Seasonal biomass variation of Chondracanthus canaliculatus (Rhodophyta, Gigartinales) associated with environmental factors, using a principal components analysis
Associations between biomass (dry weight) of Chondracanthus canaliculatus (Harvey) Guiry and atmospheric and seawater temperature, wave energy and hours of tidal emersion were determined using a principal components analysis. Bimonthly samples of C. canaliculatus biomass were collected from November...
| Autores: | , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 1996 |
| País: | México |
| Recursos: | UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA |
| Repositório: | Ciencias Marinas |
| Idioma: | inglês |
| OAI Identifier: | oai:cienciasmarinas.com.mx:article/873 |
| Acesso em linha: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/873 |
| Access Level: | Acceso aberto |
| Palavra-chave: | seasonal biomass variation Chondracanthus canaliculatus principal components anaysis environmental factors intertidal variación estacional de biomasa análisis de componentes principales factores ambientales intermareal |
| Resumo: | Associations between biomass (dry weight) of Chondracanthus canaliculatus (Harvey) Guiry and atmospheric and seawater temperature, wave energy and hours of tidal emersion were determined using a principal components analysis. Bimonthly samples of C. canaliculatus biomass were collected from November 1988 to November 1989, Chondracanthus canaliculatus biomass had a marked seasonal cycle, with maximum values of biomass in summer (670 g m–2) and minimum in winter (126 g m–2). The principal components analysis showed that high biomass (grater than 543 g m–2) was associated with high atmospheric temperatures (greater than 21.4ºC) and low wave energy (less than 95.7 cm). Low biomass (less than 323 g m–2) was associated with low atmospheric temperatures (less than 17.2ºC) and tidal emersion between 81.5 and 109 h. Medium biomass values (323-543 g m–2) were associated with high water temperatures (grater than 16ºC). |
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