On Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa Rica
The cephalochordates are represented by the lancelets, of which species of the genus Branchiostoma are the best known. In recent years, these organisms have been the center of activity of studies focusing on the phylogenetic relationships of the chordates. In 1980, a survey of the benthos at 48 stat...
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| Format: | Article |
| Language: | English |
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Vicerractoría Investigación
2010-12-01
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| Series: | Revista de Biología Tropical |
| Subjects: | |
| Online Access: | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000400007&lng=en&tlng=en |
| _version_ | 1797725968045965312 |
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| author | José A Vargas Harlan K Dean |
| author_facet | José A Vargas Harlan K Dean |
| author_sort | José A Vargas |
| collection | DOAJ |
| description | The cephalochordates are represented by the lancelets, of which species of the genus Branchiostoma are the best known. In recent years, these organisms have been the center of activity of studies focusing on the phylogenetic relationships of the chordates. In 1980, a survey of the benthos at 48 stations in the Gulf of Nicoya estuary, Pacific coast of Costa Rica, yielded 265 specimens of the lancelet Branchiostoma californiense. A total of 48 specimens was also collected at an intertidal flat in the mid upper estuary. Of the 48 subtidal stations, only eight had B. californiense, and these sites all had a sand fraction above 72%. The remaining stations ranged in their sand content from as low as 1% to as high as 92%, with an average of 25.9%, with 29 stations having a sand content lower than 72%. Lower salinities and muddy sediments may limit the distribution of the lancelet further upstream. This information is useful when changes over decades in the ecology of the estuary need to be evaluated against the background of local, regional, and global dynamics. Rev. Biol. Trop. 58 (4): 1143-1148. Epub 2010 December 01. |
| first_indexed | 2024-03-12T10:38:56Z |
| format | Article |
| id | doaj.art-b18a99a020a24d8caec93614da57e554 |
| institution | Directory Open Access Journal |
| issn | 0034-7744 |
| language | English |
| last_indexed | 2024-03-12T10:38:56Z |
| publishDate | 2010-12-01 |
| publisher | Vicerractoría Investigación |
| record_format | Article |
| series | Revista de Biología Tropical |
| spelling | doaj.art-b18a99a020a24d8caec93614da57e5542023-09-02T08:21:17ZengVicerractoría InvestigaciónRevista de Biología Tropical0034-77442010-12-0158411431148S0034-77442010000400007On Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa RicaJosé A Vargas0Harlan K Dean1Universidad de Costa RicaHarvard UniversityThe cephalochordates are represented by the lancelets, of which species of the genus Branchiostoma are the best known. In recent years, these organisms have been the center of activity of studies focusing on the phylogenetic relationships of the chordates. In 1980, a survey of the benthos at 48 stations in the Gulf of Nicoya estuary, Pacific coast of Costa Rica, yielded 265 specimens of the lancelet Branchiostoma californiense. A total of 48 specimens was also collected at an intertidal flat in the mid upper estuary. Of the 48 subtidal stations, only eight had B. californiense, and these sites all had a sand fraction above 72%. The remaining stations ranged in their sand content from as low as 1% to as high as 92%, with an average of 25.9%, with 29 stations having a sand content lower than 72%. Lower salinities and muddy sediments may limit the distribution of the lancelet further upstream. This information is useful when changes over decades in the ecology of the estuary need to be evaluated against the background of local, regional, and global dynamics. Rev. Biol. Trop. 58 (4): 1143-1148. Epub 2010 December 01.http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000400007&lng=en&tlng=enanfioxoBranchiostomaB. californienseestuarioGolfo de NicoyaCosta Rica |
| spellingShingle | José A Vargas Harlan K Dean On Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa Rica Revista de Biología Tropical anfioxo Branchiostoma B. californiense estuario Golfo de Nicoya Costa Rica |
| title | On Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa Rica |
| title_full | On Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa Rica |
| title_fullStr | On Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa Rica |
| title_full_unstemmed | On Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa Rica |
| title_short | On Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa Rica |
| title_sort | on branchiostoma californiense cephalochordata from the gulf of nicoya estuary costa rica |
| topic | anfioxo Branchiostoma B. californiense estuario Golfo de Nicoya Costa Rica |
| url | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000400007&lng=en&tlng=en |
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