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Abstrak :
Aktivitas manusia di sekitar tambak silvofishery berpotensi menyumbang limbah dan meningkatkan ancaman polusi logam berat. Jumlah limbah logam berat, terutama dari industri yang masuk ke dalam perairan tambak diduga memengaruhi organisme akuatik yang berada di dalamnya. Keong bakau (Telescopium telescopium) dan kepiting bakau (Goniopsis pelii) adalah biota non-budaya yang hadir di tambak silvofishery dan dikonsumsi oleh manusia. Penelitian ini bertujuan untuk menguji kandungan logam berat pada keong bakau, kepiting bakau dan sedimen pada tambak silvofishery Blanakan-Subang. Pengambilan sampel dilakukan pada bulan April 2018, di tiga stasiun dengan metode purposive random sampling. Kandungan logam berat dianalisis menggunakan spektrofotometri serapan atom. Hasil penelitian menunjukkan bahwa kandungan Pb tertinggi terdapat pada keong bakau di stasiun 3 sebesar 19,46 mg kg. Kandungan Cu dan Zn tertinggi terdapat pada kepiting bakau di stasiun 2 masingmasing sebesar 33,77 mg/kg dan 22,54 mg kg. Secara umum, pada sedimen kandungan Zn Cu Pb. Kandungan Pb, Cu dan Zn tertinggi di sedimen terdapat di stasiun 2 masing-masing sebesar 19,55 mg kg, 6,76 mg kg, dan 68,56 mg kg. Uji Manova dua arah menunjukkan bahwa jenis/ variabel (keong bakau, kepiting bakau, sedimen) dan lokasi (stasiun, inlet/ outlet) berpengaruh nyata terhadap nilai Pb, Cu dan Zn. Nilai faktor biokonsentrasi 1 menunjukkan bahwa keong bakau dan kepiting bakau memiliki kecenderungan untuk mengakumulasi logam berat. Berdasarkan BPOM No 03725-B-SK-VII-89, masyarakat harus lebih berhati-hati dalam mengkonsumsinya. Selanjutnya, keong bakau dan kepiting bakau dapat digunakan sebagai bioindikator untuk mengendalikan pencemaran lingkungan.

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Human activities around the silvofishery ponds potentially contribute waste and promote heavy metals pollution threats. High input of this metals, especially from industry waste that entered the ponds suspected affect aquatic organism inside it. Mangrove snail (Telescopium telescopium) and mangrove crab (Goniopsis pelii) are non-cultured biota which is present at silvofishery ponds and consumed by humans. This research aimed to determine metals content in mangrove snail, mangrove crab and sediment at Blanakan silvofishery ponds. Sampling was done on April 2018, at three stations using purposive random sampling. Metals content were analysed using atomic absorption spectrophotometry. Result showed that the highest Pb content was in mangrove snail at station 3 at 19,46 mg kg. The highest Cu and Zn content was in mangrove crab at station 2 at 33,77 mg kg and 22.54 mg kg respectively. Generally, metals content in sediment was Zn Cu Pb. The highest content of Pb, Cu and Zn in sediment was at station 2 at 19,55 mg kg, 6,76 mg kg, dan 68,56 mg kg respectively. Manova test showed that variables (mangrove snail, mangrove crab, sediment) and location (station, inlet/outlet) significantly affect the value of Pb, Cu and Zn. The bioconcentration values 1 showed that mangrove snail and mangrove crab has a tendency to accumulate heavy metals. Based on BPOM No 03725-B-SK-VII-89, people must be more careful in consuming them. In the future, mangrove snail and mangrove crab can be used as bioindicator to control environmental pollution.

Abstrak :
ABSTRAK
Kepiting Bakau Syclla serrata merupakan salah satu komoditas ekspor perikanan yang bernilai ekonomis tinggi. Tujuan penelitian ini secara umum adalah menghitung besarnya usaha penangkapan kepiting bakau, pemanfaatan dan menentukan strategi pengelolaan yang berkelanjutan kepiting bakau di Kabupaten Sambas. Penelitian dilakukan pada bulan Desember 2015 - Maret 2016 di Kecamatan Paloh di Kabupaten Sambas dengan metode survey darat dan laut.Analisis terhadap karakteristik biologi meliputi nisbah kelamin, TKG, Fekunditas, faktor kondisi, Lc, Lm, dan ukuran layak tangkap. sedangkan analisis pengelolaan yang berkelanjutan menggunakan metode Rapid Appraisal for Fisheries RAPFISH . Hasil Analisis Potensi Lestari MSY Kepiting bakau di Kabupaten Sambas adalah 94.040 kg/unit dengan Fmsy adalah 52 unit dan CPU Eopt adalah 1679.2 kg/unit. Kisaran panjang karapas kepiting bakau jantan yang tertangkap adalah 62 mm - 152,5 mm, sedangkan rajungan betina mempunyai ukuran 67,5 -132,5 mm. Pola pertumbuhan bersifat alometrik positif. Kepiting bakau jantan memiliki persentase tertangkap lebih tinggi dibandingkan betina 1,25:1 . Persentase kepiting bakau matang gonad dan belum matang adalah 56,57 dan 43,43 .Status keberlanjutan pengelolaan Kepiting Bakau di Kabupaten Sambas secara multidimensi dalam kondisi cukup berkelanjutan nilai indeks 53,1 . Strategi yang perlu dilakukan berdasarkan skala prioritas adalah 1 Pengaturan alat bantu penangkapan ikan, 2 Penentuan selektivitas alat penangkapan ikan, 3 Pembatasan upaya penangkapan ikan, 4 Peningkatan kualitas SDM, 5 Pengaturan perubahan target tangkapan sementara sesuai musim, 6 Pengelolaan hasil tangkapan sampingan , 7 Peningkatan pengawasan penangkapan ikan, 8 Pengembangan alat penangkapan ikan yang ramah lingkungan, 9 Meningkatkan nilai GDP, 10 Pengaturan kepemilikan sumberdaya, 11 Kebijakan dalam pengelolaan perikanan mempertimbangkan kearifan lokal nelayan setempat, 12 Meningkatkan Peran Sektor Perikanan, dan 13 Status konflik.

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ABSTRACT
Mangrove crabs Syclla serrata is one fishery export commodities with high economic value. The purpose of this research in general is to calculate the amount of fishing effort mud crab, utilization and determine the strategy of sustainable management of mangrove crabs in Sambas district. The study was conducted in December 2015 March 2016 in the Paloh in Sambas Regency with land and sea survey methods.The analysis of the biological characteristics include sex ratio, TKG, fecundity, condition factor, Lc, Lm, and a decent sized catch. whereas sustainable management analysis using rapid appraisal methods for Fisheries RAPFISH . Result Analysis of Potential Lestari MSY mangrove crab in Sambas district is 94 040 kg unit with Fmsy is 52 units and CPU Eopt is 1679.2 kg unit. The range of mangrove crab carapace length of males caught is 62 mm 152.5 mm, while the female crabs between size 67.5 132.5 mm. Allometric growth pattern is positive. mangrove crabs caught males have higher percentage than females 1.25 1 . Percentage of mangrove crabs mature and immature gonads was 56.57 and 43.43 . The status of sustainability management in multidimension point of view, Mangrove crab activities in Sambas Regency is sustainable enough condition index value of 53.1 . The strategies that need to do based on priority scale are 1 setting up the fishing tools, 2 Determination of the selectivity of fishing tools, 3 Restriction of fishing activities, 4 improving the quality of human resources, 5 Settip up the changes of temporary target catch according to season, 6 Management of side catches value by catch , 7 Improving monitoring of fishing, 8 Developing of fishing tools that are environmentally friendly, 9 Increase the value of GDP, 10 Admission of resource ownership, 11 Policy in fisheries management that considering the value of local fishermes, 12 Increase the Role of Fisheries Sector, and 13 Status of conflict.

Abstrak :
Kepiting soka memiliki permintaan yang tinggi, baik di pasar internasional maupun regional. Indonesia sebagai negara pengekspor, belum mampu memenuhi permintaan pasar terhadap kepiting soka. Mempercepat molting dapat meningkatkan produksi. Molting dapat dipercepat melalui metode pemotongan kaki jalan. Kelompok Uji 1 (KU 1) dipotong dua buah kaki jalan, Kelompok Uji 2 (KU 2) dipotong empat kaki jalan, dan Kelompok Uji 3 (KU 3) dipotong enam buah kaki jalannya. Laju molting pada KU 1, KU 2, dan KU 3 sama, yaitu selama 46 hari, sedangkan pada Kelompok Kontrol (KK) laju moltingnya 52 hari. Hasilnya menunjukkan Kelompok Uji 1, 2 dan 3 memiliki laju molting yang lebih cepat ± sembilan hari bila dibandingkan dengan KK, namun tidak ada perbedaan waktu molting antara KU 1, KU 2, dan KU 3 terhadap perlakuan yang diberikan.

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Abstract
In the international and also regional trade, soft shell crab has a highly demand. Indonesia is a perfect place for soft shell crab cultivation. For increasing the number of soft shell crab production, people needs a methode that has been tested. Removing several number of limbs has been known as a method to stimulates the precocious molt in Scylla serrata. Two limbs were removed in group 1, four limbs were removed in the group 2, and six limbs were removed for group 3. The result shows that group 1, group 2, and group 3 has molting after 43 days since the limbs removal. Group 1, 2 and 3 has a faster molting rate than Control Group (52 days), but there?s no different result between the group test.

Abstrak :
Logam berat yang mencemari sungai dapat mengontaminasi air dan hasil tangkapan pada tambak. Tambak Blanakan merupakan tempat budidaya hasil tangkapan perairan yang terletak di Kabupaten Subang, Jawa Barat dengan sumber air laut dan air tawar yaitu sungai Blanakan. Penelitian ini bertujuan untuk menganalisis kandungan logam berat tembaga (Cu) dan kadmium (Cd) pada sedimen dan kepiting bakau Scylla serrata, serta menentukan nilai bioconcentration factor (BCF) pada kepiting bakau di tambak Blanakan. Sampel sedimen diambil pada tiga stasiun secara purposive sampling pada tiga titik yaitu inlet, midlet, dan outlet sebanyak 500 g, sedangkan kepiting bakau diambil pada tiga stasiun sebanyak 5 ekor tiap stasiun. Sampel sedimen dipanaskan menggunakan oven selama 48 jam di suhu 60oC dan kepiting (yang sudah dipisahkan jaringan lunaknya). Analisis logam berat tembaga (Cu) pada sedimen dan kepiting bakau dilakukan menggunakan metode Atomic Absorption Spectrophotometry (AAS), sedangkan logam kadmium (Cd) pada sampel sedimen dianalisis menggunakan Inductively Coupled Plasma (ICP). Hasil analisis kandungan tembaga (Cu) pada sampel sedimen memiliki rata-rata sebesar 5,5367 – 8,31 ppm, sedangkan analisis tembaga (Cu) pada sampel kepiting bakau memiliki rata-rata sebesar 27,98 ppm. Hasil analisis kandungan kadmium (Cd) pada sedimen tidak terdeteksi, sedangkan kandungan kadmium (Cd) di kepiting bakau memiliki rata-rata 0,12 ppm. Nilai BCF tembaga (Cu) pada kepiting bakau adalah BCF > 2 yang menunjukkan bahwa kepiting bakau di tambak Blanakan merupakan konsentrator makro. ......Heavy metals that pollute rivers can contaminate water and catches in ponds. Blanakan pond is a place for cultivating water catches located in Subang Regency, West Java, with sources of sea water and fresh water, namely the Blanakan river. This study aims to analyze the content of heavy metals copper (Cu) and cadmium (Cd) in sediments and mud crabs Scylla serrata, and determine the value of bioconcentration factor (BCF) in mud crabs in Blanakan ponds. Sediment samples were taken at three stations by purposive sampling at three points, namely inlet, midlet, and outlet as much as 500 g, while mud crabs were taken at three stations with 5 fish per station. Sediment samples were heated using an oven for 48 hours at 60oC and crabs (which had been separated from the soft tissue). Analysis of heavy metal copper (Cu) in sediments and mud crabs was carried out using the Atomic Absorption Spectrophotometry (AAS) method, while metal cadmium (Cd) in sediment samples was analyzed using Inductively Coupled Plasma (ICP). The results of the analysis of the copper (Cu) content in the sediment samples had an average of 5.5367 – 8.31 ppm, while the copper (Cu) analysis in the mud crab samples had an average of 27.98 ppm. The results of the analysis of the content of cadmium (Cd) in the sediment was not detected, while the content of cadmium (Cd) in mud crabs had an average of 0.12 ppm. The BCF value of copper (Cu) in mangrove crabs is BCF > 2 which indicates that the mangrove crabs in Blanakan ponds are macro concentrators.

Abstrak :
ABSTRAK
Telah dilakukan penelitian mengenai struktur komunitas kepiting dan potensi kepiting bakau Scylla oceanica di ekosistem mangrove Kecamatan Panimbang, Banten, bertujuan untuk mengetahui stuktur komunitas kepiting dan potensikepiting bakauserta mengetahui indeks persepsi masyarakatyang tinggal di sekitar hutan mangrove. Pengambilan sampel vegetasi mangrove menggunakan metode Line Transect Plot,dan untuk sampel kepiting dilakukan dengan metoda transek pada tiga stasiun pengamatan. Setiap stasiun dibuat tiga plot dengan tiga kali ulangan. Hasil yang diperoleh ditemukan 6 jenis mangrove yaituAvicennia alba, Bruguiera sp, Excoecaria agollocha, Lumnitzera littorea, Rhizopora apiculata, dan Sonneratia alba serta4 suku kepiting dengan 14 jenis dari 354 kepiting, yaitu sukuGrapsidae, Sesarmidae, Ocypodidae, dan Dotillidae. Rata-rata kepadatan kepiting 36 ind/m2 - 43 ind/m2, indeks keanekaragaman 1,86-2,01, indeks keseragaman 0,706 - 0,763, indeks dominansi 0,142 - 0,166, dan pola distribusi mengelompok Id = 1,282-1,494 . Indeks kesamaan antara stasiun 1, 2, dan 3, hampir sama 78,01 - 85,96 . . Rata-rata kepadatan kepiting bakau Scylla oceanica yaitu 19,1ekor/100 m2. Berat kepiting bakau betina berkisar 95 ndash; 495 g dan kepiting jantan berkisar 100 ndash; 420 g. Lebar karapaks kepiting bakau betina 6,8 ndash; 14,5 cm dan kepiting bakau jantan 7,1 ndash; 13,5 cm. Pola pertumbuhan kepiting bakau jantan dan betina menunjukkan tipe allometrik negatif, dengan pola distribusi mengelompok Id = 1,5176 . Indeks persepsi masyarakat tentang potensi kepiting bakau di Panimbang, Banten tergolong baik 78 . Potensi hasil tangkapan kepiting bakau per bulan sebesar 2.820 ndash; 4.440 kg dan pendapatan penduduk dari sektor ini berkisar Rp169.200.000,00- sampai Rp266.400,00,- per-bulan.

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ABSTRACT
A research has been conducted regarding the structural type of the crab community and the potential of the mangrove crab Scylla oceanica at mangrove ecosystem station Panimbang sub district, Banten. The objective of the research is to understand the structure of the crab community and the potential of the mangrove crab and to discover the perception index of communities living around the mangrove forest. Sampling of the local mangrove vegetation uses Line Transect Plot and the crabs is using the transect method at the three observation station. Three plots at each location was observed and executed three times. The result was as follows 6 types of mangrove which areAvicennia alba, Bruguiera sp, Excoecaria agollocha, Lumnitzera littorea, Rhizopora apiculata, and Sonneratia alba including 4 family of crabs from 14 species from the 354 crabs caught, which are family of Grapsidae, Sesarmidae, Ocypodidae, and Dotillidae. The population density of being 36 ind m2 43 ind m2, the diversity index of crabs is 1,86 ndash 2,01, the uniformity index of mangrove crabs is 0,706 0,763, dominancy index around 0,142 ndash 0,166, and the distribution pattern of grouping crabs Id 1,282 ndash 1,494 . Uniformity index between station 1, 2 and 3 are almost similar 78,01 85,96 . Population density of mangrove crabs Scylla oceanica are19,1 ind 100 m2. The average weight of female mangrove crabs caught were around 95 495 g, the average weight of male crabs being at 100 420 g. Diameter of carapace of the female crabs are around 6,8 ndash 14,5 cm and the average carapace diameter of male crabs were found at 7,1 ndash 13,5 cm. The growth pattern of male and female mangrove crabs is the negative aloometric type, with a grouping distribution value Id 1,5176 . The community perception index regarding the potential of the mangrove crabs at Panimbang sub district, Banten is considered good 78 . The potential catch mud crabs per month of 2.820 4.440 kg and incomes of population in this sector ranges Rp169.200.000,00 until Rp266.400.000,00 per month.

Abstrak :
Kandungan logam berat pada lingkungan akuatik harus dipantau secara terus menerus agar tidak membahayakan organisme perairan dan manusia yang mengkonsumsinya. Penelitian ini bertujuan untuk menentukan kandungan logam berat seng (Zn) dan logam timbal (Pb) pada sedimen dan kepiting bakau (Scylla serrata) yang diambil di Kawasan Tambak Blanakan, Subang, Jawa Barat, serta mengetahui nilai faktor biokonsentrasi (BCF) seng dan timbal pada kepiting bakau. Metode yang digunakan untuk pengambilan sampel adalah purposive sampling, untuk deteksi logam Zn menggunakan perangkat AAS (Atomic Absorption Spectrophotometry) dan untuk logam Pb menggunakan perangkat ICP (Inductively Coupled Plasma). Didapatkan rata-rata kandungan logam Zn pada sedimen di Tambak Blanakan tertinggi pada tambak I sebesar 26,39 ppm dan untuk rata-rata kandungan logam Pb tertinggi terdapat pada tambak III sebesar 7,273 ppm. Berdasarkan baku mutu US EPA kandungan logam berat pada sedimen untuk logam Zn sebesar 140,48 ppm dan untuk logam Pb sebesar 47,82 ppm, kandungan logam Zn dan Pb pada sedimen Tambak Blanakan masih berada di bawah ambang batas logam berat. Kandungan logam Zn pada kepiting bakau didapatkan pada tambak I sebesar 35,66 ppm, tambak II sebesar 18,99, tambak III sebesar 64,88 ppm dan untuk kandungan logam Pb pada kepiting bakau di Blanakan adalah ND atau tidak terdeteksi. Hal ini menunjukkan bahwa kandungan logam Zn dan Pb pada kepiting bakau (Scylla serrata) di Tambak Blanakan masih berada dibawah ambang batas logam berat. Nilai BCF logam Zn pada kepiting bakau pada tambak I sebesar 1,35 yang termasuk dalam kategori mikrokonsentrator, pada tambak II sebesar 0,76 termasuk dalam kategori dekonsentrator, dan pada tambak III sebesar 3,04 yang termasuk dalam kategori makrokensentrator. ......The content of heavy metals in the aquatic environment must be monitored continuously so as not to harm aquatic organisms and humans who consume them. This study aims to determine the content of heavy metal zinc (Zn) and metal lead (Pb) in sediment and mud crab (Scylla serrata) taken in the Blanakan Tambak Area, Subang, West Java, and to determine the value of the bioconcentration factor (BCF) of zinc and lead. on mud crabs. The method used for sampling is purposive sampling, for detection of Zn metal using an AAS (Atomic Absorption Spectrophotometry) device and for Pb metal using an ICP (Inductively Coupled Plasma) device. The highest average content of Zn in the sediment in the Blanakan Pond was 26.39 ppm in pond I and the highest average Pb metal content was found in pond III of 7.273 ppm. Based on the US EPA quality standard, the heavy metal content in sediment for Zn metal is 140.48 ppm and for Pb metal is 47.82 ppm, the content of Zn and Pb metals in Blanakan Pond sediments is still below the heavy metal threshold. The metal content of Zn in mangrove crabs was found in pond I of 35.66 ppm, pond II of 18.99, pond III of 64.88 ppm and for Pb metal content in mangrove crabs in Blanakan was ND or undetectable. This indicates that the metal content of Zn and Pb in the mud crab (Scylla serrata) in the Blanakan pond is still below the heavy metal threshold. The BCF value of Zn metal in mud crabs in pond I was 1.35 which was included in the microconcentrator category, at pond II was 0.76 which was included in the deconcentrator category, and in pond III was 3.04 which was included in the macrocentrator category.