Abstract Although numerous pumping stations (PS) have been used by water managers for applications on rivers, canals and other bodies, their impact fish populations is poorly understood. This study investigates European eel, Anguilla anguilla (L.), mortality after natural downstream passage through a propeller pump two Archimedes screw pumps at PSs lowland in Belgium. Fyke nets were mounted permanently the outflow of during silver eel migration periods. Based condition injuries, maximum...

Abstract Eel, Anguilla anguilla (L.), mortality was studied in a Belgian lowland canal after downstream passage through large and small de Wit‐adapted Archimedes screw pump over 12‐month period. The hypothesis tested the minimisation of fish injuries with Wit adaptation. Simultaneously, migration Dutch pool orifice fishway alongside pumping station ( PS ) monitored. Nets were mounted on outflow pumps, cage placed fishway. Based condition sustained, assessed maximum rates ranged from 19 ± 4%...

Fish passing downstream through hydraulic structures and turbines may be exposed to an elevated risk of injury mortality. The majority live fish studies are single-species laboratory investigations field Kaplan turbines, with a limited number in Francis screw turbines. In addition these studies, the physical conditions during turbine passage can directly measured using passive sensors. this study, we investigate multispecies mortality large Archimedes hydrodynamic for bream (Abramis brama),...

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 439:213-222 (2011) - DOI: https://doi.org/10.3354/meps09325 Adjusted barrier management improve glass eel migration at an estuarine Ans M. Mouton*, Maarten Stevens, Tom Van den Neucker, David Buysse, Johan Coeck Research Institute for Nature and Forest (INBO), Kliniekstraat 25, 1070 Brussels, Belgium *Email:...

Red Lists are used to assess the extinction risk of species. Regional IUCN criteria were applied categorise 42 indigenous freshwater fish species in Flanders into List categories. As such, three assessed as Regionally Extinct, eight Critically Endangered, two Endangered and Vulnerable. A further five considered Near Threatened, 15 Least Concern one is Data Deficient. Five disappeared from Extinct category compared with previous (1988) a consequence improved water quality estuaries...

Abstract Due to a recruitment decline of more than 90% in 30 years, the European eel ( Anguilla anguilla L.) has been classified by IUCN as critically endangered. Although species studied intensively obtain knowledge improve management, studies about resident yellow stage are relatively scarce. In this study, 52 large female eels were tagged with acoustic transmitters Belgian polder system and tracked network 23 automatic listening stations. We both circadian seasonal movement patterns...

ABSTRACT Many fish species depend on migration for various parts of their life cycle. Well‐known examples include diadromous such as salmon and eels that need both fresh water salt to complete Migration also occurs within only water. In recent decades, anthropogenic pressures freshwater systems have increased greatly, resulted, among other effects, in drastic habitat fragmentation. Fishways been developed mitigate the resulting fragmentation, but these are not always effective. To improve...

Abstract Northern pike, E sox lucius , needs different habitats to survive and reproduce thus depends on the availability accessibility of these habitats. To efficiently manage information is needed its spatial temporal patterns migration. In this study, we investigated occurrence adult pike migration which environmental variables influenced From D ecember 2010, followed 15 for 1 year by use radio telemetry in R iver Y ser, a typical lowland river characterised anthropogenic impacts such as...

ABSTRACT For many years, navigable lowland rivers have been embanked artificially or suffered from substantial shipping wave action, leading to habitat degradation. Recently, riparian habitats were restored by creating foreshores and spawning grounds in the river Yser, a Flanders, Belgium. The aim of this paper was evaluate role these for nursery juvenile fish. To cover wide range anthropogenic disruption, four mesohabitat types selected compared, ranging semi‐natural over artificial...

Abstract Navigation in inland waterways is increasingly important worldwide and so inherently the construction use of navigation locks. However, impact locks on downstream migrating fish rarely documented. In Belgium, Albert Canal connecting Meuse River to Scheldt Estuary may offer migration opportunities for European eel ( Anguilla anguilla ) Atlantic salmon Salmo salar ), two critically endangered species. During their phase (respectively silver eels smolts), both species have pass five...

Abstract Recent developments in tracking technology resulted the mapping of various marine spawning migration routes European eel ( Anguilla anguilla ). However, North Sea have rarely been studied, despite many large rivers and hence potential growing habitat discharge into Sea. In this study, we present most comprehensive map to date with by silver eels document for first time successful through English Channel. Migration tracks were reconstructed 42 tagged Belgium 12 Germany. Additionally,...

Fish migration has severely been impacted by dam construction. Through the disruption of fish routes, freshwater communities have seen an incredible decline. Fishways, which constructed to mitigate problem, shown underperform. This is in part due navigation still being largely misunderstood. Recent developments tracking technology and modelling make it possible today track (aquatic) animals at very fine spatial (down one meter) temporal every second) scales. Hidden Markov models are...

Migration is a vital element of the life cycle many freshwater fish species but increasingly hampered globally by riverine barriers. Fish passes are common approach to enable migration past barriers often ineffective. More knowledge required on behaviour as they such habitat preferences. We evaluate selection two upstream migrating species, barbel Barbus barbus and grayling Thymallus thymallus, at hydropower plant in southern Germany, considering individual variation population trends. were...

Abstract The abundance/biomass comparison (ABC) method, proposed by Warwick (1986) for detecting pollution effects on marine macrobenthic communities, was tested distribution patterns of numbers and biomass among fish species in regulated non‐regulated lowland rivers Belgium. abundance the populations were determined electrofishing. sample sites represent a range physically disturbed watercourses, from natural meandering to heavily channelized reaches. Sites upstream downstream polluting...

This study presents a comprehensive analysis of the length-weight relationship, condition factors, and age Schizothorax eurystomus in Shakhimardan River basin Central Asia, along with comparative perspective to other species region. The found that S. exhibits positive allometric growth, which is consistent similar patterns observed this from Syr Darya basin. two analyzed factors showed mean values within normal range, indicating good feeding environmental conditions. However, significant...