Subjects -> EARTH SCIENCES (Total: 771 journals)
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OCEANOGRAPHY (88 journals)

Showing 1 - 77 of 77 Journals sorted by number of followers
Deep Sea Research Part II: Topical Studies in Oceanography     Hybrid Journal   (Followers: 29)
Deep Sea Research Part I : Oceanographic Research Papers     Hybrid Journal   (Followers: 23)
Estuaries and Coasts     Hybrid Journal   (Followers: 23)
Limnology and Oceanography     Hybrid Journal   (Followers: 22)
Progress in Oceanography     Hybrid Journal   (Followers: 21)
Journal of Marine Biology & Oceanography     Hybrid Journal   (Followers: 19)
New Zealand Journal of Marine and Freshwater Research     Hybrid Journal   (Followers: 18)
Journal of Physical Oceanography     Hybrid Journal   (Followers: 18)
Frontiers in Marine Science     Open Access   (Followers: 17)
Journal of Marine Sciences     Open Access   (Followers: 17)
Coastal Engineering     Hybrid Journal   (Followers: 15)
Advances in Oceanography and Limnology     Open Access   (Followers: 15)
Journal of Oceanography     Hybrid Journal   (Followers: 14)
Maritime Studies     Open Access   (Followers: 13)
International Journal of Oceanography     Open Access   (Followers: 12)
Advances in Statistical Climatology, Meteorology and Oceanography     Open Access   (Followers: 11)
Atmospheric and Oceanic Science Letters     Open Access   (Followers: 10)
Bulletin of Marine Science     Full-text available via subscription   (Followers: 9)
Fisheries Oceanography     Hybrid Journal   (Followers: 8)
Journal of Oceanography and Marine Science     Open Access   (Followers: 7)
Open Journal of Marine Science     Open Access   (Followers: 6)
Limnology and Oceanography: Methods     Hybrid Journal   (Followers: 6)
Journal of Operational Oceanography     Hybrid Journal   (Followers: 6)
Physical Oceanography     Hybrid Journal   (Followers: 6)
Paleoceanography and Paleoclimatology     Full-text available via subscription   (Followers: 5)
Marine Science     Open Access   (Followers: 5)
Limnology and Oceanography: Fluids and Environments     Full-text available via subscription   (Followers: 5)
Ocean Yearbook Online     Hybrid Journal   (Followers: 4)
Journal of Oceanology and Limnology     Hybrid Journal   (Followers: 4)
Limnology and Oceanography Letters     Open Access   (Followers: 4)
Journal of Marine Science and Engineering     Open Access   (Followers: 4)
African Journal of Marine Science     Hybrid Journal   (Followers: 4)
Oceanology     Hybrid Journal   (Followers: 3)
Journal of Aquatic Sciences     Full-text available via subscription   (Followers: 3)
Limnology and Oceanography e-Lectures     Open Access   (Followers: 3)
Journal of Coastal Development     Open Access   (Followers: 3)
Ciencias Marinas     Open Access   (Followers: 3)
Journal of Marine Science and Application     Hybrid Journal   (Followers: 3)
Journal of Ocean Engineering and Marine Energy     Hybrid Journal   (Followers: 3)
Tropical Oceanography     Open Access   (Followers: 2)
Indian Journal of Geo-Marine Sciences     Open Access   (Followers: 2)
Mediterranean Marine Science     Open Access   (Followers: 2)
Regional Studies in Marine Science     Hybrid Journal   (Followers: 2)
Annals of Marine Science     Open Access   (Followers: 2)
Limnology and Oceanography: Bulletin     Hybrid Journal   (Followers: 2)
Annals of Limnology and Oceanography     Open Access   (Followers: 2)
Development and Applications of Oceanic Engineering     Open Access   (Followers: 2)
Journal of Ocean Engineering and Technology     Open Access   (Followers: 1)
Acta Aquatica : Aquatic Sciences Journal     Open Access   (Followers: 1)
Ocean Life     Open Access   (Followers: 1)
Marine Systems & Ocean Technology     Hybrid Journal   (Followers: 1)
Marine Life Science & Technology     Hybrid Journal   (Followers: 1)
Journal of Ocean University of China (English Edition)     Hybrid Journal   (Followers: 1)
Journal of Ocean Engineering and Science     Open Access   (Followers: 1)
Coastal Engineering Proceedings : Proceedings of the International Conference on Coastal Engineering     Open Access   (Followers: 1)
Marine Technology Society Journal     Full-text available via subscription   (Followers: 1)
Scientia Marina     Open Access   (Followers: 1)
Western Indian Ocean Journal of Marine Science     Open Access   (Followers: 1)
Asian Journal of Fisheries and Aquatic Research     Open Access  
Thalassas : An International Journal of Marine Sciences     Hybrid Journal  
Oceans     Open Access  
Aquatic Research     Open Access  
Jurnal Kelautan Tropis     Open Access  
Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan     Open Access  
Journal of Agricultural and Marine Sciences     Open Access  
Turkish Journal of Maritime and Marine Sciences     Open Access  
Arquivos de Ciências do Mar     Open Access  
Scientific Drilling     Open Access  
Jurnal Kelautan : Indonesian Journal of Marine Science and Technology     Open Access  
Oceanologia     Open Access  
Revista de Gestão Costeira Integrada     Open Access  
Revista Ciencias Marinas y Costeras     Open Access  
Egyptian Journal of Aquatic Research     Open Access  
China Ocean Engineering     Hybrid Journal  
Revista de Biología Marina y Oceanografía     Open Access  
Latin American Journal of Aquatic Research     Open Access  
Acta Oceanologica Sinica     Hybrid Journal  
Similar Journals
Journal Cover
Revista de Biología Marina y Oceanografía
Journal Prestige (SJR): 0.23
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0717-3326 - ISSN (Online) 0718-1957
Published by SciELO Homepage  [688 journals]
  • Congruence and response to environmental factors of different biodiversity
           metrics in the Gulf of Batabanó, Cuba

    • Abstract: Resumen: Diferentes métricas de biodiversidad se deben explorar para evaluar de manera más eficiente los cambios observados en las comunidades. Sin embargo, el desempeño de distintas métricas de biodiversidad no ha sido explorado en el golfo de Batabanó, lo que puede dificultar la selección de índices adecuados para el monitoreo ambiental. Para solventar esta problemática seis métricas de biodiversidad (riqueza de especies, equidad de Pielou, diversidad de Shannon, diversidad taxonómica, distintividad taxonómica promedio y variación en la distintividad taxonómica) fueron comparadas para determinar su congruencia y respuestas ante variables abióticas (salinidad, temperatura, turbidez, profundidad) y factores (zonas y años). Los resultados obtenidos por correlaciones entre las métricas y sus respuestas a las variables abióticas y factores analizados mostraron complementariedad entre la riqueza de especies, equidad de Pielou, diversidad de Shannon, distintividad taxonómica promedio y variación en la distintividad taxonómica, no siendo así para la diversidad taxonómica. Según los resultados de este trabajo, se sugiere el uso de la riqueza de especies y las métricas de distintividad taxonómica ∆+ y Λ+ para evaluar la calidad ambiental del golfo de Batabanó. Además se deben evaluar sus desempeños en otros grupos de organismos.Abstract: Different biodiversity metrics should be explored to more efficiently assess observed changes in communities. However, the performance of different biodiversity metrics has not been explored in the Gulf of Batabanó, making difficult to select suitable indices for environmental monitoring. To solve this problem, six biodiversity metrics (species richness, Pielou equity, Shannon diversity, taxonomic diversity, average taxonomic distinctiveness, and variation in taxonomic distinctiveness) were compared to determine their congruence and responses to abiotic variables (salinity, temperature, turbidity, depth) and factors (zones and years). The results based on the correlations between the metrics and their responses to the abiotic variables and factors analyzed showed complementarity between species richness, Pielou evenness, Shannon diversity, average taxonomic distinctiveness, and variation in taxonomic distinctiveness, not being the case for taxonomic diversity. According to the results of this work, the use of species richness and taxonomic distinctiveness metrics ∆+ and Λ+ is suggested to evaluate the environmental quality of the Gulf of Batabanó. In addition, their performances in other groups of organisms should be evaluated.
       
  • Composition, abundance, and distribution of cumaceans (Crustacea:
           Peracarida) in the National Parks of Isla Mujeres and Isla Contoy,
           Quintana Roo, Mexico

    • Abstract: Resumen: En este estudio se evaluó la composición, distribución y abundancia de cumáceos colectados en los Parques Nacionales Isla Mujeres e Isla Contoy, Quintana Roo, México. Los especímenes fueron recolectados con una red de cuchara (0,30 m de ancho por 0,48 m de largo y 330 µm de apertura de malla). Los arrastres se realizaron sobre vegetación sumergida en transectos de 10 m de largo paralelos a la línea de costa. Adicionalmente, en una estación de Isla Mujeres se utilizó una trampa de luz blanca con una intensidad de 30 lm. Se midieron los parámetros fisicoquímicos in situ, los cuales estuvieron dentro de los valores establecidos por la norma oficial mexicana para aguas no contaminadas; temperatura (27,26 ± 0,64 °C); salinidad (35,65 ± 0,21); oxígeno disuelto (8,01 ± 0,88 mg L-1); sólidos disueltos (22,82 ± 0,22 ppm); y pH (8,07 ± 0,15). En cuanto a las familias Bodotriidae y Nannastacidae, se identificaron un total de 7.590 ejemplares pertenecientes a 5 géneros y 18 especies. Cumella sp. “A” fue la especie más abundante con 5.364 ejemplares seguida de Vaunthompsonia floridana con 1.391 ejemplares. Se registró Vaunthompsonia minor en 9 de las 11 estaciones de muestreo. Se amplió el rango geográfico de distribución de Cyclaspis mexicansis, Cumella achimae, C. bacescui, C. andri, C. caribbeana, C. croixensis, C. medeeae y C. somersi. La mayor diversidad y equidad se presentó en Isla Mujeres (3,05 y 0,88 bits ind-1, respetivamente). El género Vaunthompsonia fue dominante en Isla Mujeres, mientras que el género Cumella fue dominante en Isla Contoy.Abstract: In this study, the composition, distribution, and abundance of cumaceans collected in Isla Mujeres and Isla Contoy National Parks, Quintana Roo, Mexico, were evaluated. The specimens were collected with a scoop net (0.30 m wide by 0.48 m long and 330 µm mesh opening). The trawls were carried out on submerged vegetation in 10 m long transects parallel to the coastline. Additionally, at a station in Isla Mujeres, a white light trap with an intensity of 30 lm was used. The values of physicochemical parameters were measured in situ, which were within established by the official Mexican standard for uncontaminated waters; temperature (27.26 ± 0.64 °C); salinity (35.65 ± 0.21); dissolved oxygen (8.01 ± 0.88 mg L-1); total dissolved solids (22.82 ± 0.22 ppm); and pH (8.07 ± 0.15). Regarding the families Bodotriidae and Nannastacidae, a total of 7,590 specimens belonging to 5 genera and 18 species were identified. Cumella sp. “A” was the most abundant species with 5,364 specimens followed by Vaunthompsonia floridana with 1,391 specimens. Vaunthompsonia minor was recorded in 9 of the 11 sampling stations. The geographic distribution ranges of Cyclaspis mexicansis, Cumella achimae, C. bacescui, C. andri, C. caribbeana, C. croixensis, C. medeeae, and C. somersi were extended. The highest diversity and equitability occurred in Isla Mujeres (3.05 and 0.88 bits ind-1, respectively). The genus Vaunthompsonia was dominant in Isla Mujeres, while the genus Cumella was dominant in Isla Contoy.
       
  • Macro and microelement analysis of Sargassum fluitans and Sargassum natans
           arriving in the coastal zone of Cancun, Quintana Roo, Mexico

    • Abstract: Abstract: In recent years, the massive increase in Sargassum landings on the Mexican Caribbean coast has generated negative environmental repercussions. This study has two main objectives (1) to analyze the macro and micronutrients of Sargassum fluitans and S. natans in order to (2) use them in the local and regional industry as a biofertilizer in the production of ornamental plants. Sargasso samples were collected from floating arrivals in the sea and landfall in the area of three beaches in Cancun, Quintana Roo, Mexico in 2018. The quantification of the elements in the samples was carried out using the method of fundamental parameters. The concentration of the macronutrients Ca, Na, K and Cl was higher than the elements Mg, S, Si and Sr, as well as two orders of magnitude higher than Al and P. Additionally, the trace elements Fe, Mn, Zn, Cu, and Ni were found in both species. It is worth mentioning that most of these elements are essential to complete the life cycle of plants; therefore, S. fluitans and S. natans can be considered as an excellent natural resource and alternative as a soil improver for the cultivation of ornamental plants.Resumen: En los últimos años el aumento masivo de los arribazones de Sargassum en las costas del Caribe Mexicano ha generado repercusiones negativas ambientales, sociales y económicas. Este estudio tiene dos objetivos principales (1) analizar los macro y micronutrientes de Sargassum fluitans y S. natans y con el fin de (2) utilizarlas en la industria local y regional como biofertilizante en la producción de plantas de ornato. Se recolectaron las muestras de sargazo de arribazones flotantes en el mar y el recalado en la zona de tres playas de Cancún, Quintana Roo, México en el año 2018. La cuantificación de los elementos en las muestras se realizó utilizando el método de parámetros fundamentales. La concentración de los macronutrientes Ca, Na, K y Cl fue mayor que los elementos Mg, S, Si y Sr, así como dos órdenes de magnitud superior al Al y P. Adicionalmente, se encontraron los elementos traza Fe, Mn, Zn, Cu, y Ni en ambas especies. Cabe mencionar que la mayoría de estos elementos son esenciales para completar el ciclo de vida de las plantas; por lo tanto, S. fluitans y S. natans pueden ser considerados como un excelente recurso natural y alternativa de aprovechamiento como mejorador de suelos para el cultivo de plantas de ornato.
       
  • Predation rate of Panulirus argus (Decapoda: Palinuridae) on gastropod
           mollusks in two fishing areas of southern Cuba

    • Abstract: Resumen: La langosta espinosa Panulirus argus es un mesodepredador que tiene un impacto en las poblaciones de moluscos bentónicos que constituyen su alimento. En el presente estudio, se determinó la composición de la dieta de P. argus y la presión de depredación que ejerce sobre los gastrópodos de las regiones pesqueras Santa Cruz del Sur (SCrso) y golfo de Batabanó (GB), Cuba. Mediante arrastres se cuantificó la densidad y diversidad de gastrópodos, que, basado en la abundancia de langostas, sirvió para estimar el impacto de la depredación. Se capturaron 250 langostas: 62 en SCrso octubre 2012, 136 en el GB febrero 2014 y 52 en el GB julio 2018. La vacuidad fue similar en SCrso (38,7%) y en el GB (38,0%). Se registraron 13 categorías tróficas, las más frecuentes: opérculos (48,8%) y restos de crustáceos (48,0%), de conchas (47,2%) y vegetales (35,0%), demostrando que la dieta se compone principalmente de moluscos y crustáceos. La frecuencia de ocurrencia de vegetales sugiere consumo no accidental. Se identificaron 17 especies de moluscos, siendo Tegula fasciata, Phrontis antillarum, Aliger gigas, Turbo castanea y Chione cancellata las más frecuentes. La mayor tasa de depredación fue sobre las especies T. fasciata (3,36), P. antillarum (0,54) y A. gigas (0,45). La presión de depredación fue 0,92 gastrópodos langosta-1 en SCrso y 3,31 gastrópodos langosta-1 en el GB, lo que según las respectivas densidades de langostas (3.546 langostas km-2 y 3.837 langostas km-2) y gastrópodos (3,76 ind. m-2 y 1,45 ind. m-2), demostró que P. argus consume 0,087% de los gastrópodos en SCrso y 0,887% en el GB. Se encontraron además evidencias de canibalismo.Abstract: The meso-predator Panulirus argus has an impact on the populations of benthic mollusks that constitute its food. In the present study, composition of P. argus diet and predation pressure exerted on gastropods population from Santa Cruz del Sur (SCrso) and Gulf of Batabanó (GB) fishing regions, Cuba, were determined. Gastropod density and diversity were quantified by trawling, which based on the abundance of lobsters reported for each region, served to estimate the impact of predation on gastropod community. 250 lobsters were captured: 62 from SCrso in October 2012, 136 from GB in February 2014 and 52 from GB in July 2018. The void was similar in SCrso (38.7%) and GB (38.0%). Thirteen trophic categories were recorded, the most frequent: operculums (48.8%), crustacean remains (48.0%), shell remains (47.2%) and plant remains (35.0%), showing that the diet is mainly composed of mollusks and crustaceans. The frequency of occurrence of plant remains suggests non-accidental consumption. Seventeen species of mollusks were identified, being Tegula fasciata, Phrontis antillarum, Aliger gigas, Turbo castanea and Chione cancellata the most frequent. The most predated species were T. fasciata (3.36), P. antillarum (0.54) and A. gigas (0.45). Predation pressure was 0.92 gastropods lobster-1 in SCrso and 3.31 gastropods lobster-1 in GB, which according to the respective densities of lobsters (3,546 lobsters km-2 and 3,837 lobsters km-2) and gastropods (3.76 ind. m-2 and 1.45 ind. m-2), allowed estimating that lobsters consume 0.087% of the gastropod community in SCrso and 0.887% in GB. Evidence of cannibalism was also found.
       
  • Dietary enrichment with crude protein content and feed additives (Bacillus
           spp. and yeast strains) improves growth performance, survival and
           circulating hemocytes in juvenile white shrimp, Litopenaeus vannamei

    • Abstract: Abstract: In this study the enrichment dietary effect with different crude protein levels (CP) and feed additives on growth, survival, feed conversion ratio (FCR), feed consumption (FC) and total hemocyte count (THC) in juvenile white shrimp Litopenaeus vannamei were evaluated. The study covered two bioassays: in the first one, juveniles were daily fed for 45 days with four experimental diets containing: (1) Control, commercial feed (35% CP); (2) 29% CP; (3) 32% CP; (4) 35% CP. After the 29% CP diet was selected, juveniles in bioassay II were daily fed for 45 days with a single CP diet complemented with probiotics: (1) Control, commercial feed (35% CP); (2) 29% CP; (3) 29% CP + Bacillus mix at 1×106 CFUg-1 feed; and (4) 29% CP + yeast mix at 1×106 CFUg-1 feed. Juvenile shrimp fed with experimental diets gained significantly more weight and increased survival, FCR, FC and THC compared with control diet. However, differences among experimental diets were not significant. In bioassay II, juvenile shrimp fed with experimental diet + feed additives significantly increased survival, FCR, FC and THC compared with control diet. Growth of juveniles significantly increased with 29% CP and 29% CP + yeast mix diets, compared with control group. Complementing the diet with yeast mix showed higher survival and THC of juveniles compared with the other experimental treatments. Different CP levels in shrimp diet improved growth, survival and circulating hemocytes, and addition of mixed yeast as feed additive induced better survival and immune response in juvenile shrimp.Resumen: En este estudio se evaluó el efecto del enriquecimiento de dietas con diferentes niveles de proteína cruda (CP) y aditivos en el crecimiento, supervivencia, tasa de conversión alimenticia (FCR), consumo de alimento (FC) y conteo total de hemocitos (THC) en juveniles de camarón blanco Litopenaeus vannamei. El estudio consta de dos bioensayos: en el primero, los juveniles fueron alimentados diariamente por 45 días con cuatro dietas experimentales con diferente contenido de proteína: (1) Alimento comercial o control, CP 35%; (2) CP 29%; (3) CP 32%; (4) CP 35%. Después de seleccionar CP 29%, en el bioensayo II los juveniles fueron alimentados diariamente por 45 días con una dieta proteica complementada con probióticos: (1) Alimento comercial o control, CP 35%; (2) CP 29%; (3) CP 29% + mezcla de Bacillus a 1×106 UFCg-1 alimento; y (4) CP 29% + mezcla de levaduras a 1×106 UFCg-1 alimento. Los camarones juveniles alimentados con las dietas experimentales mostraron ganancia en peso significativamente mayor e incremento en supervivencia, FCR, FC y THC comparado con la dieta control. Sin embargo, no hubo diferencias significativas entre las dietas experimentales. En el segundo bioensayo, los juveniles alimentados con la dieta experimental + aditivos alimentarios incrementaron significativamente supervivencia, FCR, FC y THC comparado con la dieta control. El crecimiento de juveniles se incrementó significativamente con las dietas CP29% y CP29%+mezcla de levaduras, comparado con el crecimiento de la dieta control. La dieta complementada con la mezcla de levaduras mostró el valor más alto de supervivencia y THC de juveniles comparado con los demás tratamientos experimentales. Los diferentes niveles experimentales de CP incluidos en la dieta de camarón incrementaron crecimiento, supervivencia y hemocitos circulantes; la adición de una mezcla de levaduras como aditivo alimentario, indujo mejor supervivencia y respuesta inmune en juveniles de camarón.
       
  • Length-weight relationship of four batoid species from the Pacific coast
           of Ecuador

    • Abstract: Abstract: Length-weight relationships (LWR) were estimated for four species of batoids, Zapteryx xyster, Rostroraja equatorialis, Pseudobatos leucorhynchus and Gymnura crebripunctata, collected in Ecuadorian waters. Values of the allometric growth parameter (b) oscillated from 2.41 to 3.15. Pseudobatos leucorhynchus and G. crebripunctata exhibited isometric type growth, while Z. xyster and R. equatorialis showed negative and positive allometric growth, respectively. New records of minimum sizes were obtained for free-swimming R. equatorialis (7.8 cm TL) and G. crebripunctata (20.0 cm DW). Data obtained constitute a baseline for future management and conservation studies.
       
  • Length-weight relationships and relative condition factor in razor
           surgeonfish, Prionurus laticlavius (Teleostei: Acanthuridae) from the
           southwestern coast of the Gulf of California, Mexico

    • Abstract: Abstract: The razor surgeonfish, Prionurus laticlavius, listed on the IUCN Red List of Threatened Species under the Least Concern category, plays an important ecological role as energy regulator in reef communities, but it is sought by the aquarium and aquaculture industry, and also is consumed by people. This study estimated the length-weight relationship (LWR) and relative condition factor (K rel ) in P. laticlavius. The equation for length-weight relationship was TW= 0.02 TL 3.01 for the Overall category, and the relative condition factor was 1.28. A total of 379 fish (3-45.6 cm total length) were collected in the southwestern coast of the Gulf of California using harpoon (for large fishes) and hand net (for small fishes), of which 181 were females (20.2-45.6 cm), 137 males (20.6-43.4 cm), and 61 juveniles (3-19.5 cm). Allometric coefficient b of LWR for the Overall category suggested isometric growth (b = 3.01), positive allometric growth for juveniles (b = 3.14), and negative allometric growth for adults (2.75). Results of K rel showed higher values for females during the warm season. The population showed a good nutritional condition, mainly in the warm season. This work is the first to estimate LWR and K rel for P. laticlavius, which will inform stock assessment and the management of this species in the Gulf of California.
       
 
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