A dichotomous species of Codium (Bryopsidales, Chlorophyta) is colonizing northern Chile
In late 2001 and early 2002, a dichotomous species of Codium appeared colonizing the low intertidal and shallow subtidal bottoms of Caldera Bay, northern Chile (27° 03 S, 70° 51 W). Due to the ecological and economic impact the species is having in Caldera Bay and its potential spread along the Ch...
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Sociedad de Biología de Chile
2004
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oai:scielo:S0716-078X20040002000082004-09-20A dichotomous species of Codium (Bryopsidales, Chlorophyta) is colonizing northern ChileGONZÁLEZ,ALEJANDRASANTELICES,BERNABÉ introduced species seaweed northern Chile In late 2001 and early 2002, a dichotomous species of Codium appeared colonizing the low intertidal and shallow subtidal bottoms of Caldera Bay, northern Chile (27° 03 S, 70° 51 W). Due to the ecological and economic impact the species is having in Caldera Bay and its potential spread along the Chilean coastline, we studied the taxonomic identity of the species and examined its relationships with other dichotomous species of Codium reported for temperate Pacific South America. Morphological analyses suggest that the seaweeds from Caldera Bay belong to Codium fragile (Suringar) Hariot. Not only is there strong agreement in internal and external morphological characters, but among all the species reported for Peru and Chile, this is the only one exhibiting utricles with rounded, apiculate tip terminating in a mucron. This species has a broad geographic distribution in temperate waters. In Chile it was known only from the coasts of Valdivia to the Straits of Magellan (39° 48 S, 73° 26 W to 53° 10 S, 73° 49 W). This is the first record of C. fragile in northern Chile, and this study discusses several alternative hypotheses for the presence of the species into this area. The morphological characteristics of the material collected in Caldera partially agree with diagnostic characters known for C. fragile subspecies tasmanicum and C. fragile subspecies tomentosoides. However, the rapid population spread of the species in northern Chile, and recent molecular analysis support the identification of this form as the invasive C. fragile subspecies tomentosoidesinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.77 n.2 20042004-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000200008en10.4067/S0716-078X2004000200008 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
introduced species seaweed northern Chile |
| spellingShingle |
introduced species seaweed northern Chile GONZÁLEZ,ALEJANDRA SANTELICES,BERNABÉ A dichotomous species of Codium (Bryopsidales, Chlorophyta) is colonizing northern Chile |
| description |
In late 2001 and early 2002, a dichotomous species of Codium appeared colonizing the low intertidal and shallow subtidal bottoms of Caldera Bay, northern Chile (27° 03 S, 70° 51 W). Due to the ecological and economic impact the species is having in Caldera Bay and its potential spread along the Chilean coastline, we studied the taxonomic identity of the species and examined its relationships with other dichotomous species of Codium reported for temperate Pacific South America. Morphological analyses suggest that the seaweeds from Caldera Bay belong to Codium fragile (Suringar) Hariot. Not only is there strong agreement in internal and external morphological characters, but among all the species reported for Peru and Chile, this is the only one exhibiting utricles with rounded, apiculate tip terminating in a mucron. This species has a broad geographic distribution in temperate waters. In Chile it was known only from the coasts of Valdivia to the Straits of Magellan (39° 48 S, 73° 26 W to 53° 10 S, 73° 49 W). This is the first record of C. fragile in northern Chile, and this study discusses several alternative hypotheses for the presence of the species into this area. The morphological characteristics of the material collected in Caldera partially agree with diagnostic characters known for C. fragile subspecies tasmanicum and C. fragile subspecies tomentosoides. However, the rapid population spread of the species in northern Chile, and recent molecular analysis support the identification of this form as the invasive C. fragile subspecies tomentosoides |
| author |
GONZÁLEZ,ALEJANDRA SANTELICES,BERNABÉ |
| author_facet |
GONZÁLEZ,ALEJANDRA SANTELICES,BERNABÉ |
| author_sort |
GONZÁLEZ,ALEJANDRA |
| title |
A dichotomous species of Codium (Bryopsidales, Chlorophyta) is colonizing northern Chile |
| title_short |
A dichotomous species of Codium (Bryopsidales, Chlorophyta) is colonizing northern Chile |
| title_full |
A dichotomous species of Codium (Bryopsidales, Chlorophyta) is colonizing northern Chile |
| title_fullStr |
A dichotomous species of Codium (Bryopsidales, Chlorophyta) is colonizing northern Chile |
| title_full_unstemmed |
A dichotomous species of Codium (Bryopsidales, Chlorophyta) is colonizing northern Chile |
| title_sort |
dichotomous species of codium (bryopsidales, chlorophyta) is colonizing northern chile |
| publisher |
Sociedad de Biología de Chile |
| publishDate |
2004 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000200008 |
| work_keys_str_mv |
AT gonzalezalejandra adichotomousspeciesofcodiumbryopsidaleschlorophytaiscolonizingnorthernchile AT santelicesbernabe adichotomousspeciesofcodiumbryopsidaleschlorophytaiscolonizingnorthernchile AT gonzalezalejandra dichotomousspeciesofcodiumbryopsidaleschlorophytaiscolonizingnorthernchile AT santelicesbernabe dichotomousspeciesofcodiumbryopsidaleschlorophytaiscolonizingnorthernchile |
| _version_ |
1718439559274954752 |