Growth Rate and Survival of Hawksbill Turtle (Eretmochelys imbricata) in Captivity Sabira Island M. Isnin Noer(a*), Ratna Komala(a), Mega Putri(a), Anandhita Arnelya(b), Dwi Ayu Komsiatun(b)
a) Jl. Rawamangun Muka, RT.11/RW.14, Rawamangun, Pulo Gadung, Kota Jakarta Timur, Daerah Khusus Ibukota Jakarta 13220
b) Faculty of Mathematics and Natural Sciences
Abstract
Hawksbill turtles (Eretmochelys imbricata) are categorized with critically endangered status in the IUCN red list. This status explains that now the population of sea turtles in nature is declining. The decline in population is caused by various threats such as the presence of predators, wild capture, taking of turtle body parts, and the influence of environmental factors. This study aims to determine the growth rate and survival of hawksbill turtle hatchlings in captivity, as well as to determine the environmental factors that affect. The method used is descriptive with observation techniques. The data were analyzed with Principle Component Analysis (PCA) using the SPSS (Statistical Product and Service Solutions) program Version 20.0. The stages of research consist of, observation of hatchling growth, observation of hatchling survival, observation of environmental factors of water quality. The results of the study on the growth rate and survival of hatchlings resulted in a growth rate value (SGR) of 3.23% and survival (SR) of 48%. With an increase in the length of the carapace by 20%, the width of the carapace by 20%, as well as the body weight of the hatchling by 35%. The results of the study showed that the growth rate and survival of hawksbill turtle hatchlings in Sabira Island breeding are still relatively low in management in captivity, because there are still hatchlings that die during the study. Based on the results of the PCA analysis, the factors that most influence the growth rate and survival of hawksbill turtle hatchlings are feed and water salinity.
