Study of Euglenophyta in the Jacu赤 Delta State Park, Rio Grande do Sul, Brazil. 1. Euglena Ehr., Lepocinclis Perty

作者：Alves da Silva; Sandra Maria; Hahn; Anelise Torres

来源：Acta Botanica Brasilica, 2004, 18(1): 123-140.

DOI：10.1590/S0102-33062004000100011

• euglenophyta
• euglena
• lepocinclis
• jacui state delta park
• southern brazil.

this paper is the result of the study of pigmented euglenaceae performed within the area of the jacu赤 delta state park, located between parallels 29o56%26apos; and 30o03%26apos;s and meridians 51o12%26apos;and 51o18%26apos;w, with qualitative samplings at 25 stations, distributed over 8 islands, 8 %26quot;sacos%26quot; (i.e. small bays), 4 river mouths, 2 stream mouths and 3 channels in december/1993 and january/1994, and from february/1998 to december/1999. one hundred and fifty taxa of the euglenophyceae were identified in the area. currently 23 specific and infraspecific taxa of genus euglena and 12 taxa of lepocinclis are presented. e. acus ehr. var. acus, and l. salina fritsch var. salina were the taxa best represented in the region since they occured in over 40% of the samples studied. e. bonettoi (tell %26 zaloc.) cout谷 %26 th谷rez., l. playfairiana defl. var. striata conf. and l. caudata (cunha) conr. were recorded exclusively for south america; sixteen taxa identified have a cosmopolitan distribution. ranges of some abiotic variables of the environments in which each taxon occurred in the study area are mentioned.