Habitat Suitability Modeling to Identify the Potential Nursery Grounds of the Atlantic Mackerel and Its Relation to Oceanographic Conditions in the Mediterranean Sea

Type Article
Date 2017
Language English
Author(s) Giannoulaki Marianna1, Pyrounaki Maria M.1, Bourdeix Jean-Herve2, Ben Abdallah Lotfi3, Bonanno Angelo4, Basilone Gualtiero4, Iglesias Magdalena5, Ventero Ana5, de Felice Andrea6, Leonori Iole6, Valavanis Vasilis D.1, Machias Athanassios1, Saraux Claire2
Affiliation(s) 1 : Hellenic Centre for Marine Research, Institute of Marine Biological Resources and Inland Waters, Iraklion, Greece
2 : IFREMER, Sete, France
3 : Institut National des Sciences et Technologies de la Mer, La Goulette, Centre de la Goulette, Port de Pêche la Goulette, La Goulette, Tunisia
4 : Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Campobello di Mazara, Italy
5 : Instituto Espanol de Oceanografia, Centro Oceanografico de Baleares, Palma de Mallorca, Spain
6 : Istituto di Scienze Marine, Consiglio Nazionale delle Ricerche, Ancona, Italy
Source Frontiers In Marine Science (2296-7745) (Frontiers Media SA), 2017 , Vol. 4 , N. 230 , P. 13p.
DOI 10.3389/fmars.2017.00230
WOS© Times Cited 6
Keyword(s) habitat suitability modeling, Atlantic mackerel, nursery grounds, Mediterranean Sea, generalized additive models, acoustic surveys
Abstract

Our knowledge for the distribution of Atlantic mackerel (Scomber scombrus) in the Mediterranean Sea is limited and fragmented. In the current work habitat suitability modeling was applied to summer acoustic surveys data of Atlantic mackerel juveniles derived from the north part of the Mediterranean (i.e., acoustic data from the Gulf of Lions, pelagic trawls held during acoustic surveys in Spanish Mediterranean waters, south Adriatic Sea, Strait of Sicily, and North Aegean Sea) using generalized additive models (GAMs) along with satellite environmental and bathymetry data. Bathymetry along with sea surface temperature and circulation patterns, expressed through sea level anomaly and the zonal component of the absolute geostrophic velocity, were the environmental variables best to describe nursery grounds. The selected model was used to produce maps presenting the potential nursery grounds of Atlantic mackerel throughout the Mediterranean Sea as a measure of habitat adequacy. However, the assessed potential nursery grounds were generally marked as “occasional,” implying that although there are areas presenting high probability to encounter Atlantic mackerel, this picture can largely vary from year to year stressing the high susceptibility of the species to environmental conditions. In a further step and toward a spatial management perspective, we have estimated and visualized the overlap between Atlantic mackerel and anchovy/ sardine juvenile grounds throughout the basin. Results showed that although the degree of overlapping was generally low, not exceeding 15% in general, this varied at a regional level going up to 30%. The potential of the output of this work for management purposes like the implementation of spatially-explicit management tools is discussed.

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Giannoulaki Marianna, Pyrounaki Maria M., Bourdeix Jean-Herve, Ben Abdallah Lotfi, Bonanno Angelo, Basilone Gualtiero, Iglesias Magdalena, Ventero Ana, de Felice Andrea, Leonori Iole, Valavanis Vasilis D., Machias Athanassios, Saraux Claire (2017). Habitat Suitability Modeling to Identify the Potential Nursery Grounds of the Atlantic Mackerel and Its Relation to Oceanographic Conditions in the Mediterranean Sea. Frontiers In Marine Science, 4(230), 13p. Publisher's official version : https://doi.org/10.3389/fmars.2017.00230 , Open Access version : https://archimer.ifremer.fr/doc/00395/50657/