Katrina Dyann May Pastolero, Kristine Suaverde, Romeo Torreta Jr. (March 2002)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
This Pretest-Posttest Control Group Design study determined the grazing behavior of the adult male Artemia salina through its grazing behavior using three different microalgal species: C. calcitran, T. batan, and C. vulgaris.
Eighteen 500mL bottles covered with carbon paper were used, assigned as control and experimental bottles with three replicates for each treatment, introduced with fresh seawater, and introduced the initial algal density of 100,000 cells/mL. Twenty adult male Artemia salina of the same age were randomly added into each experimental bottle. The bottles were then placed inside a dark room for 24 hours and for every 4 hours samples were gathered in each bottle and were placed in the haemacytometer and viewed under the stereomicroscope, counting the microalgae on each sample. Each bottle was labeled as CC (C. calcitran), CV (C. vulgaris), and TB (T. batan).
One-Way Analysis of Variance and the Scheffe were employed as inferential statistical tools in determining the significant difference between treatments. The man was also employed as statistical tool in determining the grazing, clearance, and ingestion rates of the adult male A. salina.
Results showed that C. calcitran was highly favored by the adult male A. salina.