Coastal and Marine Studies in Mexico – Dr. Nuno Simões
Permanent URI for this collectionhttps://hdl.handle.net/1969.6/89478
Browse
Browsing Coastal and Marine Studies in Mexico – Dr. Nuno Simões by Author "Garese, Agustín"
Now showing 1 - 2 of 2
- Results Per Page
- Sort Options
Item Comparison of cnidae sizes between the two morphotypes of the giant Caribbean sea anemone Condylactis gigantea (Actiniaria: Actiniidae)(International Journal of Tropical Biology and Conservation, 2018-07-04) González Muñoz, Ricardo Enrique; Hernández-Ortiz, Carlos; Garese, Agustín; Simões, Nuno; Acuña, Fabián HoracioThe sea anemone Condylactis gigantea is an ecologically important member of the benthic community in coral reefs of the tropical Atlantic, and displays two morphotypes with respect to the color in their tentacular tips: the green tip morphotype and the pink/purple tip morphotype. Although some molecular and ecological differences have been found between these morphotypes, no other morphological distinctions have been reported, and currently both are still considered a single taxonomic species. In the present study, we perform an exploration on the variability in the size of cnidae between these two morphotypes and performed statistical analyses to compare the 10 categories of cnidae from specimens hosted in the Cnidarian Collection of Gulf of Mexico and Mexican Caribbean, of the Universidad Nacional Autónoma de México, which were previously collected in several coral reefs localities of the Yucatán Peninsula. Results reveal no significant variation in cnidae size between the two morphotypes, but significant variations were found within each morphotype. In addition, we update the composition of the cnidom of C. gigantea, and the utility of the size of cnidae to distinguish between morphotypes or closely related species is discussed.Item The Spotted Cleaner Shrimp, Periclimenes yucatanicus (Ives, 1891), on an Unusual Scleractinian Host(MDPI, 2019-11-12) González-Muñoz, Ricardo; Garese, Agustín; Acuña, Fabián Horacio; Reimer, James D.; Simões, NunoThe spotted cleaner shrimp, Periclimenes yucatanicus (Ives, 1891), forms symbioses with sea anemones that may serve as cleaning stations for reef fishes [1]. This Caribbean palaemonid shrimp has usually been reported in symbiotic association with several species of actiniarian hosts, such as Condylactis gigantea (Weinland, 1860) and Bartholomea annulata (Le Sueur, 1817), or even with some corallimorpharians and a scyphozoan jellyfish [2]. During a field survey at Alacranes coral reef (26 June 2016; 22°27.14’ N, 89°45.79’ W; 13 m depth) on the Campeche Bank, Yucatán Peninsula, México, two spotted shrimps were observed swimming and walking above the polyps of the head coral Montastraea cavernosa (Linnaeus, 1767). Because none of the usual hosts of P. yucatanicus were detected nearby, we hypothesize that the shrimps were using the scleractinian coral as a host. Some other shrimp species commonly associated with actiniarians were previously reported to be living on stony corals, such as Ancylomenes holthuisi (Bruce, 1969) on Heliofungia actiniformis (Quoy and Gaimard, 1833) in New Guinea [3], and Periclimenes rathbunae Schmitt, 1924 on Dendrogyra cylindrus Ehrenberg, 1834 in Curaçao [4]. The observation (see Figure 1) of Montastraea cavernosa hosting Periclimenes yucatanicus is the second report of a palaemonid shrimp in association with a scleractinian coral in the Atlantic Ocean. The ecological implications of this association are unknown but could be related to a low local availability of usual hosts.