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The uselessness of cytochrome oxydase gene analysis for genetic identification of selected Gobiidae species from some European countries

Kiełpińska Jolanta, Czerniejewski Przemysław, Adamkowska Natalia, Uzunova Eliza

Journal of Water and Land Development

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2022

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Special Issue

8--14

EN

The family Gobiidae is the largest teleost family, consisting of more than 2,000 species in more than 200 genera. They have adapted to a wide range of habitats, inhabiting mostly marine and brackish waters. Recently invasive Ponto-Caspian gobies have caused significant changes to the structure of fish assemblage throughout the European waters. The aim of the study was to verify the possibility of identifying three species of the genus Gobiidae based on the analysis of the mitochondrial region of the cytochrome oxidase subunit 1 (COI) gene. 339 samples originated from seven countries and 17 different sites were investigated. Qualitative and quantitative assessment of the extracted DNA was conducted by measuring light absorbance and electrophoretic separation. Approximately 650-bp (base pairs) fragments were amplified from the 5' region of the mitochondrial COI with the PCR (polymerase chain reaction) reaction. Sequences of 652 bp were obtained and compared with reference sequences in the National Center for Biotechnology Information (NCBI). Based on the sequence analysis, we determined that in the analysed geographical regions, the goby preliminary identified morphologically as the round goby was represented by three species: round goby (Neogobius melanostomus), tubenose goby (Proterorhinus marmoratus), and monkey goby (Neogobius fluviatilis). The latter two are newly reported for their new habitats. Genetic characterisation of such populations offers the opportunity to assess their genetic stability, which provides agencies managing the aquatic environment in EU countries with a tool for revising the legislation, including regulations relevant for updating the status of native and invasive species in European waters.

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The role of abiotic and biotic factors in interspecific competition of Polish crayfish : comprehensive literature review

Wiśniewski Kamil, Szarmach Daniel, Poznańska-Kakareko Małgorzata

Oceanological and Hydrobiological Studies

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2020

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Vol. 49, No. 4

428--441

EN

Invasive species are those that have been transferred by humans out of their natural range. Native crayfish species in Polish waters include: Astacus astacus and Pontastacus leptodactylus, whereas invasive species are: Pacifastacus leniusculus, Faxonius limosus, Procambarus clarkii and Procambarus virginalis. The objective of this study was to determine how abiotic and biotic environmental factors contribute to interspecific competition of Polish crayfish based on the available literature. Abiotic factors affecting the interspecific competition include tolerance to extreme pH values, calcium ion content, temperature, oxygenation, water salinity, preferred substrate and the type of water bodies. Biotic factors are, inter alia, pathogens, food base, plant cover and interactions in the prey–predator system, as well as interactions between crayfish species. The most important abiotic factors are water temperature and oxygenation, while the most important biotic factor is the crayfish plague – a deadly disease for native species. Each invasive species has a different set of traits and adaptations that enable a successful invasion. However, a successful invasion of a given species is not determined by one, but many adaptations that coexist.

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Life in sympatry : coexistence of native Eurytemora affinis and invasive Eurytemora carolleeae in the Gulf of Finland (Baltic Sea)

Sukhikh Natalia, Souissi Anissa, Souissi Sami, Holl Anne-Catherine, Schizas Nikolaos V., Alekseev Victor

Oceanologia

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2019

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No. 61 (2)

227--238

EN

The invasion of exotic species into native ecosystems is becoming a crucial issue in global biology. Over the last ten years, at least 45 invasions of aquatic species have been reported in the eastern part of the Gulf of Finland; the majority of them were introduced through ballast water. Recently, invasion of the estuarine calanoid copepod Eurytemora carolleeae (Temoridae), originating from North America, has been reported in several European estuaries and particularly in the Gulf of Finland. This species is morphologically very similar to the native Eurytemora affinis, but it is easily discriminated by molecular markers. In this study, we monitored the distribution area of the invasive copepod species in European waters, as well as the population structure of (native) E. affinis and (invasive) E. carolleeae, from 2006 to 2018 in the Gulf of Finland. The population density of E. affinis was significantly higher, compared to E. carolleeae, during most of the study period. The only exception was Neva Bay in 2010, wherein the invasive species dominated possibly due to high temperatures and differences in the levels of fish predation. The reproductive performance of E. carolleeae was also higher than that of E. affinis. These results show different population dynamics between the two species. It was revealed that invasive E. carolleeae develops in some of the very same habitats as native E. affinis, thereby potentially becoming a significant component of the zooplankton in the studied area. Moreover, invader has the potential to displace native E. affinis.

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Gatunki rodzime w zieleni miast amerykańskich

Aniśko A., Czekalski M.

Zieleń Miejska

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2015

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Nr 2

41--43

PL

Miasto współczesne nie musi być miejscem, gdzie zdegradowane środowisko pozwala przeżyć tylko najbardziej tolerancyjnym, wszędobylskim gatunkom ruderalnym i inwazyjnym, a wraz z nimi najuboższym warstwom społecznym, które nie mogą przenieść się do zielonych przedmieść. Za jeden z najważniejszych czynników umożliwiających odrodzenie się i ozdrowienie podupadłych obszarów miejskich w Stanach Zjednoczonych uznaje się zieleń.

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Zdrowotność oraz zagrożenia drzew przyulicznych w centrum Opola

Gołąbek E., Sławiński J.

Inżynieria Ekologiczna

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2010

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Nr 23

7-13

EN

The publication presents an evaluation ofhealth status of roadside trees (growing between the road and the pavement) in the central part of the city of Opole. To assess the health condition of the trees the method proposed by 1. Duda was used, whereby the health of a tree is assessed in the twelve gradual scale. Among the surveyed trees, 13 species were found, of which the most abundant, constituting 63.8% of the examined group were: TWa cordata, Aesculus hippocastanum, Robinia pseudoacacia, Tilia platyphyllos. Eight native and five alien species in the domestic flora were distinguished. Among the studied objects definitely the largest share - 78.1 % had the trees in good health. The specimens in poor and very poor condition constituted 19.3% and 2.6% respectively. In the group representing the native species oftrees, 75.7% of the specimens in good condition, 21.0% in poor and 3.3% in very poor was noted, while among the alien species 81.4% were in good condition, 16.8% in bad and 1.8% in very poor. Among the factors negalively affecting the health status oftrees, mechanical damages, chloroses, pathogens and pests were identified.