Judul: Analisis Spawning Potential Ratio (SPR) Perikanan Pelagis di Selat Sunda
Abstrak: Potensi sumberdaya ikan pelagis di Selat Sunda meliputi ikan kembung lelaki (Rastrelliger kanagurta), selar kuning (Selaroides leptolepis), dan tembang (Sardinella fimbriata). Spawning Potential Ratio (SPR) digunakan untuk mengevaluasi status stok ikan pelagis dengan kondisi data yang minim. Penelitian ini bertujuan untuk menentukan tingkat potensi keberlanjutan ikan pelagis kecil di Selat Sunda melalui pendekatan SPR. Penelitian ini dilaksanakan pada bulan April sampai Oktober 2021 dengan menggunakan data sekunder tahun 2013 hingga 2018 dari PPP Labuan. Data dianalisis menggunakan Barefoot Ecologist. Hasil penelitian mengenai rasio F/M pada ikan kembung lelaki tertinggi pada tahun 2013 sebesar 20,57 kali, ikan selar kuning tahun 2013 sebesar 4,36 kali, dan ikan tembang tahun 2018 sebesar 65,94 kali. F/M adalah rasio kematian akibat penangkapan (F) terhadap mortalitas alami (M). Rasio F/M pada setiap tahunnya bernilai >1, artinya jumlah kematian ikan akibat penangkapan lebih tinggi daripada jumlah kematian alami. Analisis SPR gabungan dari ikan kembung lelaki, selar kuning, dan tembang yang diperoleh sebesar 0%, 8%, dan 3%. Nilai SPR ikan kembung lelaki, selar kuning, dan tembang relatif rendah (kurang dari 20%) Hal tersebut mengindikasikan bahwa sumberdaya ikan berada pada kondisi over-exploited dan terancam kelestariannya. Kata kunci: ikan pelagis, rasio potensi pemijahan, Selat Sunda, Sunda Strait had potential resources for pelagic fish such as Indian mackerel (Rastrelliger kanagurta), yellow-striped scad (Selaroides leptolepis), and fringe scale sardinella (Sardinella fimbriata). Spawning Potential Ratio (SPR) is used to evaluate pelagic fish stocks with poor data fisheries. This study aimed to determine the potential sustainability of small pelagic fish from PPP Labuan; through the SPR approach. This research was carried out from April to October 2021 and used secondary data from 2013 to 2018 from the fishing port landed PPP Labuan. Data were analyzed using the Barefoot Ecologist. The study results on the F/M ratio in the highest Indian mackerel found in 2013 at 20.57 times, yellow-striped scad in 2013 at 4.36 times, and fringe scale sardinella in 2018 at 65.94 times. The F/M is the ratio of fishing mortality (F) to natural mortality (M). The F/M ratio every year is >1, which means the fishing mortality is higher than natural mortality. The combined SPR analysis of Indian mackerel, yellow-striped scad, and fringe scale sardinella was obtained at 0%, 8%, and 3%. The SPR value of Indian mackerel, yellow-striped scad, and fringe scale sardinella was relatively low (less than 20%). That was indicated that the fish resources in over-exploited condition and endangered. Keywords: pelagic fish, spawning potential ratio, Sunda Strait
Keyword: Pelagic fish, Spawning Potential Ratio, Sunda Strait

Judul: Pelagic and Demersal Fishes Vulnerability Level in PPP Labuan, Banten
Abstrak: Sumber daya ikan di perairan Selat Sunda yang bersifat open access dan common property berpotensi menimbulkan risiko kerentanan pada ikan. Tingginya tingkat kerentanan ikan dapat memengaruhi keberlanjutan perikanan tangkap. Penelitian ini bertujuan untuk menentukan tingkat kerentanan sumber daya ikan pelagis dan demersal di perairan Selat Sunda yang didaratkan di Pelabuhan Perikanan Pantai (PPP) Labuan, Banten. Contoh ikan yang diteliti terdiri dari ikan pelagis yang terdiri dari ikan kembung, selar bentong, dan tongkol, serta ikan demersal yang terdiri dari ikan swanggi dan kurisi. Pengambilan contoh dilaksanakan pada bulan Juni hingga November 2022 di PPP Labuan dengan menggunakan metode pengambilan contoh acak sederhana (PCAS). Analisis indeks kerentanan stok ikan diduga dengan metode Productivity and Suceptibility Analysis (PSA) menggunakan parameter produktivitas dan suseptibilitas. Kedua parameter tersebut memiliki seperangkat atribut yang berkaitan dengan tingkat kerentanan sumber daya ikan. Hasil penelitian menunjukkan bahwa nilai indeks kerentanan ikan kembung, tongkol, selar bentong, swanggi, dan kurisi secara berturut-turut yaitu sebesar 1,24, 1,41, 1,04, 1,62, dan 1,48. Kelima jenis ikan contoh memiliki nilai indeks kerentanan yang termasuk ke dalam kategori kerentanan rendah karena masih berada di bawah 1,8. Ikan selar bentong dianggap paling mampu bertahan di alam karena memiliki produktivitas yang paling tinggi. Ikan swanggi dianggap paling rentan terhadap kegiatan penangkapan karena selain memiliki indeks kerentanan tertinggi juga memiliki suseptibilitas yang paling tinggi., Fish resources in Sunda Strait which are open access and common property have the potential to pose a vulnerability risk to fish. High vulnerability level of fish can affect the sustainability of capture fisheries. This study aims to determine the level of vulnerability of pelagic and demersal fish resources in the waters of the Sunda Strait which are landed at the Coastal Fishing Port (PPP) Labuan, Banten. The samples consisted of pelagic fish consisting of Rastrelliger faughni, Auxis rochei, and Selar crumenophthalmus, also demersal fish consisting of Priacanthus tayenus and Nemipterus japonicus. Sampling was conducted from June to November 2022 at PPP Labuan using the simple random sampling method. Analysis of the vulnerability index was estimated using the Productivity and Susceptibility Analysis (PSA) method with productivity and susceptibility parameters. Both of these parameters have a set of attributes related to the vulnerability level of fish resources. The results showed that the vulnerability index values for Rastrelliger faughni, Auxis rochei, Selar crumenophthalmus, Priacanthus tayenus, and Nemipterus japonicus were respectively 1,24, 1,41, 1,04, 1,62, and 1,48. The five sample fish species are included in the low vulnerability category because the the vulnerability level of each species is still below 1,8. Selar crumenophthalmus is considered the most capable of surviving in nature because it has the highest productivity. Priacanthus tayenus is considered the most vulnerable to fishing activities because beside having the highest vulnerability index, it also has the highest susceptibility.
Keyword: PPP Labuan, productivity, susceptibility, vulnerability

Judul: Gambaran Leukosit Domba Ekor Tipis yang Diinfeksi Haemonchus contortus.
Abstrak: The aim of this study was to investigate the effect of Haemonchus contortus infection to white blood cell profile of Javanese thin tail sheep. Twenty males Javanese thin tailed sheep were divided into five groups, namely infected group of 500 L3, 1000 L3, 2000 L3, 4000 L3 and uninfective group as control. The blood and fecal samples were collected from rectum before and three weeks after infection. The blood samples were collected using venoject® from Jugular vein. The fecal samples were collected directly from rectum. The blood samples were examined to determine total of white blood cell (leukocytes) and white blood cell differential, whereas fecal samples to determine egg per gram. The result showed that Haemonchus contortus infections cause an increased total of leukocyte but were not significantly different among of level infection doses (P>0.05). Number of eosinophils were significantly different among uninfected group (P<0.05), but were not significantly different in number of lymphocyte, monocyte, and neutrophil (P>0.05). There where positively correlated significantly between the amount of egg per gram (EPG) and profile of eosinophil (P<0.05), however were negatively correlated significantly between the amount of egg per gram (EPG) and neutrophil’s profile (P<0.05). There where no correlation significantly between the amount of egg per gram (EPG) and profile of white blood cell, lymphocyte, and monocyte (P>0.05).
Keyword: differential leukocyte, Haemonchus contortus, leukocyte, sheep