Interactions between invasive crayfish and native river shrimp

Banha, Filipe; Anastácio, Pedro M.

doi:10.1051/kmae/2011033

Cited by 16 publications

(11 citation statements)

References 36 publications

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“…The finding that P. clarkii prefers pool areas with vegetation cover is in accordance with previous work (Aquiloni et al, 2005;Banha and Anastácio, 2011). Actually, P. clarkii is mostly a lowland aquatic species and needs the right type of sediment to build burrows (Correia and Ferreira, 1995), while P. leniusculus is highly adapted to living in mountain rivers, as observed in the Iberian Peninsula (Rallo and García-Arberas, 2002).…”

Section: Discussionsupporting

confidence: 90%

Indicators of movement and space use for two co-occurring invasive crayfish species

Anastácio

Banha

Capinha³

et al. 2015

Ecological Indicators

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a b s t r a c tRed swamp crayfish (Procambarus clarkii) and signal crayfish (Pacifastacus leniusculus) are two invasive freshwater species with a worldwide distribution. The objective of this work was to investigate how the two species move and use space in an area of recent coexistence. Simultaneously, we test the use of new tools and indices to describe their movement patterns. To accomplish this we performed a radiotracking program within a river-type habitat during two different periods (September/October 2010 and June/July 2013). We used spatial analysis tools to map crayfish radio-location data with and without accounting for the curvature of the river. To assess the consistency of the direction of movement and of the distances traveled by crayfish, two indices were developed. To assess the habitat preferences of each species we applied Ivlev's Electivity Index and the Standardized Forage Ratio. Movement of P. clarkii and P. leniusculus differed. The average detected movement was 8.8 m day −1 for P. clarkii and 17.5 m day −1 for P. leniusculus. However, crayfish behavior ranged from almost complete immobility -sometimes during several days -to large movements, in half a day, up to a maximum of 255 m for P. clarkii and 461 m for P. leniusculus. The proportion of upstream or downstream movements was independent of the species and both species displayed no preference for either direction. The indices of consistency of movement showed a large interindividual variation. Species and period (2010 or 2013) affected the mean daily distance traveled, maximum observed distance from location of release and percentage of observations under vegetation cover. The Ivlev's Electivity Index and the Standardized Forage Ratio presented similar results. P. clarkii showed a preference for pool areas with riparian vegetation cover while P. leniusculus preferred riffle and pool areas with riparian vegetation cover. Our work provided new and valuable data for modeling the active dispersal of these two problematic invaders in a context of coexistence.

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Section: Discussionsupporting

confidence: 90%

Indicators of movement and space use for two co-occurring invasive crayfish species

Anastácio

Banha

Capinha³

et al. 2015

Ecological Indicators

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“…Presented results were obtained according to several different statistical analyses applied in similar research: descriptive statistical analysis [21], one-way analysis of variance (ANOVA) [13,[22][23][24][25], and t-test analysis for independent samples. The post-hoc Scheffe test was applied for definition of difference significance between certain groups [14,26].…”

Section: Methodsmentioning

confidence: 99%

Statistical Analysis of Water Quality Parameters of the Drina River (West Serbia), 2004-11

Leščešen¹,

Pantelić²,

Dolinaj³

et al. 2015

Pol. J. Environ. Stud.

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Rational and preservation utilization of water resources represents one of the main problems of the 21 st century. Water as a resource is a valued quantity, quality, and by location, where the quality is a condition of the water system, expressed through physical-chemical, chemical, and biological indicators. The important aspects taken into consideration when examining the top-priority problems of water quality are economic influence, the influence on human health, influence on the ecosystem, and influence of the geographic area, as well as duration of the influence [1]. Changes in the physico-chemical characteristics of water quality are influenced not only by anthropogenic factors, but also by combined interactive natural processes such as hydrological conditions, topography and lithology, climate, precipitation inputs, catchment area, tectonic and edaphic factors, erosion, weathering of crustal materials and bedrock geology, in combination with environmental influence [2]. It should be also taken into account that the Republic of Serbia is striving toward membership within the EU, and reaching good water quality represents an important challenge [3]. The most important legal framework within the European Union (EU), which regulates water policies, is the Water Framework Directive (WFD) [4].River systems play an important role in the sustainable development of the whole environment, especially when Pol. J. Environ. Stud. Vol. 24, No. 2 (2015), [555][556][557][558][559][560][561] Original Research AbstractThe Drina River is the biggest tributary of the Sava River, created by the merger of the Tara and Piva rivers at Šćepan Polje. The Drina represents the border between Serbia and Bosnia and Herzegovina. Water quality index (WQI) is a numeric expression used to evaluate the quality of water bodies and make it more easily understood by managers. In this study, the water quality status and the spatial and temporal trends along the Drina were assessed through the application of seven WQI parameters, to an eight-year public database of environmental data . Water quality of the Drina is one of the significant factors taken into consideration in evaluation of sustainability of the development of this region and it is controlled by complex anthropogenic activities and natural factors. Values of pH grew steadily from CP1 to CP3, but on CP4 values of pH were lower (8.11) than on two previous control points (CP2 8.14 and CP3 8.16). O 2 saturation shows highest values at CP1 121.3%, while the lowest values were observed at CP3 101.8%. BOD 5 at all four CPs shows that water quality of the Drina can be classified as I class (< 2 mg/l). According to statistical data processing we can state that Drina water quality at all four control points allows for its exploitation.

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“…Ninety-eight shrimps (TL = 25.85 mm ± 4.22 SD) were placed into each of three different containers (density of 400 individuals/m 2 and 57 9 43 cm bottom area) with three different depths of water (5, 10 and 20 cm). These water depths were chosen because river shrimps occur in shallow waters (Banha & Anastácio, 2011) and ducks usually forage within the same depths. In fact mallard ducks normally do not dive deeper than 40 cm (Pöysä, 1983).…”

Section: Probability Of River Shrimp's Adhesion and Transportmentioning

confidence: 99%

Waterbird-mediated passive dispersal of river shrimp Athyaephyra desmaresti

Banha

Anastácio

2012

Hydrobiologia

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The river shrimp Athyaephyra desmaresti is a Mediterranean species which in recent years expanded its distribution, colonizing rivers of central Europe. The purpose of this study was to investigate the possibility of passive external dispersal of the river shrimp Athyaephyra desmaresti by waterfowl. We performed experiments testing shrimp desiccation survival, probability of attachment to waterfowl, and probability of successful transport. We found that in the laboratory 10% of the river shrimps can survive out of water for up to 90.1 min, but this period was reduced to 18.5 min under simulated bird flight conditions. Two different outdoor experiments simulating bird flight conditions indicated a 50% probability of successful transport on flight distances over 15 km. Our results using dead ducks show evidence that small, large or ovigerous river shrimps can attach to and be transported by ducks and that this capacity is affected by water depth. This study demonstrated that waterbird-mediated passive dispersal of river shrimps can occur and may be important for genetic flows between populations and for the colonization of new sites.

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Interactions between invasive crayfish and native river shrimp

Cited by 16 publications

References 36 publications

Indicators of movement and space use for two co-occurring invasive crayfish species

Indicators of movement and space use for two co-occurring invasive crayfish species

Statistical Analysis of Water Quality Parameters of the Drina River (West Serbia), 2004-11

Waterbird-mediated passive dispersal of river shrimp Athyaephyra desmaresti

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