Morfología del la primera zoea del cangrejo Calappa granulata (Linnaeus, 1758) (Brachyura, Calappidae) obtenida en el laboratorio

The first zoeal stage of the calappid crab Calappa granulata is described and illustrated from laboratory-reared material obtained from an ovigerous female captured in the western Mediterranean. The morphology of this larval stage is clearly different from previous description from plankton-collected specimens attributed to this species. The present stage is compared with those previously described from other species of the genus Calappa.En el presente trabajo se describe el primer estadio larvario del cangrejo Calappa granulata. Las larvas se obtuvieron a partir de una hembra ovígera capturada en el Mediterráneo occidental. La morfología de la primera zoea es claramente diferente a la anterior descripción realizada a partir de ejemplares obtenidos en el plancton, y que fue atribuida a C. granulata. La primera zoea de esta especie es comparada con la de otras especies descritas del género Calappa

Biogeography of epibenthic crustaceans on the shelf and upper slope off the Iberian Peninsula Mediterranean coasts: implications for the establishment of natural management areas

Special Volume: Mediterranean marine demersal resources: the Medits international trawl survey (1994-1999)The patterns of occurrence and bathymetric distribution of epibenthic crustaceans on the continental shelf and upper slope down to a depth of 800 m are analysed based on data gathered during six demersal trawl surveys performed annually in spring along the Mediterranean coasts of the Iberian Peninsula (from the Straits of Gibraltar to Cape Creus) between 1994 and 1999. A total of 598 valid hauls has been studied providing a total of 108 species of decapods, two stomatopods, one euphausiid, one mysid and one isopod. The study area has been subdivided into seven sectors according to their geomorphological characteristics, and the patterns of occurrence and abundance by depth have been analysed separately for each of the sectors. Detailed data on bathymetric distribution are presented for each species. Two main biogeographical areas can be discerned along the study area, which can approximately be separated at Palos Cape: the Alborán Sea to the southwest, and the northwestern Mediterranean (Levantine and Catalan Seas) northwest of Palos Cape. The continental shelf in the Alborán Sea (the most western area of the Mediterranean) is extremely narrow whereas it is much wider in the northwestern Mediterranean. The influence of Atlantic waters entering the Mediterranean is particularly strong in the Alborán Sea which shows a particularly high species richness of Atlantic affinity. Within the context of the western Mediterranean Sea, the Alborán Sea region shows important faunistic characteristics such that it might be considered as a possible separate natural management area for demersal fisheriesVersión del editor1,006

Shape matters: relevance of carapace for brachyuran crab invaders

The increasing trend of biological invasions is one of the most concerning threats for ecosystems functioning. The identification of optimal characters determining the invasive potential of nonnative species has always been a challenge in conservation studies. Morphological features can be used as a good proxy to address the invasive success in fish species, assuming that anatomical differences in comparison to native species can provide to newcomers ecological opportunities increasing their probability to become successful. Considering this, the present study constitutes the first applicative attempt of a model based on geometric morphometrics to demonstrate the importance of the carapace shape in the invasive ability in marine decapod crustaceans. The study was performed on the native brachyuran community of Alfacs Bay, in the Ebro Delta, the largest estuarine zone along the north-western Mediterranean, in which two recently established non-native crab species coexist: Dyspanopeus sayi and Callinectes sapidus. Results suggested that invaders with extreme carapace traits located peripherally in the community morphospace, such as C. sapidus, usually possess ecological advantages contributing to understand their success. Conversely, intermediate morphologies within the morphospace, such as D. sayi, imply ecological overlapping with native species reducing their community relevance. Besides, we also assessed the effect on the community morphospace of a hypothetical future invasive event from another crab species (Portunus segnis) with high probabilities to also colonize the community. Our outcomes confirm that the morphometric approach could be an alternative tool for assessing the potential ability of invasive crab species. However, further studies at different spatial and temporal scales, including additional traits and quantitative data from invasions, would be necessary to confirm the efficacy and usefulness of the methodology.Postprint2,89

Fish associated with floating drifting objects as a feeding resource for Balearic Shearwaters Puffinus mauretanicus during the breeding season

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Demersal assemblages on the soft bottoms off the Catalan-Levante coast of the Spanish Mediterranean

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CONNECTIVITY BETWEEN POPULATIONS OF THE MARINE CRAB LIOCARCINUS DEPURATOR IN THE ATLANTO-MEDITERRANEAN TRANSITION: A FIVE YEAR SERIES

Abstract: We carried out a spatial and temporal genetic differentiation analysis using seven populations of the marine crab Liocarcinus depurator to elucidate the effect of three oceanographic discontinuities in the Atlanto-Mediterranean coast: Gibraltar Strait, Almeria-Oran Front and Ibiza Channel. To conduct this study, a 527 bp fragment of the mitochondrial COI gene was sequenced in individuals captured in the period 2014-2018 from the following Iberian coast populations: Cádiz, West Alboran, East Alboran, Alacant, Valencia, Ebro Delta and North Catalonia. Two haplogroups were detected; one characteristic of Atlantic waters and the other of Mediterranean. Their differential distribution allowed understanding the connectivity between populations. The effect of the oceanographic fronts on gene flow varied over time. Their effects were significant for the Gibraltar Strait (2014 and 2017), Almeria Oran Front (2013, 2014, 2015, 2016 and 2017) and Ibiza Channel (2015). Interestingly, the joint analysis of West Alboran, East Alboran and Alacant populations allowed a more precise detection of the location of the Almeria Oran Front biological effects. Finally, significant differences were observed in connectivity between Valencia and Ebro Delta in 2015, although there is not an oceanographic discontinuity between them. The main conclusion is that the gene flow is mediated by oceanographic fronts, but their intensity and effects change over time.CTM2017-88080 AEI/FEDER, UE) (CTM2015-66400-C3-3-R MINECO/FEDER) (2017 SGR 1120)

Programa de rehabilitación cardíaca mediante un entrenamiento de tenis adaptado

The aims of this study were to determine the effect of a cardiac rehabilitation program, based on the adjustment of a sports modality (tennis), on differentes laboratory analysis variables (triglycerides, cholesterol,cholesterol LDL, cholesterol HDL and glucose ) And and on an exercise stress test (metabolics equivalent-METs-, time of effort, systolic pressure, dyastolic pressure, maximum cardiac frecuencia and double product). The study involved 7 patients with low risk myocardial heart attack. The ages was include between 48 and 63 years old. By the end of the program, which has lasted 3 months, triglycerides, cholesterol, exercise capacity and double product had improved significantly (p<.005 for all).Los objetivos de este estudio son evaluar los efectos de nuestro programa de rehabilitación cardiaca, basado en la adaptación de una modalidad deportiva (tenis), sobre diferentes variables del perfil lipídico (triglicéridos, colesterol, cLDL, cHDL, y glucosa) así como en la prueba de esfuerzo (MET, tiempo de esfuerzo, presión sistólica, presión diastólica, frecuencia cardíaca máxima y doble producto). Analizamos a 7 pacientes con infarto agudo de miocardio de bajo riesgo. Las edades estaban comprendidas entre los 48 y 63 años. Tras la realización del programa, que ha tenido 3 meses de duración, se han producido mejoras significativas a nivel de triglicéridos, colesterol, capacidad funcional valorada en equivalentes metabólicos y doble producto (p<.005 para todos)

Isolation and characterization of microsatellite markers in the portunid crab Liocarcinus depurator using FIASCO and 454 next-generation sequencing

The portunid crab Liocarcinus depurator is the dominant decapod crustacean present on mud bottoms of the continental shelf of the Mediterranean Sea. In order to better describe its genetic structure, a total of 11 microsatellites were isolated and tested in 28 L. depurator individuals from the Mediterranean locality of Tarragona. Initially, microsatellite isolation was carried out using the FIASCO methodology, but only 2 useful primer pairs could be designed. Given the low yield obtained, an alternative method based on 454 next-generation sequencing was assayed, which provided excellent results and from which another 9 primer pairs gave positive genotyping. All loci tested were polymorphic, and 2 to 24 (mean 10.54) alleles per locus were identified. The observed and expected heterozygosities per locus ranged from 0.214 to 0.926 and from 0.232 to 0.962, respectively. One locus (Ldep10) showed the presence of null alleles according to the Brookfield estimator implemented in MICROCHECKER. Nevertheless, none of the markers deviated significantly from Hardy–Weinberg equilibrium or showed evidence of linkage disequilibrium. This set of 11 markers is being used to study the population structure and genetic diversity of Liocarcinus depurator populations from both Mediterranean and adjacent Atlantic waters.The portunid crab Liocarcinus depurator is the dominant decapod crustacean present on mud bottoms of the continental shelf of the Mediterranean Sea. In order to better describe its genetic structure, a total of 11 microsatellites were isolated and tested in 28 L. depurator individuals from the Mediterranean locality of Tarragona. Initially, microsatellite isolation was carried out using the FIASCO methodology, but only 2 useful primer pairs could be designed. Given the low yield obtained, an alternative method based on 454 next-generation sequencing was assayed, which provided excellent results and from which another 9 primer pairs gave positive genotyping. All loci tested were polymorphic, and 2 to 24 (mean 10.54) alleles per locus were identified. The observed and expected heterozygosities per locus ranged from 0.214 to 0.926 and from 0.232 to 0.962, respectively. One locus (Ldep10) showed the presence of null alleles according to the Brookfield estimator implemented in MICROCHECKER. Nevertheless, none of the markers deviated significantly from Hardy–Weinberg equilibrium or showed evidence of linkage disequilibrium. This set of 11 markers is being used to study the population structure and genetic diversity of Liocarcinus depurator populations from both Mediterranean and adjacent Atlantic waters