Spatial and temporal variation of photosynthesis in intertidal <i>Mazzaella laminarioides</i> (Bory)Fredericq (Rhodophyta, Gigartinales)

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dc.contributor.authorVarela, Daniel A.
dc.contributor.authorSantelices, Bernabe
dc.contributor.authorCorrea, Juan A.
dc.contributor.authorArroyo, Mary K.
dc.date.accessioned2025-01-21T01:05:48Z
dc.date.available2025-01-21T01:05:48Z
dc.date.issued2006
dc.description.abstractThe red alga Mazzaella laminarioides is an economically important species with an extended latitudinal distribution along the Chilean coast. Its populations form mid-intertidal stands, several meters wide, and therefore are differentially exposed to environmental variables that result in temporal and spatial variability in productivity. We evaluated the effect of latitude and intertidal height on productivity by in situ measurement of photosynthetic performance. Daily and seasonal variations of O-2-evolution rate and maximal quantum yield (F (v)/F (m)) were determined in plants from the upper and lower intertidal zone at two localities 1500,km apart. Results suggest that plant responses were mainly affected by irradiation, temperature and desiccation. At local level, upper intertidal plants showed a reduced photosynthetic rate and quantum efficiency as compared to those displayed by plants from the lower intertidal, indicating their higher level of excitation energy acclimation. Stronger acclimation differences between upper and lower intertidal plants were observed in spring and summer. Differences in photosynthetic parameters between reproductive phases were recorded in autumn and winter, regardless of the position of the individuals in the intertidal zone. The effects of tidal elevation on seasonal patterns of photosynthesis were also influenced by latitude. Seasonal variation in photosynthetic efficiency was observed in plants from the northern population at both intertidal elevations, but only at the upper intertidal level in the southern population. This study shows that production variability in M. laminarioides results from differences in the intensity of environmental factors observed seasonally at local (intertidal) and latitudinal scales.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s10811-006-9102-2
dc.identifier.eissn1573-5176
dc.identifier.issn0921-8971
dc.identifier.urihttps://doi.org/10.1007/s10811-006-9102-2
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96019
dc.identifier.wosidWOS:000242285100014
dc.issue.numero6
dc.language.isoen
dc.pagina.final838
dc.pagina.inicio827
dc.revistaJournal of applied phycology
dc.rightsacceso restringido
dc.subjectphotosynthetic acclimation
dc.subjectspatial variation
dc.subjectlatitudinal variability
dc.subjecttidal level
dc.subjectphotoinhibition
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleSpatial and temporal variation of photosynthesis in intertidal <i>Mazzaella laminarioides</i> (Bory)Fredericq (Rhodophyta, Gigartinales)
dc.typeartículo
dc.volumen18
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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