Results 21 to 30 of about 8,072 (159)
Najas marina L. subsp. marina Artbeschreibung: Blattscheiden +/- ganzrandig, selten mit 1 Zähnchen auf jeder Seite. Mittelnerv des Blattrückens kaum bestachelt. Blätter (des Blütenstands) meist 1-2 mm breit (zwischen den Zähnen gemessen). Reife Früchte 4-8 mm lang und 1,5-2 mm dick.
Konrad Lauber +2 more
openaire +1 more source
El Mar Caribe colombiano posee tanto arrecifes coralinos continentales costeros, como oceánicos. A partir de muestreos cuantitativos usando video-transectos de cadena, y análisis multivariados, se determinó que existen esquemas de variación espacial a ...
Guillermo Díaz-Pulido +4 more
doaj +1 more source
¿Estamos acabando con las especies marinas?
Este artículo es una reflexión detallada sobre una experiencia docente, en torno a un tema de tan vital actualidad, como es el de "las especies marinas y su extinción ".
Miguel L. Lopera García +1 more
doaj +2 more sources
Contemporary Problems of Nautical Tourism Development in Croatia
The paper deals with the problems that have arisen due tothe rapid development of nautical tourism on the Croatiancoast. The fact is that Croatia, unlike other Mediten·aneantourist countries still does not control nautical tourism developmentin the sense
Srećko Favro, Nikola Glamuzina
doaj +1 more source
The CAIBOX cruise was conducted from 25 July to 14 August 2009. Three consecutive transects (zonal, meridional, and transverse) formed a closed box to the west of the Strait of Gibraltar.
LI Carracedo +5 more
doaj +1 more source
Improvements in a fast potentiometric seawater alkalinity determination
In the present paper, we introduce some methodological improvements in a potentiometric technique for determining seawater alkalinity. This fast method (about two minutes per sample) uses open flasks and an ordinary titration system without ...
F F Pérez +3 more
doaj +1 more source
Fish larvae in Bahía Sebastián Vizcaíno and the adjacent oceanic region, Baja California, México [PDF]
The taxonomic composition of the fish larvae assemblage of Bahía Sebastián Vizcaíno and the adjacent oceanic region is presented based on oblique zooplankton hauls made during 12 oceanographic surveys between fall 1997 and fall 2000.
S. Patricia Jiménez-Rosenberg +3 more
doaj +3 more sources
Régimen de los puertos deportivos de competencia de euskadi
Marinas fall within the competence of the Autonomous Community of the Basque Country and therefore part of the objective scope of the recent Law 2/2018, of 28 June, on Ports and Maritime Transport of the Basque Country.
María Zambonino Pulito
doaj +1 more source
The small-scale common octopus (Octopus vulgaris) fishery in Galician waters (NW Spain) was studied using a model based on information obtained from fishers.
Jaime Otero +4 more
doaj +1 more source
Systematic list of marine fishes from Bahia Magdalena, Baja California Sur (Mexico)
Bahía Magdalena, Baja California Sur (Mexico), is an interesting place where, because of its geographic location and environmental characteristics, a high biodiversity is found.
J De-la-Cruz-Agüero +4 more
doaj +1 more source

