خيارات البحث
النتائج 1 - 10 من 15
Linking cadmium and mercury accumulation to nutritional intake in common dolphins (Delphinus delphis) from Patagonia, Argentina
2020
Machovsky Capuska, Gabriel E. | Machovsky-Capuska, Gabriel E. | von Haeften, Gabriela | Romero, M Alejandra | Rodríguez, Diego H. | Gerpe, Marcela S.
Bioaccumulation of Hg and Cd from food is a complex ecological process that has been oversimplified in the past. Common dolphins (Delphinus delphis) provide a powerful model to biomonitor metal concentrations in marine environments worldwide. We combined proportions-based nutritional geometry with metal analysis, stomach content analysis and the proximate composition of prey, to yield novel insights into the accumulation of Hg and Cd. Our analysis showed an age-related accumulation trend for Cd and Hg in kidney and liver, with highest concentrations found at 18 years of age. When viewed through the lens of nutritional ecology, Argentine anchovy (58.1 Mass %) and South American long-finned squid (22.7 Mass %), provided most of the dietary intake of protein (P) and lipids (L) (P:L ratio = 2.6:1.0) and also represented the main source for Cd and Hg levels accumulated in their bodies. This study presents unprecedented evidence on metal accumulation in relation to age and nutritional intake in a marine predator.
اظهر المزيد [+] اقل [-]Marine ecology and oil pollution
1976
Baker, Jenifer M.
Oil pollution and marine ecology
1972
Nelson-Smith, A (Anthony)
La Pollution des eaux marines
1976
Pérès, Jean-Marie | Bellan, Gérard
Effects of pollutants on marine communities and ecosystems in Limassol Bay
1987
Hadjichristophorou, M. | Demetropoulos, A. (Ministry of Agriculture and Natural Resources, Nicosia (Cyprus). Dept. of Fisheries)
[Comparative study of ecosystem modifications of coastal waters subject to pollutants in the Gulf and Port of Patras]
1987
Castritsi-Catharios, J. | Ganias, G. | Panagopoulos, D. (Athens Univ. (Greece). Lab. de Zoologie)
Analysis of Cystoseira corniculata (Phaeophyceae) populations in the Boka Kotorska Bay [Adriatic sea, Montenegro] | Analiza naselja Cystoseira corniculata (Phaeophyceae) u Bokokotorskom zalivu [Jadransko more, Crna Gora]
2009
Macic, V., Institut za biologiju mora, Kotor (Montenegro)
New locations for the distribution of algae C. corniculata (Phaeophyceae) are presented, with a scope to improve scarce knowledge on phytobenthos of the Montenegrian coast. In the Bay of Boka Kotorska this algae is found on 10 locations and on 3 locations, on depth of 3 m and 5 m, measurements of wet weight and length of primary branches are done. Differences between biomass of algae are note between different depths and different seasons, but between different locations there are no significant differences.
اظهر المزيد [+] اقل [-]Modelling the impact of climate change on the Wadden Sea ecosystem
2001
Brinkman, A.G.
