Ángel Guillén- Pontifical Catholic University of Peru
Ángel Guillén
- Pontifical Catholic University of Peru
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10
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Introduction
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Publications
Publications (10)
El tratado de libre comercio entre los países de Centroamérica, República Dominicana y los Estados Unidos (DR-CAFTA), que entró en vigencia en el 2006, estipula un proceso de desgravación para los productos agrícolas, con desgravación diferenciada para los productos denominados “sensibles”, muchos de los cuales se desgravarán por completo entre 202...
Three experiments were conducted to investigate the growth, survival, and standardized cohort biomass of Pacific bluefin tuna, Thunnus orientalis, larvae fed nutritionally enhanced prey during the first week of feeding using two commonly used, commercially available enrichment media, AlgaMac Enrich and Marine Glos. T. orientalis larvae exhibited ex...
We use the approach of Qu and Perron (Econom J 16(3):309–339, 2013) for the modeling and inference of volatility of a set of commodity prices in the presence of random level shifts of unknown timing, magnitude and frequency. Our approach contributes to the study of commodities in several aspects. First, we test for the presence of a genuine long-me...
Comparative feeding studies of yellowfin (Thunnus albacares) (YFT) and Pacific bluefin (Thunnus orientalis) (PBT) tuna larvae were conducted between 2011 and 2014 at the Inter-American Tropical Tuna Commission’s Achotines Laboratory in Panama and the Kinki University Fishery Laboratory in Japan as part of a 5-year research project of the SATREPS Pr...
Perron and Wada (J Monet Econ 56:749–765, 2009) propose a new method of decomposition of the GDP in its trend and cycle components, which overcomes the identification problems of models of unobserved components (UC) and ARIMA models and at the same time, admits non-linearities and asymmetries in cycles. The method assumes that output can be represe...
Early-stage mortality due to surface water tension-related death and due to sinking to the tank bottom was investigated for yellowfin tuna, Thunnus albacares (YFT), larvae. Different aeration rates and rearing water surface conditions were examined to evaluate the effect on larval survival, swim bladder inflation and growth. The percentage survival...
Effect of water temperature on embryonic development of yellor,vfin tuna was investigated. Eggs were incubated at different water temperatures:22, 24, 26C (Experiment-1) arrd 28, 30, 32C (Experiment-2). Developmental condition was observed and the elapsed time from the 2 or 4 cell stages until hatching was mea-sured. Hatching occurred at 18.58 h fo...
