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Descargar Descargar Hidrobiológica 2020, 30 (3): 243-250 OPEN ACCESS HIDROBIOLÓGICA Research Article http:/hidrobiologica.izt.uam.mx December, 2020 ISSN: 2448-7333 Nuevos registros de moluscos (Gastropoda, Bivalvia) de la isla de Cozumel, Quintana Roo, México New records of mollusks (Gastropoda, Bivalvia) from the island of Cozumel, Quintana Roo, Mexico Rogelio Iván Lozano-Guzmán, Jorge Homero Rodríguez-Castro, Ludivina Barrientos-Lozano, Crystian Sadiel Venegas-Barrera, Alain Correa-Gutiérrez y Alfonso Correa-Sandoval* Recibido: 14 de julio de 2020. Aceptado: 16 de octubre de 2020. Publicado: diciembre de 2020. RESUMEN Antecedentes: Los gasterópodos y bivalvos marinos son algunos de los grupos de invertebrados más diver- sos en la naturaleza, pero en México se requiere de un mejor conocimiento de su composición taxonómica. Aunque existen importantes estudios sobre los moluscos del Caribe mexicano algunas zonas como la isla de Cozumel han sido poco estudiadas. Objetivo: Difundir nuevos registros de gasterópodos y bivalvos marinos de la isla de Cozumel. Métodos: Los ejemplares se recolectaron principalmente a partir de transectos en sustratos arenosos y revisión de superficies rocosas.Resultados: De un total de 51 especies de gasterópo- dos pertenecientes a 39 géneros y 23 familias, y 11 especies de bivalvos pertenecientes a 10 géneros y nue- ve familias, se registraron nueve especies como nuevos registros, seis de gasterópodos y tres de bivalvos, lo que incrementa el conocimiento de la malacofauna marina de la región. Los nuevos registros representan el División de Estudios de Posgrado e Investiga- 11.76% y 27.27%, respectivamente, de la fauna total de gasterópodos y bivalvos marinos conocidos en las ción, Tecnológico Nacional de México, Cam- costas de la isla de Cozumel. La principal afinidad malacogeográfica de los nuevos registros es la Caribeña. pus Ciudad Victoria. Boulevard Emilio Portes Conclusiones: El área de estudio posee el 87.93% de los gasterópodos marinos conocidos para el estado Gil No. 1301, Ciudad Victoria, Tamaulipas, de Quintana Roo. El total de especies de bivalvos marinos del área de estudio constituyen el 13.92% de la 87010.México. fauna de esta clase de moluscos para el estado. Aunque la principal afinidad malacogeográfica de los nuevos *Corresponding author: registros de moluscos marinos es la Caribeña, el área de estudio pertenece a una zona de transición con la Alfonso Correa-Sandoval: e-mail: provincia Caroliniana. Ninguno de los nuevos registros es endémico. Todas las especies de gasterópodos y [email protected] bivalvos indicados como nuevos registros se distribuyen en al menos cuatro subprovincias malacológicas. To quote as: Palabras clave: afinidad Caribeña, Cozumel, diversidad, moluscos. Lozano-Guzmán, R. I., J. H. Rodríguez-Castro, L. Barrientos-Lozano, C. S. Venegas-Barrera, A. Correa-Gutiérrez & A. Correa-Sandoval. ABSTRACT 2020. Nuevos registros de moluscos Background: Marine gastropods and bivalves are some of the most diverse invertebrate groups in nature, but (Gastropoda, Bivalvia) de la isla de Cozumel, in Mexico a better knowledge of their taxonomic composition is required. Although there are important studies Quintana Roo, México Hidrobiológica 30 (3): 243-250. on mollusks in the Mexican Caribbean, some areas such as island of Cozumel have been barely studied. Goals: To reveal new records of island of Cozumel marine gastropods and bivalves. Methods: The specimens were DOI:10.24275/uam/izt/dcbs/hidro/2020v30n3/ collected mainly from transects in sandy substrates and revision of rocky surfaces. Results: Out of a total of Correa 51 species of gastropods belonging to 39 genera and 23 families, and 11 species of bivalves belonging to 10 genera and nine families, nine species were registered as new records, six of gastropods and three of bivalves, which increases knowledge of the marine malacofauna of the region. The new records represent 11.76% and 27.27, respectively, of the total fauna of gastropods and marine bivalves known on the coasts of the island of Cozumel. The main malacogeographic affinity of the new records is the Caribbean.Conclusions: The study area has a 87.93% of the known marine gastropods for the state of Quintana Roo. The total marine bivalve species in the study area constitute 13.92% of the fauna of this mollusk class for the state. Although the main malaco- geographic affinity of the new marine mollusk records is the Caribbean, the study area belongs to a transition zone with the Carolinean province. None of the new records is endemic. All the gastropod and bivalve species indicated as new records can be found in at least four malacological subprovinces. Key words:Caribbean affinity, Cozumel, diversity, mollusks. Vol. 30 No. 3 • 2020 244 Lozano-Guzmán R. I. et al. INTRODUCCIÓN En este estudio se señalan nuevos registros de gasterópodos y bi- valvos marinos para la isla de Cozumel, Quintana Roo (20°29’53” y 20° El conocimiento preciso de la composición taxonómica de diversos gru- 29’12”N; 86°57’44” y 86°58’10”W, Fig. 1) y se establecen sus afini- pos de invertebrados marinos como los nemátodos, platelmintos, cora- dades malacogeográficas. La relevancia del área de estudio se debe les y particularmente de moluscos, entre otros, en las costas mexicanas a que sus zonas suroeste, sur y sureste pertenecen al Parque Marino dista aún mucho de ser el adecuado. Nacional Arrecifes de Cozumel, el cual pertenece al Sistema Arrecifal Esto se explica por la escasez de especialistas y consecuentemen- Mesoamericano (INE, 1998). Así, con los nuevos registros se amplía el te en la falta de inversión económica para su investigación. Asimismo, ámbito de distribución geográfica de diversas especies y se contribuye se refleja en el insuficiente trabajo de campo y de análisis de informa- al conocimiento de los aspectos ecológicos relativos a su presencia en ción que contribuyan a revisiones faunísticas que amplíen el conoci- esas nuevas áreas de distribución. miento de la biodiversidad marina. El Caribe mexicano ha sido objeto de muy importantes contribuciones al conocimiento malacofaunístico como los trabajos de Vokes & Vokes (1983), González (1989), Pérez-Ro- MATERIALES Y MÉTODOS dríguez (1997), García-Cubas & Reguero (2004, 2007) y Tunnell et al. Se realizó trabajo de campo entre el 29 de junio de 2010 y el 4 de (2010); no obstante, es necesario un mayor número de estudios que agosto de 2013 (cuatro salidas, cada una de tres días al año, entre junio señalen la composición taxonómica a detalle en función de los diver- y agosto), a partir de recorridos en zonas de playa y revisión de sus- sos estados mexicanos colindantes con la región señalada o bien de tratos rocosos para la recolecta manual y directa de especímenes. Se diferentes regiones ecológicas específicas. El estado de Quintana Roo hicieron transectos paralelos a la playa a partir de la zona intermareal es uno de los centros más importantes de concentración de riqueza y (un transecto en la zona adyacente superior a la línea de marea baja y alta diversidad de especies en las costas de México, principalmente otro transecto en la zona mesolitoral) y hasta las zonas adyacentes de en aguas someras, junto a Campeche y Yucatán en la costa atlántica la zona supralitoral (tercer transecto) recorriéndose en la localidad 1.5 (Castillo-Rodríguez, 2014). km. El diámetro promedio de la zona revisada fue de 12 m. Se hicieron Figura 1. Localización geográfica de la isla de Cozumel, Quintana Roo. Hidrobiológica Gasterópodos y bivalvos de Cozumel, México 245 también inmersiones de 2 horas aproximadamente y hasta 2 m de pro- E. ziczac (Gmelin, 1791) fundidad (Correa-Sandoval & Rodríguez-Castro, 2013). No se recolectó Dieciocho especímenes (20°29’41”N; 86°57’51”W, 21/julio/2012). dentro del área natural protegida. Los ejemplares, con su información ITCVZ 5126. de campo (localidad, coordenadas, fecha, recolector y observacio- nes), fueron protegidos de golpes envolviéndolos en papel higiénico y Distribución geográfica: Sur de Florida a Alabama; Texas; Tamauli- transportados en bolsas y frascos de plástico. Los organismos vivos se pas (La Pesca, Playa de Altamira, Playa Miramar); Veracruz (El Playón, conservaron en alcohol isopropílico al 70%.Los especímenes se hallan Mocambo, Sistema Arrecifal Veracruzano, arrecife de Isla Lobos); Cam- depositados en la Colección de Moluscos (TAM-CEVS-CC-001-15) del peche (Ciudad Sol, Seybaplaya, arrecifes Arenas y Triángulos), Yucatán Laboratorio de Malacología de la División de Estudios de Posgrado e (arrecife Alacranes); Quintana Roo (Contoy, Isla Mujeres, arrecife Ma- Investigación del Instituto Tecnológico de Ciudad Victoria. jahual, Holbox, arrecife Chinchorro); Panamá; Bermudas; Caribe (Bar- bados). La clasificación de las familias y la validación de las especies se hizo de acuerdo con Bouchet & Rocroi (2005), Rosenberg et al. (2009), Orden Neogastropoda, superfamilia Buccinoidea, familia Colum- Turgeon et al. (2009), Tunnell et al. (2010) y WoRMS (2020). La distri- bellidae, género Columbella bución geográfica específica se estableció según los trabajos de Abbott (Linnaeus, 1758) (1974), Andrews (1992), Escobar (1995), Pérez-Rodríguez (1997), Ab- Columbella mercatoria bott & Dance (2000), García-Cubas & Reguero (2004, 2007), Tunnell et Tres especímenes (20°29’47”N; 86°57´47”W, 04/agosto/2013). al. (2010) y Correa-Sandoval & Rodríguez-Castro (2013). ITCVZ 5122. Se determinó la afinidad malacogeográfica de las especies combi- Distribución geográfica: Este de Florida; Campeche (laguna de Tér- nando las provincias malacológicas
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