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were identified, using multivariate techniques, in the fishery: Red mullet, European hake, Norway lobster 58 and Red shrimp. The mean catch composition within the same métier was similar between ports, although 59 the relative importance of species differed slightly from one port to another. Variation in fishing effort 60 exerted was observed between métiers reflecting differences in the importance and usage of each métier 61 by port. Temporal variations were found among different métiers at seasonal and annual scales. These 62 temporal variations showed that métiers Red mullet and European hake were alternated. Positive 63 significant correlations were observed between landings and different fishing effort variables with an 64 exception of the relation between landings and engine power in the Norway lobster métier with negative 65 significant correlations. Significant differences in total vessel length, gross tonnage, total CPUE and total 66 income were detected among the four métiers depending on each port with few exceptions. These 67 findings are considered a keystone for more practical implications and to assist fisheries' managers in the 68 decision-making process. As demonstrated in the current paper, the management of multi-specific 69 fisheries should start off considering the characteristics of each métier separately. In the sound of métier-70 based management, the patterns observed in the effort temporal distribution between métiers can indicate 71 the most suitable time to reduce effort on specific target species. 72 73

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27 28In input-controlled multi-specific fisheries, seasonal closure has little biological rationale as a 29 management measure, because it is difficult to adjust such closure for many target species and, in most 30 cases, they are adopted for economic purposes. We aimed to determine effects of closure in biologic and 31 economic terms, using 10-year landing data from two representative trawling ports of the Western 32Mediterranean: Dénia and La Vila Joiosa. Analysis of Variance (ANOVA) was used to detect significant 33 differences, before and after the closure, in standardized catch per unit effort (CPUE) at different seasons 34and sale prices at home/closed and neighbour/open ports. ANOVAs showed significantly higher CPUE 35 after the closure for total landings and Mullus spp. of the Red mullet métier, M. merluccius CPUE (in two 36 years) and the total landings of the Norway lobster métier. On the contrary, significant lower values were 37 observed after the closure for total CPUE (in early summer) and A. antennatus of Red shrimp métier. 38

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