caa a22 4500 475784138 CHVBK 20180406123653.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1008103120247 doi (NATIONALLICENCE)springer-10.1023/A:1008103120247 Effect of climatic variation on the relative abundance of the red alga Gelidium robustum in Baja California Sur, Mexico [Elektronische Daten] [Claudia Hernández-Guerrero, Margarita Casas-Valdez, Sofia Ortega-García, Sergio Hernández-Vazquez] The red alga Gelidium robustum is important,because of its commercial exploitation in Mexico as araw material for the agar industry, providing 10% ofthe world production of agarophytes. In recent years,its annual harvest in Mexico has shownobvious,variations partly because of an increasedharvesting effort, but also because of environmentalchanges. An analysis is presented of the effect thatinterannual variability of the sea surfacetemperature, wind speed, and upwelling index had onthe relative abundance of this alga from 1980 to 1990.The results indicate a close relation betweenenvironmental fluctuations and the relative abundanceof this species. The response of G. robustum tothe different environmental conditions has not alwaysbeen equal. During El Niño 1982-84, the seasurface temperature was the most important factor andthere was a high negative correlation with therelative abundance. A lag period of three monthsshowed a positive correlation with upwelling index andwind speed. Under normal conditions and during LaNiña, the relative abundance of the alga showed apositive correlation with the sea surface temperature. For the upwelling index and wind speed, therelationship was similar to that during El Niño. Kluwer Academic Publishers, 2000 Gelidium robustum nationallicence CPUE nationallicence abundance relative nationallicence climatic variability nationallicence El Niño, La Niña nationallicence Hernández-Guerrero Claudia Centro Interdisciplinario de Ciencias Marinas-I.P.N, La Paz, Apdo, Postal 592, 23000, Baja California Sur, Mexico aut Casas-Valdez Margarita Centro Interdisciplinario de Ciencias Marinas-I.P.N, La Paz, Apdo, Postal 592, 23000, Baja California Sur, Mexico aut Ortega-García Sofia Centro Interdisciplinario de Ciencias Marinas-I.P.N, La Paz, Apdo, Postal 592, 23000, Baja California Sur, Mexico aut Hernández-Vazquez Sergio Centro de Investigaciones Biologicas, La Paz, 23000, Baja California Sur, Mexico aut Journal of Applied Phycology Kluwer Academic Publishers 12/2(2000-03-01), 177-183 0921-8971 12:2<177 2000 12 10811 https://doi.org/10.1023/A:1008103120247 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008103120247 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hernández-Guerrero Claudia Centro Interdisciplinario de Ciencias Marinas-I.P.N, La Paz, Apdo, Postal 592, 23000, Baja California Sur, Mexico aut NATIONALLICENCE 700 1- Casas-Valdez Margarita Centro Interdisciplinario de Ciencias Marinas-I.P.N, La Paz, Apdo, Postal 592, 23000, Baja California Sur, Mexico aut NATIONALLICENCE 700 1- Ortega-García Sofia Centro Interdisciplinario de Ciencias Marinas-I.P.N, La Paz, Apdo, Postal 592, 23000, Baja California Sur, Mexico aut NATIONALLICENCE 700 1- Hernández-Vazquez Sergio Centro de Investigaciones Biologicas, La Paz, 23000, Baja California Sur, Mexico aut NATIONALLICENCE 773 0- Journal of Applied Phycology Kluwer Academic Publishers 12/2(2000-03-01), 177-183 0921-8971 12:2<177 2000 12 10811 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer