4,791 research outputs found
The Economic impact of Florida's recreational boating industry in 1985
The recreational boating industry is an important component of Florida's economy. Previous Florida Sea Grant College supported research has documented this economic importance to the state's economy in 1980 (see Milon and Riddle, 1983, and Milon et al. 1983). Since that initial research, the manufacturing, retailing, and service sectors comprising
the industry have continued to grow and prosper as the state's resident and tourist populations increased. This report is an update on the economic significance of the recreational boating industry in Florida since 1980 based on economic indicators of change within the industry. (21pp.
Polarization spectroscopy of an excited state transition.
We demonstrate polarization spectroscopy of an excited state transition in room-temperature cesium vapor. An anisotropy induced by a circularly polarized pump beam on the D2 transition is observed using a weak probe on the 6P3/2→7S1/2 transition. At high pump power, a subfeature due to Autler-Townes splitting is observed that theoretical modeling shows is enhanced by Doppler averaging. Polarization spectroscopy provides a simple modulation–free signal suitable for laser frequency stabilization to excited state transitions
Reported Trip Costs, Gross Revenues, and Net Returns for U.S. Atlantic Pelagic Longline Vessels
Logbook set and trip summary data (containing catch and cost information, respectively) collected by NOAA’s National Marine Fisheries Service (NMFS) were analyzed for U.S. pelagic longline vessels that participated in Atlantic fisheries in 1996. These data were augmented with vessel information from the U.S. Coast Guard. Mean fish weights and ex-vessel prices from NMFS observers and licensed seafood dealers, respectively, were used to estimate gross revenues. Comparisons revealed that net returns varied substantially by vessel size and fishing behavior (i.e. sets per trip, fishing location, season, and swordfish targeting). While the calculated economic effects of proposed regulations will depend on the descriptive statistic chosen for analysis, which itself depends on the type of analysis being conducted, results show that considering heterogeneity within this fleet can have a significant effect on predicted economic consequences
A BIOECONOMIC ANALYSIS OF MANAGEMENT ALTERNATIVES FOR THE U.S. NORTH ATLANTIC SWORDFISH FISHERY
A bioeconomic model of the North Atlantic swordfish (Xiphias gladius) fishery is developed to evaluate policy-relevant management options as changes from the status quo. The model accounts for heterogeneity in vessel and trip characteristics, including the number of sets placed and catch composition. Results indicate that five-year economic returns to the U.S. Atlantic pelagic longline (PLL) fleet can be increased by reducing juvenile swordfish mortality or fleet size (and possibly changing fleet composition). These policies may not be effective, however, if implemented simultaneously. Domestic management of the swordfish fishery was found to be effective, despite the small share of the international quota. Lastly, producer surpluses earned by the domestic PLL vessel owners are significantly affected by: (1) changes in swordfish demand (due to, for example, the recent chef's boycott), (2) success at negotiating the swordfish quota share, (3) catch rates, and (4) relative costs of heterogeneous vessels and trip behavior.Resource /Energy Economics and Policy,
Economic profile of Florida's marine life industry
The marine life industry in Florida is defined as the harvest of live marine specimens (fish and
invertebrate species including plants, live rock and sand, and small “critters”) for commercial use,
primarily aquariums. This paper summarizes data collected on the industry since 1990, including
total landings, revenues, and trends over time. Regional analysis shows where the primary collecting
areas are located in Florida. Seasonal analysis shows when the majority of landings occur within the
year. Statistics on the number of participants by type (i.e., collector versus wholesaler) provide
insight into the size of the industry. Trends are evaluated in terms of changes across the 9-year
period from 1990 to 1998. In general, the number of licensed collectors has increased substantially,
landings of fish and animal invertebrates peaked in 1994, angelfish dominated the fish landings, live
rock dominated the invertebrate landings, and the average landings per trip have remained relatively
constant. (67pp.
1999 US tropical fish wholesaler survey: results and implications
A survey of marine life wholesalers was initiated in 1999 as a first step towards understanding the
nature of Florida’s marine life industry, the demand for Florida products, and the need for changes in
the way the industry is regulated. Florida firms deal primarily in marine species and collect much of
their own product. Wholesalers outside of Florida handle more freshwater species and purchase most
of their inventory, the majority from overseas suppliers. Dealers predict that the average firm size
will continue to grow as the industry consolidates. Niche markets for eco-friendly product will gain
momentum. In Florida, marketing strategies should point to the high quality of Florida species with
emphasis on the growing popularity of invertebrates. Wholesalers should look to provide buyers of
Florida product with more consistent quantities throughout the year. Resource managers will be
challenged to find ways to protect over-harvested species without interfering with the collection of
abundant species while considering the effect of new regulations. (42pp.
Aquaculture and marketing of the Florida Bay Scallop in Crystal River, Florida
The overall goal of this study was to develop a new fishery resource product through open-water
aquaculture for the west coast of Florida that would compete as a non-traditional product through market
development. Specific objectives were as follows:
I. To grow a minimum of 50, 000 juvenile scallops to a minimum market size of40 mm in a cage
and float system in the off-shore waters of Crystal River, Florida.
2. To determine the growth rate, survival, and time to market size for the individuals in this system
and area to other similar projects like Virginia.
3. To introduce local fishermen and the aquaculture students at Crystal River High School to the
hatchery, nursery, and grow-out techniques.
4. To determine the economic and financial characteristics of bay scallop culture in Florida and
assess the sensitivity of projected costs and earnings to changes in key technical, managerial, and
market related parameters.
5. To determine the market acceptability and necessary marketing strategy for whole bay scallop
product in Florida. (PDF has 99 pages.
How well does NLO pQCD describe strangeness in collisions at = 200 GeV in STAR?
We present measurements of the transverse momentum spectra for
, , and their antiparticles in p+p
collisions at . The extracted mid-rapidity yields and
are in agreement with previous experiments while
they have smaller statistical errors. We compare the measured spectra for
and to the latest available calculations from
NLO pQCD and see good agreement for the above 1.5 GeV/c.Comment: conference proceedings, Strangeness in Quark Matter 2004, 5 pages,
submitted to Journal Physics G, final version submitted to journal incl.
modifications requested by edito
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