Evaluación poblacional de Pollicipes elegans. en la zona rocosa de Puerto Engabao, Cantón Playas-Provincia del Guayas

Resumen

The amount of Pollicipes elegans distributed in the rocky area was evaluated in port Engabao during the months of May to October 2015, on the coast of Playas Canton, Guayas Province. Applying the quadrat method, the amount of organisms per square meter was determined in three stations, A, B and C. Working with each tidal stratum present in the study area, where the colonies counted in the low sea predominated with average temperatures of 31.5°C, salinity of 33 ups and 5.59mg/L of dissolved oxygen, parameters that influence their growth. In the first month, about 10246 organisms were recorded at point A (low sea), a number that decreased during the study period, reaching about 7521 organisms at the same point in October. Ninety specimens were collected within the study area and their rostral carina length, wet weight (g) and length (mm) were taken. In addition, Pearson's correlation was applied where the coefficient of determination weight-height was 88.25%. The rostral carina length was also related to the total wet weight, by means of a bar chart where the juvenile population had a percentage of 4.44% of those ? 17mm and the adult population had a percentage of 95.56% of those ? 17mm in length. In the frequency table, 61.1% of the population has a rostral carina length of 30 mm, considering that the entire population registered from May to October is adult according to the empirical table proposed by Samamé and Quevedo. In addition, the number of organisms collected in three in situ samplings was estimated, where the organisms extracted were counted, with an average of 272 organisms per sampling.