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Revista de Biología Tropical
Article . 2005
Data sources: DOAJ
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Revista de Biología Tropical
Article . 2005
Data sources: DOAJ
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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The occurrence of black corals in Jamaican reef environments, with special reference to Stichopathes lutkeni (Antipatharia: Antipathidae).

Authors: Warner, G.F;

The occurrence of black corals in Jamaican reef environments, with special reference to Stichopathes lutkeni (Antipatharia: Antipathidae).

Abstract

El propósito de este estudio fue registrar las especies de Antipatharia en los arrecifes de Jamaica y realizar estudios preliminares sobre densidades y tamaños de las especies comunes. Además, una pared vertical creada por dragado en el 2002 permitió determinar el crecimiento de colonias recién asentadas. Hice observaciones desde 1998 y medidas desde el 2001 con equipo de buceo tipo “SCUBA” hasta 35 m de profundidad. Se identificaron siete especies de Antipatharia en paredes empinadas de arrecifes coralinos a más de 25 m de profundidad. La especie más común fue el coral negro no ramificado Stichopathes lutkeni. Otras especies comunes incluyen el coral negro con forma de abanico Antipathes atlantica y Antipathes gracilis. Las especies frecuentes incluyen una comercialmente importante, Antipathes caribbeana y una especie con un crecimiento inusual en forma de trepadora, Antipathes rubusiformis. Se observó poco la otra especie de importancia comercial en el Caribe, Plumapathes pennacea, y la cavernícola Antipathes umbratica. La mayor abundancia de corales negros se dio en paredes empinadas de sustratos duros con poca iluminación pero expuestos a la corriente a lo largo de la costa. Las densidades combinadas de las especies más comunes de Antipatharia a 30 m de profundidad en Río Bueno en la costa norte, tenían un ámbito entre 0.1 y 2.5 m-2 (once transectos de 10 m x 1 m, 1-25 colonias por transecto, 68 colonias en total). Cuarenta y seis de las 68 colonias eran S. lutkeni, mientras cerca de allí, en Discovery Bay a 30-35 m, 55 de las 59 colonias eran S. lutkeni. Había una diferencia significativa entre el tamaño promedio de colonias en estas dos poblaciones de S. lutkeni (100 cm y 80 cm, respectivamente), probablemente relacionada al hábitat. Una tercera población de S. lutkeni creciendo a 15-20 m de profundidad en la pared recién dragada tenía un tamaño promedio mucho más pequeño, 36.6 cm (n= 27). El individuo más grande midió 83 cm de largo, indicando un crecimiento mínimo del corallum sin ramificar de 2.1 mm por día.

The purpose of this study was to record the species of Antipatharia on Jamaican reefs and to carry out limited studies on densities and sizes of the common species. In addition, a cliff face created by dredging in 2002 provided the opportunity to study growth of newly settled colonies. Observations since 1998 and measurements since 2001 were made using SCUBA at depths down to 35 m. Seven species of Antipatharia were observed on steep coral reef escarpments below 25 m depth. The commonest species was the unbranched “wire coral” Stichopathes lutkeni. Other common species included the fan-shaped black corals Antipathes atlantica and A. gracilis. Frequently encountered species included commercially important A. caribbeana and a species with an unusual, scrambling growth form, A. rubusiformis. The other major commercial species in the Caribbean, Plumapathes pennacea, and a cave-dwelling species, A. umbratica, were rarely observed. Greatest black coral abundance occurred on steep slopes of hard substrata in low light intensity but exposed to the long-shore current. Combined densities of the commoner Antipatharia at 30 m deep at Rio Bueno on the north coast, ranged from 0.1 to 2.5 m-2 (eleven 10 m x 1 m belt transects, 1-25 colonies per transect, 68 colonies in total). Forty-six of the 68 colonies were S. lutkeni, while nearby at Discovery Bay at 30-35 m, 55 out of 59 colonies were S. lutkeni. There was a significant difference between the mean length of colonies in these two populations of S. lutkeni (100 cm and 80 cm, respectively), probably relating to habitat. A third population of S. lutkeni growing at 15-20 m deep on the recently dredged cliff had a much smaller mean length of 36.6 cm (n= 27). The largest individual measured 83 cm long, indicating a minimum growth rate of the unbranched corallum of 2.1 mm per day.

Keywords

Black coral, Population Density, Analysis of Variance, Jamaica, Stichopathes, Biometry, Rio Bueno, QH301-705.5, Population Dynamics, Bahía Discovery Bay, Biodiversity, Anthozoa, Species Specificity, Antipathes, Discovery Bay, Animals, Body Size, Coral negro, Biology (General), Antipatharia, Ecosystem

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
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