Comment on "Fisheries Management"

The recent article by O’Leary et al. (2011) raises an important question about the relationship between science and those who manage fisheries. They contend that fishery managers do not give due cognisance to scientific advice and consistently set Total Allowable Catches (TACs) above values advised by scientists (which they define as ‘‘political adjustment’’). The authors claim that the consequence of this is that there is a high probability of stock collapse in the next 40 years. They use a simulation model to argue that this probability may exceed 80% at the mean level of political adjustment adopted by managers, depending on the degree of environmental variability and life history strategy of the fish

Color television study Final report, Nov. 1965 - Mar. 1966

Color television camera for transmission from lunar and earth orbits and lunar surfac

The Economic and Health Effects of the Chemical Spill in the Elk River

In January 2014, Freedom Industries spilled 4-methylcyclohexylmethanol, a chemical foaming agent used in coal processing, from a storage facility into the Elk River in West Virginia. This chemical spill, one of the most significant in U.S. history, adversely affected the drinking water supply of over 300,000 individuals in the Charleston, West Virginia Metropolitan area. We use synthetic control methods to estimate the casual effects on macro-economic growth and infant health outcomes from this water crisis. We find a significant decrease in 5-minute Apgar Scores, a measure of how babies fare in the birthing process and outside of the womb, after the chemical spill. We do not find significant effects for infant birthweight or gestational age. We find a statistically insignificant decrease of per capita GDP in the Charlestown, West Virginia area compared to the synthetic control of 3% two years after the chemical spill

Stock assessment diagnostics for South Atlantic swordfish

Catch and catch per unit effort are used to fit a biomass dynamic stock assessment model. A variety of diagnostics are then used to check for violations of model assumptions and to explore the information in the data. Potential problems are identified and ways to overcome or avoid them discussed.Versión del edito

Stock assessment diagnostics for North Atlantic swordfish

Catch and catch per unit effort are used to fit a biomass dynamic stock assessment model. A variety of diagnostics are then used to check for violations of model assumptions and to explore the information in the data. Potential problems are identified and ways to overcome or avoid them discussed.Versión del edito

Kobe II strategy matrices for North Atlantic swordfish based on catch, fishing mortality and harvest control rules.

Scientific stock assessment advice given by the SCRS is presented in the form of the Kobe II Strategy Matrix (K2SM). Traditionally the K2SM shows the probabilities by year for different catches of achieving the management objective of ensuring that the stock biomass is greater than BMSY and fishing mortality less than FMSY. However, a K2SM can also be used, as in this paper, to help guide discussion about choice of reference points for use as part of a Harvest Control Rule.Versión del edito

Computer recommendations for an automatic approach and landing system for V/STOL aircraft. Volume 2 - Equations

Automatic approach and landing system for V/STOL aircraf