Dwi Hindarti¹² , Zainal Arifin¹ , Tri Prartono² , Etty Riani² , Harpasis S. Sanusi²

1. Research Centre for Oceanography, Indonesian Institute of Sciences, Indonesia
2. Bogor Agricultural University, Bogor, Indonesia
Author    Correspondence author
International Journal of Marine Science, 2015, Vol. 5, No. 34   doi: 10.5376/ijms.2015.05.0034
Received: 21 Mar., 2015    Accepted: 06 May, 2015    Published: 20 May, 2015

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Hindarti1 et al., 2015, Survival of Tropical Benthic Amphipod Grandidierella bonnieroides Stephensen 1948 on Different Sediment Particle Size: Implications for Ecotoxicological Testing, International Journal of Marine Science, Vol.5, No.34: 1-6 (doi: 10.5376/ijms.2015.05.0034)
 

Effect of sediment particle size on survival of benthic amphipod Grandidierella bonnieroides Stephensn, 1948 collected in coastal waters of Indonesia was conducted in relation to the development of a standard test protocol for measuring sediment toxicity. The association of test species with sediment substrates is one of the essential factors in a sediment bioassay. The test organism should be able to inhabit various sediment types during test periods. The amphipod was exposed to four different structure of sediment substrates types: sand only (82% of particles were in the range of 63 µm – 2 mm), sand 50%: mud 50% (57% of particle size in the range of 63 µm – 2 mm and 43% of particle in the range of <63 µm), sieved mud only (sieved through 63 µm pore size), and natural mud only for 10 days without any food addition. G. bonnieroides was well associated with all test substrates. Significantly (p<0.05) reduced survival at the sand type (>80% of sand composition) was observed, when compare to the sieved mud only and the mixture of sand 50%: mud 50% types. The survival of amphipod was strongly related to total organic matter as food source in the sediment. Results of this study suggests that G. bonnieroides is suitable for the toxicity assessment of contaminated sediments that contain mostly mud. Subsequently, further comprehensive investigation on toxicological studies are needed to develop a standard sediment bioassay

Amphipod; Sediment; Bioassay; Particle size; Tropical