| Rodrigo Riera,Fernando Tuya,Myriam Rodríguez,Óscar Monterroso,Eva Ramos. 2013. Confounding response of macrofauna from a confluence of impacts: brine and sewage pollution. Acta Oceanologica Sinica, 32(10):74－81 |
| Confounding response of macrofauna from a confluence of impacts: brine and sewage pollution |
| Confounding response of macrofauna from a confluence of impacts: brine and sewage pollution |
| Received:March 10, 2012 Revised:October 23, 2012 |
| DOI：10.1007/s13131-013-0368-3 |
| Key words:macrofauna amphipoda polychaeta brine sewage Canary Islands |
| 中文关键词: macrofauna amphipoda polychaeta brine sewage Canary Islands |
| 基金项目:The Spanish Ministry of the Environment and Rural and Marine Affairs(Project:"Minimisation of environmental impacts from brine disposals over marine seabed biodiversity,with special reference to Cymodocea nodosa seagrass meadows" 2007-2010)under contract No. 056/SGTB/2007/2.4. |
| Author Name | Affiliation | E-mail | | Rodrigo Riera | Centro de Investigaciones Medioambientales del Atlá
ntico(CIMA SL), Arzobispo Elí
as Yanes 44, 38206 La Laguna, Tenerife, Canary Islands, Spain | rodrigo@cimacanarias.com | | Fernando Tuya | BIOGES, University of Las Palmas de G. C., 35017 Las Palmas de Gran Canaria, Canary Islands, Spain | | | Myriam Rodríguez | Centro de Investigaciones Medioambientales del Atlá
ntico(CIMA SL), Arzobispo Elí
as Yanes 44, 38206 La Laguna, Tenerife, Canary Islands, Spain | | | Óscar Monterroso | Centro de Investigaciones Medioambientales del Atlá
ntico(CIMA SL), Arzobispo Elí
as Yanes 44, 38206 La Laguna, Tenerife, Canary Islands, Spain | | | Eva Ramos | Centro de Investigaciones Medioambientales del Atlá
ntico(CIMA SL), Arzobispo Elí
as Yanes 44, 38206 La Laguna, Tenerife, Canary Islands, Spain | |
|
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| Abstract: |
| Throughout the shores of the world,a confluence of different sources of pollution is common,e.g.,through outlets releasing brine,industrial,and domestic sewage.In this study,we assessed whether a combined disposal of domestic sewage and brine altered the patterns of abundance and assemblage structure of subtidal macrofauna inhabiting sandy seabeds on the south coast of Gran Canaria(Canary Islands,NE Atlantic Ocean).Samples were collected in two surveys(May 2008 and January 2009)at three distances(0,15,and 30 m)away from the discharge point.Macrofaunal abundances showed different patterns with varying proximity from the disposal point in the two surveys.In May 2008,lower abundances were observed at 0 m(53.89±46.82 ind.)than at 15 m(120±91.7 ind.)and 30 m(283.89±189.33 ind.)away from the disposal point.In January 2009,however,higher abundances were observed at 0 m(131.33±58.69 ind.)than at 30 m(100±24.44 ind.)and 15 m(84.78±58.39 ind.)away from the disposal point.Significant differences in macrofaunal assemblage structure were found with varying proximity from the discharge point in both surveys.The effect of proximity from the disposal point was confounded by changes in sedimentary composition between surveys,which contributed to explain differences in macrofaunal abundances and assemblage structure with varying proximity from the discharge point.As a result,confounding drivers of macrofaunal assemblage structure,here,changes in sediment composition,accounted for changes in macrofaunal abundances and assemblage structure with varying proximity from a combined disposal point of brine and sewage. |
| 中文摘要: |
| Throughout the shores of the world,a confluence of different sources of pollution is common,e.g.,through outlets releasing brine,industrial,and domestic sewage.In this study,we assessed whether a combined disposal of domestic sewage and brine altered the patterns of abundance and assemblage structure of subtidal macrofauna inhabiting sandy seabeds on the south coast of Gran Canaria(Canary Islands,NE Atlantic Ocean).Samples were collected in two surveys(May 2008 and January 2009)at three distances(0,15,and 30 m)away from the discharge point.Macrofaunal abundances showed different patterns with varying proximity from the disposal point in the two surveys.In May 2008,lower abundances were observed at 0 m(53.89±46.82 ind.)than at 15 m(120±91.7 ind.)and 30 m(283.89±189.33 ind.)away from the disposal point.In January 2009,however,higher abundances were observed at 0 m(131.33±58.69 ind.)than at 30 m(100±24.44 ind.)and 15 m(84.78±58.39 ind.)away from the disposal point.Significant differences in macrofaunal assemblage structure were found with varying proximity from the discharge point in both surveys.The effect of proximity from the disposal point was confounded by changes in sedimentary composition between surveys,which contributed to explain differences in macrofaunal abundances and assemblage structure with varying proximity from the discharge point.As a result,confounding drivers of macrofaunal assemblage structure,here,changes in sediment composition,accounted for changes in macrofaunal abundances and assemblage structure with varying proximity from a combined disposal point of brine and sewage. |
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