Judul: Potency estimation, carrying capacity and exploitation for sustainable simping population (Placuna placenta, Linn 1758) management
Abstrak: Exploitation activity using garok and habitat change would damage the availability of simping resources. This pattern was shown as the size and biomass of Kronjo’s fishermen catchment has been decreasing. In order to conduct the sustainably usage, a study of simping stock potency, exploitation level, recovery ability and carrying capacity of exploitation area is needed. These research conducted at Kronjo Bay from March-September 2008. Main topic are 1) distribution of simping population, 2) fishing intensity and 3) turnover rate and turn over time, production, biomas, P/B ratio, production capacity. Data analysis used statistic descriptive, one way anova and simulation model using Microsoft excel. The result shows that parameters COD, DO and potential TSS distracted the simping survival, while other parameters still supported the simping survival. Abundance stock potency was high at zone 2, zone 1 and zone 3. Stock biomass potency was also high at zone 2, zone 3 and sone 1. The recovery ability of the stock at zone 1 was 18,20 g.m-2.day-1, zone 2 was 19,37 g.m-2.day-1, and zone 3 was 8,76 g.m-2.day-1. Total growth during exploitation stage at zone 1 was 56 g.m-2.day-1, zone 2 was 55,57 g.m-2.day-1 and zone 3 was 26,87 g.m-2.day-1. While exploitation at zone 1 was 63,5 g.m-2.day-1, zone 2 was 79,6 g.m-2.day-1and zone 3 was 20,8 g.m-2.day-1. Biomass production ratio (time recovery) (B/P ratio) at zone 1 was 3,1 days, at zone 2 was 2,9 days and zone 3 was 3,1 days. From the result above, it is concluded that in zone 3, there is a potency of sustained simping usage, while at zone 1 and 2, there would need a conservation activity in order to achieve the growing biomass to balance the exploitation. Exploitation carrying capacity was high at zone 2 and 1, while at zone 3, the exploitation carrying capacity was lower. In production operation wise, the approaching of carrying capacity, catchment quota, catchment intensity and catchment area management should be conducted as follow up steps of management.
Keyword: Potency Estimation, Carrying Capacity, Simping Population, Placuna placenta

Judul: Pola perubahan kepadatan dan biomassa populasi simping (Placuna placenta,linn, 1758) di perairan Kronjo, kabupaten Tangerang, Banten
Abstrak: Kerang simping (Placuna placenta) merupakan jenis kerang dengan nilai ekonomis tinggi yang pemanfaatannya terus meningkat dari tahun ke tahun. Di perairan Kronjo kerang ini ditangkap dengan menggunakan "garok". Hal ini dikhawatirkan dapat mempenganruhi struktur populasi simping. Tujuan penelitian adaIah untuk mengetahui pola perubahan kepadatan, pola perubahan biomassa dan pertumbuhan populasi kerang serta kondisi perairannya.
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Judul: Infeksi Virus Parainfluenza Pada Anjing
Abstrak: Virus parainfluenza anjing termasuk famili Paramyxoviridae, berbentuk pleomorf dengan ukuran bervariasi (bergaris tengah antara 100-500 nm), berpembungkus peka ether, berisi genom RNA dan secara serologis mempunyai kesamaan dengan virus SV-5 kera; dikenak sebagai salah satu kausa penting dari sindrom "kennel cough". Infeksinya dapat mengenai anjing semua umur yang belum pernah terinfeksi atau mendapatkan vaksinasi mengakibatkan gejala klinis ringan yang terbatas pada traktus respirasi atu infeksi yang secara klinis tidak memperlihatkan gejala nyata. Gejala klinis yang nampak setelah masa inkubasi (1-5 hari) terlewati berupa batuk yang tidak berat selama beberapa hari, berbagai tingkat tonsilitis dan pharyngitis dan kadang-kadang ditemukan kenaikan temperatur rektal antara 1-2 derajat C dari temperatur normal rat-rata. Anjing terinfeksi mengandung virus pada traktus respirasi bagian atas dan bawah serta limfonoduli sampai hari ke 9 setelah infeksi. Penyebaran virus antar anjing terjadi secara aerogen.
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