Catch quotas for walleye pollock Gadus chalcogrammus, the dominant species in the groundfish fishery off Alaska, are set by applying harvest control rules to annual estimates of spawning stock biomass (SSB) from age-structured stock assessments. Adult walleye pollock abundance and maturity status have been monitored in early spring in Shelikof Strait in the Gulf of Alaska for almost three decad...

The use of computational intelligence systems such as neural networks, fuzzy set, genetic algorithms, etc. for stock market predictions has been widely established. This paper presents a generic stock pricing prediction model based on rough set approach. To increase the efficiency of the prediction process, rough sets with Boolean reasoning discretization algorithm is used to discretize the dat...

Melnychuk et al.’s comments in PNAS (1) that successful fisheries management requires the “capacity to limit fishing pressure” and “scientists are generally unanimous in calling for stronger management” echo comments made in many earlier publications. However, their conclusions about specific fisheries and management approaches lack credibility. Their analysis relies on an opinion survey, using...

We assess the potential consequences of recent (2012) fishing conditions on the future biological status of the three tropical tuna stocks, based upon the new tropical tuna stock assessments. Projected status in 2032 is reported relative to spawning biomass and fishing mortality reference points in absolute terms (as a median of the projection outcomes) and in probabilistic terms. Here, we have...

This paper presents the Energy, Carbon and Cost Assessment for Building Stocks (ECCABS) model, which is a bottom-up model to assess energy-saving measures (ESM) and carbon dioxide (CO2) mitigation strategies in building stocks. The model is based on a one-zone hourly heat balance that calculates the net energy demand for a number of buildings representative of the building stock and an addition...

Citizen science offers a potentially cost-effective way for researchers to obtain large data sets over large spatial scales. However, it is not used widely to support biological data collection for fisheries stock assessments. Overfishing of demersal fishes along 1,000 km of the west Australian coast led to restrictive management to recover stocks. This diminished opportunities for scientists t...

Stock assessment of Rhizoprionodon acutus (Ruppell, 1837) was made along with a few biological characteristics in the commercial landings during 2012-2014 from Gujarat waters of India to understand the population dynamics and stock status of the species. L∞, K and t0 estimated were 93.8 cm, 0.32 yr -1 and -1.3 yr, respectively. Total mortality rate (Z), fishing mortality rate (F) and natural mo...

This study investigates the extent to which people make financial decisions on the basis of their dispositional tendency to engage in a specific emotion, such as anger or anxiety. We predicted that trait anger is associated with the decision to invest, whereas trait anxiety motivates individuals to avoid investments. We employed a six question survey, considering real life investment decisions,...

the focal objective of this study is to analyze and explore the co-movement of pakistan stock market (kse-100) with the stock market of developed countries (us, uk, canada, australia, germany, japan, france and neither land) which have portfolio investment in pakistan by applying co-integration approach using johansen and juselius multivariate and bi variate co-integration. secondary data of st...