Revista De Biologia Marina Y Oceanografia最新文献

{"title":"Development and characterization of the first 16 microsatellites loci for Panulirus pascuensis (Decapoda: Palinuridae) from Easter Island using Next Generation Sequencing","authors":"E. Díaz-Cabrera, E. Meerhoff, N. Rojas-Hernández, C. Vega‐Retter, D. Véliz","doi":"10.4067/S0718-19572017000200018","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200018","url":null,"abstract":"The spiny lobster Panulirus pascuensis stands out among the endemic species of Easter Island, due to its cultural and economic importance. A total of 16 microsatellite loci were characterized in 18 individuals, 9 of which were polymorphic. The mean number of alleles per locus was 3.44 (2-6) and the observed heterozygosity ranged from 0.11 to 0.93. None of the loci exhibited significant linkage disequilibrium or departures from HWE. These new microsatellites will be used to obtain information about migration, population structure and genetic diversity of P. pascuensis in order to improve the future sustainable management and conservation plans.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44905915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bacterial assemblages associated with coral species of the Mexican Central Pacific","authors":"Joicye Hernández‐Zulueta, Leopoldo Díaz-Pérez, R. Araya, Ofelia Vargas-Ponce, A. Rodríguez-Troncoso, E. Ríos‐Jara, M. Ortiz, F. Rodríguez-Zaragoza","doi":"10.4067/S0718-19572017000200002","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200002","url":null,"abstract":"espanolEl papel funcional de las bacterias asociadas a corales y su contribucion a la salud del coral es aun desconocido en gran medida. Es necesario que primero se caracterice el ensamblaje microbiano del coral y sus cambios en la diversidad a traves de las especies de coral, el espacio y tiempo. Los corales ramificados (e.g., genero Pocillopora) son los principales constructores arrecifales a nivel mundial. Este estudio evaluo la estructura bacteriana asociada al mucus y tejidos de Pocillopora damicornis y Pocillopora verrucosa, asi como del agua de mar y sedimentos circundantes en 6 sitios del Pacifico central mexicano. Se emplearon las tecnicas DGGE y RFLP del ADNr 16S para generar los perfiles de bandeo o evaluar la diversidad. Ademas, se evaluo la relacion del ensamblaje bacteriano-coral con variables ambientales y espaciales del entorno arrecifal (de cada sitio), utilizando analisis multivariados. Se obtuvieron 20 Unidades Taxonomicas Operacionales (OTU) diferentes, siendo los sedimentos los que presentaron mayor numero. Se encontro una especificidad de grupos bacterianos para cada especie de coral, asi como entre el tejido y mucus de cada especie. Los resultados mostraron que los grupos de bacterias dominantes variaron entre sustratos y entre sitios, encontrando, solo una variacion espacial significativa. Las variables ambientales que explican la variacion de los grupos bacterianos dominantes en corales y agua de mar fueron las coberturas de macroalgas carnosas, coral vivo y esponja. En cambio, la variacion en los sedimentos fue explicada por las coberturas de arena, escombro y roca. EnglishThe functional role of coral-associated bacteria and their contribution to coral health is still largely unknown. The first necessary step to address this gap in the knowledge is based on characterization of the microbial assemblage of the coral and the species-specific, temporal and spatial variation in its diversity. Branched corals (e.g., genus Pocillopora), are the main builders of coral reefs worldwide. This study evaluated the bacteria associated with the mucus and tissues of Pocillopora damicornis and Pocillopora verrucosa, as well as that of the seawater and surrounding sediments, in 6 sites of the Mexican Central Pacific during summer and winter seasons. The molecular techniques DGGE and RFLP were used with the 16S rDNA to assess the most abundant bacterial OTUs. The relationships between the bacterial-coral assemblage and environmental and spatial variables of the reef surroundings were also evaluated, using the multivariate analyses. Twenty different Operational Taxonomic Units (OTU) were obtained, with the highest number presented by the sediments. Specificity of bacterial groups was found for each coral species, as well as between the tissue and mucus of each species. The results showed that the bacterial dominant groups were similar between seasons, but these showed significant spatial variations among substrates within sites, as well as ","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45342472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Las playas arenosas de Quintana Roo, México: La diversidad de su fauna intermareal","authors":"Alicia González, D. Torruco, Ángel D Torruco","doi":"10.4067/S0718-19572017000200015","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200015","url":null,"abstract":"espanolSe realizo una investigacion de campo de las comunidades de playas arenosas en 10 sitios al norte y sur del Estado de Quintana Roo, Mexico, en 2011. Para cada playa se realizaron 3 transectos perpendiculares a la costa con un numero variable de niveles dependiendo de la longitud de la playa. Las pendientes de las playas fueron tambien variables; sin embargo, como patron recurrente, la parte sur de cada playa fue mas extensa que la parte norte. La fauna mejor representada fue la de los moluscos (18 especies), aunque tambien se registraron otros grupos como: crustaceos (4), anelidos (4), sipunculidos (1), nemertinos (1), foraminiferos (4) e insectos (1). Los analisis numericos dividieron el litoral de la costa en sitios de la Rivera Maya que tuvieron mayor riqueza y diversidad de la fauna y en sitios de ubicados en la Gran Costa Maya que fueron los menos diversos. El ensamblaje que formaron los sitios a partir de los grupos principales muestran afinidades entre sitios cercanos, pero tambien permitio detectar diferencias entre zonas en una misma region. Utilizando un analisis divisivo del contenido de informacion de segundo orden, para los diferentes grupos, se obtuvo las especies responsables de la mayor caida de informacion; en los moluscos, fue Terebra tuberculosa, mientras que para los anelidos fue Scoloplos latum y para los foraminiferos Bigenerina angulata. Se propone un estudio a mayor plazo para este ecosistema. EnglishField research of macrofaunal communities of sandy beaches at 10 sites of the central and southern coast of Quintana Roo State, was performed in 2011. For each beach 3 transects were conducted perpendicular to the coast with a variable number of levels depending on the length of the beach. The slopes of the beaches were also variable; however, as a recurring pattern, the southern part of each beach was wider than the northern part. The best represented fauna were mollusks (18 species), but also other groups were recorded such as crustaceans (4), annelids (4), sipunculids (1), nemerteans (1), foraminifera (4) and insects (1). The numerical analysis divided the coast of the state in areas of the Maya Rivera, that were more diverse and richness in fauna, while the sites located in the Gran Costa Maya were the least diverse. The assemblage sites representing the major groups show affinities between nearby sites, but are able to detect differences between areas in the same region. Using a content analysis divisive second-order information, for different groups, the species responsible for most decrease of information was obtained; in mollusks, was Terebra tuberculosa, whereas annelids was Scoloplos latum and for foraminifera Bigenerina angulata. A long-term study is proposed for this ecosystem.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45314844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Factores asociados a la respuesta de Pocillopora spp. (Anthozoa: Scleractinia) durante un proceso de restauración en la costa del Pacífico mexicano","authors":"Daniela Muñiz-Anguiano, Manuel Gerardo Verduzco-Zapata, Marco A. Liñán-Cabello","doi":"10.4067/S0718-19572017000200009","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200009","url":null,"abstract":"espanolDurante un proceso de restauracion de Pocillopora spp., usando corales de oportunidad (CO), fueron evaluados diversos atributos bioticos en dos sitios a lo largo de un ano, de manera bimensual fueron determinadas las concentraciones de aminoacidos tipo micosporina (AAMs) y niveles de clorofila a (Cl a). De manera especifica, en el ultimo muestreo se realizo un analisis de malonaldehido (MDA) y se calcularon las relaciones ARN/ADN y proteina/ADN como indicadores de estres oxidativo y actividad trascripcional en simbionte y cnidario de todos los morfotipos. En sitio Carrizales (SC) la tecnica de restauracion de ramilletes coralinos (RC) promovio la integracion de COs registrando signos de recuperacion y altas tasas de supervivencia (90%); no obstante, en el Sitio Juluapan (SJ), se observo una falta de respuesta a los indicadores bioticos y moleculares asociados a la recuperacion. Por lo tanto, los CO provenientes de Carrizales no fueron capaces de aclimatarse a un sitio en el que imperan distintas condiciones ambientales. Altas concentraciones de Cl a, AAMs, y una alta relacion ARN/ADN fueron caracteristicas de una condicion saludable de corales, que a su vez, estuvieron asociados a los indicadores de restauracion y mejor supervivencia observada. EnglishDuring a restoration process of Pocillopora spp., using opportunity corals (CO) several biotic attributes were assessed at two sites bi-monthly over a year and concentrations of mycosporin type amino acids (MAAs) and levels of chlorophyll a (Chl a) were determined. Specifically, in the last sampling analysis it was performed an analysis of malonaldehyde (MDA) and the RNA/DNA and protein/DNA relationships were calculated, as an index of oxidative stress and transcriptional activity in symbiont and coral tissue of all morphotypes. At Carrizales site (SC) the coral clusters (RC) used as a method of restoration, promoted the integration of CO showing signs of recovery and high survival rates (90%); however, in Juluapan site (SJ), a lack of response to biotic and molecular indicators associated with recovery was observed. Therefore, CO from Carrizales were not able to acclimate to a place where different conditions prevail. High concentrations of Chl a, AAMs and a high RNA/DNA ratio were characteristic of a healthy condition of coral which in turn, were associated with higher specimen's survival and restoration.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44417362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Composición proximal y perfil de aminoácidos de estadios tempranos del pargo flamenco Lutjanus guttatus","authors":"M. I. Parra, G. A. R. D. Oca, L. E. Rodríguez-Ibarra, Patricia Domínguez-Jiménez, J. C. Román-Reyes, Gabriela Velasco-Blanco, Leonardo Ibarra-Castro","doi":"10.4067/S0718-19572017000200011","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200011","url":null,"abstract":"Los embriones y las larvas de los peces marinos utilizan los aminoacidos (AA) como fuente de energia para el metabolismo aerobico y para mantener la osmolalidad de los fluidos corporales durante los primeros estadios de desarrollo. El perfil de AA de los huevos y larvas puede utilizarse como un indicador aproximado del requerimiento de aminoacidos esenciales (AAE). Conocer la evolucion de la composicion bioquimica de los primeros estadios de las larvas de peces proporciona una fuente valiosa para comprender mejor las necesidades nutricionales para el comienzo de la alimentacion exogena; etapa donde se han reportado altas mortalidades por deficiencias nutricionales. El objetivo fue determinar la composicion quimica proximal y perfil de AA de huevos, larvas recien eclosionadas y larvas sin vitelo. Se tomaron muestras de los estadios mencionados y se determino su contenido bromatologico y perfil de AA utilizando metodos estandar. El porcentaje de proteina fue significativamente mayor en las larvas sin vitelo y el porcentaje de lipidos fue menor. El porcentaje de histidina, arginina y metionina fue mayor en los huevos y el resto de AAE fue mayor en las larvas sin vitelo. El porcentaje de taurina fue significativamente mayor en los huevos. Los datos obtenidos podran utilizarse como un indicador aproximado del requerimiento de AAE de las larvas de pargo flamenco al inicio de la alimentacion exogena y coadyuvar a mejorar los protocolos de alimentacion y al desarrollo de dietas balanceadas para mejorar el crecimiento y supervivencia de las larvas.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45322658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suitable habitat for marine mammals during austral summer in San Jorge Gulf, Argentina","authors":"M. Retana, M. Lewis","doi":"10.4067/S0718-19572017000200007","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200007","url":null,"abstract":"espanolEl Golfo San Jorge (GSJ) es una region oceanografica importante debido a la influencia de dos frentes de marea, siendo uno de los sectores mas productivos y con alta biodiversidad marina del Mar Argentino. El objetivo de este estudio fue identificar cuales variables oceanograficas explican la presencia de mamiferos marinos y explorar el solapamiento de la riqueza predicha con las areas frontales del GSJ durante el verano austral. La distribucion potencial de las 9 especies (Balaenoptera sp., Cephalorhynchus commersonii, Globicephala melas, Grampus griseus, Lagenorhynchus australis, L. obscurus, Mirounga leonina, Orcinus orca, Otaria flavescens) fue modelada con Maxent utilizando 6 variables ambientales (batimetria, pendiente del fondo marino, distancia a la costa, distancia al frente de marea, temperatura superficial y concentracion de clorofila). Los mamiferos marinos se encontraron mas cerca de las areas frontales que al azar (9,48 km y 13,34 km, respectivamente). La profundidad, la distancia a la costa y la pendiente fueron las variables mas importantes en la distribucion de todas las especies. Balaenoptera sp., G. melas, G. griseus, L. australis y O. orca mostraron una distribucion costera ( EnglishThe San Jorge Gulf (SJG) is an important oceanographic region due to the influence of two tidal fronts, being one of the most productive sectors and with greater marine biodiversity in the Argentine Sea. The aim of this study was to identify which oceanographic variables best explained the presence of marine mammals and to explore the overlap of the predicted richness with the frontal areas of the SJG during the austral summer. The potential distribution of 9 species (Balaenoptera sp., Cephalorhynchus commersonii, Globicephala melas, Grampus griseus, Lagenorhynchus australis, L. obscurus, Mirounga leonina, Orcinus orca, Otaria flavescens) was modeled with Maxent using 6 environmental variables (bathymetry, seafloor slope, distance to the coast, distance to the frontal area, sea surface temperature and chlorophyll a concentration). Marine mammals were found closer to the frontal area than expected by chance (9.48 km and 13.34 km, respectively). Bathymetry, distance to the coast and seafloor slope were the most important variables in the distribution of all the species. Balaenoptera sp., G. melas, G. griseus, L. australis and O. orca showed a coastal distribution (","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43158015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Asociaciones macrobentónicas con presencia de mitílidos de la bahía San Julián (Patagonia austral, Argentina)","authors":"H. Zaixso, A. Sar, Zulma I. Lizarralde, J. Martín","doi":"10.4067/S0718-19572017000200010","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200010","url":null,"abstract":"espanolLas asociaciones de macrobentos con presencia de mitilidos de la bahia San Julian (Patagonia austral, Argentina) fueron muestreadas durante el verano de 2007 para conocer su estructura, diversidad y distribucion, y para determinar su relacion con diversos factores ambientales. El estudio fue realizado en 3 localidades con diferentes tipos de sustrato y distinta pendiente. El muestreo en cada localidad se realizo en una transecta abarcando diferentes niveles del intermareal y del submareal somero. Se hallaron un total de 46 especies pertenecientes principalmente a moluscos (20), crustaceos (12) y poliquetos (10). Se identificaron 3 asociaciones principales: la asociacion Platynereis-Clunio-Darina se distribuyo en el nivel intermareal superior de sustrato fangoso y pendientes suaves y presento los valores mas bajos de numero de especies, de diversidad especifica y de abundancia de individuos; la asociacion Mytilus-Perumytilus se distribuyo en los niveles intermareales medio e inferior en sustrato rocoso o en sustrato fangoso con abundantes elementos de soporte y pendiente media; presento diversidad especifica intermedia y la mayor abundancia de individuos; la asociacion Aulacomya-Exosphaeroma presento el mayor numero de especies y la mayor diversidad, pero baja abundancia de individuos, encontrandose relacionado a sustratos rocosos o sustratos fangosos con elementos de soporte y baja pendiente del submareal superior. La riqueza especifica y la diversidad de estas asociaciones aumentan desde el nivel superior del intermareal hacia el submareal, posiblemente por efecto de un gradiente complejo de estres, principalmente ocasionado por la desecacion y exposicion a temperaturas extremas. EnglishThe macrobenthic assemblages with mytilids of San Julian bay (Southern Patagonia, Argentina) were sampled in summer 2007 to know its structure, diversity and distribution, and to determine their relationship to different environmental factors. The study was conducted in 3 locations with different types of substrate and slope. Sampling at each site was performed in a transect to cover different levels of intertidal and shallow subtidal. A total of 46 species belonging mainly to molluscs (20), crustaceans (12) and polychaetes (10) were found. Three main macrofaunal assemblages were identified. Platynereis-Clunio-Darina assemblage was distributed in the upper intertidal of muddy and gentle slopes substrate, and had the lowest values of number of species, diversity and abundance of individuals. The Mytilus-Perumytilus assemblage was distributed in the middle and lower intertidal levels in rocky substrate or muddy substrate with abundant support elements and medium slope. This assemblage presented intermediate values of diversity and greater abundance of individuals. The Aulacomya-Exosphaeroma assemblage had the highest number of species and the greatest diversity, but low abundance of individuals, being related to rocky substrate or muddy substrate with suppor","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42817646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulación de la deriva de larvas de langosta en aguas oceánicas adyacentes a la plataforma suroccidental de Cuba: Aplicación del modelo biofísico LADIM","authors":"Heriberto A. Martín, A. Betanzos-Vega, J. Simanca, R. Puga, Frode Vikebø, Jon Albertsen, Arturo Tripp-Quezada","doi":"10.4067/S0718-19572017000200008","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200008","url":null,"abstract":"espanolLa etapa larval pelagica de la langosta comun del Caribe Panulirus argus, transcurre durante 6-8 meses en aguas oceanicas alejadas de la plataforma. Predecir el reclutamiento larval e identificar las zonas de arribo y asentamiento, asi como evaluar la calidad de sus habitats naturales de cria, ha sido una necesidad permanente en los estudios y evaluaciones del recurso langosta. Este estudio tuvo como objetivo determinar el porcentaje potencial de auto reclutamiento de larvas de langosta a la plataforma suroccidental de Cuba, a partir de su modelacion. La simulacion, con el modelo numerico LADIM del Instituto de Investigaciones Marinas de Noruega, se inicio con particulas liberadas en marzo, mes de maximos de reproduccion y desove, completando un ciclo larval de unos 7 meses. Las particulas mostraron movimientos de dispersion, con periodos de retencion, en funcion de los diferentes mecanismos hidrodinamicos, culminando con un 33,8% de larvas auto-reclutadas a la plataforma suroccidental de Cuba. Las zonas de arribo y de mayor densidad de particulas, segun modelacion, coincidieron con las zonas que por estudios in situ han mostrado mayor asentamiento de puerulus y han sido clasificadas como criaderos naturales de post-larvas y juveniles; esto sugiere que la conectividad hidrodinamica oceano-plataforma, influye en el exito del reclutamiento y distribucion de las larvas de langosta, en estadio final, a la plataforma suroccidental de Cuba. EnglishThe pelagic larval stage of the common Caribbean lobster Panulirus argus, takes place during 6-8 months in ocean waters away of shelf. Predicting larval recruitment and identify the areas of arrival and settlement, and assess the quality of their breeding habitats, have been permanent necessity in studies of population dynamics of this fishery resource. The purpose of this work was to determine the potential percentage of self-recruitment larvae to the southwest Cuba shelf, and to identify the main areas of arrival or settlement of puerulus. The simulation, using particles released in a major period of spawning and larval recruitment, using the numerical model LADIM developed in the Institute of Marine Research in Norway. The percentage of self-recruited larvae was 33.8%. The zones of arrival and greater density of particles, according to modeling, coincided with the areas that by in situ studies have shown greater settlement of puerulus and have been classified as natural nurseries of post-larvae and juveniles. This suggests that hydrodynamics ocean-shelf connectivity in the southwest region of Cuba, it is decisive to the success of recruitment and distribution of lobster larvae, in the final stage.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45161322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Análisis de la pesca española en el Atlántico noreste 1980-2012: Papel de Galicia en la explotación de las principales especies marinas","authors":"S. Biton-Porsmoguer","doi":"10.4067/S0718-19572017000200021","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200021","url":null,"abstract":"The Spanish fishing fleet is one of the most important in the European Union and is exploiting marine resources in the FAO area 27 (North-eastern Atlantic Ocean). The Galician Region has a relevant role in the fishing industry. The number of boats decreased significantly between 1980 and 2012. But the landing quantities of the main marine species exploited (small pelagic fishes and tuna species mainly) decreased faster that the fleet during the same period. In contrast, landing quantities of Elasmobranchs (sharks and rays) and Cephalopods increased. This analysis shows the overexploitation of the Atlantic fishing grounds.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47836244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anatomía comparada del sistema digestivo de los lenguados Syacium papillosum y Syacium gunteri (Pleuronectiformes: Paralichthyidae)","authors":"Abraham Kobelkowsky, María Iraiz Rojas-Ruiz","doi":"10.4067/S0718-19572017000200006","DOIUrl":"https://doi.org/10.4067/S0718-19572017000200006","url":null,"abstract":"espanolCon el fin de conocer la organizacion anatomica del sistema digestivo de los lenguados Syacium papillosum y Syacium gunteri se analizaron ejemplares adultos de ambos sexos de las 2 especies. Mediante disecciones del esqueleto visceral, la musculatura visceral y el tubo digestivo se reconocio que la morfologia del sistema digestivo de las especies esta afectada por el extremo aplanamiento del cuerpo, la asimetria de la region cefalica y la reduccion del volumen de la cavidad visceral. El aplanamiento de la region cefalica implica un cierto grado de ampliacion en el sentido vertical del esqueleto y la musculatura viscerales. La asimetria fue mas marcada en las series palatinas de huesos, las mandibulas y en los musculos aductores mandibulares e intermandibular. La reduccion del tamano de la cavidad visceral debida a la extension hacia adelante de la aleta anal, implica la ubicacion del intestino posterior y del ano en una posicion adelantada. Los caracteres mas notables del tubo digestivo fueron el gran tamano del estomago, la presencia de 4 ciegos piloricos y de la valvula intestinal. El higado esta localizado en el lado izquierdo de la cavidad visceral. La agudeza de los dientes mandibulares y branquiales, el gran desarrollo de los musculos aductores mandibulares y retractores dorsales, el gran tamano del estomago y la relacion intestinal corresponden a especies de habitos carnivoros. Los caracteres anatomicos que diferencian el sistema digestivo de las 2 especies en estudio, son la presencia de un pequeno ciego estomacal, la mayor longitud del ciego pilorico inferior y 8 branquiespinas en la rama inferior del primer arco branquial en S. papillosum, y la ausencia del ciego estomacal, la menor longitud del ciego pilorico inferior y 7 branquiespinas en la rama inferior del primer arco branquial en S. gunteri. La comparacion del sistema digestivo de ambas especies con relacion a otros paralictidos y un botido, permite reconocer un mismo patron morfologico. El sistema digestivo de Achirus lineatus (Achiridae) difiere notablemente de los Paralichthyidae y Bothidae por el caracter extravisceral de 2 asas intestinales, mientras que el de Symphurus civitatium (Cynoglossidae) difiere por la presencia de la suspension del esofago desde 3 vertebras precaudales. EnglishIn order to understand the anatomical organization of the digestive system of the flounders Syacium papillosum and Syacium gunteri, adult specimens from both sexes for the two species were analysed. By means of dissections of the visceral skeleton, visceral musculature, and the digestive tract, the morphology of the digestive system of the species was found to be affected by the extreme flattening of the body, the asymmetry of the cephalic region, and the reduction in volume of the visceral cavity. The flattening of the cephalic region implies a certain degree of vertical expansion of the visceral skeleton and musculature. The asymmetry was more pronounced in the palatine bones series, ","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000200006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42926447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}