Search

Els enclavaments de coral·ligen són importants per ser punts calents de biodiversitat a més de ser roques biogèniques pròpies del Mediterrani. Per totes les característiques especials que presenta es du a terme l’estudi del paisatge submarí al sector sud del Golf de València. S’ empren diferents tècniques tal i com l’índex de rugositat del substrat, per a l’avaluació de la complexitat topogràfica, les diferències d’alçada entre les bio concrecions i reconeixements visuals. Aquestes mesures s’han pogut dur a terme en 4 de les 8 localitzacions mostrejades. Els resultats obtinguts han estat les diferències en la complexitat topogràfica entre unes localitzacions i altres i les diferències d’alçades predominants entre unes zones i altres. A més, es poden observar variacions entre les diferents localitzacions tal i com alçada de la vora, relacionada amb l’antiguitat del coral·ligen i la grandària d’aquest., The coralligenous assemblages are important as they are considered biodiversity hot spots in addition to be biogenetic rocks exclusives from Mediterranean Sea. Due to these special characteristics an underwater landscape study is made in a South sector of Valencian Gulf. In order to attain this study, different techniques are used just like Rugosity Index, height differences and visual recognition. These measurements have been made in 4 out of 8 locations studied. The results obtained have been the topographic complexity differences comparing locations and the height differences predominant in distinct locations. Moreover, some differences can be observed in the various locations studied just like edge height which is related with the age and size of the coralligenous.

not available

Podeu consultar l'Informe complet a: http://hdl.handle.net/2445/23672

12 pages, 2 figures, 2 tables., The perception of the Majorcan society of the ecological functions and services provided by Posidonia oceanica seagrass beds and their importance to the economy of the island was assessed by (1) the analysis of the cultural frameworks of the news related to this species published in the main daily Majorcan newspapers from October 2001 to August 2003, (2) a review of the actions performed by public and private institutions, and socio-economic and social groups of Mallorca with an interest and/or a mandate on the sustainable use of the marine environment, completed with interviews with representatives of those institutions and groups and, (3) 150 personal interviews performed to Majorcan residents and turists. P. oceanica was known only to the 37% of the persons interviewed, and less than half of these considered the ecological functions and services provided by this species essential. The public and private institutions, and socio-economic and social groups of Mallorca with an interest and/or a mandate on the sustainable use of the marine environment had an adequate knowledge about the ecological values and importance of this species to the economy of the island and considered acceptable the different actions and programs in support of P. oceanica conservation performed by them. However, these knowledge and efforts were not transferred to the Majorcan society, for only 10% of the persons interviewed could name any activity performed in support of the conservation of the marine environment of the island. The number of P. oceanica-related news published was low (74) and reflects the low knowledge of the Majorcan society has about this species. Results are discussed in the framework of the conservation and sustainable uses of this marine ecosystem of high ecological and economical value to Mallorca., Aquest estudi constitueix el projecte fi de carrera de la Llicenciatura en Ciències Ambientals de la Universitat Autònoma de Barcelona de F.J. Medina Pons i fou relalitzat en el marc del project de recerca EVK3-CT-2000-00044 Monitoring and Managing of European Seagrass Beds finançat per la Comissió Europea.