Quantifying the habitat and zoogeomorphic capabilities of spawning European barbel<scp><i>Barbus barbus</i></scp>, a lithophilous cyprinid

Roberts, Catherine Gutmann; Bašić, Tea; Britton, J. Robert; Rice, Stephen P.; Pledger, Andrew G.

doi:10.1002/rra.3573

Cited by 10 publications

(4 citation statements)

References 112 publications

(178 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is conceivable that males check for substrate quality before spawning events by breaking up the gravel with their tails, which has been described by Ahnelt and Keckeis (1994) as a pre‐spawning preparation in nase. Zoogeomorphic effects of spawning activity have also been reported for another lithophilic cyprinid, the European barbel (Gutmann Roberts, Bašić, Britton, Rice, & Pledger, 2020). This clearly demonstrates the value that assessing microhabitat use may have for future river management and restoration projects, as shown by Santos, Rivaes, Boavida, and Branco (2018).…”

Section: Discussionmentioning

confidence: 69%

Making up the bed: Gravel cleaning as a contribution to nase (Chondrostoma nasus L.) spawning and recruitment success

Nagel

Mueller

Pander

et al. 2020

Aquatic Conservation

View full text Add to dashboard Cite

1. Spawning substrate quality is a major factor influencing the early ontogeny of European nase (Chondrostoma nasus), a target species of conservation. 2. Analogous to findings from salmonids, restoration of spawning grounds was hypothesized to enhance spawning, development and thus recruitment success of nase, by improving the substrate quality, and subsequently spawning site use, egg infiltration and protection of larvae in the interstitial zones before emergence. These assumptions were tested using a comparative approach by cleaning 50% of the area of each spawning ground in two Bavarian rivers. 3. Substrate cleaning resulted in an immediate reduction of 70% fine sediment content with improvements still detectable 2 months later. Spawning nase used the restored areas of spawning grounds preferentially, which was evident in the number of spawning fish and the significantly higher number of eggs laid. 4. Infiltration of eggs into the interstitial zone was distinctly more successful in the opened interstices of the cleaned spawning substrate, where they were found down to a depth of 20 cm. The same was true for larvae, which could be found down to 30 cm and up to 13 days after hatching. Moreover, higher peaks in the drift density of emerging larvae from the restored spawning substrate were detected (2.5 compared with 1.7 larvae m −3 discharge for the River Mangfall and 0.3 compared with 0.03 larvae m −3 for the River Sims). 5. These results clearly indicate that gravel cleaning is a successful short-term restoration tool for nase spawning grounds. It is a quick, cheap and effective method for the conservation management of nase, which may also be applicable to other riverine species with a similiar ecology and incubation time, such as Barbus barbus, Squalius cephalus, Leuciscus leuciscus and Phoxinus phoxinus. This especially holds true if streams lack internal dynamics and suffer from high loads of fine sediment and colmation.

show abstract

Section: Discussionmentioning

confidence: 69%

Making up the bed: Gravel cleaning as a contribution to nase (Chondrostoma nasus L.) spawning and recruitment success

Nagel

Mueller

Pander

et al. 2020

Aquatic Conservation

View full text Add to dashboard Cite

show abstract

“…Moreover, hybrid vigour has been documented in a range of other animal and plant species (Burke and Arnold 2001 ; Pfennig et al 2007 ; Hovick and Whitney 2014 ). The increased size of barbel hybrids may enhance recruitment through a higher number of eggs being spawned (Philippart and Berrebi 1990 ; Meraner et al 2013 ; Gutmann Roberts et al 2020 ) compared to the smaller native purebreds. This, along with the related vigour of the introgressed progenies, potentially helps to explain the rapid expansion of hybridization in invaded population by B. barbus .…”

Section: Discussionmentioning

confidence: 99%

Biological and trophic consequences of genetic introgression between endemic and invasive Barbus fishes

et al. 2021

Self Cite

View full text Add to dashboard Cite

Genetic introgression with native species is recognized as a detrimental impact resulting from biological invasions involving taxonomically similar invaders. Whilst the underlying genetic mechanisms are increasingly understood, the ecological consequences of introgression are relatively less studied, despite their utility for increasing knowledge on how invasion impacts can manifest. Here, the ecological consequences of genetic introgression from an invasive congener were tested using the endemic barbel populations of central Italy, where the invader was the European barbel Barbus barbus. Four populations of native Barbus species (B. plebejus and B. tyberinus) were studied: two purebred and two completely introgressed with alien B. barbus. Across the four populations, differences in their biological traits (growth, body condition and population demographic structure) and trophic ecology (gut content analysis and stable isotope analysis) were tested. While all populations had similar body condition and were dominated by fish up to 2 years of age, the introgressed fish had substantially greater lengths at the same age, with maximum lengths 410–460 mm in hybrids versus 340–360 mm in native purebred barbel. The population characterized by the highest number of introgressed B. barbus alleles (81 %) had the largest trophic niche and a substantially lower trophic position than the other populations through its exploitation of a wider range of resources (e.g. small fishes and plants). These results attest that the genetic introgression of an invasive congener with native species can result in substantial ecological consequences, including the potential for cascading effects.

show abstract

“…Moreover, hybrid vigour has been documented in a range of other animal and plant species (Pfennig et al 2007;Hovick and Whitney 2014). The increased size of barbel hybrids may enhance recruitment through a higher number of eggs being spawned (Philippart and Berrebi 1990;Meraner et al 2013;Gutmann Roberts et al 2020) compared to the smaller native purebreds. This, along with the related vigour of the introgressed progenies, potentially helps to explain the rapid expansion of hybridization in invaded population by B. barbus.…”

Section: Discussionmentioning

confidence: 99%

Biological and Trophic Consequences of Genetic Introgression Between Endemic and Invasive Barbus Fishes

Santis

Quadroni

Britton

et al. 2021

Preprint

View full text Add to dashboard Cite

Genetic introgression with native species is recognized as a detrimental impact resulting from biological invasions involving taxonomically similar invaders. Whilst the underlying genetic mechanisms are increasingly understood, the ecological consequences of introgression are relatively less studied, despite their utility for increasing knowledge on how invasion impacts can manifest. Here, the ecological consequences of genetic introgression from an invasive congener were tested using the endemic barbel populations of central Italy, where the invader was the European barbel Barbus barbus. Four populations of native Barbus species (B. plebejus and B. tyberinus) were studied: two purebred and two completely introgressed with alien B. barbus. Across the four populations, differences in their biological traits (growth, body condition and population demographic structure) and trophic ecology (gut content analysis and stable isotope analysis) were tested. While all populations had similar body condition and were dominated by fish up to 2 years of age, the introgressed fish had substantially greater lengths at the same age, with maximum lengths 410–460 mm in hybrids versus 340–360 mm in native purebred barbel. The population characterized by the highest number of introgressed B. barbus alleles (81%) had the largest trophic niche and a substantially lower trophic position than the other populations through their exploitation of a wider range of resources (e.g. small fishes and plants). These results attest that the genetic introgression of an invasive congener with native species can results in substantial ecological consequences, including potential cascading effects.

show abstract

Quantifying the habitat and zoogeomorphic capabilities of spawning European barbelBarbus barbus, a lithophilous cyprinid

Cited by 10 publications

References 112 publications

Making up the bed: Gravel cleaning as a contribution to nase (Chondrostoma nasus L.) spawning and recruitment success

Making up the bed: Gravel cleaning as a contribution to nase (Chondrostoma nasus L.) spawning and recruitment success

Biological and trophic consequences of genetic introgression between endemic and invasive Barbus fishes

Biological and Trophic Consequences of Genetic Introgression Between Endemic and Invasive Barbus Fishes

Contact Info

Product

Resources

About