Variation in external morphology between the native and invasive populations of the round goby, Neogobius melanostomus (Actinopterygii: Gobiidae)

Dashinov, Dimitriy; Czerniejewski, Przemysław; Balshine, Sigal; Synyshyn, Caitlyn; Tasheva‐Terzieva, Elena; Stefanov, Tihomir; Ivanova, Petya; Mandrak, Nicolas; Uzunova, E.

doi:10.1007/s00435-020-00480-7

Cited by 12 publications

(4 citation statements)

References 35 publications

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“…Such probes are commonly designed using simplified shapes of fish and do not account for the individual morphological characteristics of specific species. Variations in the morphology of fish have been shown to be directly related to swimming costs (Ohlberger et al, 2006), and several studies reported morphological adaptations in fish from riverine habitats (Dashinov et al, 2020; Franssen et al, 2013; Imre, 2002; Meyers & Belk, 2014). Thus, the force measurements accounted for the individual body shapes and provided a species‐oriented assessment of the flow field near a vertical slot.…”

Section: Discussionmentioning

confidence: 99%

Impact of hydraulic forces on the passage of round goby (Neogobius melanostomus), gudgeon (Gobio gobio) and bullhead (Cottus gobio) in a vertical slot fish pass

Wiegleb

Hirsch

Seidel

et al. 2022

Ecology of Freshwater Fish

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Every fish migrating upstream through vertical slot fish passes must swim through slots, where the resistance force of flowing water could affect the passage success. We measured the hydraulic force acting on the body of preserved benthic fish in a vertical slot at different water discharge rates (80 and 130 L/s) to compare the hydraulic burden individual fish species (round goby Neogobius melanostomus Pallas, 1814, gudgeon Gobio gobio L. and bullhead Cottus gobio L.) must overcome. The forces measured in three spatial axes were then compared to acoustic Doppler velocity measurements and the passage probability of 39–45 live fish per species. Passage probability reduction of 28.26% for round goby and 39.29% for bullhead was observed at the higher water discharge. Gudgeon showed increased numbers of passages and approaches when larger hydraulic forces were experienced at 130 L/s compared to the lower water discharge. Gudgeon experienced significantly lower hydraulic forces (mean 0.27 N ± 0.12 standard deviation) compared to round goby (mean 0.32 N ± 0.12 SD) and bullhead (0.35 N ± 0.14 SD). Potentially, the increased hydraulic forces at the higher water discharge contributed to the reduction in passages in round goby and bullhead. That gudgeon behaved differently from the other species illustrates how fish species deal differently with flowing water and the hydraulic forces experienced. Our approach provides a species‐oriented assessment of the flow field in ecologically relevant fish passes. These findings represent an important step towards the development of purposeful fish pass designs, which is essential for ecosystem‐oriented river connectivity.

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Section: Discussionmentioning

confidence: 99%

Impact of hydraulic forces on the passage of round goby (Neogobius melanostomus), gudgeon (Gobio gobio) and bullhead (Cottus gobio) in a vertical slot fish pass

Wiegleb

Hirsch

Seidel

et al. 2022

Ecology of Freshwater Fish

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show abstract

“…The parameters consistent with normal distribution were subjected to one-way ANOVA. For the parameters that were not normally distributed, difference in means between populations were assessed using ANOVA after testing for non-parametric Kruskal-Wallis ANOVA on ranks (Dashinov et al 2020). Similarly, T-test and non-parametric Mann-Whitney U test were used to compare whether the two sexes signi cantly different in the morphological parameters.…”

Section: Discussionmentioning

confidence: 99%

“…A cross-validation test was computed to assess the ability of variables to discriminate P. clarkii populations (Konan et al 2010;Freire et al 2017;Dashinov et al 2020). After the cross-validation procedure, there was 58.82% of both sexes of P. clarkii were correctly classi ed in their groups.…”

Section: Discussionmentioning

confidence: 99%

Analysis of the morphological characteristics and direction of morphology- based selective breeding of Procambarus clarkii

Wang

Yang

Shi

et al. 2022

Preprint

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In order to explore the breeding direction of morphological selection of Procambarus clarkii, the morphological characteristics of five P. clarkii basic populations from different regions in China were comprehensively analyzed by multivariate statistical analyses. The results showed that there were significant differences in most morphological parameters among populations and between sexes. In the discriminatory analysis, the most discriminant characteristics for distinguishing females among populations were body weight (BW), first abdominal segment width (FASW), third abdominal segment width (TASW) and third abdominal segment height (TASH), whereas for males, the characteristics were body weight (BW), carapace length (CL), carapace width (CW) and third abdominal segment width (TASW).The most significant variables of the differences between sexes were body weight (BW), third abdominal segment width (TASW) and double cheliped weight (DCW). This study would be beneficial to understanding the main morphological characteristics of P. clarkii, which could provide basic data of the collected germplasm resources and some reference for indicating the direction of P. clarkii morphology-based breeding. The germplasm resources with stronger abdomen, smaller carapace and smaller cheliped would be the selection targets, and all-female breeding would also be one of important breeding directions of for P. clarkii.

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“…The use of stepwise and canonical analysis is an effective method for grouping and distinguishing species and populations from different taxa [56–59]. Despite a significant degree of overlap in morphometric data (Figs 4 and 5), canonical discriminant analyses identified two main groups based on cyst morphometric measurements.…”

Section: Discussionmentioning

confidence: 99%

Occurrence and characterization of cyst nematode species (Globoderaspp.) associated with potato crops in Colombia

Vallejo

Rojas

Martínez

et al. 2020

Preprint

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Potato cyst nematodes (PCN) from the genus Globodera spp. cause major losses in potato ( Solanum tuberosum) industry worldwide. Despite their importance, at present little is known about the status of this plant pathogen in cultivated potatoes in Colombia. In this study, a total of 589 samples collected from 75 geographic localities from nine potato producing departments of Colombia were assayed for the presence of potato cyst nematodes. Fifty-seven percent of samples tested positive for PCN. All populations but one were identified as Globodera pallida, with conspicuous morphometric variation found among populations. Based on phylogenetic analysis of the internal transcribed spacer region (ITS1-5.8S-ITS2) of the rRNA gene and D2-D3 expansion segments of the 28S rRNA gene, G. pallida from Colombia formed a monophyletic group closely related to Peruvian populations, with the lowest average number of nucleotide substitutions per site ( Dxy = 0.002) and net nucleotide substitutions per site ( Da= 0.001), when compared to G. pallida populations from South, North America and Europe. A single sample formed a well-supported subclade along with G. rostochiensis and G. tabacum from Japan, USA and Argentina. To our knowledge this is the first comprehensive survey of Globodera populations from Colombia that includes morphological and genetic data. Our findings on species diversity and phylogenetic relationships of Globodera populations from Colombia may help elucidate the status and distribution of Globodera species, and lead to the development of accurate management strategies for the potato cyst nematodes.

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Variation in external morphology between the native and invasive populations of the round goby, Neogobius melanostomus (Actinopterygii: Gobiidae)

Cited by 12 publications

References 35 publications

Impact of hydraulic forces on the passage of round goby (Neogobius melanostomus), gudgeon (Gobio gobio) and bullhead (Cottus gobio) in a vertical slot fish pass

Impact of hydraulic forces on the passage of round goby (Neogobius melanostomus), gudgeon (Gobio gobio) and bullhead (Cottus gobio) in a vertical slot fish pass

Analysis of the morphological characteristics and direction of morphology- based selective breeding of Procambarus clarkii

Occurrence and characterization of cyst nematode species (Globoderaspp.) associated with potato crops in Colombia

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