First record of the North American black bullhead Ameiurus melas (Rafinesque, 1820) in the Guadalquivir Estuary (Southern Spain)

García‐de‐Lomas, Juan; Dana, Elías D.; López‐Santiago, J.; González, Rubén; Ceballos, Guillermo; Ortega, F. Javier

doi:10.3391/ai.2009.4.4.23

Cited by 5 publications

(4 citation statements)

References 15 publications

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“…Ameiurus nebulosus was only detected at two of the 11 habitats, at the Szikra Backwater ( Table 2 , Line 11) and at Vaja Lake ( Table 2 , Line 10), where the two species (two populations) co-existed, despite the fact that it was the most eurytopic species before the second introduction of Ameiurus melas in the 1980s ( Harka & Pintér, 1990 ; Wilhelm, 1999 ). The results confirm the hypothesis that Ameiurus melas has been spreading for decades and has gradually supplanted Ameiurus nebulosus in the natural waters of both Hungary and Europe ( Elvira, 1984 ; Harka, 1997 ; Wilhelm, 1999 ; Koščo et al, 2000 ; Gante & Santos, 2002 ; Popa et al, 2006 ; Garcia-De-Lomas et al, 2009 ; Lusk, Luskova & Hanel, 2010 ; Nowak et al, 2010 ; Movchan, Talabishka & Velikopolskiy, 2014 ). As a note of caution, it must be mentioned that most descriptions of this spreading are based on phenotypic species identification ( Harka & Pintér, 1990 ; Rutkayová et al, 2013 ).…”

Section: Discussionsupporting

confidence: 83%

“…Until now, Ameiurus nebulosus has been detected in 23 European countries, whereas Ameiurus melas in 18 of those countries so far, but it continues to spread. The first specimens were noticed in Romania in 1997 ( Wilhelm, 1998 ), in Slovakia in 1999 ( Koščo et al, 2000 ), in Portugal in 2002 ( Gante & Santos, 2002 ), in the Czech Republic in 2003 ( Lusk, Luskova & Hanel, 2010 ), in new waters of Serbia in 2005 ( Cvijanović, Lenhardt & Hegediš, 2005 ) and in the Iberian Peninsula ( Garcia-De-Lomas et al, 2009 ). It was found in Poland in 2007, although it had probably been introduced into the country already in the late 19th century ( Nowak et al, 2010 ), while the already present Ameiurus nebulosus continued to spread farther north ( Kapusta et al, 2010 ).…”

Section: Introductionmentioning

confidence: 99%

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Species-specific markers provide molecular genetic evidence for natural introgression of bullhead catfishes in Hungary

Béres

Sipos

Müller

et al. 2017

PeerJ

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Since three bullhead catfish species were introduced to Europe in the late 19th century, they have spread to most European countries. In Hungary, the brown bullhead (Ameiurus nebulosus) was more widespread in the 1970s–1980s, but the black bullhead (Ameiurus melas) has gradually supplanted since their second introduction in 1980. The introgressive hybridization of the two species has been presumed based on morphological examinations, but it has not previously been supported by genetic evidence. In this study, 11 different Hungarian habitats were screened with a new species-specific nuclear genetic, duplex PCR based, marker system to distinguish the introduced catfish species, Ameiurus nebulosus, Ameiurus melas, and Ameiurus natalis, as well as the hybrids of the first two. More than 460 specimens were analyzed using the above markers and additional mitochondrial sequence analyses were also conducted on >25% of the individuals from each habitat sampled. The results showed that only 7.9% of the specimens from two habitats belonged to Ameiurus nebulosus, and 92.1% were classified as Ameiurus melas of all habitats, whereas the presence of Ameiurus natalis was not detected. Two specimens (>0.4%) showed the presence of both nuclear genomes and they were identified as hybrids of Ameiurus melas and Ameiurus nebulosus. An additional two individuals showed contradicting results from the nuclear and mitochondrial assays as a sign of a possible footprint of introgressive hybridization that might have happened two or more generations before. Surprisingly, the level of hybridization was much smaller than expected based on the analyses of the North American continent’s indigenous stock from the hybrid zones. This phenomenon has been observed in several invasive fish species and it is regarded as an added level of complexity in the management of their rapid adaptation.

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Section: Discussionsupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Species-specific markers provide molecular genetic evidence for natural introgression of bullhead catfishes in Hungary

Béres

Sipos

Müller

et al. 2017

PeerJ

View full text Add to dashboard Cite

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“…(Table 4). Some of these species have been well established in the basin and surrounding areas for many years (e.g., mummichog, tench) [44,49], whereas others were recently introduced (e.g., black bullhead, European catfish) [50,51]. The probable historical presence of the Adriatic sturgeon has been a matter of debate, leading to several studies to either confirm or reject its occurrence [52][53][54], but there is still no consensus within the scientific community.…”

Section: Bibliographic-recorded Speciesmentioning

confidence: 99%

“…Fourteen of the detected introduced species (70% of the total) are now well established in the basin and/or are in the process of expansion. Four of these have colonized the basin within the last ten years: (1) bleak [91] and (2) black bullhead [50] are common in the middle and lower stretch of the basin, and finally (3) European catfish, the latest species detected in the basin [51], which involves a serious threat to regional wildlife [92]. The latter's preference for slow waters may favor its proliferation in the lowest sections of the basin, including the nature sanctuary of Doñana National Park and surrounding areas, with serious threats to this unique ecosystem.…”

Section: Introduced Speciesmentioning

confidence: 99%

Freshwater Fish Biodiversity in a Large Mediterranean Basin (Guadalquivir River, S Spain): Patterns, Threats, Status and Conservation

Sáez-Gómez

Prenda

2022

Diversity

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The Guadalquivir River Basin is one of the largest in the Iberian Peninsula and has a remarkable freshwater biodiversity. Although many studies on hydrological regimes or water quality have been conducted in this basin the biodiversity of freshwater fish, as well as their distribution and conservation status, has never been globally addressed as in other Iberian basins. In this context, we synthesized information on freshwater fish using field procedures and a bibliographic search. Fish distribution patterns at different spatial scales and general environmental conditions were analyzed as well as the conservation status of the fish community. We documented the presence of 40 species (20 native and 20 exotic) in the basin during the 20th century until today. However, we only captured 18 species during the field sampling, with a prevalence for any native species of less than 23% (except Luciobarbus sclateri). The highest species richness was found in mid reaches, while the lower reaches had very low diversity values. Around 50% of species are threatened; according to the IUCN, several species are declining at an alarming rate and others are probably extinct and/or their current status is unknown. Human disturbances during the last few decades have caused serious changes in fish distribution and consequently to their conservation status. Hydrological alterations, intensive agriculture and introduced species are probably the principal reasons for Guadalquivir’s ichthyofauna imperilment. Our study indicates an urgent and real need to identify important areas for fish conservation to guarantee a minimum fish biodiversity conservation over the long term, as well as effective strategies for fish recovery where it still is possible.

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Effects of water salinity in an aquaponic system with rainbow trout (Oncorhynchus mykiss), black bullhead catfish (Ameiurus melas), Swiss chard (Beta vulgaris), and cherry tomato (Solanum lycopersicum)

Bordignon,

Birolo,

Fanizza

et al. 2024

Aquaculture

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First record of the North American black bullhead Ameiurus melas (Rafinesque, 1820) in the Guadalquivir Estuary (Southern Spain)

Cited by 5 publications

References 15 publications

Species-specific markers provide molecular genetic evidence for natural introgression of bullhead catfishes in Hungary

Species-specific markers provide molecular genetic evidence for natural introgression of bullhead catfishes in Hungary

Freshwater Fish Biodiversity in a Large Mediterranean Basin (Guadalquivir River, S Spain): Patterns, Threats, Status and Conservation

Effects of water salinity in an aquaponic system with rainbow trout (Oncorhynchus mykiss), black bullhead catfish (Ameiurus melas), Swiss chard (Beta vulgaris), and cherry tomato (Solanum lycopersicum)

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