FN Archimer Export Format
PT J
TI Environmentally driven synchronies of Mediterranean cephalopod populations
BT 
AF KELLER, Stefanie
   QUETGLAS, Antoni
   PUERTA, Patricia
   BITETTO, Isabella
   CASCIARO, Loredana
   CUCCU, Danila
   ESTEBAN, Antonio
   GARCIA, Cristina
   GAROFALO, Germana
   GUIJARRO, Beatriz
   JOSEPHIDES, Marios
   JADAUD, Angelique
   LEFKADITOU, Evgenia
   MAIORANO, Porzia
   MANFREDI, Chiara
   MARCETA, Bojan
   MICALLEF, Reno
   PERISTERAKI, Panagiota
   RELINI, Giulio
   SARTOR, Paolo
   SPEDICATO, Maria Teresa
   TSERPES, George
   HIDALGO, Manuel
AS 1:1;2:1;3:1;4:2;5:2;6:3;7:4;8:5;9:6;10:1;11:7;12:8;13:9;14:10;15:11;16:12;17:13;18:14,18;19:15,16;20:17;21:2;22:14;23:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:PDG-RBE-MARBEC-LHM;13:;14:;15:;16:;17:;18:;19:;20:;21:;22:;23:;
C1 Inst Espanol Oceanog, Ctr Oceanog Baleares, Muelle de Poniente S-N,Apdo 291, Palma De Mallorca 07015, Spain.
   COISPA Tecnol & Ric, Stn Sperimentale Studio Risorse Mare, Bari, Italy.
   Univ Cagliari, Dipartemento Sci Vita & Ambiente, Cagliari, Italy.
   IEO, Ctr Oceanog Murcia, Murcia, Spain.
   IEO, Ctr Oceanog Malaga, Malaga, Spain.
   CNR, IAMC, Coastal Marine Environm Insitute, Mazara Del Vallo, TP, Italy.
   Minist Agr Rural Dev & Environm, DFMR, Nicosia, Cyprus.
   IFREMER, UMR Ecosyst Marins Exploites EME 212, Sete, France.
   Hellen Ctr Marine Res, Athens, Greece.
   Univ Bari Aldo Moro, Dept Biol, Bari, Italy.
   Univ Bologna, Lab Biol Marina & Pesca, Fano, PS, Italy.
   Fishery Res Inst Slovenia, Ljubljana, Slovenia.
   Minist Sustainable Dev, Dept Fisheries & Aquaculture, Marsa, Malta.
   Hellen Ctr Marine Res, Iraklion, Crete, Greece.
   Soc Italiana Biol Marina, Genoa, Italy.
   Univ Genoa, DISTAV, Genoa, Italy.
   CIBM Ctr Interuniv Biol Marina & Ecol Applicata, Livorno, Italy.
   Univ Crete, Biol Dept, Iraklion, Crete, Greece.
C2 IEO, SPAIN
   COISPA TECNOL & RIC, ITALY
   UNIV CAGLIARI, ITALY
   IEO, SPAIN
   IEO, SPAIN
   IAMC CNR, ITALY
   MINIST AGR RURAL DEV & ENVIRONM, CYPRUS
   IFREMER, FRANCE
   HELLEN CTR MARINE RES, GREECE
   UNIV BARI ALDO MORO, ITALY
   UNIV BOLOGNA, ITALY
   FISHERY RES INST SLOVENIA, SLOVENIA
   MINIST SUSTAINABLE DEV, MALTA
   HELLEN CTR MARINE RES, GREECE
   SOC ITALIANA BIOL MARINA, ITALY
   UNIV GENOA, ITALY
   CIBM, ITALY
   UNIV CRETE, GREECE
SI SETE
SE PDG-RBE-MARBEC-LHM
UM MARBEC
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 4.27
TC 15
UR https://archimer.ifremer.fr/doc/00371/48207/48320.pdf
LA English
DT Article
CR MEDITS
DE ;Cephalopods;Mediterranean;MEDITS;Dynamic factor analysis;Synchrony;Octopus vulgaris;Illex coindetii
AB The Mediterranean Sea is characterized by large scale gradients of temperature, productivity and salinity, in addition to pronounced mesoscale differences. Such a heterogeneous system is expected to shape the population dynamics of marine species. On the other hand, prevailing environmental and climatic conditions at whole basin scale may force spatially distant populations to fluctuate in synchrony. Cephalopods are excellent case studies to test these hypotheses owing to their high sensitivity to environmental conditions. Data of two cephalopod species with contrasting life histories (benthic octopus vs nectobenthic squid), obtained from scientific surveys carried out throughout the Mediterranean during the last 20 years were analyzed. The objectives of this study and the methods used to achieve them (in parentheses) were: i) to investigate synchronies in spatially separated populations (decorrelation analysis); ii) detect underlying common abundance trends over distant regions (dynamic factor analysis, DFA); and iii) analyse putative influences of key environmental drivers such as productivity and sea surface temperature on the population dynamics at regional scale (general linear models, GLM). In accordance with their contrasting spatial mobility, the distance from where synchrony could no longer be detected (decorrelation scale) was higher in squid than in octopus (349 vs 217 km); for comparison, the maximum distance between locations was 2620 km. The DFA revealed a general increasing trend in the abundance of both species in most areas, which agrees with the already reported worldwide proliferation of cephalopods. DFA results also showed that population dynamics are more similar in the eastern than in the western Mediterranean basin. According to the GLM models, cephalopod populations were negatively affected by productivity, which would be explained by an increase of competition and predation by fishes. While warmer years coincided with declining octopus numbers, areas of high sea surface temperature showed higher densities of squid. Our results are relevant for regional fisheries management and demonstrate that the regionalisation objectives envisaged under the new Common Fishery Policy may not be adequate for Mediterranean cephalopod stocks.
PY 2017
PD MAR
SO Progress In Oceanography
SN 0079-6611
PU Pergamon-elsevier Science Ltd
VL 152
UT 000400202100001
BP 1
EP 14
DI 10.1016/j.pocean.2016.12.010
ID 48207
ER

EF