Spatio-temporal trends in diversity of demersal fish assemblages in the Mediterranean

Type Article
Date 2019-12
Language English
Author(s) Farriols M. Teresa1, Ordines Francesc2, Carbonara Pierluigi3, Casciaro Loredana4, Di Lorenzo Manfredi5, Esteban Antonio6, Follesa Cristina7, García-Ruiz Cristina8, Isajlovic Igor9, Jadaud Angelique10, Ligas Alessandro11, Manfredi Chiara12, Marceta Bojan13, Peristeraki Panagiota14, Vrgoc Nedo15, Massutí Enric16
Affiliation(s) 1 : Intituto Español de Oceanografía, Centre Oceanogràfic de les Balears, Spain
2 : Intituto Español de Oceanografía, Centre Oceanogràfic de les Balears, Spain
3 : COISPA Tecnologia and Ricerca, Stazione Sperimentale per lo Studio delle Risorse del Mare, Italy
4 : COISPA Tecnologia and Ricerca, Stazione Sperimentale per lo Studio delle Risorse del Mare, Italy
5 : CNR-IAMC, Italy
6 : Instituto Español de Oceanografía (IEO), Centro Oceanográfico de Murcia, Spain
7 : Dipartimento di Biologia Animale ed Ecologia, Università di Cagliari, Italy
8 : Instituto Español de Oceanografía (IEO), Centro Oceanográfico de Málaga, Spain
9 : Institute of Oceanography and Fisheries Split, Croatia
10 : Institut Français de Recherche pour l’Exploitation de la Mer (Ifremer), UMR 212 Ecosystèmes Marins Exploités (EME), Centre de Recherche halieutique Méditerranéenne et Tropicale, France
11 : Centro Interuniversitario di Biologia Marina ed Ecologia Applicata, Italy
12 : Laboratorio di Biologia Marina e Pesca di Fano, Dip.to B.E.S., Università di Bologna, Italy
13 : Fishery Research Institute of Slovenia, Slovenia
14 : Hellenic Center for Marine Research - University of Crete, Biology Department, Greece
15 : Institute of Oceanography and Fisheries, Croatia
16 : Intituto Español de Oceanografía, Centre Oceanogràfic de les Balears, Spain
Source Scientia Marina (0214-8358) (Departmento de Publicaciones del CSIC), 2019-12 , Vol. 83 , N. S1 , P. 189-206
DOI 10.3989/scimar.04977.13A
WOS© Times Cited 3
Note Mediterranean demersal resources and ecosystems: 25 years of MEDITS trawl surveys M.T. Spedicato, G. Tserpes, B. Mérigot and E. Massutí (eds)
Keyword(s) biodiversity, fish assemblages, MEDITS, bottom trawling, fishing effort, Mediterranean Sea
Abstract

The high species richness, coupled with high proportion of endemism, makes the Mediterranean one of the world’s ‘biodiversity hotspots’. However, the continuous increase in fisheries in the last few decades has led to the overexploitation of their main commercial stocks. Using fishery-independent data collected under the framework of the MEDITS trawl surveys carried out over the last 20 years, we study the demersal fish diversity pattern in the Mediterranean at a large spatial and temporal scale to determine whether it is being affected by the general fishing overexploitation of the demersal resources. The detected diversity trends are compared with the spatio-temporal variation in bottom trawl fishing effort in the Mediterranean. Our results show a stability and even recovery of demersal fish diversity in the Mediterranean together with higher diversity values on the continental shelves of the Balearic Islands, Sardinia, Sicily and the Aegean Sea. At large temporal and spatial scales, the high diversity of demersal assemblages in the Mediterranean is associated with a reduction in bottom trawl fishing effort. The inclusion of species other than target ones through diversity indices is important in the implementation of an ecosystem-based fisheries management.

Full Text
File Pages Size Access
Publisher's official version 18 3 MB Open access
Top of the page

How to cite 

Farriols M. Teresa, Ordines Francesc, Carbonara Pierluigi, Casciaro Loredana, Di Lorenzo Manfredi, Esteban Antonio, Follesa Cristina, García-Ruiz Cristina, Isajlovic Igor, Jadaud Angelique, Ligas Alessandro, Manfredi Chiara, Marceta Bojan, Peristeraki Panagiota, Vrgoc Nedo, Massutí Enric (2019). Spatio-temporal trends in diversity of demersal fish assemblages in the Mediterranean. Scientia Marina, 83(S1), 189-206. Publisher's official version : https://doi.org/10.3989/scimar.04977.13A , Open Access version : https://archimer.ifremer.fr/doc/00584/69628/