Anales de biología Vol. 4 (1985) Biología ambiental, 1
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- PublicationOpen AccessPlanificación territorial y medio ambiente de 1.a Región de Murcia: reseña bibliográfica(Murcia: Universidad de Murcia, Servicio de Publicaciones, 1985) Martín de Agar, Pilar; Ramírez-Díaz, Luis; Facultad de Biología
- PublicationOpen AccessMarine biology: an ecological approach.: reseña bibliográfica(Universidad de Murcia, Servicio de Publicaciones, 1985) Ros Aragonés, Joandomènec; Facultad de Biología
- PublicationOpen AccessCaracterísticas ambientales y fisiográficas de interés edafogenético del barranco de Leiva (Sierra Espuña, Murcia)(Universidad de Murcia, Servicio de Publicaciones, 1985) Ortiz Silla, Roque; Baños Jiménez, J.; Facultad de BiologíaAs a basis for a pedogenetic study. a description is given of the main features of the physical environment to which the soils of the Leiva ravine. in the Northeast of Sierra Espuña (Murcia. Spain). belong. The lithology of the area under consideration is made up 01' consolidated limestone rocks and detritical heterometric calcareous materials. The moisture regime of the soils is xeric, the temperature regime. mesic. 'Three potential associations ni' vegetation can be distinguished according to altitude. 'The topography is uneven. with generally steep slopes and hydrographic network courses of torrential type.
- PublicationOpen AccessContribución al conocimiento de la ictiofauna bentónica del Mar Menor (SE. España) y su distribución bionómica(Universidad de Murcia, Servicio de Publicaciones, 1985) Ramos Esplá, Alfonso A.; Pérez Ruzafa, Ángel; Facultad de BiologíaTwenty-one fish species belonging to seven families have been sampled in the Mar Menor. an hyperhaiine coastal lagoon. The more abundan1 preferential species are: Gobius cobiris and Blennius pavo, on shallow infralittoral rock; Pomaroschisrus microps, Callionymus risso and Solea vulgaris, on shell fine sands; Syngnarhus abaster, Hippocampus ramulosus. Gobius niger and Millerigobius macrocephalus, on Cymodocea-Caulerpa beds. The enlargement of one of the sea openings (El Estacio) is producing changes in the Mar Menor ecosystem. These changes are commented at benthic ichthyofauna level.
- PublicationOpen AccessLa simbiosis algal en Elysia timida risso 1818. Primeros resultados(Universidad de Murcia, Servicio de Publicaciones, 1985) Ros Aragonés, Joandomènec; Rodríguez, José; Facultad de BiologíaPreliminary ecological. microstructural and metabolical results are presented of a study on the symbiotic relationship between the Saccoglossan Opisthobranch Elysia timida, from the Mar Menor hypersaline lagoon (Murcia. SE Spain). and its algal chloroplasts. The intimate metabolical relationship is demonstrated from different points of view and using different techniques: cytological study through electron microscopy; primary production of the chloroplasts through the measure of the produced oxygen and of the incorporated I4C. etc. Some data on the biology of the species in its lagoon habitats complete the paper. which closes with a consideration on the work to be still done on the subject.