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Articles 1 - 30 of 66
Full-Text Articles in Life Sciences
An Economic Impact Analysis Of The Proposed Yakima/Klickitat Fishery Enhancement Project; Preliminary Design Report, Appendix D., Richard S. Mack, Donald J. Cocheba, Daniel Green, David W. Hedrick
An Economic Impact Analysis Of The Proposed Yakima/Klickitat Fishery Enhancement Project; Preliminary Design Report, Appendix D., Richard S. Mack, Donald J. Cocheba, Daniel Green, David W. Hedrick
Economics Faculty Scholarship
The objective of this study is to estimate the economic impact of the proposed Yakima/Klickitat Production Project on the local economies of the Yakima and Klickitat subbasins. The project, when operating at planned maximum production, will augment the total number of salmon and steelhead returning to the subbasins by 77,600 and will increase the sustainable terminal harvest by 55,160. These estimates do not include fish harvested in the ocean or in the mainstem Columbia. In addition to evaluating the impacts of the construction, operations and maintenance, experimentation and monitoring, and harvest activities described in the Draft Environmental Assessment (Bonneville Power …
Guidelines For By-Laws For Those Abrolhos Islands Set Aside For Fisheries Purposes., N. Moore
Guidelines For By-Laws For Those Abrolhos Islands Set Aside For Fisheries Purposes., N. Moore
Fisheries management papers
The main purpose of this discussion paper is to establish the guidelines required for determining by-laws for the islands of the Abrolhos used for fisheries purposes as part of a self-management systems.
Introduction And Enhancement Of Vegetative Cover At Lake Mead, Jennifer S. Haley, Lisa K. Croft, Suzanne E. Leavitt, Larry J. Paulson
Introduction And Enhancement Of Vegetative Cover At Lake Mead, Jennifer S. Haley, Lisa K. Croft, Suzanne E. Leavitt, Larry J. Paulson
Publications (WR)
Studies done by the Nevada Department of Wildlife (NDOW) and the Arizona Fish and Game between 1978 and 1981 indicate that inadequate cover may be limiting the production and survival of largemouth bass at the Lake Mead National Recreation Area (LMNRA). As a result of these studies, NDOW initiated a contract in 1986 with the Lake Mead Research Center (LMRC) to investigate means of improving habitat for game fish by introducing natural and/or artificial cover.
During Phase I (1986-1987) of this contract, the shoreline of Lake Mead was surveyed for aquatic and terrestrial plant growth. Also during this time, submerged …
Oyster Spatfall In Virginia Rivers: 1989 Annual Summary, Bruce J. Barber
Oyster Spatfall In Virginia Rivers: 1989 Annual Summary, Bruce J. Barber
Reports
The Virginia Institute of Marine Science (VIMS) conducts surveys of oyster spatfall (or "setting") in Virginia waters throughout the summer reproductive period. This survey provides an estimate of the potential of a particular area for receiving a "strike 11 or set of oysters on the bottom and helps define the timing of setting events. Information obtained by this effort is valuable to the Virginia Marine Resources Commission (VMRC) for its shell repletion program, and to private oyster growers, both of whom are interested in maximizing the timing of shell planting. To assist in that area, a biweekly report of spatfall …
Species Richness Gradients Of Oak Forest Plants Along The Missouri River In Nebraska And Iowa, Steven B. Rolfsmeier
Species Richness Gradients Of Oak Forest Plants Along The Missouri River In Nebraska And Iowa, Steven B. Rolfsmeier
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
The upland deciduous forests of the Missouri River valley contain many plants typical of forests to the east of this area, which are assumed to have migrated northward and westward along the river in postglacial times. Previous workers have reported a gradient of decreasing species richness upstream among woody species, which is suggested to be the result of climatic gradients and differential dispersal capabilities of the immigrant species. Floristic work on all vascular species in eight woodland sites along the Nebraska-Iowa border quantifies the presence of similar gradients for herbaceous species, but of differing degrees. These studies also reveal the …
A Summary Of Continuing Research With Non Native Oysters At The Virginia Institute Of Marine Science, Roger L. Mann
A Summary Of Continuing Research With Non Native Oysters At The Virginia Institute Of Marine Science, Roger L. Mann
Reports
No abstract provided.
Rock Lobster Industry Advisory Committee Report To The Hon Minister For Fisheries., Fisheries Dept. Of Western Australia
Rock Lobster Industry Advisory Committee Report To The Hon Minister For Fisheries., Fisheries Dept. Of Western Australia
Fisheries management papers
To ensure full consultation with members of the fishing industry, the Committee arranged a series of meetings at the main coastal centres after the close of the fishing season. Each meeting followed the same format which allowed matters related to research and management to be discussed. After these meetings the Committee met to formulate its advice to the Minister on the matters raised during the Coastal Tour and from Committee discussions.
Fishing Licences As Security For Loans., Fisheries Department Of Western Australia.
Fishing Licences As Security For Loans., Fisheries Department Of Western Australia.
Fisheries management papers
During mid 1988 the Minister for Fisheries at that time, the Hon Julian Grill, sought the establishment of a committee of advice to examine security arrangements for financial institutions providing funds for fishing licences and fishing boats. The prime objective of the Committee was to examine and report upon the requirements for establishing fishing licences as a form of collateral for loans. The major issue before the Committee arose from licence holders seeding generally the means by which their investment in a fishing licence could be used as security, whereas lending institutions sought to ensure their loans would be adequately …
Foreign Investment In The Rock Lobster Industry. A Policy Statement By Gordan Hill Mla Minister For Fisheries, Fisheries Dept. Of Western Australia
Foreign Investment In The Rock Lobster Industry. A Policy Statement By Gordan Hill Mla Minister For Fisheries, Fisheries Dept. Of Western Australia
Fisheries management papers
Foreign investment in the rock lobster industry become an important issue during 1988 following the purchase of the rock lobster processing establishment INF Pty Ltd by the Japanese company Chungagon. On 24 June 1988 the then Minister for Fisheries, the Hon. Julian Grill, issued a press release setting out that foreign investment in the rock lobster industry would be put under scrutiny. The debate on rock lobster processing, involves not only questions of end-user ownership with the likely concentration on small-sized rock lobsters but also on the location of rock lobster processing establishments along the coast. In September 1988, with …
Distribution And Marketing Of Western Australia Rock Lobster., P. J. Monaghan
Distribution And Marketing Of Western Australia Rock Lobster., P. J. Monaghan
Fisheries management papers
This report describes the marketing and distribution of Western Australian rock lobster products in the major consuming countries namely, USA, Japan and Taiwan. It is based on a study which was commissioned by the Fisheries Department of Western Australia who sought, for the benefit of industry generally, an understanding of the world lobster markets.
Effects Of Hypoxia And Anoxia On Survival, Energy Metabolism, And Feeding Of Oyster Larvae (Crassostrea Virginica, Gmelin), J Widdows, Rie Newell, Roger L. Mann
Effects Of Hypoxia And Anoxia On Survival, Energy Metabolism, And Feeding Of Oyster Larvae (Crassostrea Virginica, Gmelin), J Widdows, Rie Newell, Roger L. Mann
VIMS Articles
The tolerance of Crassostrea virginica larvae to anoxia increases with developmental stage and body size. Median mortality times range from 11 h for prodissoconch larvae of 82 micro m (shell length) to 51 h for pediveliger larvae of 3 12 micro m, and 150 h for juvenile oysters. Simultaneous calorimetry and respirometry showed that in response to declining oxygen tension (P02), the rates of heat dissipation and oxygen uptake by oyster larvae are maintained independent of PO2 down to low Pc values (2 kPa for prodissoconch larvae and 8 kPa for pediveliger and juveniles). Therefore, total energy metabolism is sustained …
Catch Trends And Fish Utilization In Virginia's Offshore Recreational Pelagic Fishery, 1987-1988, Jon A. Lucy, Nancy J. Chartier, William D. Dupaul
Catch Trends And Fish Utilization In Virginia's Offshore Recreational Pelagic Fishery, 1987-1988, Jon A. Lucy, Nancy J. Chartier, William D. Dupaul
Reports
No abstract provided.
The Temporal And Spatial Distribution Of Blue Crab Larvae On The Mid-Atlantic Bight Adjacent To The Chesapeake Bay, 1982-1983, Lyle Michael Varnell
The Temporal And Spatial Distribution Of Blue Crab Larvae On The Mid-Atlantic Bight Adjacent To The Chesapeake Bay, 1982-1983, Lyle Michael Varnell
OES Theses and Dissertations
Recruitment processes are important information for the management of commercially and recreationally exploited marine species. Recruitment processes of the Chesapeake Bay's most important commercial and recreational species, the blue crab, are unknown, due in part to the lack of knowledge of the processes directly preceeding recruitment.
The present study was undertaken to investigate and explain the movement and developmental patterns of blue crab larvae while offshore. Interannual and intraseasonal variations of these patterns were also examined.
Sampling occurred from May to November during 1982 and 1983. Larvae were collected at three depths (neuston layer (upper 10 cm), one meter and …
A Mark-Recapture Study Of Striped Bass In The James River, Virginia : Annual Report 1988, Joseph G. Loesch, Bruce W. Hill
A Mark-Recapture Study Of Striped Bass In The James River, Virginia : Annual Report 1988, Joseph G. Loesch, Bruce W. Hill
Reports
EXECUTIVE SUMMARY
1. In the Spring 1988, 2,145 striped bass were tagged in the James River.
2. The mean size of striped bass tagged in 1988 (351.6 mm) was 117.9 mm smaller than mean size in 1987. The difference may be due to different locations and times of tagging.
3. The dominant age group in 1987 was the 1982 year class but in 1988 the dominant age group was the 1984 year class. This difference may also be accounted for by different locations and times of tagging.
4. The exodus of the mature fish out of the river after spawning …
A Colorado River Basin Authority: Opportunity For Sharing River Basin Management And Resources, David H. Getches
A Colorado River Basin Authority: Opportunity For Sharing River Basin Management And Resources, David H. Getches
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
32 pages.
Contains references.
The Delaware River Basin: Courts, Compacts And Commissions, R. Timothy Weston
The Delaware River Basin: Courts, Compacts And Commissions, R. Timothy Weston
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
112 pages (includes illustrations and 1 map).
Contains references.
Interstate Allocation Of The Platte River, J. David Aiken
Interstate Allocation Of The Platte River, J. David Aiken
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
27 pages.
Contains references.
Managing The Upper Rio Grande: Old Institutions, New Players, Steven J. Shupe
Managing The Upper Rio Grande: Old Institutions, New Players, Steven J. Shupe
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
19 pages.
Interjurisdictional Relations Under Federal Water Quality Law: A Guide Through The Maze, Michael C. Blumm, Daniel Rohlf
Interjurisdictional Relations Under Federal Water Quality Law: A Guide Through The Maze, Michael C. Blumm, Daniel Rohlf
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
53 pages.
Contains references.
Agenda: Boundaries And Water: Allocation And Use Of A Shared Resource, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Boundaries And Water: Allocation And Use Of A Shared Resource, University Of Colorado Boulder. Natural Resources Law Center
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
Conference organizers and/or faculty included University of Colorado School of Law professors David H. Getches, Lawrence J. MacDonnell and Charles F. Wilkinson.
Boundaries and Water: Allocation and Use of a Shared Resource is the topic of the Center's annual summer program on water this June. Most of the major rivers in the western United States are shared between two or more states. Often tribal governments play an important role in water allocation and use decisions. International considerations also may be involved in some cases. These interjurisdictional issues extend to groundwater as well as surface water.
This conference will provide the …
Southern Demersal Gillnet And Longline Fishery., Management Advisory Committee
Southern Demersal Gillnet And Longline Fishery., Management Advisory Committee
Fisheries management papers
In its report to the Ministier for Fisheries in November 1986, the Southern Western Australian Shark Working Group recommended the establishment of an Industry/Government Mangement Advisory Committee to provide managememt advice on the fishery to the Minister for Fisheries. The Advisory Committee held its first meeting in Albany on 23 February 1989. After being briefed on the state of shark stocks, the Committee's deliberations fell into three broad categories. In the first category there was sufficient time and information available to make a recommendation to the Minister for Fisheries. In the second category, discussion commenced, but was held over to …
Temporal And Spatial Patterns Of Abundance Of Age 0 Threadfin Shad (Dorosoma Petenense) In Overton Arm, Lake Mead, William Lee Pelle
Temporal And Spatial Patterns Of Abundance Of Age 0 Threadfin Shad (Dorosoma Petenense) In Overton Arm, Lake Mead, William Lee Pelle
Publications (WR)
Temporal and spatial patterns of age 0 threadfin shad (Dorosoma petenense) abundance and growth, in the Overton Arm of Lake Mead, were examined to evaluate the effects of resource availability on the young fish. This was part of a larger, game fishery enhancement study (Lake Mead Fertilization Project), designed to assess feasability of increasing survivorship of larval/juvenile shad by boosting phosphate levels, thereby increasing algal and zooplankton biomass, during the shad spawning period. Shad are the primary forage base for the striped bass (Morone saxatilis) and black bass (Macropterus salmoides) fisheries. Weekly samples were …
The Nebraska Natural Heritage Program: Two Year Progress Report, Mary Clausen, Mike Fritz, Gerry Steinauer
The Nebraska Natural Heritage Program: Two Year Progress Report, Mary Clausen, Mike Fritz, Gerry Steinauer
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
Since European settlement, human activities have totally eliminated the natural vegetation from approximately 50 percent of Nebraska’s landscape, and of that remaining most has been heavily impacted. As a result, numerous plants and animals have been extirpated from the state and many others are threatened.
The destruction of Nebraska’s natural diversity resulted in both public and private conservation groups recognizing the need for a centralized and accessible biological database for the state’s rare species and natural community types. Toward this end, the Nebraska Natural Heritage Program (NENHP) was established in August, 1987 through a cooperative effort between The Nature Conservancy …
Marine Fishery Population Trends Current And Emerging Natural Resource Issues, Herbert Austin
Marine Fishery Population Trends Current And Emerging Natural Resource Issues, Herbert Austin
Reports
No abstract provided.
Management Of The Perth Metropolitan Purse-Seine Fishery., N. Moore
Management Of The Perth Metropolitan Purse-Seine Fishery., N. Moore
Fisheries management papers
This report outlines the management plan for the limited entry purse-seine fishery for small pelagic fish in coastal waters between Lancelin and Cape Bouvard and seaward to the 200 mile limit of the Australian Fishing Zone. The plan includes Cockburn Sound.
Determination Of Marina Buffer Zones Using Simple Mixing And Transport Models : A Report To The Virginia State Dept. Of Health, Bureau Of Shellfish Sanitation As Part Of The Chesapeake Bay Initiatives Marine Pollution Abatement Initiative, John M. Hamrick, Bruce J. Neilson
Determination Of Marina Buffer Zones Using Simple Mixing And Transport Models : A Report To The Virginia State Dept. Of Health, Bureau Of Shellfish Sanitation As Part Of The Chesapeake Bay Initiatives Marine Pollution Abatement Initiative, John M. Hamrick, Bruce J. Neilson
Reports
This report describes the rationale, development and application of simple mixing and transport models for the determination of marina buffer zones and buffer zones for other point source discharges. Included in the report are two computer programs for implementation of the most general two dimensional transport model.
A Review Of The Shark Bay Pearling Industry., D. A. Hancock
A Review Of The Shark Bay Pearling Industry., D. A. Hancock
Fisheries management papers
While there are currently only two pearl culture leases in Shark Bay, two new applications for leases have already been received by the W.A. Fisheries Department. Increased interest is being generated about pearl culture in Shark Bay, which will need to be considered against the background of management plans designed to restrict further entry into other areas, notably the pearly industry of W.A from Exmouth Gulf northwards, and the pearling industry of the Northern Territory. Recent successes with pearl culture in both those areas, and the greatly increased revenues and high lease transfer values realised, must inevitably focus interest on …
Zinc Distributions In Sediments, The Common Mussel, Mytilus Edulis (L.), The American Oyster, Crassostrea Virginica (Gmelin), And The Commensal Pea Crab, Pinnotheres Ostreum (Say), Cheol Mo, Bruce Neilson
Zinc Distributions In Sediments, The Common Mussel, Mytilus Edulis (L.), The American Oyster, Crassostrea Virginica (Gmelin), And The Commensal Pea Crab, Pinnotheres Ostreum (Say), Cheol Mo, Bruce Neilson
Reports
Oysters and mussels of varying sizes and sediment samples were collected from oyster beds with different salinity regimes of three Virginian coastal plain rivers: Rappahannock River. James River. and Piankatank River. Zinc concentrations of 1) soft tissues. gut contents. and shells of the oysters. 2) soft tissues of the mussels. 3) pea crabs. and 4) sediment samples were measured with a flame atomic absorption (Flame AA) spectrophotometer. Particulate organic carbon and nitrogen concentrations ·of the sediments were measured with a carbon-nitrogen analyzer. The contribution of extraneous materials. such as gut contents. faeces. and pea crabs. to the variability in oyster …
Red Swamp Crayfish Ecology In Lake Mead, Suzanne E. Leavitt, Jennifer Stephens Haley, Mikell Hager, Donald H. Baepler, Nevada Department Of Wildlife
Red Swamp Crayfish Ecology In Lake Mead, Suzanne E. Leavitt, Jennifer Stephens Haley, Mikell Hager, Donald H. Baepler, Nevada Department Of Wildlife
Publications (WR)
Red swamp crayfish (Procambarus clarkii) were trapped in Flamingo Wash, an urban wash of Las Vegas, during four periods of 1988. Life history and reproductive success were determined. The trapped crayfish were marked and released into a study cove in Lake Mead as part of an experimental stocking program. Retrap data from the study cove were used to determine life history, habitat preferences, and movement patterns of the stocked crayfish. In addition, a literature search was done on red swamp crayfish ecology, including food preferences, life history, habitat preferences and fish predation.
Laboratory And Field Studies Of Oyster Larvae Settlement On Three Substrates, Oyster Shell, Tire Chips, And Expanded Shale, And The Relative Mobility Of The Three Substrates, Mary C. Gibbons, Roger L. Mann, L. D. Wright
Laboratory And Field Studies Of Oyster Larvae Settlement On Three Substrates, Oyster Shell, Tire Chips, And Expanded Shale, And The Relative Mobility Of The Three Substrates, Mary C. Gibbons, Roger L. Mann, L. D. Wright
Reports
No abstract provided.