Abundance and diversity of ascidians in the southern Gulf of Chiriquí, Pacific Panama
Bullard, Stephan G.
Carman, Mary R.
Rocha, Rosana M.
Dijkstra, Jennifer A.
Goodwin, Anne M.
MetadataShow full item record
Little is known about the ascidian fauna of Pacific Panama. Ascidian surveys were conducted in the southern Gulf of Chiriquí on the Pacific coast of Panama in January 2008 and 2009. Surveys along linear transects at 2-3 m depth (snorkel, 2008) and 5 and 12 m depth (SCUBA, 2009) were conducted at multiple sites within a chain of islands extending out from the mainland. Twelve different ascidian taxa were observed with mean densities of up to ~17 ascidians m-2. The most abundant species was Rhopalaea birkelandi. Two of the most abundant taxa (Ascidia sp., Pyura sp.) appear to represent previously undescribed species. Several species of didemnids were also abundant. Ascidians were most abundant near the coast of the mainland and were less abundant near the islands farthest offshore. These data on Panamanian ascidian communities provide a baseline of local biodiversity against which it will be possible to determine whether the communities change over time, if additional species become introduced to the region, or if native Panamanian species become invasive in other parts of the world.
© The Author(s), 2011. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Aquatic Invasions 6 (2011): 381-390, doi:10.3391/ai.2011.6.4.03.
The following license files are associated with this item:
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/2.0
Showing items related by title, author, creator and subject.
Timescales of lateral sediment transport in the Panama Basin as revealed by radiocarbon ages of alkenones, total organic carbon and foraminifera Kusch, Stephanie; Eglinton, Timothy I.; Mix, Alan C.; Mollenhauer, Gesine (2009-12)Paired radiocarbon measurements on haptophyte biomarkers (alkenones) and on cooccurring tests of planktic foraminifera (Neogloboquadrina dutertrei and Globogerinoides sacculifer) from late glacial to Holocene sediments ...
Calcareous nannoplankton biocoenosis : sediment trap studies in the equatorial Atlantic, central Pacific, and Panama Basin Steinmetz, John C. (Woods Hole Oceanographic Institution, 1991)Sediment traps deployed on three moored vertical arrays collected particles at various depths in the equatorial Atlantic (Station E), central Pacific (Station P1), and in the Panama Basin (Station PB1). The calcareous ...
Ling, Hsin Yi (Woods Hole Oceanographic Institution, 1992)A series of samples collected in sediment traps deployed in the Panama Basin at various depths for 112 days were analyzed to examine the vertical flux of tintinnids, the trumpet-shaped ciliate protozoans. Tintinnids in ...