Heterospecific sociability and foraging behaviour of an invasive livebearer fish DOI Creative Commons
Isabel Salazar‐Rueda, Sebastian Gomez‐Maldonado, Morelia Camacho‐Cervantes

et al.

Ecology Of Freshwater Fish, Journal Year: 2024, Volume and Issue: 33(3)

Published: May 6, 2024

Abstract Heterospecific sociability could enhance invasion success in social species since non‐natives usually belong to small founding populations during the early stages of invasion. The twospot livebearer ( Pseudoxiphophorus bimaculatus ) is native Central America and southern Mexico recently recognised as invasive Mexican Plateau, where it poses a threat species. Here, we evaluated towards either conspecific pair or shoal four fish with one possible compositions, all conspecifics two combined guppies, porthole livebearers twoline skiffias. In second experiment, foraging time, latency feed, first begin aggressive interactions were recorded under same conditions used body size included covariate both experiments. All focal spent significantly more time given shoals rather than available space aquarium. They showed higher tendency associate pairs. Larger associated more, regardless condition. Twospot fed livebearers, less guppies similarly Latency forage did not vary between conditions. involved when skiffias conspecifics. gain benefits from associating natives conspecifics, but other poeciliids. shoaling behaviour may are scarce while poeciliids lead increased competition. Further research needed on heterospecific better understand their behavioural role likelihood.

Language: Английский

Predicting invasiveness of freshwater fishes imported into North America: regional differences in models and outcomes DOI Creative Commons
Jennifer G. Howeth,

Sohaib Amjad,

Crysta A. Gantz

et al.

Biological Invasions, Journal Year: 2025, Volume and Issue: 27(4)

Published: March 22, 2025

Language: Английский

Citations

0
The role of invasive alien species as bioindicators for environmental pollution DOI Creative Commons
Paolo Pastorino, Giuseppe Esposito, Marino Prearo

et al.

Current Opinion in Environmental Science & Health, Journal Year: 2025, Volume and Issue: unknown, P. 100620 - 100620

Published: April 1, 2025

Language: Английский

Citations

0
Detecting Threatened Ichthyofauna in a Mediterranean Intensive Agricultural Landscape: From DNA Traces to Electrofishing DOI
Panagiota Xanthopoulou, Argyrios Sapounidis, Paraskevi Papadopoulou

et al.

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2025, Volume and Issue: 35(4)

Published: April 1, 2025

ABSTRACT Intensive agriculture and farming activities, industry, as well human settlement can seriously affect freshwater ecosystems the species they host. These disturbances have been previously monitored using traditional catch surveys. New methods, such environmental DNA (eDNA) metabarcoding, significantly improve biodiversity mapping by accessing rarely visited areas enhancing detection of rare invasive species. We conducted an eDNA survey in a complex river tributary system at Tenagi, Philippi that hosts approximately 12.5% Greek ichthyofauna. A primer pair targeting 12S rRNA was used to analyse samples from 30 sites. reference sequence database generated regional diversity monitoring endemic, native fishes. Results were compared with data collected electrofishing stations allowed access. Two three invasive, two translocated 10 detected their current known distribution both methods. Overall, metabarcoding being more sensitive, consistently than methods on single fieldwork expedition. Co‐occurrence also investigated for first time, revealing minor variations composition within fish communities. Stations intensive agricultural zones potentially high accumulation organic inorganic pollutants (Tributary D), exhibited lower number reads richness other tributaries Tenagi. Our results demonstrate need complementary use assess assemblages habitats, combined approach address reliability issues biases associated each method.

Language: Английский

Citations

0
Identifying potential emerging invasive non‐native species from the freshwater pet trade DOI Creative Commons
James W. E. Dickey, Chunlong Liu, Elizabeta Briski

et al.

People and Nature, Journal Year: 2023, Volume and Issue: 5(6), P. 1948 - 1961

Published: Sept. 11, 2023

Abstract An increasingly globalised world has facilitated the movement of non‐native species (NNS) via poorly regulated international pet trade. While focus is being placed on preventative action to combat invasive NNS—often cheaper and less difficult than management established populations—successful prevention requires controlling potential pathways obtaining baseline knowledge species' availability. Here we performed an in‐depth analysis freshwater trade as one major vector NNS, compiling its inventory deriving threats NNS release establishment in wild. With Germany our study region, surveyed stores, websites country's largest online classified portal, eBay Kleinanzeigen, recording taxa encountered. For each species, determined likelihood based availability price (cheaper and/or more readily available have been shown be greater risk), ecological niche breadth overlap with environmental conditions Germany. The survey revealed 669 which 651 were Looking at likelihood, stores proved cheaper. websites, there was a significant effect occurrence status (i.e. released, not native) price, released native significantly Species previously elsewhere demonstrated breadths overlaps between their source regions Germany; for Germany, positive relationship magnitude number documented occurrences. Finally, combined findings under ‘Release Risk’ metrics highlight most worthy prioritisation. We propose these proactive methods screening trade, can inform future policy direction intervention. Read free Plain Language Summary this article Journal blog.

Language: Английский

Citations

10
Chromosome-level genome assembly reveals adaptive evolution of the invasive Amazon sailfin catfish (Pterygoplichthys pardalis) DOI Creative Commons
Yunyun Lv, Yanping Li, Miao Fang

et al.

Communications Biology, Journal Year: 2025, Volume and Issue: 8(1)

Published: April 16, 2025

Language: Английский

Citations

0
Invasive non-native fish species in the Yangtze River: A looming ecological crisis and mitigation strategies DOI Creative Commons

Dawei Liu,

C.Y. Jim, Chunping Xie

et al.

Nature Conservation, Journal Year: 2025, Volume and Issue: 58, P. 261 - 271

Published: May 5, 2025

The Yangtze River is China’s essential ecological resource and a historically revered “mother river” intimately tied to her ancient civilization. In recent years, the river has faced escalating threats from non-native fish species introduced by anthropogenic activities, including prayer animal release, aquaculture escapes, deliberate pet abandonment. With low current population density, these exotic pose limited immediate risks. However, damage will be catastrophic in long run once they successfully establish large stable populations become invasive. To effectively address this challenge, comprehensive measures can applied, strengthening risk assessment, controlling reproduction transmission, suppressing new introductions, improving regulations policies, enhancing public education prevention awareness, multi-party cooperation. This study contributes insights into dynamics of invasive broader implications for freshwater ecosystem management reviewing knowledge.

Language: Английский

Citations

0
Phenotypic responses to piscivory in invasive gibel carp populations DOI
Ali Serhan Tarkan, Oğuzcan Mol, Sadi̇ Aksu

et al.

Aquatic Sciences, Journal Year: 2023, Volume and Issue: 85(3)

Published: May 22, 2023

Language: Английский

Citations

9
High trophic similarity between non-native common carp and gibel carp in Turkish freshwaters: Implications for management DOI Creative Commons
Sadi̇ Aksu, Özgür Emiroğlu, Paride Balzani

et al.

Aquaculture and Fisheries, Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 1, 2023

Although the detrimental ecological and economic effects of introducing freshwater fish species have been extensively documented, non-native fishes continue to be introduced in large numbers globally enhance fisheries aquaculture. In Turkey, stocking common carp Cyprinus carpio is practised provide food security for people job artisanal fishers, resulting a country-wide distribution. These stockings, however, increase risk accidental introductions led subsequent invasions gibel Carassius gibelio, invasive highly species. Here, we assessed growth types, body conditions trophic interactions via bulk carbon nitrogen stable isotope analysis both natural artificial water bodies Turkey. The results indicated that express similar types all waters ecologies. This leads substantial niche overlaps where they co-occur, with potential strong interspecific competition. Considering ongoing fishery enhancement, recommend specifically target these stockings has already become invasive. Our findings, indeed, suggest releases hamper populations by increasing competitive between two

Language: Английский

Citations

8
Contemporary Trends in the Spatial Extent of Common Riverine Fish Species in Australia’s Murray–Darling Basin DOI Creative Commons
Wayne Robinson, John D. Koehn, Mark Lintermans

et al.

Fishes, Journal Year: 2024, Volume and Issue: 9(6), P. 221 - 221

Published: June 12, 2024

As one of the world’s most regulated river basins, semi-arid Murray–Darling Basin (MDB) in south-eastern Australia is considered at high ecological risk, with substantial declines native fish populations already identified and climate change threats looming. This places great importance on collection use data to document population trends over large spatial extents, inform management decisions, provide baselines from which can be measured. We used two medium-term sets (10 MDB basin-wide surveys 2004–2022) covering 23 catchments 68 sub-catchments investigate distribution common riverine species entire basin scale. Fifteen were analysed for changes their contemporary range, whilst short-term identified, all showed no significant continuous trend study period. further extent relative historic records, bony herring golden perch occurring 78% 68% kilometres, respectively, whereas southern pygmy perch, northern blackfish, silver mountain galaxias, freshwater catfish estimated occur less than 10% extent. Six established non-native also very consistent years, suggesting that they are near available limits expansion invasion. effect sizes index as future studies, especially those aiming monitor status species, or new existing species.

Language: Английский

Citations

2
Non-native fishes occupy broader isotopic niche than native fishes in an impaired river system DOI
Denis Rocha da Silva, Débora Reis de Carvalho, Frederico Fernandes Ferreira

et al.

Hydrobiologia, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 18, 2024

Language: Английский

Citations

2