منابع مشابه
Fishery Stock Assessment Models
Historically, stock assessments of Atlantic blue marlin (Makaira nigricans) and white marlin (Tetrapturus albidus), conducted under the auspices of the International Commission for the Conservation of Atlantic Tunas (ICCAT), have been restricted to production modeling approaches. Production models are used due to the unique fisheries and biological aspects of the species which result in a pauci...
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Andrology laboratories need to produce reliable results for appropriate diagnostic and health care decisions. Since semen analysis is highly complex and procedurally difficult to standardize, quality control (QC) is essential to detect and correct systematic errors and high variability of results. The large discrepancies between assessments of sperm concentration and morphology in different lab...
متن کاملApplication to fishery stock assessment
We consider a Monte Carlo Markov chain (MCMC) algorithm for fisheries stock assessment. The biomass of this stock at a given year could be modeled as a nonlinear function of the biomass and catch for the two previous years, of different parameters (recruitment, growth rate, natural mortality rate). Given a time series of annual catch and effort data, we would like to achieve the best fitting be...
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Fishery biology, particularly the applied aspect of stock assessment, became a truly quantitative science in the mid-1950s, when the Beverton & Holt and Schaefer"workhorse" models for stock assessment were produced. Unfortunately, the computations involved in using either of these models and their variants and successors were generallyquite tedious. In the 1960s and early 1970s, various authors...
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With the advent of human assisted reproduction in the year 1978 numerous techniques were developed to isolate spermatozoa capable to fertilize oocytes. While early methodologies only focused on the aim of isolating viable, motile spermatozoa, with further progress of assisted reproductive technology, particularly for ICSI, it rapidly became clear that these two parameters are insufficient for t...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 2013
ISSN: 0021-5392,1349-998X
DOI: 10.2331/suisan.79.65