A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific
Métodos de muestreo convencionales (censos visuales) usados en el estudio de peces arrecifales han llevado a una constante subestimación de la riqueza de especies, ya que estos tienden a ignorar especies pequeñas y crípticas. En este estudio describimos la estructura del ensamblaje de peces criptobe...
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| Formato: | Online |
| Idioma: | spa eng |
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Universidad de Costa Rica
2014
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/16361 |
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RBT16361 |
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ojs |
| institution |
Universidad de Costa Rica |
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Revista de Biología Tropical |
| language |
spa eng |
| format |
Online |
| author |
Alzate, Adriana Zapata, Fernando A. Giraldo, Alan |
| spellingShingle |
Alzate, Adriana Zapata, Fernando A. Giraldo, Alan A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific |
| author_facet |
Alzate, Adriana Zapata, Fernando A. Giraldo, Alan |
| author_sort |
Alzate, Adriana |
| description |
Métodos de muestreo convencionales (censos visuales) usados en el estudio de peces arrecifales han llevado a una constante subestimación de la riqueza de especies, ya que estos tienden a ignorar especies pequeñas y crípticas. En este estudio describimos la estructura del ensamblaje de peces criptobentónicos en Isla Gorgona, Colombia y estimamos el grado en que este ensamblaje es subestimado al usar censos visuales. Al comienzo y al final de la estación cálida comparamos la capacidad de detección de censos visuales vs “muestreos cerrados con anestésico/rotenona” (N=54 comienzo; N=17 final). La fauna criptobentónica se caracterizó por mantener individuos de tamaños corporales pequeños, pertenecientes principalmente a las familias Antennaridae, Blennidae, Gobiidae, Labrisomidae, Muraenidae, Serranidae, Scorpaenidae and Syngnathidae. Los censos visuales subestimaron la riqueza de especies en un 28-36% y el número de individuos en un 16-35%. Aunque un gran número de especies son detectadas usando ambos métodos, los “muestreos cerrados con anestésico/rotenona” detectan un mayor rango de especies. Este estudio, el primer esfuerzo para describir el ensamblaje de peces criptobentónicos asociados a arrecifes coralinos en Colombia, sugiere que la fauna criptobentónica puede ser un componente importante de la comunidad arrecifal en términos de biodiversidad y papel funcional. |
| title |
A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific |
| title_short |
A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific |
| title_full |
A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific |
| title_fullStr |
A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific |
| title_full_unstemmed |
A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific |
| title_sort |
comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the tropical eastern pacific |
| title_alt |
A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific |
| publisher |
Universidad de Costa Rica |
| publishDate |
2014 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/16361 |
| work_keys_str_mv |
AT alzateadriana acomparisonofvisualandcollectionbasedmethodsforassessingcommunitystructureofcoralreeffishesinthetropicaleasternpacific AT zapatafernandoa acomparisonofvisualandcollectionbasedmethodsforassessingcommunitystructureofcoralreeffishesinthetropicaleasternpacific AT giraldoalan acomparisonofvisualandcollectionbasedmethodsforassessingcommunitystructureofcoralreeffishesinthetropicaleasternpacific AT alzateadriana comparisonofvisualandcollectionbasedmethodsforassessingcommunitystructureofcoralreeffishesinthetropicaleasternpacific AT zapatafernandoa comparisonofvisualandcollectionbasedmethodsforassessingcommunitystructureofcoralreeffishesinthetropicaleasternpacific AT giraldoalan comparisonofvisualandcollectionbasedmethodsforassessingcommunitystructureofcoralreeffishesinthetropicaleasternpacific |
| _version_ |
1810114716105703424 |
| spelling |
RBT163612022-06-09T17:33:13Z A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific Alzate, Adriana Zapata, Fernando A. Giraldo, Alan peces criptobentónicos arrecifes de coral métodos de muestreo encuestas visuales muestras de anestesia/rotenona cryptobenthic fishes coral reefs sampling methods visual surveys enclosed anesthetic/rotenone samples Gorgona Island, the major insular area in the Colombian Pacific Ocean, is characterized by a remarkably high biological and ecosystem diversity for this area of the world. Coral reefs are well developed and their fish communities have been described using conventional visual surveys. These methods, however, are known to be biased towards detecting larger and more mobile species, tending to ignore small and cryptobenthic species. The two main objectives of this study were to describe the assemblage structure of the cryptobenthic fish fauna and estimate the extent to which this fauna is underestimated by visual surveys.At the beginning and the end of the warm season, we compared the cryptobenthic fish assemblage recorded using visual surveys against the one recorded using “enclosed anesthetic/rotenone samples” on isolated coral colonies (N=54 beginning of warm season; N=17 end of warm season). The crypthobenthic fish fauna associated to coral colonies was characterized by small body sizes and was composed mainly by species of the families Antennaridae, Blennidae, Gobiidae, Labrisomidae, Muraenidae, Serranidae, Scorpaenidae and Syngnathidae. Conventional visual surveys underestimated overall species richness by 28-36% and number of individuals by 16-35%. Noteworthy, four species recorded during this study using “enclosed anesthetic/rotenone samples” were new records for Gorgona Island. Although both sampling methods can detect a largely overlapping group of species, the “enclosed anesthetic/rotenone samples” method was able to detect more individuals and species, including several species that visual surveys fail to detect. Although this study is the first effort to describe the cryptobenthic fish assemblage associated to coral reefs in the Tropical Eastern Pacific, our results suggest that these assemblages are an important component of the reef fish community in the region in terms of biodiversity and functional roles. Rev. Biol. Trop. 62 (Suppl. 1): 359-371. Epub 2014 February 01. Métodos de muestreo convencionales (censos visuales) usados en el estudio de peces arrecifales han llevado a una constante subestimación de la riqueza de especies, ya que estos tienden a ignorar especies pequeñas y crípticas. En este estudio describimos la estructura del ensamblaje de peces criptobentónicos en Isla Gorgona, Colombia y estimamos el grado en que este ensamblaje es subestimado al usar censos visuales. Al comienzo y al final de la estación cálida comparamos la capacidad de detección de censos visuales vs “muestreos cerrados con anestésico/rotenona” (N=54 comienzo; N=17 final). La fauna criptobentónica se caracterizó por mantener individuos de tamaños corporales pequeños, pertenecientes principalmente a las familias Antennaridae, Blennidae, Gobiidae, Labrisomidae, Muraenidae, Serranidae, Scorpaenidae and Syngnathidae. Los censos visuales subestimaron la riqueza de especies en un 28-36% y el número de individuos en un 16-35%. Aunque un gran número de especies son detectadas usando ambos métodos, los “muestreos cerrados con anestésico/rotenona” detectan un mayor rango de especies. Este estudio, el primer esfuerzo para describir el ensamblaje de peces criptobentónicos asociados a arrecifes coralinos en Colombia, sugiere que la fauna criptobentónica puede ser un componente importante de la comunidad arrecifal en términos de biodiversidad y papel funcional. Universidad de Costa Rica 2014-02-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf text/html https://revistas.ucr.ac.cr/index.php/rbt/article/view/16361 10.15517/rbt.v62i0.16361 Revista de Biología Tropical; Vol. 62 No. S1 (2014): Volume 62 – Supplement 1 – February 2014: Research in the Gorgona National Natural Park, Colombia; 359–371 Revista de Biología Tropical; Vol. 62 Núm. S1 (2014): Volumen 62 – Suplemento 1 – 2014: Investigaciones en el Parque Nacional Gorgona, Colombia; 359–371 Revista Biología Tropical; Vol. 62 N.º S1 (2014): Volume 62 – Supplement 1 – February 2014: Research in the Gorgona National Natural Park, Colombia; 359–371 2215-2075 0034-7744 10.15517/rbt.v62i0 spa eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/16361/15878 https://revistas.ucr.ac.cr/index.php/rbt/article/view/16361/15879 Copyright (c) 2014 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |