9,774 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.
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.
POLICY IMPLICATIONS OF RESTRICTED ACCESS STRATEGIES FOR MULTISPECIES FISHERIES
The commercial fishery that primarily targets king mackerel, stone crab, snappers, groupers and spiny lobster in Monroe and Collier counties is one of the most important commercial fisheries in Florida. These species currently face problems of overfishing and/or over capitalization. A dual-based restricted profit function is used to estimate the economic and technical interactions that exist in this multi-species fishery, primarily using own-price and cross-price elasticities of supply. It is found that the production technology does not exhibit input-output separability and nonjointness-in-inputs over all species groups. This result suggests that these key species may be more efficiently managed as a group, rather than with the use of existing single species regulations. Spiny lobster and stone crab, the dominant value species in the fishery, are shown to have very elastic substitution relationships with king mackerel.Resource /Energy Economics and Policy,
Recreational anglers' valuation of near-shore marine fisheries in Florida
This report describes and summarizes the results from a state-wide survey of Florida
resident saltwater anglers. The survey was designed to provide estimates of the economic value
anglers place on marginal changes in management of selected near-shore marine species.
The Contingent valuation method was used to elicit angler willingness to pay for changes
in management for redfish, seatrout , mullet, sheepshead, pompano. and king mackerel.
Contingent valuation is a process in which respondents are presented with a detailed scenario that
describes an opportunity to express their willingness to pay for a proposed change in current
conditions. The process consists of three parts. First. the change in current conditions, or the
"good" to be valued is described. Second, the payment method is described. The payment
method is usually closely related to typical methods of buying goods similar to the one to be
valued. Finally. the respondent is asked how much they would pay for the good described in
the scenario. A special saltwater fishing license stamp that would allow the holder to take
advantage of the described management change was used as a payment mechanism. (PDF contains 147 pages.
Phytometric intelligence sensors
Methods and apparatus for determining when plants require watering, and methods of attending to the watering of plants including signaling the grower that the plants are in need of hydration are provided. The novel methods include real-time measurement of plant metabolics and phytometric physiology changes of intrinsic physical or behavioral traits within the plant such as determining physiological flux measurement of enzyme flux due to environmental changes such as the wind and drought stress, soil and plant mineral deficiencies, or the interaction with a bio-control for organic disease control including, cell movement, signal transduction, internal chemical processes and external environmental processes including when plants require watering, and methods of attending to the watering of plants including signaling the grower that the plants are in need of hydration
Derived neutrophil lymphocyte ratio is predictive of survival from intermittent therapy in advanced colorectal cancer: a post hoc analysis of the MRC COIN study
BACKGROUND: The phase III COntinuous or INtermittent (COIN) trial failed to show non-inferiority of intermittent compared with continuous chemotherapy for advanced colorectal cancer in overall survival (OS). The present analysis evaluated whether the derived neutrophil to lymphocyte ratio (dNLR) could predict the effect of intermittent vs continuous chemotherapy on OS in patients with advanced colorectal cancer. METHODS: A post hoc exploratory analysis of COIN arms A and C was performed. Landmark analysis was conducted on all patients with available WBC and neutrophils data. The dNLR was calculated using a formula which has previously demonstrated predictive power in cancer patients: dNLR=ANC/(WBC−ANC). A high dNLR was defined using a cut-off value of ⩾2.22. Derived neutrophil to lymphocyte ratio was then correlated with clinical outcomes. Survival curves were generated based on dNLR using the Kaplan–Meier method. Comparison between groups was performed using Cox regression. RESULTS: A total of 1630 patients were assigned to the continuous (N=815) or intermittent (N=815) arms. There was a strong association between dNLR level and OS. The median survival times in the ITT population were 18.6 months and 12.5 months for patients with low and high dNLR, respectively (HR=1.70; 95% CI=1.52–1.90; P<0.001). The estimate of the hazard ratio did not alter substantially (HR=1.54) after adjusting for treatment, tumour status, number of metastatic sites, alkaline phosphate and platelet count. CONCLUSIONS: Derived neutrophil to lymphocyte ratio is strongly prognostic for survival in the COIN intermittent vs continuous treatment arms. Derived neutrophil to lymphocyte ratio does not predict for detrimental survival in patients treated with intermittent therapy
International trade in live, ornamental "fish" in the US & Florida
The importance of international markets as a source of live, ornamental “fish” supply is growing due
to more stringent wild-harvest regulations in Florida. In addition, foreign markets are increasing in
importance as a source of demand for Florida purveyors of live, ornamental “fish”. Florida plays an
important role in this growing international market. Trends in imports and exports of live,
ornamental “fish” are described for two primary data sets: U.S. Customs and U.S. Fish and Wildlife
Service. These trends are described primarily for the 1994-98 period for Florida and the United
States. Florida imports and exports are described for the two major ports: Miami and Tampa. The
most important trading countries are also described. This information will help Florida purveyors of
live, ornamental “fish” better understand the international markets upon which they have become
more dependent. (PDF has 18 pages
On the mass segregation of stars and brown dwarfs in Taurus
We use the new minimum spanning tree (MST) method to look for mass
segregation in the Taurus association. The method computes the ratio of MST
lengths of any chosen subset of objects, including the most massive stars and
brown dwarfs, to the MST lengths of random sets of stars and brown dwarfs in
the cluster. This mass segregation ratio (Lambda_MSR) enables a quantitative
measure of the spatial distribution of high-mass and low-mass stars, and brown
dwarfs to be made in Taurus.
We find that the most massive stars in Taurus are inversely mass segregated,
with Lambda_MSR = 0.70 +/- 0.10 (Lambda_MSR = 1 corresponds to no mass
segregation), which differs from the strong mass segregation signatures found
in more dense and massive clusters such as Orion. The brown dwarfs in Taurus
are not mass segregated, although we find evidence that some low-mass stars
are, with an Lambda_MSR = 1.25 +/- 0.15. Finally, we compare our results to
previous measures of the spatial distribution of stars and brown dwarfs in
Taurus, and briefly discuss their implications.Comment: 10 pages, 8 figures, accepted for publication in MNRA
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