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  • 1
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    Estimation of Standardized Effort in the Heterogeneous Gulf of Mexico Shrimp Fleet (2021)
    In:  http://aquaticcommons.org/id/eprint/9817 | 403 | 2012-08-16 14:25:35 | 9817 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-09
    Description: In this paper we estimate nominal and standardized shrimping effort in the Gulf of Mexico for the years 1965 through 1993. We accomplish this by first developing a standardization method (model) and then an expansion method (model). The expansion model estimates nominal days fished for noninterview landings data. The standardization model converts nominal days fished to standard days fished. We then characterize the historical trends of the penaeid shrimp fishery byvessel configuration, relative fishing power, and nominal and standardized effort. Wherever possible, we provide comparison with previous estimates by the National Marine Fisheries Service, NOAA.
    Keywords: Fisheries ; Management
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 23-33
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    PAPER (OA)
  • 2
    Electronic Resource
    Electronic Resource
    Cyclodehydration reactions using molten sodium tetrachloroaluminate (1979)
    s.l. : American Chemical Society
    The @journal of organic chemistry 44 (1979), S. 3724-3725 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01335a026
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Bis homologation of a naphthalene to a dihydroheptalene via carbenoid addition (1975)
    s.l. : American Chemical Society
    The @journal of organic chemistry 40 (1975), S. 118-120 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00889a029
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  • 4
    Electronic Resource
    Electronic Resource
    Users' Reactions to a Corporate-Designed Current-Awareness Bulletin (1980)
    s.l. : American Chemical Society
    Journal of chemical information and modeling 20 (1980), S. 179-181 
    Details
    ISSN: 1520-5142
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ci60023a014
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  • 5
    Electronic Resource
    Electronic Resource
    Stocking Strategies and an Investment Analysis for Producing Penaeus setiferus as a Live Bait-Shrimp on the Texas Gulf Coast (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the World Aquaculture Society 20 (1989), S. 0 
    Details
    ISSN: 1749-7345
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: An economic and investment analysis was performed to determine the viability of bait-shrimp farming in Texas. A single pond analysis producing 5–5.5g shrimp always had higher returns above selected cost (RASC) than producing 4–4.5g shrimp. Stocking 0.01g shrimp had a higher RASC than stocking 0.25g, 0.50g or 0.75g shrimp. In the 20 pond analysis, which accounted for marketing considerations, stocking 0.25g shrimp had the highest RASC. The investment analysis, assuming average management, was declared bankrupt by the end of the fifth year. Under “excellent” management the internal rate of return was only 11.7%. It is unlikely that bait-shrimp farming will become a viable industry in Texas in the near future.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-7345.1989.tb00526.x
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  • 6
    Electronic Resource
    Electronic Resource
    Production Costs of Juvenile Penaeid Shrimp in an Intensive Greenhouse Raceway Nursery System (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the World Aquaculture Society 19 (1988), S. 0 
    Details
    ISSN: 1749-7345
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This analysis compared the use of an intensive nursery raceway system with direct stocking of post-larval shrimp into growout ponds. The intensive raceway system allows two crops to be produced in Texas where only one crop is feasible with direct stocking. Both investment and operational costs are analyzed for three types of greenhouses and three types of raceways where the types vary in cost and lengths of life. Three growout pond stocking densities and two farm sizes were evaluated for each combination of greenhouse and raceway type. Investment costs ranged from $142,000 for the small farm using the least expensive greenhouse and raceway and utilizing the lowest stocking density, to about $2.3 million for the large farm using the most expensive greenhouse and raceway and the highest stocking density in the growout ponds. The operational cost was $7.60 and $9.71 respectively per 1,000 one gram juveniles produced. Under technology available at the time of this analysis, direct stocking growout ponds with PIS and producing one crop per year is more profitable than stocking one gram juveniles and producing two crops per year on the Texas coast.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-7345.1988.tb00943.x
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  • 7
    Electronic Resource
    Electronic Resource
    Electrical detection of airborne particulates using surface ionization techniques (1975)
    s.l. : American Chemical Society
    Environmental science & technology 9 (1975), S. 334-336 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es60102a001
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  • 8
    Electronic Resource
    Electronic Resource
    CHANNEL MORPHOLOGY EVOLUTION AND OVERBANK FLOW IN THE GEORGIA PIEDMONT (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 35 (1999), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : Historic changes in stream channel morphology were investigated in the Georgia Piedmont to better understand the hydrologic processes and functioning of the region's riverine systems. USGS gaging station data and channel geomorphology data were collected from thirty study sites in the Upper Oconee River Basin for flood frequency analysis. Historic and modern (i.e., present-day) channel capacity discharge (i.e., overbank flow) was calculated using Manning's equation and historic channel cross-section records. The recurrence interval for overbank flow was estimated for each site from flood frequency data. Results indicate that channel expansion has occurred throughout the basin, especially in upper reaches. Recurrence intervals for modern overbank events were variable and generally high ranging from 〈 2 to 〉 500 years for first to third order streams. They were less variable and lower for fourth and fifth order streams, ranging from 〈 2 to 3 years. Potential depositional thresholds were identified that exemplify the complex response of sediment distribution patterns throughout the basin. Results indicate overbank flows occur less frequently now than they once did due to historic accelerated sedimentation and subsequent channel expansion. One application of these findings is that these basin processes are likely applicable across the region and may impact the hydrologic functioning of associated Piedmont riverine wetlands that depend on flooding regimes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1999.tb03589.x
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  • 9
    Electronic Resource
    Electronic Resource
    The Impact of Aquaculture Pond Engineering Design on the Returns to Shrimp Farms (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the World Aquaculture Society 24 (1993), S. 0 
    Details
    ISSN: 1749-7345
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The effects of pond design on the internal rate of return of a 40 ha shrimp farm is evaluated. The influence of four pond construction parameters (pond size, pond shape, levee crown size and canal bank slope) on the total amount of earth moved and construction costs is determined using an engineering design model. The bioeconomic model, MARSIM, calculates returns to farms with the design modifications. Of the four parameters, the pond shape is the most influential over the range considered (from 17% to 8%). Pond size is the second most important parameter (from 17% to 21%). Levee width and canal bank slope influence are of lesser importance (〈1% change).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-7345.1993.tb00146.x
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  • 10
    Electronic Resource
    Electronic Resource
    Indoor Intensive Red Drum Aquaculture: A Stochastic Sensitivity Analysis (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the World Aquaculture Society 25 (1994), S. 0 
    Details
    ISSN: 1749-7345
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This research uses stochastic sensitivity analysis to examine an indoor intensive red drum aqua-culture facility. Important biological and economic factors are varied one at a time to determine the chance of survival and the chance of success. Results indicate that this type facility is very stable since all but one scenario had a 100% chance of surviving. This stability occurs because harvesting is spread uniformly through the year. Chances of being an economic success range from 0 to 100% depending on the investor's required rate of return and the assumed level of biological and economic factors considered in this analysis. An investor's interest in red drum farming will depend on his individual required rate of return, his management capabilities, the market conditions and his willingness to take a risk. It is certain, however, that a 0% chance of economic success will occur for a red drum farm under poor management.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-7345.1994.tb00808.x
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