1 The introduction of farmed trout (stocking) to support anglers’ catches is a well-established and widespread practice. Many fisheries rely upon it to remain viable for example reservoir trout fisheries that lack natural trout production. However, in waters with a natural population of trout, stocking of farmed fish can present risks to the wild population through inter-breeding and competition.

Applying the ecosystem services concept to conservation initiatives or in managing ecosystem services requires understanding how environmental impacts affect the ecology of key species or functional groups providing the services. We examined effects of river impoundments, one of the leading threats to freshwater biodiversity, on an important ecosystem service provided by large tropical rivers (...

The Kpong Headpond was the second created on the Volta River after Akosombo Dam, primarily as a source of hydroelectric power generation and potable water supply, and additionally, it has supported some fish production in Ghana since impoundment. The changes in fish community of the Kpong Headpond were studied to provide baseline information for strategies formulation to support the socio-econo...

The Aras reservoir, located in the north-west of Iran, plays an important role in fisheries, drinking and agricultural water supplies and recreational activities in the region. This study was performed to characterize the seasonal fluctuations of phytoplankton communities and their relationship with environmental factors in the Aras reservoir from August 2013 to May 2014. Sampling was carried o...

The influence of physico-chemical properties of Oyun Reservoir, Offa, Nigeria (a shallow tropical African reservoir) on its zooplankton composition and abundance were investigated at three stations for two years between January 2002 and December 2003. Diversity is not high: only three groups of zooplankton were found: Rotifera with eight genera; and Cladocera and Copepoda with three genera each...

Artificial reefs have barely been used in Neotropical reservoirs (about five studies in three reservoirs), despite their potential as a fishery management tool to create new habitats and also to understand fish ecology. We experimentally assessed how reef material (ceramic, concrete, and PVC) and time modulated fish colonization of artificial reefs deployed in Itaipu Reservoir, a large reservoi...

Address correspondence to: Claudio Baigún. IIB-INTECH, Camino de Circunvalación Laguna, Km 6, (7120) Chascomús, ARGENTINA. E-mail: [email protected] Received on March 15, 2005. Accepted on April 21, 2005. Cabra Corral reservoir is located in Salta Province and is the largest man-made lake in northern Argentina. As other reservoirs located in this area, it was stocked with pejerrey (Od...