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Padogobius

About: Padogobius is a research topic. Over the lifetime, 25 publications have been published within this topic receiving 754 citations.

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Journal ArticleDOI
TL;DR: In natural populations of Padogobius martensi, a small freshwater goby, the number of eggs per nest increases with the size of the guarding male, and factors determining this size-related reproductive success of males are investigated.

119 citations

Journal ArticleDOI
TL;DR: In a survey of the west-central Italian rivers Ombrone, Fiora, Albegna and Bruna, among established exotic species, the Iberian barbel Barbus graellsii was recorded in Italian fresh waters for the first time.
Abstract: In a survey of the west-central Italian rivers Ombrone, Fiora, Albegna and Bruna, among established exotic species, the Iberian barbel Barbus graellsii was recorded in Italian fresh waters for the first time. Morphological identification was supported by comparison of cytochrome b sequences with those from related barbel species. Other exotics of particular note were Barbus barbus, Pseudorasbora parva and Leuciscus cephalus, together with the Padano-Venetian Chondrostoma genei and Padogobius bonelli. Native species still present included Leuciscus lucumonis, Telestes muticellus, Rutilus rubilio and Padogobius nigricans, but were now more restricted to upper reaches and smaller watercourses. The deleterious effect of alien species on native forms is discussed with particular reference to probable competition between C. genei and L. lucumonis, and between the two gobies. The checklist of species introduced to the fresh waters of Italy is now updated to 34. For the Italian freshwater fish fauna in general, the conservation status of three native species (Acipenser naccari, Salmo marmoratus and Knipowitschia punctatissima) has been improved but five species are believed to be at risk (Salmo carpio, L. lucumonis, Scardinius scardafa, Gobio benacensis and P. nigricans) and four anadromous species (Petromyzon marinus, Lampetra fluviatilis, Acipenser sturio and Huso huso) no longer breed in Italian fresh waters. The processes of change in the composition of the Italian freshwater fish fauna as a whole may be summarized as successively 'padanization', 'danubization' and now 'globalization'.

102 citations

Journal ArticleDOI
TL;DR: Estimation of the ages of the two major lineages of this group of fish with a molecular clock suggests that they are much older than previously thought, and there should be no correlation between their diversification and the Miocene-Pliocene geological events, including the so-called Messinian salinity crisis.
Abstract: The present paper reports on a molecular study based on 12S rRNA and 16S rRNA mitochondrial genes partly sequenced in 13 species of western Mediterranean gobies, three of which are strictly freshwater-dwelling. A total of 867 bp were aligned and used for the phylogenetic reconstruction. Two major lineages were identified, one clustering the sand gobies in a monophyletic clade. Relationships among taxa based on sequence analysis only partly match those based on morphological criteria, suggesting that the latter are somehow insufficient to correctly establish phylogenetic relationships within this family. The results provide evidence for a multiple independent evolution of the freshwater lifestyle in Knipowitschia and Padogobius lineages. On the basis of the present results, it is uncertain whether the freshwater preference within the genus Padogobius originated twice independently in P. nigricans and P. martensii or only once in their common ancestor. Estimation of the ages of the two major lineages of this group of fish with a molecular clock (in combination with the construction of a linearized tree) suggests that they are much older (at least 40 Myr) than previously thought. Thus, there should be no correlation between their diversification and the Miocene-Pliocene geological events, including the so-called Messinian salinity crisis, which occurred about 10 MYA and is believed to have played a role in their evolution. Alternatively, these gobies would have an evolutionary rate at least fourfold faster than those of other vertebrates.

69 citations

Journal ArticleDOI
TL;DR: Congruence between the acoustic affinities among species and that obtained by means of morphological and genetic data is suggested, and first hypotheses on the evolution of acoustic communication and the associated mechanisms in this fish group are suggested.
Abstract: Sound production of 11 Mediterranean goby species, belonging to five different genera, have been comparatively analysed on the basis of the quantitative properties of the acoustic signal emitted by the male in both the reproductive and aggressive context The results obtained showed that three groups of species can be recognized on the basis of signal similarity: the larger sized species (genus Padogobius and Gobius paganellus) producing tonal sounds, showing high values of pulse rate and low values of duration; the larger-sized species producing grunt sounds (genus Gobius and Zosterisessor) with low pulse rate and low duration; and the small-sized species producing grunt sounds (genus Pomatoschistus and Knipowitschia) with low pulse rate and high duration The comparison between these results and those found in previous studies suggests congruence between the acoustic affinities among species and that obtained by means of morphological and genetic data Furthermore, first hypotheses on the evolution of acoustic communication and the associated mechanisms in this fish group are suggested © 2008 The Linnean Society of London, Biological Journal of the Linnean Society, 2008, 93, 763–778

64 citations

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20151
20141
20081
20072
20012
19981