International Journal of Fisheries and Aquatic Research

Authors
M Tajuddin Noor, Ully Wulandari

Abstract
Sidoarjo is one of the area impacted directly from sedimentation due to overflow of lapindo mud which resulted in the formation of a new island called Pitu Gajahan. The island is mud, so overgrown with mangroves. This research was conducted to find out the density and diversity of mangrove as well as knowing the composition of the different types of catches by fishing on site research. The method used was a survey using a transect quadrants and the interview against the activity of catching fish by local fishermen. The results showed that mangrove diversity index was 0.6154-1.3533 contains the categories of low-medium. The value of the density is 11.5877.8 trees per acre and categories include well-being. The composition of the catch is that the dominant research location is keting (Arius nenga).