Vulnerability and Conservation of Freshwater Biodiversity

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Biodiversity and Functionality of Aquatic Ecosystems".

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 3400

Special Issue Editors

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Guest Editor
Forest Research Centre, School of Agriculture, University of Lisbon, Lisbon, Portugal
Interests: freshwater ecology; spatial ecology; empirical modelling; landscape connectivity; multiple stressors; ecosystem quality assessment
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Guest Editor
Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisbon, Portugal
Interests: riparian forests; macrophytes; ecosystem services; biogeography; functional ecology; adaptation to climate change; effects of land-use and stream flow regulation; indicators of ecological quality; weeds; invasive alien plants
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Hellenic Centre for Marine Research, Institute of Marine Biological Resources and Inland Waters, Anavissos, Greece
Interests: freshwater and coastal fish; birds; alien species; aquatic ecosystem management and restoration; river bioassessment and biodiversity monitoring; vegetation and landscape ecology; conservation and protected areas

Special Issue Information

Dear Colleagues,

Freshwater ecosystems—rivers, streams, lakes, ponds, and wetlands—are simultaneously hotspots of biodiversity and endangerment. Presently, general population trends of freshwater species show declines by far exceeding those of terrestrial species. The loss of freshwater species is often irreplaceable, due to a high degree of endemicity induced by isolation among basins. Aquatic flora (e.g., macrophytes, bryophytes, algae) and fauna (e.g., fish, invertebrates, amphibians) are affected by pollution, fragmentation, overexploration, invasive species. and by the ongoing climate change, among other stressors. The chief goals of conservation policies involve long-term protection of the least disturbed ecosystems and restoration of degraded ecosystems to healthier states. Networks of protected areas have focused on the terrestrial realm, largely failing to adequately represent the conservation needs of freshwater species. In addition, efforts to implement effective management of freshwater ecosystems have so far been very limited due to the complex interplay of a multitude of stressors. Acknowledging these important research topics, in this Special Issue we propose to improve knowledge to assess the vulnerability and optimize protection of aquatic systems from biodiversity loss. Studies focused on aquatic flora and fauna with special emphasis on the funcional component of biodiversity, habitat connectivity, invasive species, and global changes are especially welcome.

Dr. Pedro Segurado
Prof. Dr. Francisca Aguiar
Dr. Stamatis Zogaris
Guest Editors

Manuscript Submission Information

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  • aquatic flora
  • aquatic fauna
  • biodiversity
  • climate change
  • connectivity
  • ecosystem vulnerability
  • functional diversity
  • management
  • protected areas

Published Papers (1 paper)

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30 pages, 2826 KiB  
Assessing the Fisheries and Ecosystem Structure of the Largest Greek Lake (Lake Trichonis)
by Olga Petriki, Dimitrios K. Moutopoulos, Konstantinos Tsagarakis, Ioanna Tsionki, Georgia Papantoniou, Irene Mantzouni, Roberta Barbieri and Maria Th. Stoumboudi
Water 2021, 13(23), 3329; - 24 Nov 2021
Cited by 4 | Viewed by 2466
An Ecopath with Ecosim (EwE) modeling approach was used to explore the ecological structure of the largest lake in Greece (Lake Trichonis). Until the mid-1990s, the lake was receiving a high level of pollution and the fishing pressure was intense, while since the [...] Read more.
An Ecopath with Ecosim (EwE) modeling approach was used to explore the ecological structure of the largest lake in Greece (Lake Trichonis). Until the mid-1990s, the lake was receiving a high level of pollution and the fishing pressure was intense, while since the early 2000s, fisheries and other human pressures gradually declined. Nowadays, the lake’s fisheries mainly target Atherina boyeri due to the absence of market demand for the other fish species in the lake, resulting in a low overall fisheries pressure on the fish stocks. The model was built with data collected through: (a) field samplings, (b) in-depth targeted interviews of professional fishermen and (c) historical archive information. The model considered 22 functional groups, while fishing activities were represented by three classes according to the used gears. The outputs of the model revealed that the ecosystem is dominated by low trophic level species (also identified as keystone species), indicating the significance of bottom-up control in the regulation of food web processes. Ecological indicators depicted that the lake’s ecosystem is mature and resilient to external disturbances. The methodological approach used in this study was shown to be helpful for studies addressing ecosystem structure, in particular with limited data availability. Full article
(This article belongs to the Special Issue Vulnerability and Conservation of Freshwater Biodiversity)
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