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KEANEKARAGAMAN DAN KELIMPAHAN BIVALVIA DI PERAIRAN PANTAI WAEMULANG KABUPATEN BURU SELATAN Efraim Samson; Daniati Kasale
Jurnal Biologi Tropis Vol. 20 No. 1 (2020): Januari - April
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (575.417 KB) | DOI: 10.29303/jbt.v20i1.1681

Abstract

Abstrak: Bivalvia merupakan anggota kelas moluska yang memiliki nilai ekonomis dan menjadikannya sering dieksploitasi berlebih oleh masyarakat. Penelitian ini bertujuan untuk mengetahui indeks keanekaragaman dan kelimpahan bivalvia di Perairan Pantai Waemulang Kabupaten Buru Selatan. Pengambilan sampel dilakukan pada kondisi air surut dengan menggunakan metode transek linear kuadrat yang disesuaikan dengan luas area Perairan Pantai Waemulang, panjang garis pantai dan relif pantai. Disamping itu, dilakukan pula pengukuran parameter fisik kimia lingkungan sebagai data pendukung. Hasil penelitian menunjukkan bahwa bivalvia yang ditemukan terdiri dari 5 Ordo, 5 Family, 6 Genus, dan 7 Spesies, yakni Anadara antiquata, Gafrarium dispar, Modiolus modiolus, Fragum unedo, Pinna bicolor, Anadara granosa, dan Tapes literatus. Nilai kelimpahan tertinggi terdapat pada spesies Anadara antiquata, yakni 5.495 dan kelimpahan relatifnya 16.22%. Sedangkan nilai kelimpahan terrendah terdapat pada spesies Tapes literatus, yakni 4.272, dan kelimpahan relatifnya 12.61%. Nilai indeks keanekaragaman, yakni 1.93 atau termasuk kategori sedang dan indeks dominansi sebesar 0.14 yang menunjukkan tidak ada dominansi spesies. Hasil pengukuran parameter fisik kimia pun masih berada dalam kisaran optimal sesuai dengan standar baku mutu air laut untuk biota laut. Guna pemanfaatan dan pengelolaan bivalvia secara berkelanjutan di Perairan Pantai Waemulang Kabupaten Buru Selatan maka diperlukan penelitian sejenis secara berkala.Kata Kunci: Bivalvia, Keanekaragaman, Kelimpahan, Waemulang.Abstract: Bivalves is a member of the mollusk class with economic value and makes it often over exploited by the community. This study aims to determine the diversity index and abundance of bivalves in the Waemulang Coastal Waters of South Buru Regency. Sampling is done at low tide conditions using the linear quadratic transect method that is adjusted to the area of Waemulang Coastal Waters, coastline length and coastline. Besides that, physical chemical parameters were also measured as supporting data. The results showed that bivalves were found to consist of 5 Orders, 5 Families, 6 Genera, and 7 Species, namely Anadara antiquata, Gafrarium dispar, Modiolus modiolus, Fragum unedo, Pinna bicolor, Anadara granosa, and Tapes literatus. The highest abundance was found in Anadara antiquata, which was 5,495 and its relative abundance was 16.22%. While the lowest abundance was found in Tapes literatus, which was 4.272, and the relative abundance was 12.61%. Diversity index value is 1.93 or including a medium category and dominance index of 0.14 which shows no species dominance. The results of the measurement of physical chemical parameters are still in the optimal range in accordance with sea water quality standards for marine biota. For the sustainable use and management of bivalves in the Waemulang Coastal Waters, South Buru Regency, regular research is needed.Keywords: Bivalves, Diversity, Abundance, Waemulang.
EFFECTIVENESS OF FINGER LEAF INFUSION (Psophocarpus tetragonolobus (L.) DC) ON THE MALARIA MODEL OF RATS (Rattus norvegicus) Martha Kaihena; Efraim Samson
RUMPHIUS Vol 1 No 1 (2019): RUMPHIUS Pattimura Biological Journal
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/rumphiusv1i1p025-032

Abstract

Winged bean is a type of plant that is used as traditional medicine. This study aims to determine the effectiveness of winged bean leaf infusion (Psophocarpus tetragonolobus(L.) DC) against white rat (Rattus norvegicus) model of malaria. The method used in this research is completely randomized design with 4 treatment groups and 3 replications consisting of a control group without being given an infusion (P1), a group that was given an infusion of concentrations: 31.25 mg/mL (P2), 62.5 mg/ mL(P3), and 125 mg/mL (P4). This study used 20 male rats, of which 5 rats including as donor mice. Donor mice were infected with Plasmodium berghe and left until the parasitemia percentage reached> 20%. Then 4 groups of model mice were infected with Plasmodium berghei. Observations were made for 7 days, starting from day 0 (before treatment), 4 days during treatment and 2 days after treatment. The percentage of parasitemia was calculated starting from the day before administration of winged bean leaf infusion (IDK) until the 7th day. The results of this study indicate that IDK can inhibit parasite growth by reducing the level of parasitemia along with increasing concentrations, namely (P2) of 73.78%; (P3) of 89.33%; and (P4) of 93.69%. It can be concluded has potential in inhibiting the growth of Plasmodium berghei in the rat model of malaria with an effective concentration of 31.25 mg/mL.