Open AccessStructure of zooplankton community in Lake Maninjau. Case study in Nagari Sungai Batang - Agam, West Sumatra
Author(s) -
Muhammad Badjoeri
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/535/1/012056
Subject(s) - zooplankton , cladocera , community structure , abundance (ecology) , predation , ecology , habitat , environmental science , biology , geography
The presence of zooplankton plays an important role in the lake ecosystem. This study aimed to investigate the community structure of zooplankton in Lake Maninjau, especially in the area of PN Nagari Sungai Batang. Lake Maninjau contributes greatly to the community and regional economy. This research was conducted in April, July, August, September, October, and November 2018 at 3 sampling stations in Lake Maninjau, Nagari Sungai Batang, West Sumatra. The zooplankton was collected using a vertical zooplankton net from bottom to surface. The samples were preserved in a 5% Lugol’s solution. The zooplankton was identified based on several references under a binocular microscope. The abundance of zooplankton was calculated using Sedgewick Rafter Cell. Some physicochemical parameters of water were also observed. The results of zooplankton analysis found 3 genera of Protozoa, 13 genera of Rotifers, 5 genera of Cladocera, and 1 genus of Copepods and Nauplius. The results showed the diversity of zooplankton in Lake Maninjau was categorized as moderate level, there were no dominant species, and the species was evenly distributed. Predation has occurred in the zooplankton community, which is generally based on body size or ability to move. Generally, the structure of the zooplankton community in Lake Maninjau is influenced by water quality factors in their habitat.