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Comparison of remote video and diver's direct observations to quantify reef fishes feeding on benthos in coral and rocky reefs

Authors

  • G. O. Longo,

    Corresponding author
    1. Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
    2. Laboratório de Biogeografia e Macroecologia Marinha, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Edifício Fritz Müller, 2 andar, Sala 205 B, 88010970 Florianópolis, Santa Catarina, Brazil
      Tel.: +55 48 3721 5521; email: golerme@yahoo.com.br
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  • S. R. Floeter

    1. Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
    2. Laboratório de Biogeografia e Macroecologia Marinha, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Edifício Fritz Müller, 2 andar, Sala 205 B, 88010970 Florianópolis, Santa Catarina, Brazil
    Search for more papers by this author

Tel.: +55 48 3721 5521; email: golerme@yahoo.com.br

Abstract

This study compared remote underwater video and traditional direct diver observations to assess reef fish feeding impact on benthos across multiple functional groups within different trophic categories (e.g. herbivores, zoobenthivores and omnivores) and in two distinct reef systems: a subtropical rocky reef and a tropical coral reef. The two techniques were roughly equivalent, both detecting the species with higher feeding impact and recording similar bite rates, suggesting that reef fish feeding behaviour at the study areas are not strongly affected by the diver's presence.

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