Browsing by Author "MUNOZ, J"
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- ItemDIFFERENTIAL TRANSPORT OF FERTILIZED AND UNFERTILIZED OVA IN PSEUDOPREGNANT RATS(SOC BIOL CHILE, 1979) VILLALON, M; ORTIZ, ME; AGUAYO, C; MUNOZ, J; CROXATTO, HB
- ItemDIFFERENTIAL TRANSPORT OF FERTILIZED AND UNFERTILIZED OVA IN THE RAT(SOC STUDY REPRODUCTION, 1982) VILLALON, M; ORTIZ, ME; AGUAYO, C; MUNOZ, J; CROXATTO, HB
- ItemEFFECT OF ENCRUSTING BRYOZOANS ON THE PHYSIOLOGY OF THEIR ALGAL SUBSTRATUM(1991) MUNOZ, J; CANCINO, JM; MOLINA, MXTraditionally, colonies of encrusting epiphytic bryozoans have been regarded as biotic factors reducing photosynthetic performance in benthic algae. In this study we determined under laboratory conditions the effects of Membranipora tuberculata on the photosynthetic efficiency of the rhodophyte Gelidium rex.
- ItemEFFECTS OF THE BRYOZOAN MEMBRANIPORA-TUBERCULATA (BOSC) ON THE PHOTOSYNTHESIS AND GROWTH OF GELIDIUM-REX SANTELICES ET ABBOTT(1987) CANCINO, JM; MUNOZ, J; MUNOZ, M; ORELLANA, MCSeveral species of Membranipora commonly occur on brown and red algae. It is currently believed that these bryozoans could affect growth of the host plant by modifying incident light. In the present study, we report on the changes that occur in both intensity and quality of light passing through colonies of M. tuberculata (Bosc.) and on the effects of bryozoans on growth of the host plant. M. tuberculata decreases photon-flux density by up to 56% of the incident light and slightly affects the quality of the incident light. Although the bryozoan reduces the photosynthetic rate of Gelidium rex Santelices et Abbott, it does not have a net effect on algal growth. It is concluded that the effects of epifauna on algal growth depend on the nature of the algal structure colonized. Therefore, it cannot be predicted a priori that encrusted thalli should grow at a slower rate than nonencrusted thalli.