Molecular Data Confirm the Occurrence of the Allochthonous Gambusia holbrooki (Pisces: Poeciliidae) in Sicily and the Maltese Archipelago

Diversity, Год журнала: 2025, Номер 17(1), С. 48 - 48

Опубликована: Янв. 13, 2025

A major threat to biodiversity is represented by Invasive Alien Species (IAS), particularly on freshwater ecosystems, which are already heavily altered human activities. Two of the most pernicious IAS eastern and western mosquitofish, i.e., Gambusia holbrooki G. affinis. These two poeciliids morphologically very close each other, soon after their formal description, was considered a subspecies In following years, several studies proved that these entities belonged different species; nevertheless, it only at end 1990s separate taxonomic status re-established. 1920s 1930s, both affinis were asynchronously introduced from United States into Europe subsequently translocated globally as biocontrol agents malaria vector (i.e., larvae Anopheles mosquitoes), with dramatic consequences for inland water native fauna. However, due uncertainties nomenclatural instability, there doubts about species had been in regions. The first available molecular confirmed occurrence Europe, but no evidence confirming found. Despite this, some records report mosquitofish Italy Malta. Considering negative effects has biota, paramount importance know precise biological diversity non-native better implement environmental management strategies properly preserve already-fragile waterbodies. Therefore, check possible Malta, we conducted extensive sampling Sicily (Italy) Maltese archipelago, aiming verify identity populations occurring study area. Based sequences mitochondrial cytochrome b gene, consistently observed investigated area, finding, almost exclusively, common haplotype known whole invaded range “HOL1”).

Язык: Английский

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Habitat and diet interactions in a lowland temperate river suggests no direct impact of non-native monkey goby (Neogobius fluviatilis) on native spined loach (Cobitis taenia)

NeoBiota, Год журнала: 2025, Номер 97, С. 237 - 256

Опубликована: Фев. 19, 2025

Non-native species can negatively impact native ecosystems, but their introduction does not always lead to major ecological changes. This study examines interactions between the non-native monkey goby ( Neogobius fluviatilis ) and spined loach Cobitis taenia through field observations controlled laboratory experiments. We assessed microhabitat use, dietary similarities, behavioral two species. Field results revealed overlapping microhabitats dominated by coarse sand, with no significant displacement of goby. Laboratory trials further supported these findings, showing competitive interference in habitat selection, both co-occupying preferred substrates (coarse sand). Diet analysis indicated limited trophic overlap (17%), suggesting resource partitioning rather than direct competition. The show evidence that exerts harmful effects on river studied. Instead, our highlights potential for coexistence, emphasizing need nuanced approaches assessing impacts However, it should also be noted are time space-limited, indirect and/or long-term effects, captured this study, may exist. Current research contributes a broader understanding complex biotic resident

Язык: Английский

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Decadal‐scale regional variability in monitoring efforts significantly influences fish diversity trends in the Euphrates and Tigris catchments, Türkiye

Aquatic Conservation Marine and Freshwater Ecosystems, Год журнала: 2024, Номер 34(5)

Опубликована: Май 1, 2024

Abstract This study investigates the temporal and spatial distribution of species richness in Turkish portions Euphrates Tigris catchments Mesopotamia, aiming to identify areas lacking sufficient research inform future conservation management efforts. Data from 153 fish assemblages catchment 100 catchment, spanning 1941 2022, were analysed using a combination analytical occurrence, space‐for‐time mixed effect models. Results indicate an increase reported over time, attributed heightened sampling efforts, reveal significant differences influenced by uneven environmental suitability. Identification with insufficient research, potential undetected biodiversity losses highlights need for improved assessments prevent unnoticed loss ecosystem degradation. Our results emphasize importance accurate effective interventions these catchments.

Язык: Английский

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Prioritising non-native and translocated species for management using the Dispersal-Origin-Status-Impact (DOSI) scheme

Опубликована: Июнь 14, 2024

Assessing the actual and potential impacts of non-native species is crucial for prioritizing their management. Traditional assessments often occur at level, potentially overlooking differences among populations. The recently developed Dispersal-Origin-Status-Impact (DOSI) assessment scheme addresses this by treating biological invasions as population-level phenomena, incorporating complexities affecting populations species. We applied DOSI to translocated reported in a shallow alluvial lake (Lake Gala) reservoir (Sığırcı Reservoir) north-western Türkiye. identified 12 established across both ecosystems, including nine fish, two invertebrates, one mammal. Most received High Medium-High priority rankings, sites. In contrast, Medium Low rankings were less common, each occurring once Lake Gala four times Sığırcı Reservoir. These high-priority warrant targeted management interventions due status, autonomous spread, observed negative impacts. By enabling more nuanced context-specific approach, facilitates development strategies managing posing highest risks. Moreover, DOSI’s focus on within ecosystems highly relevant stakeholders, decision-makers, environmental managers, it provides detailed precise unit evaluation.

Язык: Английский

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The critical need for long-term biomonitoring: The case study of a major river system in Anatolia

Environmental Monitoring and Assessment, Год журнала: 2024, Номер 196(11)

Опубликована: Ноя. 1, 2024

Язык: Английский

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Testing the Dispersal-Origin-Status-Impact (DOSI) scheme to prioritise non-native and translocated species management

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Дек. 28, 2024

Assessing actual and potential impacts of non-native species is necessary for prioritising their management. Traditional assessments often occur at the level, potentially overlooking differences among populations. The recently developed Dispersal-Origin-Status-Impact (DOSI) assessment scheme addresses this by treating biological invasions as population-level phenomena, incorporating complexities affecting populations species. We applied DOSI to translocated reported in a shallow alluvial lake (Lake Gala) reservoir (Sığırcı Reservoir) north-western Türkiye. identified 12 established across both ecosystems, including nine fish, two invertebrates, one mammal. Most received High Medium–High priority rankings, sites. In contrast, Medium Low rankings were less common, each occurring once Lake Gala four times Sığırcı Reservoir. These high-priority warrant targeted management interventions due status, autonomous spread, observed negative impacts. By enabling more nuanced context-specific approach, facilitates development strategies managing posing highest risks. Moreover, DOSI's focus on within ecosystems highly relevant stakeholders, decision-makers, environmental managers, because it provides detailed precise unit evaluation.

Язык: Английский

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An Updated Assessment of Fishes in Lake Çıldır: A Comprehensive Study and Conservation Recommendations

Journal of Anatolian Environmental and Animal Sciences, Год журнала: 2024, Номер 9(3), С. 464 - 471

Опубликована: Сен. 13, 2024

This study aims to identify the current fish species of Lake Çıldır. Fish sampling was conducted at three stations with high representativeness lake, in May 2024, using gill nets assistance local fishermen. The results and reviewing literature presence 17 (Acanthobrama marmid, Alburnoides eichwaldii, Alburnus filippii, Barbus cyri, Capoeta capoeta, Carassius carassius, C. gibelio, Chondrostoma Cyprinus carpio (both native introduced forms), Leuciscus aspius, Luciobarbus capito, L. mursa, Oncorhynchus mykiss, Oxynoemacheilus brandtii, Pseudorasbora parva, Salmo murathani Squalius turcicus) were revealed lake. Çıldır is a significant freshwater ecosystem considerable ecological, economic, cultural importance for Anatolia. However, given various threats urgent effective measures are needed its conservation. presents updated fauna discusses recommendations health conservation By compiling existing information on lake's ecosystem, highlight biodiversity lake environmental factors impacting it.

Язык: Английский

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Freshwater non-native species' population dynamics are synchronized with functionally similar natives

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Дек. 4, 2024

Invasive non-native fish species can profoundly disrupt ecosystems. In invasion ecology, using the functional similarity with native to help predict demographic rates of and infer ecological processes underlying it remains largely unexplored. Utilizing a comprehensive analysis 2,903 pairs across 153 sampling sites in rivers distributed different continents, we evaluated interspecific synchrony patterns among populations (response variable) explored their relationship phylogenetic dissimilarities linear mixed model. Our results indicate that exhibit higher share similar morphological traits. This finding corroborates our hypothesis co-occurring are more functionally synchronized highlights importance environmental filtering significantly shaping population dynamics between communities coexisting species. Compensatory was not important explaining coexistence We highlight potential widespread increasing synchronous consequently decreasing community stability. addition, life history distances could observed. By elucidating which type (ecological, history, morphological, phylogenetic) mechanisms facilitate species, this research underscores implications long term guide conservation efforts. Understanding these at level temporal is essential for preserving biodiversity face ongoing changes.

Язык: Английский

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