Nuevos registros de escafópodos para las costas de Jalisco y Colima, México

The distribution of two species of scaphopods is extended south to the coast of Jalisco and Colima, México. Samples were taken with a Van Veen grab at depths between 41 and 75 m in medium sand, sandy silt and silty clay substrates. These species are: 1) Dentalium neohexagonum Sharp and Pilsbry, 1897, previouslyreported from Monterey Bay, California to Tiburón Island in the Gulf of California at depths of 7-256 m; it was collected in Jalisco at 72-75 m in sandy silt and silty clay; 2) Gadila fusiformis Pilsbry and Sharp,1898, recorded in Monterey, California, in San Carlos, Sonora and in Cabo San Lucas and the Gulf of California at depths of 7-365 m; it was collected in Colima and Jalisco, at 41 and 73 m in medium sand and silty clay substrata, respectively. The vertical distribution of another scaphopod species is also extended: Cadulus albicomatus Dall, 1890, previously registered between 733 and 3-050 m, it was collected in three localities at depths of 41, 48 and 73 m. The abundance and the frequency of occurrence of these species in the sampling stations is presented.Se informa sobre la ampliación del ámbito de distribución sur de dos especies de escafópodos hasta las costas de Jalisco y Colima, México. Las muestras fueron obtenidas con una draga Van Veen a profundidades entre 41 y 75 m en sustratos de tipo arena media, limo arenoso y limo arcilloso. Estas especies son: 1) Dentalium neohexagonum Sharp y Pilsbry, 1897, anteriormente con límites de distribución desde Bahía Monterey, California hasta Isla Tiburón, Golfo de California a profundidades de 7-256 m; se recolectó en tres localidades de la costa de Jalisco a profundidades de 72- 75 m en sustratos limo arenoso y limo arcilloso; 2) Gadila fusiformis Pilsbry y Sharp, 1898, antes registrada en Monterey, California, enSan Carlos, Sonora y en Cabo San Lucas y el Golfo de California a profundidades de 7-365 m; se recolectó en dos localidades de Colima y Jalisco, a profundidades de 41 y 73 m en sustratos de arena media y limo arcilloso, respectivamente. Además, se amplía la distribución vertical de Cadulus albicomatus Dall, 1890, anteriormente registrada entre los 733-3050 m, fue recolectada en tres localidades a 41, 48 y 73 m de profundidad. Se presentan valores de abundancia y frecuencia relativa en las estaciones para todas estas especies

Establecimiento de ensayos para modelación de fríjol en el TeSAC del Cauca, Colombia

Las intervenciones y monitoreo de sistemas de producción de fríjol del TeSAC en el departamento del Cauca, Colombia, en comunidades intervenidas con Servicios Participativos de Clima para la Agricultura (PICSA) dan luces sobre las decisiones de manejo derivadas del análisis de la variabilidad climática histórica y pronosticada en el territorio. En este contexto, se llevó a cabo un ensayo de fríjol con las variedades Calima, SAB686 y la variedad bioforticada BIO101 entre noviembre de 2019 y febrero de 2020 en la finca Altobonito, en el departamento de Cauca. Se evaluó información sobre crecimiento y desarrollo del cultivo necesaria para la ejecución del modelo de cultivo CROPGRO-Dry Bean frente a las condiciones ambientales y de manejo agronómico dadas. Los resultados obtenidos muestran que el crecimiento y desarrollo de las variedades de frijol en el ensayo tuvieron una respuesta satisfactoria. Los resultados del modelo CROPGRO-Dry para la variedad Calima presentó un mejor ajuste para las variables de peso seco de la planta CWAD (kg/ha); peso seco de hojas, LWAD kg/ha); peso seco de vainas, PWAD (kg/ha) y para el rendimiento GWAD (kg/ha). Las variables: índice de área foliar LAID y peso de los tallos SWAD no presentaron un buen ajuste. Para la variedad SAB686 las variables que presentaron un buen ajuste fueron peso seco de la planta, CWAD (kg/ha), peso seco de vainas, PWAD (kg/ha), peso seco de hojas, LWAD kg/ha) y SWAD, peso seco de tallos, SWAD (kg/ha) presentaron un buen ajuste

Case-Control Analysis of the Impact of Anemia on Quality of Life in Patients with Cancer: A Qca Study Analysis

Anemia is a common condition in cancer patients and is associated with a wide variety of symptoms that impair quality of life (QoL). However, exactly how anemia affects QoL in cancer patients is unclear because of the inconsistencies in its definition in previous reports. We aimed to examine the clinical impact of anemia on the QoL of cancer patients using specific questionnaires. We performed a post-hoc analysis of a multicenter, prospective, case-control study. We included patients with cancer with (cases) or without (controls) anemia. Participants completed the European Organization for Research and Treatment of Cancer Quality of Life questionnaire version 3.0 (EORTC QLQ-C30) and Euro QoL 5-dimension 3-level (EQ–5D–3L) questionnaire. Statistically significant and clinically relevant differences in the global health status were examined. From 2015 to 2018, 365 patients were included (90 cases and 275 controls). We found minimally important differences in global health status according to the EORTC QLQ-C30 questionnaire (case vs. controls: 45.6 vs. 58%, respectively; mean difference: −12.4, p < 0.001). Regarding symptoms, cancer patients with anemia had more pronounced symptoms in six out of nine scales in comparison with those without anemia. In conclusion, cancer patients with anemia had a worse QoL both clinically and statistically

Validação e fidelidade do dispositivo Haefni Health HHe 1.0 na medição da velocidade e da amplitude isocinética

Cuando se realizan valoraciones de cualquier protocolo de evaluación uno de los aspectos fundamentales es conocer la validez y fiabilidad de los dispositivos utilizados. El objetivo del presente trabajo fue analizar la validez y fiabilidad de la variable de velocidad en el rango isocinético (VRI) en el dispositivo Haefni Health (HHe 1.0). Un total de dos protocolo se diseñaron para el análisis de la validez y fiabilidad. Los resultados mostraron altos Índices de Correlación Intraclase (ICC 2,1) para las medidas de validez y fiabilidad del dispositivo (0,998 y 0,99, respectivamente). Cuando se analizó la fiabilidad de las medidas por cada una de las condiciones de evaluación altos ICC 2,1, además de bajos CV y SEM fueron encontraros (rango 0,71–0,99, rango 0,19–3,73 y rango 0,001–0,004 m·s-1, respectivamente). Los resultados obtenidos avalan la validez y fiabilidad del dispositivo Haefni Health HHe 1.0 para la medición de la variable de VRI tanto para la fase concéntrica como para la fase excéntrica del movimiento.When rating any assessment protocol one of the key issues is to determine the validity and reliability of the devices used. The aim of this study was to analyze the validity and reliability of the variable velocity isokinetic range (VRI) in Haefni Health System (HHe 1.0). Two assessment protocols were design to test bot, validity and reliability. The results showed high Index of Intraclass Correlation (ICC2,1) for measures of validity and reliability of the VRI (0,998 and 0,99, respectively). Moreover, when the reliability was assessed at each criterion velocity high values of ICC2,1, range 0,71–0,99 and low CV and SEM, range 0,19–3,73% and range 0.001– 0.004 m·s-1, were found respectively. The results obtained confirm the validity and reliability of HHe1.0 device for measuring VRI variable.Quando se realizam apreciações de qualquer protocolo de avaliação um dos aspectos fundamentais é conhecer a validade e fidelidade dos dispositivos utilizados. O objectivo do presente trabalho foi analisar a validade e fidelidade da variável de velocidade na amplitude isocinética (VRI) no dispositivo Haefni Health HHe 1.0. Um total de dois protocolos foram delineados para a análise da validade e fidelidade. Os resultados mostraram elevados Índices de Correlação Intraclasse (ICC2,1) para as medidas de validade e fidelidade do dispositivo (0,998 e 0,99, respectivamente). Adicionalmente, quando se analisou a fidelidade das medidas por critério de altos ICC2,1 e baixos CV e SEM foram identificados (amplitude 0,71–0,99, amplitude 0,19–3,73 e amplitude 0,001–0,004 m·s-1, respectivamente). Os resultados obtidos confirmam a validade e fidelidade do dispositivo Haefni Health HHe1.0 para a medição da variável de VRI, tanto para a fase concêntrica, como para a fase excêntrica do movimento

Análisis multiescala de las comunidades de coral hermatípico del Pacífico Central Mexicano

The Mexican Central Pacific is located in a zone of oceanographic transition between two biogeographic provinces with particular conditions that affect the associated fauna. The objective of this study was to evaluate the variation of hermatypic coral assemblages in this region and to determine their relationship with the heterogeneity of the benthonic habitat and spatial variables. A total of 156 transects were carried out at 41 sites in the years 2010 and 2011. The sampling effort returned 96.7% of the coral richness expected for the area, with a total of 15 species recorded. The results showed that richness, diversity and cover of corals varied only at the site and state scales. However, the composition and coverage of all coral species, as well as the benthonic habitat structure, differed significantly across the study scales (i.e. sites, zones and states). Canonical redundancy analysis showed that variation in the richness, diversity and assemblages of corals was explained by the cover of live corals, articulated calcareous algae, sandy substrate, sponges and fleshy macroalgae. This study suggests that local scale (i.e. site) variation in the coral assemblages of the Mexican Central Pacific is the result of the heterogeneity of the benthonic habitat, while geomorphological and oceanographic characteristics play a greater role at regional scale.El Pacífico Central Mexicano se localiza en una zona de transición oceanográfica entre dos provincias biogeográficas con condiciones ambientales particulares que afectan la fauna asociada. El objetivo del estudio fue evaluar la variación de las comunidades de coral hermatípico de esta región y determinar su relación con la heterogeneidad del hábitat bentónico y variables espaciales. Se realizaron 156 transectos en 41 sitios en los años 2010 y 2011. El esfuerzo de muestreo representó el 96.7% de la riqueza de coral esperada para el área, con un total de 15 especies registradas. Los resultados mostraron que la riqueza, diversidad y cobertura de corales variaron sólo en las escalas de sitio y de estado. En cambio, la composición y cobertura de todas las especies de coral, así como la estructura del hábitat bentónico, fueron significativamente diferentes en todas las escalas estudiadas (i.e. sitio, zona y estado). Los análisis de redundancia canónica mostraron que la variación de la riqueza, diversidad y de las comunidades de corales eran explicadas por la cobertura de coral vivo, algas calcáreas articuladas, sustrato arenoso, esponjas y macroalgas carnosas. Este trabajo sugiere que la variación de las comunidades de coral en el Pacífico Central Mexicano a escala local (i.e. sitio) se debe a la heterogeneidad del hábitat bentónico, mientras que a escala regional, las características geomorfológicas y oceanográficas desempeñan un papel más importante

Asociaciones de larvas de peces en relación a cambios ambientales en las Bahías Chamela, Jalisco y Santiago-Manzanillo, Colima (2001-2002)

Spatial and temporal structure of fish larvae associations and their relationship to the environmental variability were studied at Bahía Chamela, Jalisco, and Santiago-Manzanillo complex, Colima, during 2001-2002. Two spatial aggregations were found, related to the coastal physiography and to the adult habitat. The first was observed at Bahía Chamela, which integrated a combination of species belonging to coastal, demersal and inshore habitats (Bregmaceros bathymaster, Bairdiella sp., Cynoscion sp., Engraulis mordax, and Labrisomidae type 1) and the other in Santiago-Manzanillo composed by species from lagoon and inshore areas (Eucinostomus sp., Abudefduf troschelii, Haemulidae type 2 and 3, and Enneanectes sexmaculatus). Temporal organization was influenced by the environmental shift between two periods (warm and temperate) defined by the regional environmental variability. The warm period was characterized by tropical species (Harengula thrissina, Eucinostomus sp., Auxis sp., and Haemulidae type 3), related to high temperature and rainfall, while temperate period was dominated by species with a tropical-subtropical affinity (B. bathymaster, Bairdiella sp., Cynoscion sp., and E. mordax) and related to lower temperature and elevated nutrients, chlorophyll a and plankton concentrations.Se analizó la influencia de los factores ambientales sobre las asociaciones espacio-temporales de larvas de peces frente a Bahía Chamela, Jalisco y el conjunto de bahías Santiago-Manzanillo, Colima, durante un ciclo anual (2001-2002). Se identificaron dos agrupaciones relacionadas con la fisiografía de la costa y el hábitat de los adultos, una frente a Bahía Chamela integrada por una mezcla de especies de hábitats costero, demersal e intermareal-submareal (Bregmaceros bathymaster, Bairdiella sp., Cynoscion sp., Engraulis mordax y Labrisomidae tipo 1) y otra en Santiago-Manzanillo compuesta por especies de origen lagunar e intermareal-submareal (Eucinostomus sp., Abudefduf troschelii, Haemulidae tipos 2 y 3, así como Enneanectes sexmaculatus). La organización temporal estuvo influenciada por la alternancia entre dos periodos (cálido y templado) definidos por la variabilidad ambiental regional. El periodo cálido estuvo caracterizado por especies principalmente tropicales (Harengula thrissina, Eucinostomus sp., Auxis sp. y Haemulidae tipo 3), relacionadas con una mayor temperatura y precipitación pluvial, en cambio durante el periodo templado dominaron las especies de afinidad tropical-subtropical (B. bathymaster, Bairdiella sp., Cynoscion sp. y E. mordax), relacionadas con una menor temperatura e incrementos en las concentraciones de nutrimentos, clorofila-a y zooplancton

Ensamblajes bacterianos asociados a especies de coral del Pacífico central mexicano

The 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 per substrate across all sites. The environmental variables that explained the variation of the dominant bacterial groups in corals and sea water were the coverages of fleshy macroalgae, live coral and sponge. In contrast, variation in the sediments was explained by the coverages of sand, rubble and rock.El papel funcional de las bacterias asociadas a corales y su contribución a la salud del coral es aún desconocido en gran medida. Es necesario que primero se caracterice el ensamblaje microbiano del coral y sus cambios en la diversidad a través de las especies de coral, el espacio y tiempo. Los corales ramificados (e.g., género Pocillopora) son los principales constructores arrecifales a nivel mundial. Este estudio evaluó la estructura bacteriana asociada al mucus y tejidos de Pocillopora damicornis y Pocillopora verrucosa, así como del agua de mar y sedimentos circundantes en 6 sitios del Pacífico central mexicano. Se emplearon las técnicas DGGE y RFLP del ADNr 16S para generar los perfiles de bandeo o evaluar la diversidad. Además, se evaluó la relación del ensamblaje bacteriano-coral con variables ambientales y espaciales del entorno arrecifal (de cada sitio), utilizando análisis multivariados. Se obtuvieron 20 Unidades Taxonómicas Operacionales (OTU) diferentes, siendo los sedimentos los que presentaron mayor número. Se encontró una especificidad de grupos bacterianos para cada especie de coral, así 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, sólo una variación espacial significativa. Las variables ambientales que explican la variación de los grupos bacterianos dominantes en corales y agua de mar fueron las coberturas de macroalgas carnosas, coral vivo y esponja. En cambio, la variación en los sedimentos fue explicada por las coberturas de arena, escombro y roc

Seasonal abundance of the demersal copepod Pseudodiaptomus cokeri (Calanoidea: Pseudodiaptomidae) in a Caribbean estuarine environment

Seasonal abundance variations of the demersal copepod Pseudodiaptomus cokeri were examinated at three locations (center, north shore and south shore) in Phosphorescent Bay, Puerto Rico, throughout an annual cycle. Nocturnal oblique tows ( 2 1 :00-2 3 :00 hr) were taken biweeldy (three replicates) at each location with a coDicaI net (mouth diamcter = 0.5 m; mesh size = 1 35 11m) and a standard calibrated flowmeter. Water temperature and salinity measurements were taken at the surface and near the bottom in each location before towing activities using a SCT meter. o Chlorophyll-a concentrations were fluorometricaIly determined. The adult and copepodite stages of this species accountcld for approximately 1 .6% of the annual mean total zooplankton abundance of the bayo Higher abundance of P. cokeri (mean:l:l SD = 4 1 9 1 :!: 1 444 iÍldividuals m-3) was associated withSeasonal abundance variations of the demersal copepod Pseudodiaptomus cokeri were examinated at three locations (center, north shore and south shore) in Phosphorescent Bay, Puerto Rico, throughout an annual cycle. Nocturnal oblique tows ( 2 1 :00-2 3 :00 hr) were taken biweeldy (three replicates) at each location with a coDicaI net (mouth diamcter = 0.5 m; mesh size = 1 35 11m) and a standard calibrated flowmeter. Water temperature and salinity measurements were taken at the surface and near the bottom in each location before towing activities using a SCT meter. o Chlorophyll-a concentrations were fluorometricaIly determined. The adult and copepodite stages of this species accountcld for approximately 1 .6% of the annual mean total zooplankton abundance of the bayo Higher abundance of P. cokeri (mean:l:l SD = 4 1 9 1 :!: 1 444 iÍldividuals m-3) was associated with ool water temperatures and dry conditions (cooVdry season) which prevailed betw'een December and March relative to the period between April and November (wann/wet seasón) with lower abundance. F1uctuations of this population followed progressive increments in chlorophyll- a concentrations at the three sampling statigns (One-way ANOVA

Notes on two species of Processa (Decapoda: Processidae) from the Mexican Pacific

Material belonging to the genus Processa, held in the Regional Marine Invertebrates Collection in Mazatlán, Mexico, is revised including specimens of the widely distributed P. peruviana, and the scarcely collected P. hawaiensis. For comparative purposes with the specimens from Hawaii and other localities, a detailed description of a male of P. hawaiensis collected in continental Mexico is provided, including illustrations of all appendages. Small differences are noted with previous description and partial redescriptions of this species, including proportion between propodus and dactylus of the fourth pereopod, and between merus and carpus of the right cheliped. In addition, the shape and setation of the first pair of pleopods in the Mexican material differs from the description of P. hawaiensis based on African material