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Michael J. Kingsford - One of the best experts on this subject based on the ideXlab platform.

  • Spatial and temporal variation in predation on reef fishes by coral trout ( Plectropomus leopardus , Serranidae)
    Coral Reefs, 1992
    Co-Authors: Michael J. Kingsford
    Abstract:

    The diet of coral trout Plectropomus leopardus (Serranidae) was studied over a two year period at One Tree Island, Great Barrier Reef, Australia. Rapid visual counts demonstrated that P. leopardus were most abundant on the reef slope habitat and inner edge of the enclosed lagoon. Few P. leopardus were found at sites from “inner” lagoon. It was hypothesized that diet would vary among habitats, times and size classes of coral trout. Ninety-two percent of P. leopardus that contained prey had consumed fish and 87% had only eaten fish. Many types of reef fish were taken by P. leopardus (e.g. Pomacentridae, Scaridae, Blenniidae and Labridae). Most pelagic prey (Clupeidae and Engraulididae) were taken on the reef slope, while some prey were solely or pimarily taken in the lagoon (e.g. Blenniidae and crustaceans). Most pelagic prey were taken on the reef slope in summer by P. leopardus>250 mm (SL). Plectropomus leopardus (

  • spatial and temporal variation in predation on reef fishes by coral trout plectropomus leopardus serranidae
    Coral Reefs, 1992
    Co-Authors: Michael J. Kingsford
    Abstract:

    The diet of coral trout Plectropomus leopardus (Serranidae) was studied over a two year period at One Tree Island, Great Barrier Reef, Australia. Rapid visual counts demonstrated that P. leopardus were most abundant on the reef slope habitat and inner edge of the enclosed lagoon. Few P. leopardus were found at sites from “inner” lagoon. It was hypothesized that diet would vary among habitats, times and size classes of coral trout. Ninety-two percent of P. leopardus that contained prey had consumed fish and 87% had only eaten fish. Many types of reef fish were taken by P. leopardus (e.g. Pomacentridae, Scaridae, Blenniidae and Labridae). Most pelagic prey (Clupeidae and Engraulididae) were taken on the reef slope, while some prey were solely or pimarily taken in the lagoon (e.g. Blenniidae and crustaceans). Most pelagic prey were taken on the reef slope in summer by P. leopardus>250 mm (SL). Plectropomus leopardus (<200 mm) from the lagoon had a higher proportion of invertebrates in the diet than fish from the reef slope. Plectropomus leopardus of all sizes ate small fish, while largest fish generally consumed largest prey (especially adult scarids and labrids). I argue that interactions among multiple species of prey and predators need more attention, because piscivores may respond to prey in different ways according to habitat type as well as the number and type of other prey types present. Furthermore, different sizes of fish (e.g. coral trout) may impact assemblages of prey in different ways.

Peter Wirtz - One of the best experts on this subject based on the ideXlab platform.

Shaun K. Wilson - One of the best experts on this subject based on the ideXlab platform.

  • Multiscale habitat associations of detrivorous blennies (Blenniidae: Salariini)
    Coral Reefs, 2001
    Co-Authors: Shaun K. Wilson
    Abstract:

    The distribution and habitat associations of detrivorous blennies on a tropical coral reef were investigated at several spatial scales and compared with other fish that feed on the epilithic algal matrix to assess density and biomass contributions of small detrivorous fishes to these assemblages. At broad spatial scales total blenny abundance and biomass were highest on the tops of reefs exposed to prevailing winds. On the finer scale of microhabitat use, all species showed a preference for non-living corals, although the type of coral utilised differed between species. The high abundance of blennies on reef tops and non-living corals may be partially related to the quality and availability of detritus in these habitats. Comparisons of total blenny abundance and biomass with other territorial detrivores found that blennies accounted for approximately 60% of this functional group's density and 21% of their biomass on exposed reef tops. Overall, territorial detrivores were found to constitute approximately 37% of the density and 26% of the biomass of the detrivorous/herbivorous fish assemblage on exposed reef tops. Small detrivorous fish therefore represent a substantial proportion of fish assemblages that feed on epilithic algae and associated detritus on coral reefs.

  • Trophic status and feeding selectivity of blennies (Blenniidae: Salariini)
    Marine Biology, 2000
    Co-Authors: Shaun K. Wilson
    Abstract:

    An evaluation of the dietary resources available to, and selected by, blennies of the tribe Salariini was used to assess their trophic status on the Great Barrier Reef. Gut-content analysis of nine species of blennies found detrital aggregates to be the dominant item ingested. Samples of the dietary resources available to one of these species, Salarias patzneri, were compared biochemically. Of the two main dietary categories (detrital aggregates and filamentous algae), detrital aggregates were the major resource available, accounting for 53 ± 4.6% (SE) of the organic matter present. The mean C:N values for detrital aggregates (17.2 ± 0.8) and filamentous algae (20.0 ± 1.8) were very similar, as were protein concentrations (1.8 ± 0.1 and 2.1 ± 0.1 μg mg−1, respectively). However, mean carbohydrate concentrations were much lower in the aggregates than the filamentous algae (19 ± 2 and 76 ± 13 μg mg−1, respectively). Comparison of the inorganic particles ingested to those available indicated that S. patzneri selectively fed on particles 250 μm, (predominantly algal filaments). The patterns of resource availability, nutritional quality and selectivity suggest that salariin blennies utilise detrital aggregates as their primary dietary resource.

Sergio R. Floeter - One of the best experts on this subject based on the ideXlab platform.

C. D. Zander - One of the best experts on this subject based on the ideXlab platform.

  • Osteological characters as tool for blenniid taxonomy – a generic revision of European Blenniidae (Percomorphi; Pisces)1
    Journal of Zoological Systematics and Evolutionary Research, 2009
    Co-Authors: Maja Bock, C. D. Zander
    Abstract:

    The morphology of neurocrania of several representatives of European Blenniidae was investigated. Regarding the structure of parietals and supraoccipital, and the course of the supratemporal canal of the lateral-line system, four different patterns were found. This leads to the differentiation of the genera Lipophrys, Coryphoblennius, Parablennius, Scartella and Aidablennius. Blennius is separated from these genera as it possesses narrow relationships to the tribes Nemophini, Omobranchini and Phenablenniini. The remaining genera of the former tribe Blenniini (Aidablennius, Chasmodes, Coryphoblennius, Hypleurochilus, Hypsoblennius, Lipophrys, Parablennius and Scartella) are joined in the new tribe Parablenniini which possesses strong relationships to the tribe Salariini. Zusammenfassung Skelettmerkmale als Kriterium fur die Taxonomie der Blenniidae – Revision der Gattungen europaischer Blenniidae (Percomorphi; Pisces) Die Hirnschadel von Vertretern einiger europascher Blenniidae wurden morphologisch untersucht. Dabei wurden vier unterschiedliche Muster in der Anordnung von Parietalia, Supraoccipitale sowie dem Verlauf des Supratemporalkanals des Seitenorgans festgestellt. Entsprechend erfolgt eine Einteilung in die Gattungen Lipophrys, Coryphoblennius, Parablennius, Scartella und Aidablennius. Blennius wird von diesen Gattungen abgetrennt, da sic starkere Beziehungen zu den Tribus Nemophini, Omobranchini und Phenablennuni besitzt. Die verbleibenden Gattungen (Aidablennius, Chasmodes, Coryphoblennius, Hypleurochilus, Hypsoblennius, Lipophrys, Parablennius, Scartella) werden in der neuen Tribus Parablenniini zusammengefaβt, die ihrerseits die groβten Beziehungen zur Tribus Salariini hat.

  • osteological characters as tool for blenniid taxonomy a generic revision of european Blenniidae percomorphi pisces 1
    Journal of Zoological Systematics and Evolutionary Research, 2009
    Co-Authors: Maja Bock, C. D. Zander
    Abstract:

    The morphology of neurocrania of several representatives of European Blenniidae was investigated. Regarding the structure of parietals and supraoccipital, and the course of the supratemporal canal of the lateral-line system, four different patterns were found. This leads to the differentiation of the genera Lipophrys, Coryphoblennius, Parablennius, Scartella and Aidablennius. Blennius is separated from these genera as it possesses narrow relationships to the tribes Nemophini, Omobranchini and Phenablenniini. The remaining genera of the former tribe Blenniini (Aidablennius, Chasmodes, Coryphoblennius, Hypleurochilus, Hypsoblennius, Lipophrys, Parablennius and Scartella) are joined in the new tribe Parablenniini which possesses strong relationships to the tribe Salariini. Zusammenfassung Skelettmerkmale als Kriterium fur die Taxonomie der Blenniidae – Revision der Gattungen europaischer Blenniidae (Percomorphi; Pisces) Die Hirnschadel von Vertretern einiger europascher Blenniidae wurden morphologisch untersucht. Dabei wurden vier unterschiedliche Muster in der Anordnung von Parietalia, Supraoccipitale sowie dem Verlauf des Supratemporalkanals des Seitenorgans festgestellt. Entsprechend erfolgt eine Einteilung in die Gattungen Lipophrys, Coryphoblennius, Parablennius, Scartella und Aidablennius. Blennius wird von diesen Gattungen abgetrennt, da sic starkere Beziehungen zu den Tribus Nemophini, Omobranchini und Phenablennuni besitzt. Die verbleibenden Gattungen (Aidablennius, Chasmodes, Coryphoblennius, Hypleurochilus, Hypsoblennius, Lipophrys, Parablennius, Scartella) werden in der neuen Tribus Parablenniini zusammengefaβt, die ihrerseits die groβten Beziehungen zur Tribus Salariini hat.

  • Kritische Anmerkungen zur “Revision der Blenniini (Pisces: Blenniidae)” von H. Bath (1977)
    Journal of Zoological Systematics and Evolutionary Research, 2009
    Co-Authors: C. D. Zander
    Abstract:

    Zusammenfassung Der von Bath verwendete Gattungsschlussel fur die Unterteilung der Blenniini wurde auf seine Brauch-barkeit kritisch diskutiert. Es erwiesen sich nur wenige der angegebenen Merkmale als relevant fur die Taxor. omie dieser Gruppe auf der Gattungsebene: Die Verbindung der Kiemenspalten, die Verbindung der Dentalia und die ubermasige Vermehrung von Zahnen. Reduktionen (z. B. Seitenorgansystem) waren nur brauchbar in Kombination mit anderen Merkmalen. Es wird daher vorgeschlagen, nur noch die Gattungen Blennius, Coryphoblennius, Parablennius und Lipophrys, sowie Chalarodenna, Chasmodes, Hypsoblennius und Hypleurochilus (mit vielen ursprunglichen Merkmalen) zu unter-scheiden. Unter Verwendung der taxonomischen Kriterien fur die vier anderen Blenniidae-Tribus wird ein Cladogramm konstruiert, das die vermittelnde Stellung der Blenniini zu den Salariini einerseits und den Omobranchini, Phenablenniini und Nemophini andererseits hervorhebt. Dieser Stammbaum der Familie Blenniidae zeichnet sich durch vielfachen Wechsel von pro- und regressiven Evolutionsschritten aus. Summary Critical remarks on “Revision of Blenniini (Pisces: Blenniidae)” by H. Bath (1977) Bath's key of blenniin genera is discussed critically for its usefullness. Only few of the indicated criteria turned our to be relevant for taxonomical differentiation at the genus level: The connection of the branchiostegal membranes, the connection of the dentalia, and the excessive increase of teeth number. Reductions (e.g. of the sensory canal systems) proved to be usefull only in combination with other characters. Therefore, we propose to distinguish only the genera Blennius, Coryphoblennius, Parablennius (including Bath'sAidablennius, Bathyblennius, Lupinoblennius, Pictiblennius, and Scartella), and Liophrys (including Bath'sParalipophrys and Salaria), as well as Chalaroderma, Chasmodes, Hypsoblennius, and Hypleurochilus, the latter ones showing many primitive characters. Using the taxonomic criteria of 4 other blenniid tribes, a cladogram is constructed which emphasizes the connective status of Blenniini to Salariini on the one hand, and to Ornobranchini, Phenablenniini, and Nemophini on the other hand. Consequently, the phylogeny of the Blenniidae shows manyfold changes of progressive and regressive evolutionary steps. Resume Remarques critiques a propos de la «Revision des Blenniini (Pisces: Blenniidae)» par H. Bath (1977) La clef des genres, utilisee par Bath (1977) pour la subdivision des Blenniini est discutee d'une maniere tres critique en ce qui concerne son utilitt pratique. Finalement, tres peu de caracteres concernant la taxonomie de ce groupe au niveau des genres se sont reveles valables: p. ex. la soudure des fentes bran-chiales, la soudure des Dentalia et la multiplication des dents. Les reductions comme p. ex. celles du systeme des organes lateraux ne sont utilisables qu'en combinaison avec d'aurres caracteres. En raison de' ces fairs, il est propose que seuls les genres Blennius, Parablennius, Coryphoblennius, Lipophrys, Chalaroderma, Chasmodes, Hypsoblennius et Hypleurochilus, possedantde nombreux caracteres archaiques, doivent etre maintenus. En utilisant des criteres taxonomiques des 4 tribi des Blenniidae, I'auteur propose un cladogramme pour faire apparaitre la position intermediaire des Blenniini par rapport aux Salariini d'une part et des Omobranchini, des Phenablenniini et des Nemophini d'autre part. Cet arbre genealogique de la famille des Blenniidae est illustre par de nombreuses alternation entre des phenomenes progressifs et regressifs au cours de l'evolution.

  • kritische anmerkungen zur revision der blenniini pisces Blenniidae von h bath 1977
    Journal of Zoological Systematics and Evolutionary Research, 2009
    Co-Authors: C. D. Zander
    Abstract:

    Zusammenfassung Der von Bath verwendete Gattungsschlussel fur die Unterteilung der Blenniini wurde auf seine Brauch-barkeit kritisch diskutiert. Es erwiesen sich nur wenige der angegebenen Merkmale als relevant fur die Taxor. omie dieser Gruppe auf der Gattungsebene: Die Verbindung der Kiemenspalten, die Verbindung der Dentalia und die ubermasige Vermehrung von Zahnen. Reduktionen (z. B. Seitenorgansystem) waren nur brauchbar in Kombination mit anderen Merkmalen. Es wird daher vorgeschlagen, nur noch die Gattungen Blennius, Coryphoblennius, Parablennius und Lipophrys, sowie Chalarodenna, Chasmodes, Hypsoblennius und Hypleurochilus (mit vielen ursprunglichen Merkmalen) zu unter-scheiden. Unter Verwendung der taxonomischen Kriterien fur die vier anderen Blenniidae-Tribus wird ein Cladogramm konstruiert, das die vermittelnde Stellung der Blenniini zu den Salariini einerseits und den Omobranchini, Phenablenniini und Nemophini andererseits hervorhebt. Dieser Stammbaum der Familie Blenniidae zeichnet sich durch vielfachen Wechsel von pro- und regressiven Evolutionsschritten aus. Summary Critical remarks on “Revision of Blenniini (Pisces: Blenniidae)” by H. Bath (1977) Bath's key of blenniin genera is discussed critically for its usefullness. Only few of the indicated criteria turned our to be relevant for taxonomical differentiation at the genus level: The connection of the branchiostegal membranes, the connection of the dentalia, and the excessive increase of teeth number. Reductions (e.g. of the sensory canal systems) proved to be usefull only in combination with other characters. Therefore, we propose to distinguish only the genera Blennius, Coryphoblennius, Parablennius (including Bath'sAidablennius, Bathyblennius, Lupinoblennius, Pictiblennius, and Scartella), and Liophrys (including Bath'sParalipophrys and Salaria), as well as Chalaroderma, Chasmodes, Hypsoblennius, and Hypleurochilus, the latter ones showing many primitive characters. Using the taxonomic criteria of 4 other blenniid tribes, a cladogram is constructed which emphasizes the connective status of Blenniini to Salariini on the one hand, and to Ornobranchini, Phenablenniini, and Nemophini on the other hand. Consequently, the phylogeny of the Blenniidae shows manyfold changes of progressive and regressive evolutionary steps. Resume Remarques critiques a propos de la «Revision des Blenniini (Pisces: Blenniidae)» par H. Bath (1977) La clef des genres, utilisee par Bath (1977) pour la subdivision des Blenniini est discutee d'une maniere tres critique en ce qui concerne son utilitt pratique. Finalement, tres peu de caracteres concernant la taxonomie de ce groupe au niveau des genres se sont reveles valables: p. ex. la soudure des fentes bran-chiales, la soudure des Dentalia et la multiplication des dents. Les reductions comme p. ex. celles du systeme des organes lateraux ne sont utilisables qu'en combinaison avec d'aurres caracteres. En raison de' ces fairs, il est propose que seuls les genres Blennius, Parablennius, Coryphoblennius, Lipophrys, Chalaroderma, Chasmodes, Hypsoblennius et Hypleurochilus, possedantde nombreux caracteres archaiques, doivent etre maintenus. En utilisant des criteres taxonomiques des 4 tribi des Blenniidae, I'auteur propose un cladogramme pour faire apparaitre la position intermediaire des Blenniini par rapport aux Salariini d'une part et des Omobranchini, des Phenablenniini et des Nemophini d'autre part. Cet arbre genealogique de la famille des Blenniidae est illustre par de nombreuses alternation entre des phenomenes progressifs et regressifs au cours de l'evolution.