Arena is a software package intended to help e-commerce strategy researchers and designers test buying and selling strategies under different scenarios. It implements and adheres to a set of design criteria intended to ensure its simulation ability as well as prolonging its usable lifetime. The process of implementing Arena involved conducting background research into current strategies and the...

Background/Aim. Dietary intake of n-3 long-chain polyunsaturated fatty acids (LC-PUFA) is important in prevention and treatment different diseases. In general population, the average LC-PUFA often significantly lower than recommended levels. Fish lipids are rich sources these acids, which most eicosapentaenoic (20:5 n-3, EPA) docosahexaenoic (22:6 DHA) acids. This study was designed to determin...

important components affecting recruitment of fish populations. Successful recruitment depends on the planktonic stages being retained in, or transported to, nursery areas favourable for growth and survival. Advective loss of larvae into less favourable areas would clearly have a negative impact on recruitment (Iles and Sinclair 1982), particularly in upwelling systems where offshore loss of la...

Geostatistical techniques were applied and a series of spatial indicators were calculated (occupation, aggregation, location, dispersion, spatial autocorrelation and overlap) to characterize the spatial distributions of European anchovy and sardine during summer. Two ecosystems were compared for this purpose, both located in the Mediterranean Sea: the Strait of Sicily (upwelling area) and the N...

Total lipid and phospholipid recovery as well as amino acid quality and composition from cuttlefish (Sepia officinalis) and sardine (Sardina pilchardus) were compared. Enzymatic hydrolyses were performed using the three proteases Protamex, Alcalase, and Flavourzyme by the pH-stat method (24 h, pH 8, 50 degrees C). Three fractions were generated: an insoluble sludge, a soluble aqueous phase, and...

Environmental DNA (eDNA) has become a popular non-invasive method to study the presence of organisms in environment. To ecological behavior and migration routes small pelagic fishes that are difficult trace with traditional capturing methods, we developed multiplex real-time PCR assays measure eDNA chub mackerel, blue Japanese jack anchovy, sardine, Pacific saury. test validity, samples collect...

A multi-species approach to fisheries management requires taking into account the interactions between species in order to improve recruitment forecasting of the fish species. Recent advances in Bayesian networks direct the learning of models with several interrelated variables to be forecasted simultaneously. These models are known as multi-dimensional Bayesian network classifiers (MDBNs). Pre...

In an effort to contribute resilient food and nutritional security in urban slums, a system approach was applied understand the key socio-economic factors driving fish species consumption Kibera, largest informal settlement Africa located Nairobi, Kenya. Data were collected from 385 randomly selected households using structured questionnaire. A multivariate probit model estimate relationship be...

Fish schools of sardine, anchovy, and horse mackerel can be discriminated from each other, under given conditions, using a set of parameters extracted from echointegration data. Trawl sampling and hydroacoustic data were collected in 1992 and 1993 in the Thermaikos Gulf by using a towed dual-beam 120 kHz transducer. The parameters extracted from the available schools were used to train multi-la...

For many marine species and habitats, climate change and overfishing present a double threat. To manage marine resources effectively, it is necessary to adapt management to changes in the physical environment. Simple relationships between environmental conditions and fish abundance have long been used in both fisheries and fishery management. In many cases, however, physical, biological, and hu...