Demography and substrate affinity of the round goby (Neogobius melanostomus) in Hamilton Harbour

Young, Jennifer A. M.; Marentette, Julie R.; Gross, C. L.; McDonald, James I.; Verma, Aikta; Marsh‐Rollo, Susan E.; Macdonald, P. D. M.; Earn, David J. D.; Balshine, Sigal

doi:10.1016/j.jglr.2009.11.001

Cited by 97 publications

(75 citation statements)

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“…Nonetheless, such a mechanism would still have sex-specific implications, as females typically mature a year earlier than males and are smaller at a given age than males (MacInnis and Corkum, 2000;Young et al, 2010). Additionally, body size is likely an important factor influencing male reproductive success, as large F1,22=2.83,P=0.11 TL: F1,22=2.76,P=0.11 n.s.…”

Section: Auditory Thresholdmentioning

confidence: 99%

“…Vocal behaviors have only been observed in male round gobies during the breeding season (Rollo et al, 2007), similar to what has been shown for other members of the Gobiidae (Tavolga, 1956;Lugli et al, 1997), indicating that acoustic communication is seasonally dynamic and linked to reproduction. Females arrive on the breeding grounds after males (Kotvun, 1980) and may retreat to deeper waters between spawning batches to avoid predation (Young et al, 2010). In playback experiments, females show a stronger propensity to approach acoustic stimuli than males (Rollo et al, 2007), which could indicate a female advantage in auditory function to aid in localizing vocalizing males.…”

Section: Introductionmentioning

confidence: 99%

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Condition-dependent auditory processing in the round goby (Neogobius melanostomus): links to sex, reproductive condition, and female estrogen levels.

Zeyl

Love

Higgs

2012

Journal of Experimental Biology

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SUMMARYNeural responses to sensory stimuli often differ between sexes, vary seasonally, and can be regulated by endocrine activity, but the ecological and physiological mechanisms driving such patterns are not well understood. The current study examined how auditory function in the round goby (Neogobius melanostomus), a vocal teleost, co-varied with sex, reproductive condition and female plasma 17β-estradiol level. Auditory evoked potentials were collected in response to tone pips (100-600Hz) and a natural round goby pulse vocalization. Additionally, saccule hair cell densities were compared across reproductive groups. Auditory threshold was evaluated in terms of pressure and particle acceleration, and response amplitude and onset latency were measured at 10dB above threshold. Relative to males, females displayed lower auditory thresholds in response to the natural vocalization and to tones at 300-600Hz, and had a higher density of saccule hair cells. The 17β-estradiol level was positively associated with amplitude and latency for the pulse stimulus and with both threshold and amplitude for tones at 100-200Hz in females. Relative to non-reproductive males, reproductive males exhibited longer response latencies at 100-200Hz. The results demonstrate sexual dimorphism in auditory function in a teleost fish as well as intra-sexual variation, partially based on hormone levels. The current research further identifies links between auditory function and reproductive behaviors in fishes and provides a finer-scaled analysis of how this behavior is reflected at the level of the sensory systems facilitating signal reception.

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Section: Auditory Thresholdmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Condition-dependent auditory processing in the round goby (Neogobius melanostomus): links to sex, reproductive condition, and female estrogen levels.

Zeyl

Love

Higgs

2012

Journal of Experimental Biology

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“…One of the latest occurrences of the species in new areas comes from Switzerland, River Rhine, the harbor of Kleinhüningen (Kalchhauser et al, 2013). Such an expansive dispersion of N. melanostomus is associated with the species' tolerance of various range of environmental conditions (Moskal'kova, 1996;Charlebois et al, 1997;Young et al, 2010), a wide range of diet and flexibility in feeding behaviour (Shemonaev and Kirilenko, 2009;Števove and Kováč, 2013), aggressive behaviour during reproduction period, high reproduction rate and parental care, larger body size compared with other benthic species (Charlebois et al, 1997;Jude, 1997), as well as flexibility in life-history traits (Gutowsky and Fox, 2012). Indeed, previous studies focused on invasive N. melanostomus have revealed that this species has the capability to generate forms with life-history traits that are different between its native populations and its non-native populations (MacInnis and Corkum, 2000;L'avrinčíková and Kováč, 2007;Kováč et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Different life-histories of native and invasiveNeogobius melanostomusand the possible role of phenotypic plasticity in the species’ invasion success

Hôrková

Kováč

2013

Knowl. Managt. Aquatic Ecosyst.

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Key-words:round goby, biological invasions, epigenesis, alternative ontogenies, reproductive parametersOne of the most successful invasive fish species with negative impacts is round goby Neogobius melanostomus that has spread from its original Ponto-Caspian area to west and central Europe and even to North America. Previous studies focused on invasive fishes have revealed that these species have the capability to generate forms with life-history traits that differ between native and non-native populations. As a contribution to explain their invasion success, the theory of alternative ontogenies and invasive potential has been developed. The main aim of the present study was to test the hypothesis derived from this theory, which predicts that females of the non-native population of N. melanostomus (from Slovakia) will have significantly smaller oocytes, higher fecundity and smaller body size at maturity than those of the native population (from Bulgaria). All the three quantitative parameters of life-history traits examined in this study were found to be consistent with the predictions tested. Variations in reproductive parameters observed in non-native N. melanostomus demonstrate the species' phenotypic plasticity, which appears to be an important attribute that helps potential invaders to establish new populations in unknown environments. However, further experimental studies are necessary to verify this theory by testing hypotheses derived from it. Une des espèces les plus envahissantes de poissons aux impacts négatifs est le gobie à taches noires Neogobius melanostomus qui s'est propagé à partir de sa zone ponto-caspienne native vers l'ouest et le centre de l'Europe et même en Amérique du Nord. Des études antérieures sur les poissons invasifs ont révélé que ces espèces ont la capacité de générer des individus avec des traits d'histoire de vie qui diffèrent entre les populations autochtones et non autochtones. En guise de contribution à expliquer leur succès d'invasion, la théorie des ontogenèses alternatives et du potentiel invasif a été développée. L'objectif principal de cette étude était de tester l'hypothèse dérivée de cette théorie, qui prédit que les femelles de la population non autochtone de N. melanostomus (de Slovaquie) auront de plus petits ovocytes, une plus forte fécondité et une plus petite taille à maturité que celles de la population autochtone (de Bulgarie). Tous les trois paramètres quantitatifs des traits d'histoire de vie examinés dans cette étude ont été jugés conformes aux prédictions testées. Les variations dans les paramètres de reproduction observés chez N. melanostomus non indigènes démontrent la plasticité phénotypique de l'espèce, qui semble être un attribut important qui aide les envahisseurs potentiels à établir de nouvelles populations dans des environnements inconnus. Toutefois, d'autres études expérimentales sont nécessaires pour vérifier cette théorie en testant des hypothèses qui en découlent. RÉSUMÉ

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“…Parental care is not only energetically costly but also increases the vulnerability of males to predators (Guo et al, 2013), causing a female predominance. Nevertheless, a male-biased sex ratio is found to be frequent on goby populations introduced in a new environment (Tomczak and Sapota, 2006;Kornis et al, 2012;Corkum et al, 2004;Young et al, 2010;Gutowsky and Fox, 2011;Roche et al, 2015). A positive relationship between the egg survival rate and the preponderance of males over females has been observed (Kovtun, 1980), since each male will have to guard nests with fewer eggs, resulting in a greater probability of survival of fry: an unbalanced sex ratio towards males would be favoured in populations settled in a new environment (Tomczak and Sapota, 2006;Kornis et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

First information on age and growth ofPadogobius bonelli(Bonaparte, 1846) outside of its native range: River Aggia (Central Italy)

Pompei

Giannetto

Lorenzoni

2016

Knowl. Manag. Aquat. Ecosyst.

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-Padogobius bonelli is a goby native to Northern Italy, but several populations are established in Central Italy out of its native range. P. bonelli caused negative impact on native fish community but any study on growth in the introduced areas has ever been conducted. In this study age, growth and condition of a non-native population of P. bonelli from the River Aggia were investigated. Samples (n = 422) were collected monthly from January to December 2012. Age estimation was based on scalimetry and five age classes (0 + -4 + ) were observed. Sex ratio was strongly male-biased. Growth in previous years was determined by back-calculation from scale measurements and the occurrence of Lee's phenomenon was tested. Von Bertalanffy growth parameters were estimated (Males:No differences in growth between sexes were observed, despite sexual dimorphism based on the larger size of males is count as a typical trait of the species. This result could be affected by the reverse Lee's phenomenon that acts only on females, since in the population selectively survived females of larger size. Smaller females would be disadvantaged, especially during the breeding season, as highlighted by the low somatic condition observed in the period April-June.Key-words: italian gobies / non-native species / growth / condition / back-calculation Résumé -Premières données sur l'âge et la croissance de Padogobius bonelli (Bonaparte, 1846) en dehors de son aire de répartition naturelle : la rivière Aggia (Italie centrale). Padogobius bonelli est un gobie originaire d'Italie du Nord, mais plusieurs populations sont établies en Italie centrale hors de son aire de répartition naturelle. P. bonelli a causé des impacts négatifs sur la communauté de poissons indigènes, mais aucune étude sur la croissance dans les milieux où il a été introduit n'a jamais été menée. Dans cette étude, l'âge, la croissance et l'état d'une population nonnative de P. bonelli de la rivière Aggia ont été étudiés. Les échantillons (n = 422) ont été recueillis chaque mois de janvier à décembre 2012. L'estimation de l'âge a été basée sur la scalimétrie et cinq classes d'âge (0 + -4 + ) ont été observées. Le sex-ratio était fortement en faveur des mâles. La croissance des années précédentes a été déterminée par rétro-calcul à partir de mesures d'écailles et la présence du phénomène de Lee a été testée. Les paramètres de croissance de Von Bertalanffy ont été estimés (mâles : L ∞ = 8,35 cm, k = 0, 40, Φ = 1,44 ; femelles : L ∞ = 8,71, k = 0,43, Φ = 1,51). Aucune différence de croissance entre les sexes n'a été observée, en dépit du dimorphisme sexuel et la plus grande taille des mâles rapportée comme un trait typique de l'espèce. Ce résultat pourrait être affecté par le phénomène de Lee inverse qui agit seulement sur les femelles, étant donné que dans la population ont survécu sélectivement les femelles de plus grande taille. Les petites femelles seraient désavantagées, en particulier pendant la saison de reproduction, comme l'a souligné l'état somatique faible observé dan...

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Demography and substrate affinity of the round goby (Neogobius melanostomus) in Hamilton Harbour

Cited by 97 publications

References 38 publications

Condition-dependent auditory processing in the round goby (Neogobius melanostomus): links to sex, reproductive condition, and female estrogen levels.

Condition-dependent auditory processing in the round goby (Neogobius melanostomus): links to sex, reproductive condition, and female estrogen levels.

Different life-histories of native and invasiveNeogobius melanostomusand the possible role of phenotypic plasticity in the species’ invasion success

First information on age and growth ofPadogobius bonelli(Bonaparte, 1846) outside of its native range: River Aggia (Central Italy)

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