Judul: Determination Of The Optimum Mesh Size For Skipjack Tuna Drift Gill NetsFrom Fish Landed On The TPI Palabuhanratu
Abstrak: The study a selectivity generally are carried out by exsperimental fishing. However Kawamura and Matsuoka based on fish landed. The objective of aims study was to estimate selectivity curve usually Matsuoka methods, to obtain frequency distribution of fork length of skipjack tuna,caught is different mesh sizeto determine mesh size of drift gill net for catching skipjack. The result indirected length distribution of skipjack tuna caught by gill net of mesh size 4, 4.5 and 5.5 inchi ranged from 442.5 – 447.5 mm, 472.5 – 477.5 mm and 527.5 – 532.5 mm, respectively value of L50% of drift gill net of mesh size 4, 4.5 and 5.5 inchi ranged from 446 – 456 mm, 477 – 494 mm and 517 – 531 mm, respectivity of this experiment can be concluded that gill net of size 4 inchi is the most optimum mesh size for capturing legal size of skipjack tuna
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Judul: Pengaruh Perbedaan Mesh Size Jaring Rampus terhadap Hasil Tangkapan Rajungan (Portunus pelagicus) di Teluk Jakarta, Muara Angke
Abstrak: The objectives of this research were to determine the catch composition and diversity of monofilament bottom gillnet in different mesh size, to count the swimming crabs (Portunus pelagicus) caught by monofilament bottom gillnet in different mesh size. This research was conducted by experimental fishing method using monofilament bottom gillnets which have different mesh size (3; 3,5 and 4 inches). The arrangement of mesh panel on the set of monofilament bottom gillnet was operated in turns during fishing trials for giving equal opportunities of fish to be caught. The statistical tests, ANOVA test and BNT test, were used to examine the number of the catch. The result showed that total catch of monofilament bottom gillnet was 405 individuals, consisted of six species. The largest catch was swimming crab (Portunus pelagicus) which made up 235 individuals or 58% of the total catch. Based on the mesh size of monofilament bottom gillnet, it can be seen that swimming crab was the main catch of the 3 inch monofilament bottom gillnet which constituted 126 individuals (54%).
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Judul: Infeksin virus rota pada anak babi
Abstrak: Virus Rota sudah lama diduga sebagai salah satu penyebab diare pada anak babi yang baru dilahirkan. Hal ini diperkuat dengan berhasilnya Mebus dan kawan-kawan mengidentifikasi virus Rota pada kejadian diare yang ter jadi pada anak sapi yang baru dilahirkan. Infeksi virus Rota merupakan hal yang serius, kejadian yang mewabah pernah dilaporkan di Amerika Serikat, Inggris, Kanada dan Australia. Sedangkan kejadian di Indonesia yang dihubungkan dengan infeksi virus Rota belum dilaporkan. Virus Rota termasuk keluarga Reo viridea. Sesuai dengan namanya, virus Rota menyerupai roda (Rota = Wheel), mengandung asam nukleat (nucleid acid) yang berupa asam nukleat ribo (ribo nucleid acid, RNA) dan berserabut ganda (double stranded), tidak mempunyai selubung (envelop atau peplos). Hewan rentan adalah hewan yang berumur sangat muda. Selain menyerang babi, dapat pula menyerang sapi, domba, rusa, anjing, kucing, tikus, kelinci, unggas dan manusia. ...
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