Malacofauna marina del Parque Nacional “Los Caimanes”, Villa Clara, Cuba.
Fecha
2011-07-07
Autores
Quesada Pérez, Liliana Olga
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Editor
Universidad Central "Marta Abreu" de Las Villas
Resumen
Los moluscos tienen gran importancia ecológica por ser uno de los grupos
numéricamente dominantes en las comunidades de macroinvertebrados marinos
bentónicos. A pesar de lo anterior, el grupo ha sido poco estudiado en el Parque
Nacional Los Caimanes, en la costa nor-central de Cuba. Con el objetivo de
determinar la diversidad malacológica del área marina protegida, el trabajo aborda
una actualización del conocimiento estructural de la biodiversidad de moluscos
marinos del parque. Se realizaron colectas en diferentes áreas, mediante
muestreos directos e indirectos, se compararon las áreas muestreadas mediante
el Índice de Similitud de Sørensen y se tomaron fotografías de los ejemplares
mejor conservados. Se obtuvo una lista con un total de 307 especies, 61 de ellas
nuevas para el parque nacional y la provincia. De los nevos registros, 34 son
gastrópodos, 15 bivalvos y 12 poliplacóforos; para estos últimos no existían
reportes anteriores. Se encontraron 6 posibles nuevas especies para la ciencia,
todas gastrópodos. El análisis de similitud indicó dos grupos principales, uno
formado por las áreas situadas más al Sur de los cayos y otro al Norte, lo que
confirma la zonación asumida por la dirección del área protegida. Se fotografiaron
179 especies, agrupadas en 10 láminas. Independientemente del gran número de
nuevos reportes, se concluye que el Parque Nacional Los Caimanes puede
considerarse submuestreado para este segmento de la biota, principalmente en
las zonas de aguas profundas que no son abordables con equipos de buceo
SCUBA.
The mollusks have great ecological importance, because they are one of the numerically dominant groups among the marine bentonic macroinvertebrate communities. However, they have been poorly studied in Los Caimanes National Park at the north-central coast of Cuba. With the objective of determining the mallacological diversity of thls protected area, the work approaches an upgrade of the structural knowledge of the marine mollusks biodiversity from the park. Both direct and indirect samplings were carried out in different areas. The sampled areas were compared using Sørensen Simility Index and pictures of the better preserved specimens were taken. A total of 307 species were obtained, 61 new for the national park and the province. Among the new reports, 34 gastropods, 15 bivalve and 12 poliplacophors are consigned; for these last ones previous reports didn't exist. Besides, 6 possible new species for the science were found, all gastropods. The analysis of simility indicated two main groups, one formed by the areas to the South of the keys and another to the North, which confirms the zonation assumed by the direction of the protected area. 179 species were photographed, grouped in 10 plates. Independently of the great number of new reports, it was concluded that the Los Caimanes National Park can be considered sub sampled for this segment of biota, mainly in the areas of deep waters that are not approachable with SCUBA diving. KEYWORDS: marine protected areas, biodiversity, marine mollusks, Los Caimanes National Park
The mollusks have great ecological importance, because they are one of the numerically dominant groups among the marine bentonic macroinvertebrate communities. However, they have been poorly studied in Los Caimanes National Park at the north-central coast of Cuba. With the objective of determining the mallacological diversity of thls protected area, the work approaches an upgrade of the structural knowledge of the marine mollusks biodiversity from the park. Both direct and indirect samplings were carried out in different areas. The sampled areas were compared using Sørensen Simility Index and pictures of the better preserved specimens were taken. A total of 307 species were obtained, 61 new for the national park and the province. Among the new reports, 34 gastropods, 15 bivalve and 12 poliplacophors are consigned; for these last ones previous reports didn't exist. Besides, 6 possible new species for the science were found, all gastropods. The analysis of simility indicated two main groups, one formed by the areas to the South of the keys and another to the North, which confirms the zonation assumed by the direction of the protected area. 179 species were photographed, grouped in 10 plates. Independently of the great number of new reports, it was concluded that the Los Caimanes National Park can be considered sub sampled for this segment of biota, mainly in the areas of deep waters that are not approachable with SCUBA diving. KEYWORDS: marine protected areas, biodiversity, marine mollusks, Los Caimanes National Park
Descripción
Palabras clave
Parque Nacional “Los Caimanes”,, Moluscos, Malacología