Fish assemblages under climate change in Lithuanian rivers

Kriaučiūnienė, Jūratė; Virbickas, Tomas; Šarauskienė, Diana; Jakimavičius, Darius; Kažys, Justas; Bukantis, Arūnas; Kesminas, Vytautas; Povilaitis, Arvydas; Dainys, Justas; Akstinas, Vytautas; Jurgelėnaitė, Aldona; Meilutytė-Lukauskienė, Diana; A., Tomkevičienė

doi:10.1016/j.scitotenv.2019.01.142

Cited by 15 publications

(13 citation statements)

References 55 publications

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“…Our results showed that the highest abundance and diversity of fish species collected in June, July and August, which may be due to a lesser water current in the study area during these dry season months. According to Kriaučiūnienė et al 22 the abundance of fish species in rivers can be affected by river discharge. However, future alterations in river water temperature will have a significantly larger influence on the abundance of fish than river discharge.…”

Section: Discussionmentioning

confidence: 99%

Diversity and distribution of fish fauna of upstream and downstream areas at Koto Panjang Reservoir, Riau Province, Indonesia

et al. 2020

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Background: The capture fishery sectors in the river and reservoir play an important role in the Indonesian economy through increased income and diversification of livelihoods. The present study was conducted to ascertain fish diversity and their distribution pattern in the upstream and downstream areas of Koto Panjang Reservoir, Riau Province-Indonesia. Methods: Fish samples were collected for a period of 12 months using a variety of fish nets at four sites; Koto Mesjid (KM) and Batu Bersurat (BB), located in the upstream area of Koto Panjang Reservoir and Rantau Berangin (RB) and Kuok (KK), located in the downstream area of Koto Panjang Reservoir. Data obtained were analyzed using standard taxonomic keys based on morphometric characters. Results: A total of 44 species belonging 19 families and 33 genera were recorded in the study area. Alpha diversity indices showed that fish diversity in this area was quite high (Shannon’s index = 2.10 and Simpson-D = 0.21) and evenness was low (evenness H/S =0.19). The ﬁsh in KM and BB sites (upstream) were from eight and 11 families, respectively. In RB and KK sites (downstream), fish were from 16 and 15 families, respectively. In KM, BB, RB and KK sites, the dominant family was Cyprinidae, comprising 33.45%, 50.95%, 43.04% and 39.35% of all fish caught at each site, respectively. Exotic species, especially Nile tilapia, were 20.15%, 14.11%, 5.62%, and 5.34%, respectively. Some differences were also noted between the upstream and downstream reservoirs, with a slight increase in exotic species in the upstream reservoir over the study period (from 11.39% vs. 34.66%), corresponding to decrease of native species (from 88.61% vs. 65.34%). Conclusions: The diversity and distribution of fish fauna were varied in upstream and downstream areas of Koto Panjang Reservoir. The exotic species were found to be dominant in the upstream reservoir areas.

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Section: Discussionmentioning

confidence: 99%

Diversity and distribution of fish fauna of upstream and downstream areas at Koto Panjang Reservoir, Riau Province, Indonesia

et al. 2020

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show abstract

“…Our results showed that the highest abundance and diversity of fish species collected in June, July and August, which may be due to a lesser water current in the study area during these dry season months. According to Kriaučiūnienė et al 21 the abundance of fish species in rivers can be affected by river discharge. However, future alterations in river water temperature will have a significantly larger influence on the abundance of fish than river discharge.…”

Section: Discussionmentioning

confidence: 99%

Diversity and distribution of fish fauna of upstream and downstream areas at Koto Panjang Reservoir, Riau Province, Indonesia

et al. 2019

View full text Add to dashboard Cite

The capture fishery sectors in the river and reservoir play an Background important role in the Indonesian economy through increased income and diversification of livelihoods. The present study was conducted to ascertain fish diversity and their distribution pattern in the upstream and downstream areas of Koto Panjang Reservoir, Riau Province-Indonesia.: Fish samples were collected for a period of 12 months using a Methods variety of fish nets at four sites; Koto Mesjid (KM) and Batu Bersurat (BB), located in the upstream area of Koto Panjang Reservoir and Rantau Berangin (RB) and Kuok (KK), located in the downstream area of Koto Panjang Reservoir. Data obtained were analyzed using standard taxonomic keys based on morphometric characters.: A total of 44 species belonging 19 families and 33 genera were Results recorded in the study area. Alpha diversity indices showed that fish diversity in this area was quite high (Shannon's index = 2.10 and Simpson-D = 0.21) and evenness was low (evenness H/S =0.19). The fish in KM and BB sites (upstream) were from eight and 11 families, respectively. In RB and KK sites (downstream), fish were from 16 and 15 families, respectively. In KM, BB, RB and KK sites, the dominant family was Cyprinidae, comprising 33.45%, 50.95%, 43.04% and 39.35% of all fish caught at each site, respectively. Exotic species, especially Nile tilapia, were 20.15%, 14.11%, 5.62%, and 5.34%, respectively. Some differences were also noted between the upstream and downstream reservoirs, with a slight increase in exotic species in the upstream reservoir over the study period (from 11.39% vs. 34.66%), corresponding to decrease of native species (from 88.61% vs. 65.34%).: The diversity and distribution of fish fauna were varied in Conclusions upstream and downstream areas of Koto Panjang Reservoir. The exotic species were found to be dominant in the upstream reservoir areas.

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“…In contrast, for the future, studies suggest that the significant rise in air temperatures and changes in precipitation patterns (with consequential but probably less pronounced changes in discharge) will be the main driver of vulnerability, i.e. susceptibility to being negatively affected by climate change (Pacifici et al, 2015), for riverine species (Jaric et al, 2019;Kriaučiūnienė et al, 2019;Reid et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Among all known freshwater fish species, one quarter faces extinction (Su et al, 2021). Fish species in river ecosystems react sensitively to alterations in discharge (Beatty et al, 2014;Rolls & Arthington, 2014;Ward et al, 2015;Xenopoulos & Lodge, 2006) and in temperature (Buisson et al, 2008;Buisson & Grenouillet, 2009;Comte et al, 2013;Kriaučiūnienė et al, 2019;Lyons et al, 2010). Globally riverine fish species suffered in the past mainly from anthropogenic discharge alterations (Böhm & Wetzel, 2010;Grill et al, 2019;Haidvogl et al, 2014;Hohensinner et al, 2004), while pronounced long-term temperature increases were only relatively recently observed (IPCC, 2017).…”

Section: Introductionmentioning

confidence: 99%

300 years of change for native fish species in the upper Danube River Basin – historical flow alterations versus future climate change

Friedrichs‐Manthey

Borgwardt

et al. 2021

Preprint

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River ecosystems belong to the most threatened ecosystems on Earth. Historical anthropogenic alterations have, and future climate change will further affect river ecosystems and the species therein. While many studies assess the potential effects of expected future changes on species, little is known about the severity of these changes compared to historical alterations. Here, we used a unique 300-year time series of hydrological and climate data to assess the vulnerability of 48 native fish species in the upper Danube River Basin. We calculated species-specific vulnerability estimates relative to the reference period (1970-2000) for the periods 1800-1830, 1900-1930, and 2070-2100, including two Representative Concentration Pathways (RCP 4.5 and 8.5) and identified the environmental drivers of vulnerability estimates. Models showed that future changes under RCP 4.5 would result in moderate species vulnerability compared to historical conditions, while under RCP 8.5, the vulnerability for all species increased substantially. In addition, species vulnerability was mainly driven by hydrology in the past and is likely to be driven by temperature in the future. Our results show that future climate change would alter environmental conditions for riverine fish species at a similar magnitude as historical anthropogenic hydrological river alterations have. Shedding light on such long-term historical and possible future anthropogenic alterations provides valuable insights for prioritising conservation actions for riverine fish species.

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Fish assemblages under climate change in Lithuanian rivers

Cited by 15 publications

References 55 publications

Diversity and distribution of fish fauna of upstream and downstream areas at Koto Panjang Reservoir, Riau Province, Indonesia

Diversity and distribution of fish fauna of upstream and downstream areas at Koto Panjang Reservoir, Riau Province, Indonesia

Diversity and distribution of fish fauna of upstream and downstream areas at Koto Panjang Reservoir, Riau Province, Indonesia

300 years of change for native fish species in the upper Danube River Basin – historical flow alterations versus future climate change

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