Comparison of Cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique

Visual census techniques have been used worldwide for the documentation of indicators on coral reefs condition, and its outcomes have helped to validate other techniques such as the use of video recording. Among them, those that use video are recommended to increase reef coverage in less time. This...

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Autores principales:	Elena de la Guardia, Susana Perera-Valderrama, Dorka Cobián Rojas, Leonardo Espinosa-Pantoja, Lázaro García-López, Zaimiuri Hernández-González, Jorge Angulo-Valdés
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Indicators of condition Sample techniques Coral reef Caribbean Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/42a4a9789f494c45879202748d0734ef
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spelling	oai:doaj.org-article:42a4a9789f494c45879202748d0734ef2021-12-01T04:39:19ZComparison of Cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique1470-160X10.1016/j.ecolind.2020.107220https://doaj.org/article/42a4a9789f494c45879202748d0734ef2021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20311596https://doaj.org/toc/1470-160XVisual census techniques have been used worldwide for the documentation of indicators on coral reefs condition, and its outcomes have helped to validate other techniques such as the use of video recording. Among them, those that use video are recommended to increase reef coverage in less time. This work aimed at verifying whether indicators of coral reefs condition documented with visual census (VC) and stereo-video operated by a diver (SV) offer comparable results when monitoring methodologies implemented in Cuba are followed. The estimates of diversity and structure of the corals and reef fish associations (species composition, abundance and size) obtained from the simultaneous data collection with VC and SV were compared. Samples were carried out with linear transects: 10 m for coral associations, 50 × 2 m for fish associations, and 800 × 10 m for commercially important fish species. The estimates of coral and fish associations obtained were similar with both techniques. The lower number of species identified and the higher proportion of individuals classified at the genus level obtained with SV were the main source of variation between the techniques, mainly for fish. The work corroborated the efficacy of SV in obtaining accurate measurements of Caribbean reef fish associations and demonstrated for the first time, that SV can be used to characterize coral associations. According to these results, spatial or temporal comparisons may be valid regardless of the sampling technique used. This has application in Cuba, where VC have predominated in the characterization of reefs and where it is necessary to increase the surface of monitored reefs. Therefore, the introduction of SV is recommended as a complement to VC or as an alternative when VC cannot be implemented.Elena de la GuardiaSusana Perera-ValderramaDorka Cobián RojasLeonardo Espinosa-PantojaLázaro García-LópezZaimiuri Hernández-GonzálezJorge Angulo-ValdésElsevierarticleIndicators of conditionSample techniquesCoral reefCaribbeanEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107220- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Indicators of condition Sample techniques Coral reef Caribbean Ecology QH540-549.5
spellingShingle	Indicators of condition Sample techniques Coral reef Caribbean Ecology QH540-549.5 Elena de la Guardia Susana Perera-Valderrama Dorka Cobián Rojas Leonardo Espinosa-Pantoja Lázaro García-López Zaimiuri Hernández-González Jorge Angulo-Valdés Comparison of Cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique
description	Visual census techniques have been used worldwide for the documentation of indicators on coral reefs condition, and its outcomes have helped to validate other techniques such as the use of video recording. Among them, those that use video are recommended to increase reef coverage in less time. This work aimed at verifying whether indicators of coral reefs condition documented with visual census (VC) and stereo-video operated by a diver (SV) offer comparable results when monitoring methodologies implemented in Cuba are followed. The estimates of diversity and structure of the corals and reef fish associations (species composition, abundance and size) obtained from the simultaneous data collection with VC and SV were compared. Samples were carried out with linear transects: 10 m for coral associations, 50 × 2 m for fish associations, and 800 × 10 m for commercially important fish species. The estimates of coral and fish associations obtained were similar with both techniques. The lower number of species identified and the higher proportion of individuals classified at the genus level obtained with SV were the main source of variation between the techniques, mainly for fish. The work corroborated the efficacy of SV in obtaining accurate measurements of Caribbean reef fish associations and demonstrated for the first time, that SV can be used to characterize coral associations. According to these results, spatial or temporal comparisons may be valid regardless of the sampling technique used. This has application in Cuba, where VC have predominated in the characterization of reefs and where it is necessary to increase the surface of monitored reefs. Therefore, the introduction of SV is recommended as a complement to VC or as an alternative when VC cannot be implemented.
format	article
author	Elena de la Guardia Susana Perera-Valderrama Dorka Cobián Rojas Leonardo Espinosa-Pantoja Lázaro García-López Zaimiuri Hernández-González Jorge Angulo-Valdés
author_facet	Elena de la Guardia Susana Perera-Valderrama Dorka Cobián Rojas Leonardo Espinosa-Pantoja Lázaro García-López Zaimiuri Hernández-González Jorge Angulo-Valdés
author_sort	Elena de la Guardia
title	Comparison of Cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique
title_short	Comparison of Cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique
title_full	Comparison of Cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique
title_fullStr	Comparison of Cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique
title_full_unstemmed	Comparison of Cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique
title_sort	comparison of cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/42a4a9789f494c45879202748d0734ef
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Comparison of Cuban coral and reef fish assemblages recorded by visual census and underwater stereo-video technique

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