Stability of the relationships among demersal fish assemblages and environmental-trawling drivers at large spatio-temporal scales in the northern Mediterranean Sea

Type Article
Date 2019-12
Language English
Author(s) Mérigot Bastien1, Gaertner Jean-Claude2, Brind’amour Anik3, Carbonara Pierluigi4, Esteban Antonio5, Garcia-Ruiz Cristina6, Gristina Michele7, Imzilen Taha8, Jadaud Angelique9, Joksimovic Aleksandar10, Kavadas Stefanos11, Kolitari Jerina12, Maina Irida13, Maiorano Porzia14, Manfredi Chiara15, Micallef Reno16, Peristeraki Panagiota17, Relini Giulio18, Sbrana Mario19, Spedicato Maria Teresa20, Thasitis Ioannis21, Vittori Stefania22, Vrgoc Nedo23
Affiliation(s) 1 : MARBEC - Université de Montpellier, CNRS, France
2 : Institut de Recherche pour le Développement (IRD), UMR 241 Ecosystèmes Insulaire Océanique (EIO), Université de Polynésie française, French Polynesia
3 : Institut Français de Recherche pour l’Exploitation de la Mer (Ifremer), Département Ecologie et Modèles pour l’Halieutique (EMH), France
4 : COISPA Tecnologia e Ricerca, Stazione Sperimentale per lo Studio delle Risorse del Mare, Italy
5 : Instituto Español de Oceanografía (IEO), Centro Oceanográfico de Murcia, Spain
6 : Instituto Español de Oceanografía (IEO), Centro Oceanográfico de Málaga, Spain
7 : Institute of Anthropic Impacts and Sustainability in marine environment (CNR), Italy
8 : MARBEC - Université de Montpellier, CNRS, France
9 : MARBEC - Université de Montpellier, CNRS, France
10 : Institute of Marine Biology, University of Montenegro, Montenegro
11 : Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, Greece
12 : Aquaculture and Fishery Laboratory Durres, Agricultural University, Albania
13 : Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, Greece
14 : Porzia Maiorano Department of Biology, University of Bari Aldo Moro, Italy
15 : Laboratorio di Biologia Marina e Pesca di Fano, Dipto. B.E.S., Università di Bologna, Italy
16 : Department of Fisheries and Aquaculture, Ministry for Sustainable Development, the Environment and Climate Change (MSDEC), Malta
17 : Institute of Marine Biological Resources and Inland Waters, Hellenic Center for Marine Research - University of Crete, Biology Department, Greece
18 : Dipartimento di Scienze della Terra, dell’Ambiente e della Vita (DISTAV), Italy
19 : Consorzio per il Centro Interuniversitario di Biologia Marina ed Ecologia Applicata, Italy
20 : COISPA Tecnologia e Ricerca, Stazione Sperimentale per lo Studio delle Risorse del Mare, Italy
21 : Department of Fisheries and Marine Research, Ministry of Agriculture, Natural Resources and Environment, Cyprus
22 : Dipartimento di Scienze della vita e dell’ambiente, Università di Cagliari, Italy
23 : Institute of Oceanography and Fisheries, Croatia
Source Scientia Marina (0214-8358) (Departmento de Publicaciones del CSIC), 2019-12 , Vol. 83 , N. S1 , P. 153-163
DOI 10.3989/scimar.04954.30A
WOS© Times Cited 1
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) species composition, stability, demersal assemblages, environment, fishing pressure, large scale, co-inertia analysis, STATICO-CoA
Abstract

Trawling pressure and environmental changes may affect the composition of fish assemblages. Our knowledge on large spatio-temporal patterns of demersal fish composition remains incomplete for the Mediterranean Sea. We investigated (1) the spatio-temporal stability of demersal assemblages, (2) the relationships between these assemblages and potential structuring factors (trawling pressure and environmental conditions) in order to assess the dynamic of the assemblage structure at the scale of the northern Mediterranean Sea. We analysed a dataset of 18062 hauls from 10 to 800 m depth performed annually during the last two decades across 17 Geographical Sub-Areas (GSAs) (MEDITS program). A multi-table analysis (STATICO-CoA) evidenced a strong inter-GSAs stability in the organization of assemblages, with specificities for some GSAs. The most stable structuring factors were linked to combined gradients of chlorophyll a, phytoplancton carbon biomass and temperature, inversely correlated with depth, salinity and nutrient gradients (axis 1 of the STATICO-CoA compromise, 93.74% of the total variability). A common pattern linking the distribution of species to these environmental gradients was evidenced for most of the 17 GSAs. Estimate of trawling pressure showed a minor role in the organization of the assemblages for the spatial scale and years investigated (axis 2, 4.67%).

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Mérigot Bastien, Gaertner Jean-Claude, Brind’amour Anik, Carbonara Pierluigi, Esteban Antonio, Garcia-Ruiz Cristina, Gristina Michele, Imzilen Taha, Jadaud Angelique, Joksimovic Aleksandar, Kavadas Stefanos, Kolitari Jerina, Maina Irida, Maiorano Porzia, Manfredi Chiara, Micallef Reno, Peristeraki Panagiota, Relini Giulio, Sbrana Mario, Spedicato Maria Teresa, Thasitis Ioannis, Vittori Stefania, Vrgoc Nedo (2019). Stability of the relationships among demersal fish assemblages and environmental-trawling drivers at large spatio-temporal scales in the northern Mediterranean Sea. Scientia Marina, 83(S1), 153-163. Publisher's official version : https://doi.org/10.3989/scimar.04954.30A , Open Access version : https://archimer.ifremer.fr/doc/00584/69629/