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| Arias, J.; Santos, M.; Newmark Umbreit, F.. |
| Todos los organismos han desarrollado evolutivamente mecanismos que les permiten defenderse de otros, garantizar su permanencia temporalmente y evitar el ataque de depredadores. Uno de estos mecanismos es la defensa química, mediante la cual los depredadores potenciales de los organismos son disuadidos de consumir su presa. En este estudio se evaluó la capacidad disuasora de los extractos orgánicos crudos de quince esponjas marinas del Caribe colombiano, sobre el pez arrecifal generalista Stegastes partitus. Se encontró que el extracto de Cribrochalina infundibulum actuó como un atrayente para estos depredadores potenciales, mientras que sólo los extractos de las esponjas Dragmacidon reticulata, Petromica cyocaliptoides, Neopetrosia proxima, Myrmekioderma... |
| Tipo: Journal Contribution |
Palavras-chave: Sponges; Predators; Feeding; Chemical ecology; Feeding deterrents. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4399 |
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| Arias, J.; Zea, S.; Newmark, F.; Santos-Acevedo, M.. |
| As a contribution to the biological knowledge about the sea fan Gorgonia ventalina and the use of this information as a tool to generate conservation and management strategies for this threatened species, a study about its annual growth rate, in different reef areas in Santa Marta and the National Natural Park Tayrona in the Colombian Caribbean took place. Manual measurements of 35 colonies were analyzed and images of 11 colonies were recorded in the beginning and in the end of the field stage. The annual growth rate varies among colonies and areas where measurements were taken. The average annual growth rate obtained with both of the methods was high and oscillated between 7.6 and 8.1 cm/year in height and between 6.9 and 8.3 cm/year wide. The total area... |
| Tipo: Journal Contribution |
Palavras-chave: Antifouling substances; Environmental impact; Fans; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_24420. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/1975 |
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