughnessy, Frank J.
A number of both intentionally and inadvertently introduced species have been in Humboldt Bay for a long time, in some cases going back to the first settlement of the region by Europeans in the mid 1800's. During this survey, we collected and identified 95 species that are possibly non-indigenous marine species (NIS) in Humboldt Bay. There were representatives from most major groups of organisms, ranging from vascular plants to fish. We compared the occurrence of introduced species in Humboldt Bay to their occurrence mentioned in previous studies done along the Pacific coast of North America. The data on co-occurrence suggest that San Francisco Bay could be an important source area for introductions to Humboldt Bay, a finding consistent with ship and small boat traffic moving between these two locations. The number of species that appear to be found only in Humboldt Bay (27) suggests that there may be factors in the nature of shipping or other human influences that are unique to the bay.
2002-02-28T00:00:00ZEcology of Humboldt Bay, California: an estuarine profileBarnhart, Roger A.Boyd, Milton J.Pequegnat, John E.http://hdl.handle.net/2148/4622013-12-02T21:52:02Z1992-01-01T00:00:00ZEcology of Humboldt Bay, California: an estuarine profile
Barnhart, Roger A.; Boyd, Milton J.; Pequegnat, John E.
This estuarine profile is one of a series of profiles that synthesize current ecological and other pertinent information of selected estuaries of the United States. The data in this profile on Humboldt Bay provide a scientific reference on the bay's natural resources and will aid in the management and protection of the estuary. Humboldt Bay is one of the most valuable coastal resources on the west coast of the United States.
The profile provides current and historical information on the geographic setting of Humboldt Bay; describes geological, climatological, hydrological, and physicochemical aspects of the bay environment; describes the biotic communities and their relationships; compares and contrasts other west coast estuaries to Humboldt Bay; provides management considerations in terms of procedures, socioeconomic factors, and environmental concerns; and identifies research and management information gaps important to proper management and protection of the bay.
The information in this profile also should be useful to educators, students, and interested laypersons. The style and format are designed to make the profile useful to many different interests.
1992-01-01T00:00:00ZIntertidal and subtidal biota of Redwood National ParkBoyd, Milton J.DeMartini, John D.http://hdl.handle.net/2148/4452013-12-02T21:42:42Z1977-01-01T00:00:00ZIntertidal and subtidal biota of Redwood National Park
Boyd, Milton J.; DeMartini, John D.
Intertidal and subtidal habitats of Redwood National Park including Prairie Creek Redwoods and Del Norte Coast Redwoods State Parks were surveyed over a two year period (July 1974 - June 1976). The coastline is approximately 31 miles long and trends generally north-south from latitude 41º15'W to 41º44'W, longitude 124º07'N. Approximately half the coastline is sand beach exposed to waves from a predominantly north-west direction. The fauna of beaches is generally sparse, with major species characterized as generalists. A semi-protected sand beach near the northern border of the Park supports a relatively diverse fauna of 32 species. Rocky intertidal areas are interspersed between pocket beaches and projecting headlands. Substrates in most accessible rocky intertidal locations are small to medium-sized boulders. Wave impact during winter storms and drift-log battering in rocky locations have resulted in the establishment of a biota dominated by annual species. During the survey, 168 species of invertebrate animals, 8 fish species, and 87 species of plants were identified. Subtidal rock bottoms are similar in biotic composition to those of northern California and Oregon, and contain many species of the low intertidal (infra-littoral fringe).
Submitted in fulfillment of U.S. Department of the Interior, National Park Service Contract No. CX8480-4-0665
1977-01-01T00:00:00Z