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| Registros recuperados: 126 | |
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| de la Serna, J.M.; Valeiras, J.. |
| (Contribution to the biological study of blue shark (Prionace glauca) incidental catch by the Spanish surface longline fisheries for swordfish in the western Mediterranean). Blue shark (Prionace glauca) bycatches in the Spanish surface longline fisheries in the Mediterranean targeting swordfish (Xiphias gladius) from 1999 to 2001 represented 2% of the total catch. Information from onboard observers during 861 fishing sets in 26 longliners indicated that the highest catches were made in area 4-35000 (Alboran Sea) which represents 75.6% of the total observed catch of blue shark. The observed CPUE are from 5.5 to 34.1 kg/1000 hooks. Mean size at capture (LJFL) was 141.6 cm (SD=35.88). The proportion of females from the total was 0.5. |
| Tipo: Report |
Palavras-chave: Swordfish fishery; Mediterranean; Blue shark; By-catch; Prionace glauca; Shark fisheries. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/790 |
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| Markandya, Anil; Arnold, S.; Cassinelli, Mariaester; Taylor, Tim J.. |
| This paper examines existing measures taken to protect the coastal zones of the Mediterranean Sea and assesses their success. A summary of the main pressures facing these zones is given, followed by an analysis of the legislation covering coastal zone development in ten countries: Algeria, Croatia, Egypt, France, Israel, Italy, Malta, Spain, Tunisia and Turkey. We find that not all of these states have legislation specifically covering coastal zones, but there is concern in all areas that the legislation is not working, We also look at the costs and benefits of controlling coastal development. Firstly, a literature review of valuation studies identifies a range of values placed on developed and undeveloped coastline for both users and local property... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Coastal Zone Management; Legislation; Littoral; Mediterranean; Recreation; Environmental Economics and Policy; Q5. |
| Ano: 2009 |
URL: http://purl.umn.edu/54290 |
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| Francioni,Matteo; Lai,Roberto; D'Ottavio,Paride; Trozzo,Laura; Kishimoto-Mo,Ayaka W.; Budimir,Katarina; Baldoni,Nora; Toderi,Marco. |
| ABSTRACT: Studies that have investigated soil carbon dynamics under Mediterranean conditions are scarce and fragmented and contrasting results have often been reported. This study aimed to fill some gaps in our knowledge by: (i) determining annual dynamics of total (RS) and heterotrophic (RH) soil respiration; (ii) estimating annual cumulative RS and RH; and (iii) investigating the relationships between RS and RH and soil temperature and water content. The study was carried out in central Italy, for a plain and a hilly site, with the focus on two main cropping systems: an alfalfa-based forage system and a wheat-based rotation system. RS and RH showed different dynamics, with spatial and temporal variability across these sites. Estimated annual cumulative... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mediterranean; Alfalfa; Greenhouse gasses; Soil carbon stock; Wheat. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000301400 |
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| Registros recuperados: 126 | |
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