Titlebook: Aquatic Biodiversity; A Celebratory Volume Koen Martens Book 2003 Springer Science+Business Media Dordrecht 2003 Biodiversity.Biomonitoring

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https://doi.org/10.1007/978-1-4842-2394-9phic distance among sites, between 0.05 and 300 km. Isofemale lines within sites showed little or no reproductive isolation, but nearly complete isolation among sites. Reproductive isolation was also independent of morphology. These results suggest that the . population at each site could be conside

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https://doi.org/10.1007/978-3-531-93199-9ar shifts in the structure of the guilds. Flow preference and reproduction ecology of river fish are closely linked. The proportion of rheophilic species in the fish community decreases downstream, and the proportions of limnophilic and eurytopic species increase. Lithophilic and psammophilic spawne

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Spezielle pathologische Anatomie is an increased dilution of settling organic particles and their nutrients, resulting in a decrease in BP per litre. Conversely, when BP is expressed in areal units (m.), hypolimnetic production increases with increasing hypolimnetic thickness. Water column thickness is a master variable, which tog

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J. J. López-Ibor,M. Linden,J. Gibertea that may need restoration; (2) an area that had a high conservation value and; (3) a region that was identified as having significant biodiversity loss but with high potential to respond to rehabilitation and become a biodiversity hotspot. These examples highlight the use of the new framework as

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https://doi.org/10.1007/978-3-642-59627-8 Historically the social value of recreational fishing was usually more important than conserving biodiversity. Globalisation of alien fish species for sport is best illustrated by rainbow trout — now in 82 countries, and still spreading, along with the associated expensive angling gear, magazines a

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I. Iancu,P. N. Dannon,Y. Sasson,J. Zoharand, in some cases, watershed/reservoir relationships, and the impact of non-point and point sources of nutrients. Numerous studies have been dedicated to describing aquatic biota, its relationship with environmental factors, and the impacts of degradation/pollution/ eutrophication on biodiversity.

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