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5 results on '"E Paujiah"'

2. Distribution Of Brittle Star (Ophiuroidea) on Rancabuaya Coastal Areas, Garut, West Java

Author

Ida Kinasih, Tuti Kurniati, Ana Widiana, Tri Cahyanto, P Hawa, and E Paujiah

Subjects
geography.geographical_feature_category, biology, ved/biology, business.industry, ved/biology.organism_classification_rank.species, Ophiocoma echinata, Distribution (economics), Coral reef, biology.organism_classification, Substrate (marine biology), Salinity, Geography, Oceanography, Habitat, Brittle star, Ophiocoma, business
Abstract

This study aims to determine the distribution of brittle star (Ophiuroidea) in the waters of Rancabuaya coasts, Garut, West Java. The study was conducted in January-April 2016. The method used purposive sampling technique. The results showed that there were eight species (Gymnolophus obscura, Ophiomastix venosa, Clarkcoma canaliculata, Ophiocoma alexandri, Ophiocoma echinata, Ophiocoma valenciae, Ophiocoma erinaceus and Ophiocoma scolopendrina) into 4 genera and 2 families. Rancabuaya coastal has habitat characteristics with three types of substrate (rock, rocky and coral reef substrate) and the water conditions based on the substrate types (DO, pH, temperature, salinity) are in normal condition and suitable for the life of the Ophiurodea. The species of Ophiocoma scolopendrine has the widest distribution compared to other species because the substrate is in accordance with habitat its species. The results of this study can be used as baseline data for future coastal waters management.

Published
2018
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5. Exposure to Lead Nitrate Alters Growth and Haematological Parameters of Milkfish (Chanos chanos).

Author

Zulfahmi I, Rahmi A, Muliari M, Akmal Y, Paujiah E, Sumon KA, and Rahman MM

Subjects
Animals, Female, Fishes, Lead toxicity, Nitrates toxicity
Abstract

To date, the effects of lead on the growth and haematological parameters of milkfish are still not well understood. For this reason the present study seeks to explain this conundrum. Sub-adult female milkfish were exposed to four concentrations of lead nitrate (0 mg/l, 42.64 mg/l, 63.97 mg/l and 85.29 mg/l) for 40 days. Results revealed that exposure to lead nitrate caused significant changes in growth and haematological parameters of milkfish. Weight gain, length gain, specific growth rate, feed efficiency, and feed conversion ratio of milkfish declined significantly at the highest concentration treatment. Moreover, lead nitrate exposure significantly decreased the value of red blood cells, hemoglobin, hematocrit, and mean corpuscular hemoglobin concentration, along with a marked increase in mean corpuscular volume and mean corpuscular hemoglobin. Several erythrocyte malformations to cells including swelling, deformation, doubling, binucleus, laceration of the membrane, hemolyzation and vacuolation were all observed., (© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)

Published
2021
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