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| Caill-milly, Nathalie; Lissardy, Muriel; Bru, Noëlle; Dutertre, Marie-adèle; Saguet, Cassandre. |
| For data-limited stocks (DLS), professional fishing data can be used as a potential source of information, especially in the absence of appropriate scientific survey, to understand abundance evolution under realistic hypothesis on resource catchability. This work focuses on a data-filtering approach, the selected fishing effort must reflect vessel activity that is least dependent on their technical characteristics and as stable as possible over time. The variable of interest is landing by fishing sequence (landing for a given gear, gear mesh, day and ICES statistical rectangle) called LPUE. In order to account for the abundance of the species, it was necessary to consider the discards. The method thus proceeds in 4 steps: (i) focus on LPUE variability and... |
| Tipo: Text |
Palavras-chave: Data-limited stock; Commercial data; Discards; LPUE; Professional knowledge; Data filtering. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00503/61495/65305.pdf |
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| Leaute, Jean-pierre; Caill-milly, Nathalie; Lissardy, Muriel; Bru, Noelle; Dutertre, Marie-adele; Saguet, Cassandre. |
| The stocks of whiting (Merlangius merlangus), pollack (Pollachius pollachius) and striped red mullet (Mullus surmuletus), are considered by ICES as Data Limited Stocks (DLS) for the Bay of Biscay areas, those bordering the Iberian Peninsula as well as the Celtic Sea for red mullet. In the case of insufficient data for an analytical assessment, ICES has recommended, for 2013 and 2014, to precautionarily reduce landings by 20 % compared to the period 2009-2011 for these 3 stocks. In order to improve knowledge to fill the gaps in the status of these stocks, and to extract them from the DLS category, the ROMELIGO project has: i) analyzed available data on both catches and professional fishing activity, Captures per Unit of Effort (CPUE) to identify reference... |
| Tipo: Text |
Palavras-chave: Merlan; Lieu jaune; Rouget barbet de roche; Golfe de Gascogne; CPUE; Flottille de pêche; Paramètres biologiques; Whiting; Pollack; Striped red mullet; Bay of Biscay; CPUE; Fishing fleet; Biological parameters. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00440/55126/56584.pdf |
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| Caill-milly, Nathalie; Lissardy, Muriel; Bru, Noelle; Dutertre, Marie-adèle; Saguet, Cassandre. |
| The striped red mullet (Mullus surmuletus) is a species for which ICES advances individualization of stocks in Western Europe. One of them concerns the Bay of Biscay, the waters bordering the Iberian Peninsula as well as the Celtic Sea, namely striped red mullet in Subareas and Divisions 6, 7a-c, e-k, 8, and 9a (Mur. 27.67a it-k89a). This stock is part of the Data Limited Stocks (DLS) and is currently classified in Category 5 (ICES, 2016); it is a stock for which only landings data are available. Such knowledge is insufficient to apply the ICES MSY approach and the advice rule on fishing possibilities is therefore based on the precautionary approach. For this stock, this approach is applied since 2012. For 2013 and 2014, ICES has recommended reducing... |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00466/57750/60015.pdf |
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