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INDONESIA
Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology)
Published by Masyarakat Iktiologi Indonesia
ISSN : 16930339     EISSN : 25798634     DOI : https://doi.org/10.32491
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Aims and Scope Aims: Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) aims to publish original research results on fishes (pisces) in fresh, brackish and sea waters including biology, physiology, and ecology, and their application in the fields of fishing, aquaculture, fisheries management, and conservation. Scope: This journal publishes high-quality articles dedicated to all aspects Aquaculture, Fish biodiversity, Fisheries management, Fish diseases, Fishery biotecnology, Moleculer genetics, Fish health management, Fish biodiversity.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 12 Documents
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Search results for , issue "Vol 16 No 3 (2016): October 2016" : 12 Documents clear
Length-weight relationship and condition factor of tonguesole Cynoglossus cynoglossus Hamilton 1822 (Pisces: Cynoglossidae) in Pabean Bay Indramayu, West Java Arinie Gustiarisanie; M. F. Rahardjo; Yunizar Ernawati
Jurnal Iktiologi Indonesia Vol 16 No 3 (2016): October 2016
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v16i3.32

Abstract

Length - weight relationship and condition factor are two important parameters in fisheries biology. Both of these parameters are equally used for estimating the fish stocks. This study aimed to determine the length - weight relationship and to evaluate the condition factor of tonguesole in Pabean Bay. Fish collection was carried out monthly from January to December. A total of 613 fish consists of 290 males and 323 females. Total length of males and females fish ranged from 46 to 117 mm and 61 to 126 mm with body weight ranged from 0.57 to 9.49 g, 2.36 to 16.72 g, respectively. The length - weight relationship was W = 2x10 - 5 L 2.73 (males and females), W = 5x10 - 5 L 2.56 (males), W = 2x10 - 4 L 2.22 (females) and the condition factor ranged from 0.83 to 1.22 (males), 1.29 to 1.70 (females). These results indicate that the growth pattern of fish was negative allometric and the condition of females fish was better than males. Abstrak Hubungan panjang - bobot dan faktor kondisi merupakan dua parameter penting dalam biologi perikanan. Kedua para - meter ini sama - sama digunakan dalam pendugaan stok ikan. Penelitian ini bertujuan untuk menentukan hubungan panjang - bobot dan mengevaluasi faktor kondisi ikan lidah di Teluk Pabean. Pengambilan ikan contoh dilakukan dalam interval waktu satu kali dalam seb ulan sejak bulan Januari sampai Desember 2015 , menggunakan alat tangkap jaring dan sero. Ikan contoh yang tertangkap sebanyak 613 ekor , terdiri atas 290 ekor ikan jantan dan 323 ekor ikan betina. Panjang total ikan jantan dan betina berkisar 46 - 117 mm dan 61 - 126 mm dengan bobot tubuh ikan jantan dan betina berkisar 0,57 - 9,49 g dan 2,36 - 16,72 g . Hubungan pa njang - bobot ikan lidah adalah W = 2x10 - 5 L 2,73 (jantan dan betina), W = 5x10 - 5 L 2, 56 (jantan), W = 2x10 - 4 L 2, 22 (betina) dan faktor kondisi ikan berkisar 0,83 - 1,22 (jantan) , 1,29 – 1,70 (betina). Hasil ini menunjukkan bahwa pola pertumbuhan ikan bersifat alometrik negatif dan kondisi ikan betina lebih baik daripada ikan jantan.
Enhancement of nonspecific immunity in Aeromonas hydrophilla infected carp, Cyprinus carpio (Linnaeus, 1758) by the administration of peat’s humic acid Diah Wulandari Rousdy; Nastiti Wijayanti
Jurnal Iktiologi Indonesia Vol 16 No 3 (2016): October 2016
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v16i3.33

Abstract

Peat soils are known to have a high humus content. One of the humus compounds is humic acid. Humic acid has a complex and a different chemical structure for each type of soil. Therefore humic acid has the biological potency, one of them is stimulating the nonspecific immune system. The aim of this study was to determine the effect of humic acid to the phagocytic activity of macrophages and production of neutrophils radical oxidative species (ROS) in carp (Cyprinus carpio L.) that have been infected by the bacteria Aeromonas hydrophilla. In this experiment, we used carp with body length ranged from10-15 cm. Humic acid treatment was given through the feed for 21 days. Treatments include control groups and the humic acid groups (i.e. 1, 3, 5% weight of the feed). The addition of humic acid in carp’s feed was able to increase phagocytic activity. The highest phagocytic index was shown at 3% humic acid treatment and radical oxidative species (ROS) was increased in 1% humic acid treatment. The result of challenge test with A. hydrophilla injected by intraperitoneal route showed the highest survival rate was found in the 1% humic acid treatment. Abstrak Tanah gambut diketahui mempunyai kandungan humus yang tinggi. Salah satu komponen humus dalam gambut adalah asam humat. Senyawa asam humat mempunyai struktur yang kompleks dan berbeda untuk tiap jenis tanah, sehingga memungkinkan asam humat memiliki potensi biologis, salah satunya menstimulus sistem imunitas nonspesifik. Peneli-tian ini bertujuan menentukan pengaruh pemberian asam humat dalam pakan ikan terhadap aktivitas fagosit makrofag dan produksi radikal oksidatif sel neutrofil ikan mas (Cyprinus carpio L.) yang telah diinfeksi bakteri Aeromonas hydrophilla. Ikan yang digunakan berukuran 10-15 cm. Perlakuan pada penelitian ini yaitu dosis asam humat diberikan melalui pakan selama 21 hari. Perlakuan yang diberikan mencakup kelompok kontrol dan perlakuan asam humat (1; 3; 5% bobot pakan). Penambahan asam humat dalam pakan ikan mas cenderung meningkatkan aktivitas fagositik dan pro-duksi radical oxidative species (ROS) meski tidak berbeda dengan kontrol (P>0,05). Peningkatan indeks fagositik ter-tinggi ditunjukkan oleh perlakuan asam humat 3% dan peningkatan ROS diberikan oleh perlakuan asam humat 1%. Hasil uji tantang dengan bakteri A. hydrophilla secara intraperitoneal menunjukkan bahwa asam humat konsentrasi 1% mampu menghasilkan nilai sintasan terbaik.

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