DIVERSITY OF REEF FISH FUNGSIONAL GROUPS IN TERMS OF CORAL REEF RESILIENCES
Abstract: Infrastructure
development in the particular sites of
Seribu Islands as well as those in main land of Jakarta City increased
with coastal population this phenomenon is likely to increase the effects to
the adjacent coral waters of Seribu Islands.
Chemical pollutants, sedimentation, and domestic wastes are the common
impact and threatening, the survival of coral reef ecosystem. Coral reef
resiliences naturaly remained on their processes under many influences of
supporting factors. One of the major factor is the role of reef fish functional
groups on controling algae growth to recolonize coral juveniles. The aim of this study to obtain data of a
herbivory and other fish functional groups of reef fishes in the Pari Islands
that are resilience indicators, or that may indicate the effectiveness of
management actions. A conventional scientific approach on fish diversity and
abundance data gathering was conducted by the underwater visual cencus.
Diversity values of the reef fish functional groups, such as the abundance of
individual fish including species, were collected and tabulated by classes and
weighted as a baseline to understand the resilience of coral reed based on
Obura and Grimsditch (2009) techniques. The results succesfully identified
several fish functional groups such as harbivores (21 species), carnivores (13
species) and fish indicator (5 species) occurred in the area. Regarding the
aspects of fish density and its diversity, especially herbivorous fish
functional group, were presumably in the state of rarely available to support
the coral reef resiliences. Resilience indices ranged from 1 (low level) to 3
(moderate level) and averages of the quality levels ranged from 227 to 674.
These levels were inadequate to support coral reef recolonization.
Keywords: Resiliences; reef
fishes; Pari Islands
Author: Isa Nagib edrus,
Muhammad Abrar Abrar
Journal Code: jpperikanangg160058
