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Journal ArticleDOI

Environmental assessment of polyculture farming practice based on macrobenthic assemblages: a study case at coastal area of kaliwungu, kendal (central java, indonesia)

12 Apr 2016-Vol. 78

Abstract: The purpose of this study was to determine environmental quality parameters using number of species, diversity and similarity of macrobenthic communities. This study was conducted at two locations, the Location I was a polyculture farming area, farming milkfish (Chanos Chanos) and black tiger shrimp (Penaeus monodon) and seaweed Gracilaria sp. in the coastal area of Mororejo, Kendal District, Central Java. Location II was the coastal area of PT. Plywood Indonesia, which is located adjacent to industrial activities as well as directly affected the tide. Systematic random sampling was employed, measuring physical-chemical parameters of water and sediment. Samples of macrobenthos were taken from the sediment. Data was analysed using diversity and evenness indices approach. Samples of macrobenthos were taken from the sediment using Eckman grab, then was analysed using diversity and evenness indices approach. Results showed that the Location I was dominated by Cerithidea cingulata and Terebralia sulcata (Potamididae), Minima batillaria (Batillaridae). The Location II was dominated by Cirratulus sp., Cirriformia sp. and Aphelochaeta (Cirratulidae) and Prionospio sp. (Spionidae), which are considered as indicators of disturbed area. This results implied that the use of area for both polyculture and industrial activities may lead to environmental disturbance, thus environmental coastal management need to be applied in regular basis, both temporally and spatially.
Topics: Polyculture (52%), Species evenness (51%), Macrobenthos (51%)

Content maybe subject to copyright    Report

ENVIRONMENTAL
ASSESSMENT OF
POLYCULTURE FARMING
PRACTICE BASED ON
MACROBENTHIC
ASSEMBLAGES: A STUDY
CASE AT COASTAL AREA OF
KALIWUNGU, KENDAL
(CENTRAL JAVA, INDONESIA)
by Sapto Purnomo Putro
Submission dat e : 20-Jul-2018 09:53PM (UTC+0700)
Submission ID: 983919242
File name: 5.JT_UT M_2016.pdf (517.41K)
Word count : 4215
Charact e r count : 24351





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Journal ArticleDOI
TL;DR: It can be concluded that the application of IMTA systems results in a suppressed or reduced potential impact on environmental disturbance due to aquacultural activities.
Abstract: Sustainable aquaculture needs to be considered when it comes to the utilization of water resources. The aim of this study was to apply biomonitoring using macrobenthic structures on both spatial and temporal applications of monoculture and integrated multi-trophic aquaculture (IMTA) at Tembelas Island, Kepulauan Riau Province, Indonesia. Samples of sediment were taken from three fish farm locations, namely from an IMTA site, a monoculture site, and a reference site. Macrobenthic organisms obtained through rinsing, sieving, and sorting were then identified under a stereo-microscope. Diversity of the macrobenthic assemblages was analyzed with a Shannon-Wiener index (H’). Equitability was expressed through Pielou’s evenness index. Finally, Bray-Curtis’ non-metric multi-dimensional scaling (NMDS) was used for similarities derived from log (X+1) transformed macrobenthic abundance to provide a visual representation of differences in their structure between sites over time. Results showed polychaetes exhibited differences in both variation and abundance of genera between the farm and reference site. The assemblage of macrobenthos at the IMTA site consisted of 9 genera of gastropods, 3 genera of bivalves, 5 genera of polychaetes, and 2 genera of crustaceans. At the monoculture site, 12 genera of gastropods, 4 genera of bivalves, 8 genera of polychaetes, 1 genera of crustaceans, and 1 genera of ophiuroid were observed. A relatively high abundance was observed at the reference site, with 27 genera of gastropods, 11 genera of bivalves, 3 genera of polychaetes, and 1 genera of crustacean. The favorable water conditions and possible absence of waste input from aquaculture resulting in a more suitable habitat for macrobenthic life may explain this relative abundance. Some of them were recognised as opportunistic taxa, i.e., Capitella sp., Heteromastus sp., and Lumbrinereis sp. Based on the diversity and evenness indices and the MNDS ordination, it can be concluded that the application of IMTA systems results in a suppressed or reduced potential impact on environmental disturbance due to aquacultural activities.

3 citations


References
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Book
30 Sep 1988-
Abstract: Definitions of diversity. Measuring species diversity. Choosing an index and interpreting diversity measures. Sampling problems. Structural diversity. Applications of diversity measures. Summary.

10,689 citations