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      Correction: Otoliths of Five Extant Species of the Annual Killifish Nothobranchius from the East African Savannah

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          Abstract

          There is an error in the title of the third subsection of the Results. The correct title is: Interspecific differences in otoliths of N. korthausae and N. ruudwildekampi. There is an error in the last sentence of the “Intraspecific differences in otoliths of N. korthausae” subsection of the Results. The correct sentence is: The otolith variables confirm these differences because the length-height index (0.86±0.03 for Mafia vs. 0.92±0.04 for Kwachepa), the relative antirostrum length (2.97±1.6 for Mafia vs. 4.8±1.7 for Kwachepa), the excisura angle (150.1±8.9 for Mafia vs. 138.0±11.4 for Kwachepa) and the posteroventral angle (123.89±3.4 vs. 128.94±5.6) are significantly different (T-test, P<0.05; see Table 4). There is an error in the legend for Fig 4. Please see the complete, corrected Fig 4 here. 10.1371/journal.pone.0124984.g001 Fig 4 Variation in sulcus morphology between the studied species of Nothobranchius (SEM pictures, left otoliths, inner view). N. rubripinnis: Close-ups of otoliths shown in Figs 3.3 and 3.7; N. ruudwildekampi: Close-ups of otoliths shown in Figs 3.9 and 3.13; N. korthausae: Close-ups of otoliths shown in Figs 3.22 and 3.21; N. orthonotus: Close-ups of otoliths shown in Figs 3.31 and 3.36; N. furzeri: Close-ups of otoliths shown in Figs 3.39 and 3.44. Scale bar refers to 0.5 mm.

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          Otoliths of Five Extant Species of the Annual Killifish Nothobranchius from the East African Savannah

          This study presents, for the first time, a comprehensive dataset that documents the range of inter- and intraspecific otolith variation in aplocheiloid killifish, based on a total of 86 individuals representing five extant species of Nothobranchius PETERS, 1868, from East Africa: the sympatric pairs N. rubripinnis SEEGERS, 1986 and N. ruudwildekampi COSTA, 2009 (Eastern Tanzania), and N. orthonotus (PETERS, 1844) and N. furzeri JUBB, 1971 (Southern Mozambique), and two isolated populations of N. korthausae MEINKEN, 1973 (Eastern Tanzania). Otolith characters were analysed based on SEM images, and otolith morphometry was conducted using uni- and multivariate statistics. Two ancient clades of probably Early to Middle Miocene age in eastern Tanzania and southern Mozambique can be recognized based on otolith morphologies, which is consistent with previous work based on molecular data. The distinctive sulcus morphologies in the otoliths of sympatric species may be linked to species-specific hearing capabilities, perhaps constituting a case of character displacement in an area of secondary sympatry. The otoliths of the studied species of Nothobranchius are diagnostic at the species level, even in the case of closely related species diagnosable otherwise only by minor differences in coloration. The two populations of N. korthausae also displayed some differences in their otolith characters. The new data may facilitate future recognition of fossil species of Nothobranchius. As no fossil remains of extant aplocheiloid killifishes have yet been described, the discovery of fossil otoliths of Nothobranchius would significantly advance understanding of the evolutionary history of this interesting group of fishes.
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            Journal
            PLoS One
            PLoS ONE
            plos
            plosone
            PLoS ONE
            Public Library of Science (San Francisco, CA USA )
            1932-6203
            14 April 2015
            2015
            : 10
            : 4
            : e0124984
            Article
            PONE-D-15-11710
            10.1371/journal.pone.0124984
            4397022
            25875085
            6bebf759-318b-4028-bde9-5684b8d8624a
            Copyright @ 2015

            This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

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