Studi Bioekologi Ikan Gelodok (Famili : Gobiidae) di Pantai Bali Desa Mesjid Lama Kecamatan Talawi Kabupaten Batu Bara Provinsi Sumatera Utara

Abstract

Bali beach area is one of the beaches in the Batu Bara, precisely located in the Mesjid Lama Village, Sub-district, Talawi, District of Batu Bara, North Sumatra. There is a coastal mangrove forests in this area, where has an area of 46 ha. Mangrove forests are broad enough that a good habitat for Mudskipper. The research aims to determine bioecology of Mudskipper. Bioecology of Mudskipper known by taking of the samples and then analyze the data of length weight relationships, population density, population distribution patterns of Mudskipper, substrate and the tidal and enviromental influences on the Mudskipper density. The research was conducted from March until May 2014. The Method of the research is purposive sampling. For example, fishing. The Stations or area was used consisted of three transect of stations with beaches, mangroves, and rivers. There are four types of fish can be found in those areas, which are P. chrysospilos, P. gracilis, B. boddarti and Pn. schlosseri. If we sorted that length weight relationship has value 3.2562 cm, 0.9065 cm, 3.06 cm, and 3.0052 cm. The highest density occurs at high tide and low tide in the coastal areas at the river, with a clustered distribution patterns. The impact of tidal and environmental on the Mudskipper density.