Introducción: La diversidad de anémonas de mar en el Parque Nacional Isla del Coco, Costa Rica, e... more Introducción: La diversidad de anémonas de mar en el Parque Nacional Isla del Coco, Costa Rica, está aún poco estudiada. Objetivo: Reportar por primera vez la presencia de la anémona de mar Exaiptasia diaphana. Métodos: Algunos rodolitos fueron examinados in situ en Punta Ulloa a 14 m. de profundidad mediante SCUBA durante la expedición UCR-UNA-COCO-I al Parque Nacional Isla del Coco el 24 de abril de 2010. Especímenes vivos fijados sobre rodolitos fueron fotografiados y sus medidas y carácterísticas morfológicas externas fueron registradas in situ. Resultados: Varios individuos de E. diaphana fueron observados sobre rodolitos y observamos repetidamente pequeños individuos rodeando a un individuo mayor (presumiblemente la anémona fundadora) sobre rodolitos de Punta Ulloa. Conclusiones: La distribución geográfica de esta especie es extendida, como así también su distribución batimétrica desde el intermareal hasta los 14 m de profundidad. Las imágenes obtenidas aportan evidencia de re...
Sea anemones are considered as polyphagous opportunistic predators and it has been suggested that... more Sea anemones are considered as polyphagous opportunistic predators and it has been suggested that their diet reflects the structure of the community they inhabit. The feeding ecology of intertidal species is an interesting topic to study due to their wide variety of strategies to obtain food. In this sense, we studied the diet of Bunodosoma zamponii, the most abundant actiniarian in the rocky intertidal of Punta Cantera (Mar del Plata, Argentina). The objectives were to describe it and compare its composition seasonally and between diurnal and nocturnal high tides. We examined the gastric cavity content of 154 specimens collected seasonally at both diurnal and nocturnal high tides, and 39 different prey items were identified, some of which are recorded here for the first time for this species. No variations on diet composition were found between seasons or between diurnal and nocturnal high tides, suggesting that the food available does not vary either. Bunodosoma zamponii ingests mostly items with low biomass, which contribute to the total biomass ingested in direct proportion to their frequency in the diet. The bivalve Brachidontes rodriguezii was the main prey for the anemone, followed to a lesser extent by certain amphipods, other mollusks and algae.
In the present study, we report recent findings of the sea pens Anthoptilum grandiflorum, Pennatu... more In the present study, we report recent findings of the sea pens Anthoptilum grandiflorum, Pennatula inflata and Halipteris africana in order to update their distributional information in areas under Argentine jurisdiction. In this sense, we update the southern distributional limit of the species in Argentina to the Burdwood Bank. We also report the association of A. grandiflorum and H. africana with the sea anemone Hormathia pectinata. The kind of relation between both associates is discussed. This represents the first record of an association between sea pens and anemones for the South Atlantic Ocean and the second report in the world.
The sea anemone fauna of Isla del Coco National Park (also known as Cocos Island Nacional Park), ... more The sea anemone fauna of Isla del Coco National Park (also known as Cocos Island Nacional Park), Pacific Costa Rica is poorly known. In the present work we report the first occurrence of the species Telmatactis panamensis. Individuals of this sea anemone (n=24) were collected at Chatham Bay intertidal and at 15m depth in Punta Ulloa, in both cases attached to rocks; during the expedition UCR-UNA-COCO-I in April 2010. We provide photographs of live individuals, external anatomy and an inventory of cnidae of the studied specimens. Possibly this species is extended to greater depth as observed by other authors in the Galápagos Islands.
Abstract An analysis is given of the frequency, abundance, seasonality, and reproductive periods ... more Abstract An analysis is given of the frequency, abundance, seasonality, and reproductive periods of hydroids from sublittoral rocky outcrops in coastal waters off Mar del Plata, Argentina. A total of 13 hydroid species belonging to 8 families were found, 12 of them ...
The feeding ecology of two populations of the sea anemone Bunodosoma zamponii Gomes, Schama &... more The feeding ecology of two populations of the sea anemone Bunodosoma zamponii Gomes, Schama & Solé-Cava 2012 living under different anthropogenic pressures in the coast of Mar del Plata (Buenos Aires, Argentina) was studied. One population was located in Las Delicias (LD; an impacted site adjacent to a wastewater treatment plant) and another in Punta Cantera (PC; the reference site). Both populations of sea anemones were monitored for 2 years and their trophic ecology was analyzed. The mytilid Brachidontes rodriguezii (d'Orbigny, 1842) was the main item found throughout all seasons. Prey diversity was highest in PC during autumn and lowest during winter for both sites. Prey abundance was lower in LD during autumn and summer. Additionally, prey items were larger in PC during autumn, winter, and summer. Item capture probability in autumn was significantly lower in LD. Altogether, the results indicate that the diet of Bunodosoma zamponii differed significantly between sites and such differences varied throughout the year. Most of the differences occurred during autumn and winter, which correspond with a greater concentration of organochlorine pesticides, chlorpyrifos, and polychlorinated biphenyls in anemones from LD registered in previous studies. Overall, this study provides significant knowledge on the feeding ecology of Bunodosoma zamponii that complements the existing information and will provide meaningful insight into the current status of this anemone's populations.
Nine species of sea anemones are documented from the west coast of the Peninsula of Baja Californ... more Nine species of sea anemones are documented from the west coast of the Peninsula of Baja California. Short descriptions of Anthopleura artemisia (Pickering in Dana, 1846), A elegantissima (Brandt, 1835), A. sola Pearse & Francis, 2000 and Epiactis prolifera Verrill, 1869 are provided, including images of the external and internal anatomy, as well as cnidae. In addition, an updated list of the sea anemone species recorded in Mexico, including both the Pacific and Atlantic regions, is provided. The northern species A. artemisia and E. prolifera are recorded for the first time in Mexico. With these new records, the number of sea anemone species known in the Mexican Pacific increases to 35, and to 57 for the entire country.
A new species of tube anemone Ceriantheopsis austroafricanus n. sp. is described from shallow wat... more A new species of tube anemone Ceriantheopsis austroafricanus n. sp. is described from shallow waters in the vicinity of Cape Town, South Africa. This represents the first report of a benthic cerianthid from South African waters. The cnidom and anatomy of other known species of Ceriantheopsis Carlgren are compared with those of the new species, the distributions of the species are mapped and a key provided to their identification.
How to cite Complete issue More information about this article Journal's homepage in redalyc.org ... more How to cite Complete issue More information about this article Journal's homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative
The simplicity of a sea anemone polyp hinders the differences between species and populations, as... more The simplicity of a sea anemone polyp hinders the differences between species and populations, as very few external and internal morphological characters vary enough to distinguish closely related groups. Variations in size of different cnidocyst types could be an important way to characterize populations of sea anemones. We aim to identify which cnidocyst types could be useful to distinguish the variation between sea anemone populations, tested for two species of genus Bunodosoma from the South Atlantic west coast: Bunodosoma caissarum from the Brazilian coast, and B. cangicum from the Brazilian and Uruguayan coasts.We measured cnidocysts several parts of the sea anemones: acrorhagi, external and internal tentacles, column, actinopharynx and filaments, comprising a total of 35,593 measured capsules. Comparissons between cnidocysts lengths from each tissue type were performed by Generalized Linear Models. In B. caissarum, basitrichs from external and internal tentacles were found to be useful for detecting differences between populations and may indicate a latitudinal gradient. For B. cangicum, these aspects should be further analyzed in basitrichs from external tentacles, holotrichs from acrorhagi and microbasic bmastigophores from the filaments. The basitrich from tentacles were found to be the most informative cnidae type in both species for population studies in a latitudinal sense.
(2011) Oocyte production, fecundity, and size at the onset of reproduction of Tripalea clavaria (... more (2011) Oocyte production, fecundity, and size at the onset of reproduction of Tripalea clavaria (Cnidaria, Octocorallia, Anthothelidae) in the southwestern Atlantic. Zoological Studies 50(4): 434-442. The octocoral Tripalea clavaria is a gonochoristic species distributed in the southwestern Atlantic from Rio de Janeiro to the Magellan Strait and is restricted to waters with temperatures of < 20°C. Female colonies are significantly more abundant than males, and their gonads are present throughout the entire year. Male fertile colonies were found only in Dec.-June, because the spermatogenic cycle is shorter than oogenesis, as is characteristic of other octocorals. Fertilization is probably internal, taking place within polyps of female colonies in Mar.-May. Planulae of T. clavaria were found in Apr.-June. The length of larvae was 554-1980 µm, and a maximum of 4 planulae was observed per polyp. The high number of large oocytes per polyp implies that this species allocates most of it energetic resources to sexual reproduction. Regarding the variability of volume of oocytes per polyp, the lowest value was 1.35 × 10-5 mm 3 , and the highest was 0.17 mm 3. Although the reproductive features of T. clavaria are similar to those of other gorgonian octocorals, it has some exceptional features. Despite having small and unbranched colonies, this species exhibits a small colony size at 1st reproduction (2.7 cm) and is highly fecund, producing high numbers of large oocytes compared to other octocorals. Such reproductive traits could explain its successful recruitment on the limited available substrate of rocky outcrops, often characterized by strong currents and turbulence. http://zoolstud.sinica.edu.tw/Journals/50.4/434.pdf
This present study describes for the first time the annual seasonality of a peculiar association ... more This present study describes for the first time the annual seasonality of a peculiar association between two different groups of cnidarians in temperate waters of the Southwestern Atlantic Ocean: the parasitic larval phase of the sea anemone Peachia sp. (Anthozoa) with the hydromedusa Liriope tetraphylla and Eucheilota ventricularis (Hydrozoa) from Mar del Plata, Argentina. As part of the sea anemone description, we also detailed three life-phases of Peachia sp. (parasitic, postparasitic, and juvenile), as well as the cnidom (spirocysts, basitrichs, holotrichs I and II, and microbasic b-mastigophores). The interaction between sea anemone-hydromedusae was observed only in the spring–summer months, while the rest of the year was not observed. Out of the 97 larval sea anemones observed during the period of occurrence of the association, 65% (n = 63) of them were found in E. ventricularis and 35% (n = 34) in L. tetraphylla. Prevalence in E. ventricularis was almost 2% and in L. tetraphylla nearly 0.5%. Intensity of infection ranged 1–2 sea anemones per host. Parasitized organisms in both host species were significantly larger than non-parasitized. The parasite phase of Peachia sp. was observed mainly adhering to the ex-umbrellar surface in both host species. Also, we provide data on the detachment mechanisms of the larvae of Peachia sp. from its host species, the burial process of the postparasitic stage, and the feeding mechanisms of the juvenile polyp.
Agustín Garese, Stella García-Matucheski, Fabián H. Acuña, and Claudia Muniain (2012) Feeding beh... more Agustín Garese, Stella García-Matucheski, Fabián H. Acuña, and Claudia Muniain (2012) Feeding behavior of Spurilla sp. (Mollusca: Opisthobranchia) with a description of the kleptocnidae sequestered from its sea anemone prey. Zoological Studies 51(7): 905-912. Cnidocysts are sequestered from cnidarian prey by aeolid nudibranchs and stored in the tips of their appendages (cerata). The kleptocnidae of 11 specimens of Spurilla sp. are described in detail. The types and relative abundances of prey cnidocysts in nudibranch cerata were highly variable, suggesting exclusive anemone consumption. Spirocysts and several types of microbasic p-mastigophores, microbasic b-mastigophores, and basitrichs were found in external and internal tissues of sea anemone prey. This is the 1st report of predation of aeolid Spurilla sp. on the sea anemones Antholoba achates, Metridium senile lobatum, and Parabunodactis imperfecta from the rocky intertidal of Patagonia (Chubut Province, Argentina) and on Anthothoe chilensis and Tricnidactis errans at Mar del Plata (Buenos Aires Province, Argentina). Photographs and digital videos of aeolidacean feeding behavior were recorded in situ and in aquaria. The purpose of this study was to provide valuable information on the diet of Spurilla sp. from Argentina using field observations and descriptions of the kleptocnidae. http://zoolstud.sinica.edu.tw/Journals/51.7/905.pdf
The sea anemone fauna of Isla del Coco National Park (also known as Cocos Island Nacional Park), ... more The sea anemone fauna of Isla del Coco National Park (also known as Cocos Island Nacional Park), Pacific Costa Rica is poorly known. In the present work we report the first occurrence of the species Telmatactis panamensis. Individuals of this sea anemone (n=24) were collected at Chatham Bay intertidal and at 15m depth in Punta Ulloa, in both cases attached to rocks; during the expedition UCR-UNA-COCO-I in April 2010. We provide photographs of live individuals, external anatomy and an inventory of cnidae of the studied specimens. Possibly this species is extended to greater depth as observed by other authors in the Galápagos Islands.
Introducción: La diversidad de anémonas de mar en el Parque Nacional Isla del Coco, Costa Rica, e... more Introducción: La diversidad de anémonas de mar en el Parque Nacional Isla del Coco, Costa Rica, está aún poco estudiada. Objetivo: Reportar por primera vez la presencia de la anémona de mar Exaiptasia diaphana. Métodos: Algunos rodolitos fueron examinados in situ en Punta Ulloa a 14 m. de profundidad mediante SCUBA durante la expedición UCR-UNA-COCO-I al Parque Nacional Isla del Coco el 24 de abril de 2010. Especímenes vivos fijados sobre rodolitos fueron fotografiados y sus medidas y carácterísticas morfológicas externas fueron registradas in situ. Resultados: Varios individuos de E. diaphana fueron observados sobre rodolitos y observamos repetidamente pequeños individuos rodeando a un individuo mayor (presumiblemente la anémona fundadora) sobre rodolitos de Punta Ulloa. Conclusiones: La distribución geográfica de esta especie es extendida, como así también su distribución batimétrica desde el intermareal hasta los 14 m de profundidad. Las imágenes obtenidas aportan evidencia de re...
Sea anemones are considered as polyphagous opportunistic predators and it has been suggested that... more Sea anemones are considered as polyphagous opportunistic predators and it has been suggested that their diet reflects the structure of the community they inhabit. The feeding ecology of intertidal species is an interesting topic to study due to their wide variety of strategies to obtain food. In this sense, we studied the diet of Bunodosoma zamponii, the most abundant actiniarian in the rocky intertidal of Punta Cantera (Mar del Plata, Argentina). The objectives were to describe it and compare its composition seasonally and between diurnal and nocturnal high tides. We examined the gastric cavity content of 154 specimens collected seasonally at both diurnal and nocturnal high tides, and 39 different prey items were identified, some of which are recorded here for the first time for this species. No variations on diet composition were found between seasons or between diurnal and nocturnal high tides, suggesting that the food available does not vary either. Bunodosoma zamponii ingests mostly items with low biomass, which contribute to the total biomass ingested in direct proportion to their frequency in the diet. The bivalve Brachidontes rodriguezii was the main prey for the anemone, followed to a lesser extent by certain amphipods, other mollusks and algae.
In the present study, we report recent findings of the sea pens Anthoptilum grandiflorum, Pennatu... more In the present study, we report recent findings of the sea pens Anthoptilum grandiflorum, Pennatula inflata and Halipteris africana in order to update their distributional information in areas under Argentine jurisdiction. In this sense, we update the southern distributional limit of the species in Argentina to the Burdwood Bank. We also report the association of A. grandiflorum and H. africana with the sea anemone Hormathia pectinata. The kind of relation between both associates is discussed. This represents the first record of an association between sea pens and anemones for the South Atlantic Ocean and the second report in the world.
The sea anemone fauna of Isla del Coco National Park (also known as Cocos Island Nacional Park), ... more The sea anemone fauna of Isla del Coco National Park (also known as Cocos Island Nacional Park), Pacific Costa Rica is poorly known. In the present work we report the first occurrence of the species Telmatactis panamensis. Individuals of this sea anemone (n=24) were collected at Chatham Bay intertidal and at 15m depth in Punta Ulloa, in both cases attached to rocks; during the expedition UCR-UNA-COCO-I in April 2010. We provide photographs of live individuals, external anatomy and an inventory of cnidae of the studied specimens. Possibly this species is extended to greater depth as observed by other authors in the Galápagos Islands.
Abstract An analysis is given of the frequency, abundance, seasonality, and reproductive periods ... more Abstract An analysis is given of the frequency, abundance, seasonality, and reproductive periods of hydroids from sublittoral rocky outcrops in coastal waters off Mar del Plata, Argentina. A total of 13 hydroid species belonging to 8 families were found, 12 of them ...
The feeding ecology of two populations of the sea anemone Bunodosoma zamponii Gomes, Schama &... more The feeding ecology of two populations of the sea anemone Bunodosoma zamponii Gomes, Schama &amp; Solé-Cava 2012 living under different anthropogenic pressures in the coast of Mar del Plata (Buenos Aires, Argentina) was studied. One population was located in Las Delicias (LD; an impacted site adjacent to a wastewater treatment plant) and another in Punta Cantera (PC; the reference site). Both populations of sea anemones were monitored for 2 years and their trophic ecology was analyzed. The mytilid Brachidontes rodriguezii (d'Orbigny, 1842) was the main item found throughout all seasons. Prey diversity was highest in PC during autumn and lowest during winter for both sites. Prey abundance was lower in LD during autumn and summer. Additionally, prey items were larger in PC during autumn, winter, and summer. Item capture probability in autumn was significantly lower in LD. Altogether, the results indicate that the diet of Bunodosoma zamponii differed significantly between sites and such differences varied throughout the year. Most of the differences occurred during autumn and winter, which correspond with a greater concentration of organochlorine pesticides, chlorpyrifos, and polychlorinated biphenyls in anemones from LD registered in previous studies. Overall, this study provides significant knowledge on the feeding ecology of Bunodosoma zamponii that complements the existing information and will provide meaningful insight into the current status of this anemone's populations.
Nine species of sea anemones are documented from the west coast of the Peninsula of Baja Californ... more Nine species of sea anemones are documented from the west coast of the Peninsula of Baja California. Short descriptions of Anthopleura artemisia (Pickering in Dana, 1846), A elegantissima (Brandt, 1835), A. sola Pearse &amp; Francis, 2000 and Epiactis prolifera Verrill, 1869 are provided, including images of the external and internal anatomy, as well as cnidae. In addition, an updated list of the sea anemone species recorded in Mexico, including both the Pacific and Atlantic regions, is provided. The northern species A. artemisia and E. prolifera are recorded for the first time in Mexico. With these new records, the number of sea anemone species known in the Mexican Pacific increases to 35, and to 57 for the entire country.
A new species of tube anemone Ceriantheopsis austroafricanus n. sp. is described from shallow wat... more A new species of tube anemone Ceriantheopsis austroafricanus n. sp. is described from shallow waters in the vicinity of Cape Town, South Africa. This represents the first report of a benthic cerianthid from South African waters. The cnidom and anatomy of other known species of Ceriantheopsis Carlgren are compared with those of the new species, the distributions of the species are mapped and a key provided to their identification.
How to cite Complete issue More information about this article Journal's homepage in redalyc.org ... more How to cite Complete issue More information about this article Journal's homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative
The simplicity of a sea anemone polyp hinders the differences between species and populations, as... more The simplicity of a sea anemone polyp hinders the differences between species and populations, as very few external and internal morphological characters vary enough to distinguish closely related groups. Variations in size of different cnidocyst types could be an important way to characterize populations of sea anemones. We aim to identify which cnidocyst types could be useful to distinguish the variation between sea anemone populations, tested for two species of genus Bunodosoma from the South Atlantic west coast: Bunodosoma caissarum from the Brazilian coast, and B. cangicum from the Brazilian and Uruguayan coasts.We measured cnidocysts several parts of the sea anemones: acrorhagi, external and internal tentacles, column, actinopharynx and filaments, comprising a total of 35,593 measured capsules. Comparissons between cnidocysts lengths from each tissue type were performed by Generalized Linear Models. In B. caissarum, basitrichs from external and internal tentacles were found to be useful for detecting differences between populations and may indicate a latitudinal gradient. For B. cangicum, these aspects should be further analyzed in basitrichs from external tentacles, holotrichs from acrorhagi and microbasic bmastigophores from the filaments. The basitrich from tentacles were found to be the most informative cnidae type in both species for population studies in a latitudinal sense.
(2011) Oocyte production, fecundity, and size at the onset of reproduction of Tripalea clavaria (... more (2011) Oocyte production, fecundity, and size at the onset of reproduction of Tripalea clavaria (Cnidaria, Octocorallia, Anthothelidae) in the southwestern Atlantic. Zoological Studies 50(4): 434-442. The octocoral Tripalea clavaria is a gonochoristic species distributed in the southwestern Atlantic from Rio de Janeiro to the Magellan Strait and is restricted to waters with temperatures of < 20°C. Female colonies are significantly more abundant than males, and their gonads are present throughout the entire year. Male fertile colonies were found only in Dec.-June, because the spermatogenic cycle is shorter than oogenesis, as is characteristic of other octocorals. Fertilization is probably internal, taking place within polyps of female colonies in Mar.-May. Planulae of T. clavaria were found in Apr.-June. The length of larvae was 554-1980 µm, and a maximum of 4 planulae was observed per polyp. The high number of large oocytes per polyp implies that this species allocates most of it energetic resources to sexual reproduction. Regarding the variability of volume of oocytes per polyp, the lowest value was 1.35 × 10-5 mm 3 , and the highest was 0.17 mm 3. Although the reproductive features of T. clavaria are similar to those of other gorgonian octocorals, it has some exceptional features. Despite having small and unbranched colonies, this species exhibits a small colony size at 1st reproduction (2.7 cm) and is highly fecund, producing high numbers of large oocytes compared to other octocorals. Such reproductive traits could explain its successful recruitment on the limited available substrate of rocky outcrops, often characterized by strong currents and turbulence. http://zoolstud.sinica.edu.tw/Journals/50.4/434.pdf
This present study describes for the first time the annual seasonality of a peculiar association ... more This present study describes for the first time the annual seasonality of a peculiar association between two different groups of cnidarians in temperate waters of the Southwestern Atlantic Ocean: the parasitic larval phase of the sea anemone Peachia sp. (Anthozoa) with the hydromedusa Liriope tetraphylla and Eucheilota ventricularis (Hydrozoa) from Mar del Plata, Argentina. As part of the sea anemone description, we also detailed three life-phases of Peachia sp. (parasitic, postparasitic, and juvenile), as well as the cnidom (spirocysts, basitrichs, holotrichs I and II, and microbasic b-mastigophores). The interaction between sea anemone-hydromedusae was observed only in the spring–summer months, while the rest of the year was not observed. Out of the 97 larval sea anemones observed during the period of occurrence of the association, 65% (n = 63) of them were found in E. ventricularis and 35% (n = 34) in L. tetraphylla. Prevalence in E. ventricularis was almost 2% and in L. tetraphylla nearly 0.5%. Intensity of infection ranged 1–2 sea anemones per host. Parasitized organisms in both host species were significantly larger than non-parasitized. The parasite phase of Peachia sp. was observed mainly adhering to the ex-umbrellar surface in both host species. Also, we provide data on the detachment mechanisms of the larvae of Peachia sp. from its host species, the burial process of the postparasitic stage, and the feeding mechanisms of the juvenile polyp.
Agustín Garese, Stella García-Matucheski, Fabián H. Acuña, and Claudia Muniain (2012) Feeding beh... more Agustín Garese, Stella García-Matucheski, Fabián H. Acuña, and Claudia Muniain (2012) Feeding behavior of Spurilla sp. (Mollusca: Opisthobranchia) with a description of the kleptocnidae sequestered from its sea anemone prey. Zoological Studies 51(7): 905-912. Cnidocysts are sequestered from cnidarian prey by aeolid nudibranchs and stored in the tips of their appendages (cerata). The kleptocnidae of 11 specimens of Spurilla sp. are described in detail. The types and relative abundances of prey cnidocysts in nudibranch cerata were highly variable, suggesting exclusive anemone consumption. Spirocysts and several types of microbasic p-mastigophores, microbasic b-mastigophores, and basitrichs were found in external and internal tissues of sea anemone prey. This is the 1st report of predation of aeolid Spurilla sp. on the sea anemones Antholoba achates, Metridium senile lobatum, and Parabunodactis imperfecta from the rocky intertidal of Patagonia (Chubut Province, Argentina) and on Anthothoe chilensis and Tricnidactis errans at Mar del Plata (Buenos Aires Province, Argentina). Photographs and digital videos of aeolidacean feeding behavior were recorded in situ and in aquaria. The purpose of this study was to provide valuable information on the diet of Spurilla sp. from Argentina using field observations and descriptions of the kleptocnidae. http://zoolstud.sinica.edu.tw/Journals/51.7/905.pdf
The sea anemone fauna of Isla del Coco National Park (also known as Cocos Island Nacional Park), ... more The sea anemone fauna of Isla del Coco National Park (also known as Cocos Island Nacional Park), Pacific Costa Rica is poorly known. In the present work we report the first occurrence of the species Telmatactis panamensis. Individuals of this sea anemone (n=24) were collected at Chatham Bay intertidal and at 15m depth in Punta Ulloa, in both cases attached to rocks; during the expedition UCR-UNA-COCO-I in April 2010. We provide photographs of live individuals, external anatomy and an inventory of cnidae of the studied specimens. Possibly this species is extended to greater depth as observed by other authors in the Galápagos Islands.
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