In this work for the first time data from two twin stations (Barcelona, urban background, and Montseny, regional background), located in the northeast (NE) of Spain, were used to study the trends of the concentrations of different chemical species in PM10 and PM2.5 along with the trends of the PM10 source contributions from the positive matrix factorization (PMF) model. Eleven years of chemical...

The subject of this article is an assessment reference points and the state black halibut stock in Barents Sea. Despite abundance information accumulated over years fishing research, uncertainty dynamics remains quite high. describes analyzes all currently known sources about –data from surveys, statistics age structure catches. Several types models are being built – production age-structured m...

The second session of the Scientific Committee (SC) of the Commission for the Conservation and Management of Highly Migratory Fish Stocks in the Western and Central Pacific Ocean (WCPFC) convened August 7-18, 2006 in Manila, Philippines. The SC’s primary activity is scientific assessment of stock status. At the Manila meeting, reports on the status of bigeye, yellowfin, and albacore tuna stocks...

Implementation of an ecosystem approach to fisheries requires advice on trade-offs among fished species and between fisheries yields and biodiversity or food web properties. However, the lack of explicit representation, analysis and consideration of uncertainty in most multispecies models has limited their application in analyses that could support management advice.We assessed the consequences...

Las pesquerías multiespecíficas de peces en Cuba incluyen alrededor 150 especies, diferentes artes pesca que se utilizan simultáneamente y un número elevado puertos desembarques, lo dificulta el monitoreo la evaluación estos recursos, por cual manejo ha sido limitado. Por ello nos propusimos evaluar estado actual, así como las compensaciones futuras biomasa, captura ganancias especies más vulne...

The provided researches on the stock abundance dynamics of Pacific salmon in Kamchatka allowed to work out a unite scheme harvest control rules (HCR) for most important regional utits. basis data used included run, escapement and catch 1990–2010s. Theoretical mathematical principles substantiation HCR, based use models “stock recruitment”, are demonstrated article. Modeling HCRs is made view pr...