Ascidians at the Pacific and Atlantic entrances to the Panama Canal

Carman, Mary R.; Bullard, Stephan; Rocha, Rosana M.; Lambert, Gretchen; Dijkstra, Jennifer A.; Roper, James J.; Goodwin, Anne M.; Carman, Mimi M.; Vail, Elisabete M.

doi:10.3391/ai.2011.6.4.02

Cited by 29 publications

(29 citation statements)

References 36 publications

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“…Alternatively, a more recent origin could be attributed to maritime transport through the Panama Canal. As reported by Carman et al (2011), the Panama Canal may serve as a corridor between the East Pacific and Caribbean Sea for invasive ascidians. Thus, it is possible that vessels passing through the canal might also carry ascidian larvae or colonies bearing Prochloron in their ballast waters.…”

Section: Discussionmentioning

confidence: 88%

First records of didemnid ascidians harbouringProchloronfrom Caribbean Panama: genetic relationships between Caribbean and Pacific photosymbionts and host ascidians

Hirose

Turon

López‐Legentil

et al. 2012

Systematics and Biodiversity

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Two didemnid ascidians associating with cyanobacterial symbionts (Prochloron spp.) were firstly recorded from Caribbean Panama: Lissoclinum verrilli, which facultatively harboured Prochloron cells on the colony surface, and Diplosoma simile, which obligately harboured algal cells in the peribranchial and common cloacal cavities within the colonies. While L. verrilli sensu stricto has been exclusively recorded from the Bermudas and Caribbean islands, D. simile is widely distributed in tropical Indo-Pacific regions including oceanic islands such as Hawaii. Partial COI sequences of D. simile from the Caribbean were identical to those from the West Pacific, suggesting a high larval-dispersal ability and broad range of environmental tolerance. Molecular phylogenetics of the symbionts, based on 16S rRNA gene sequences, revealed that both ascidian species were associated with Prochloron, while a Synechocystis sp. sequence was also obtained for L. verrilli. In addition, L. verrilli and D. simile harboured different phylotypes within the Prochloron lineage that included symbionts from various hosts and various Pacific sites. Our results indicate that multiple phylotypes of Prochloron exist in Caribbean Panama and that considering the abundance and the number of host species in the Pacific, Prochloron and D. simile may have come from tropical Indo-West Pacific.

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Section: Discussionmentioning

confidence: 88%

First records of didemnid ascidians harbouringProchloronfrom Caribbean Panama: genetic relationships between Caribbean and Pacific photosymbionts and host ascidians

Hirose

Turon

López‐Legentil

et al. 2012

Systematics and Biodiversity

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“…Van Name (1945) cited the geographical distribution of this species from British Columbia south to California and comments about doubtful specimens from Ecuador and north Chile. Later, Tokioka (1972) reported the species in Costa Rica and Carman et al (2011) extended its range to Panama. It is uncertain whether these tropical populations are in their native region and the species is expected to be found along all Central America Pacific coast or whether the southern populations were introduced by human transport.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, Carman et al (2011) reported the presence of A. incrassata near the Pacific entrance of the Panama Canal. However, this identification should be corrected because the specimens better correspond to A. cf.…”

Section: Methodsmentioning

confidence: 99%

“…These studies are important, because the intense traffic of ships through the Panama Canal makes this region more susceptible to the introduction and establishment of exotic species. Here we report on six species of the genus Ascidia, among which four have already been reported in Carman et al (2011). Ascidia sp.…”

Section: Introductionmentioning

confidence: 99%

“…Rocha et al (2012) reported 26 species of Ascidiidae from the shallow waters of the Atlantic coast of the Americas, while only nine species were reported on the Pacific coast (Van Name 1945;Lambert & Lambert 1998;Lambert & Sanamyan 2001;Monniot 2007;Nova-Bustos et al 2010;Carman et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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<strong>Ascidiidae Herdman, 1882 (Tunicata: Ascidiacea) on the Pacific coast of Panama</strong>

Bonnet

Rocha

Carman

2013

Zootaxa

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The ascidian fauna of the Pacific coast of Panama is poorly known and only recently four species in the family Ascidiidae were reported on. Ascidia is the only known genus of Ascidiidae in Pacific Panama waters. In the present research, we describe a new species, Ascidia sideralis sp. nov., and we document the new occurrence of A. cf. gemmata and A. cf. liberata (both previously known to the West Pacific), A. archaia (a cosmopolitan species elsewhere in the Pacific), A. ceratodes (previously documented in the eastern N. Pacific), and A. sydneiensis (an Atlantic species on the east coast of Panama) in Pacific Panama waters. A tabular key for the identification of Ascidiidae on the American Pacific coast complements this study.

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Gretchen Lambert: taxonomist, explorer, and historian of the ascidian community. Active: 1968‐present

Nydam

2023

Genesis

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In 1965, she moved to the University of Washington to start her Master's Degree in Zoology, which she obtained in 1967. She worked with the influential marine ecologist Robert Paine. During her time at the University of Washington, she met Charles Lambert, who became her partner in life and research. Very early on, Charles convinced her of the experimental advantages of ascidians as research animals. From 1970 to 1998, she and Charles worked at California State University, Fullerton (CSUF). Gretchen was a lecturer, a museum coordinator, a laboratory coordinator for introductory biology, a research associate and a senior research associate. She and Charles worked closely together on ascidian ecology and development.

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Ascidians at the Pacific and Atlantic entrances to the Panama Canal

Cited by 29 publications

References 36 publications

First records of didemnid ascidians harbouringProchloronfrom Caribbean Panama: genetic relationships between Caribbean and Pacific photosymbionts and host ascidians

First records of didemnid ascidians harbouringProchloronfrom Caribbean Panama: genetic relationships between Caribbean and Pacific photosymbionts and host ascidians

<strong>Ascidiidae Herdman, 1882 (Tunicata: Ascidiacea) on the Pacific coast of Panama</strong>

Gretchen Lambert: taxonomist, explorer, and historian of the ascidian community. Active: 1968‐present

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