ABSTRAKPenelitian ini dilakukan pada bulan Oktober sampai November 2014 di perairan Pasir Putih Kabupaten Manokwari, berlokasi di Pantai Air Salobar. Tujuan penelitian adalah untuk mengetahui persentase tutupan terumbu karang, kualitas fisik-kimia air dan korelasi kualitas fisik-kimia air terhadap persentase tutupan terumbu karang di bagian barat daya perairan Pasir Putih, Manokwari. Metode yang digunakan untuk memperoleh data persentase tutupan karang adalah Point Intercept Transect (PIT) pada kedalaman 3 m (Transek I), 7 m (Transek II) dan 10 m (Transek III). Hasil pengamatan diperoleh persentase tutupan karang pada Transek I adalah 91%, Transek II adalah 78% dan Transek III adalah 54%. Kondisi terumbu karang di perairan Pasir Putih berada dalam kondisi baik hingga sangat baik. Kondisi sangat baik terdapat pada Transek I dan II, sedangkan kondisi baik terdapat pada Transek III. Bentuk pertumbuhan yang paling dominan pada Transek I dan III adalah coral branching. Persentase tutupan coral branching pada Transek I adalah 59% dan Transek III adalah 20%. Bentuk pertumbuhan Coral Branching yang ditemukan, didominasi oleh karang dari genus Montipora dan Psammocora. Untuk genus Montipora yang ditemukan adalah spesies Montipora digitata. Sedangkan dari genus Psammocora yang ditemukan adalah spesies Psammocora contigua. Sedangkan bentuk petumbuhan yang paling dominan pada Transek II adalah Coral Encrusting (28%). Kualitas fisik-kimia air yang diukur pada perairan Pasir Putih adalah suhu 27,5-29°C, Oksigen terlarut 5,08-5,2 ppm, pH 7,03-7,15, salinitas 30-31‰, kecepatan arus 0,08 m/s dan kecerahan perairan 16 m. Nilai kualitas fisik-kimia air ini termasuk ideal bagi pertumbuhan terumbu karang. Hasil uji korelasi menunjukkan bahwa parameter kualitas air yang paling berpengaruh atau sangat signifikan (ρ = 0,01) terhadap persentase tutupan karang adalah suhu, oksigen terlarut dan kedalaman perairan.Kata Kunci: Perairan Pasir Putih, Persentase Tutupan, Parameter Fisik-Kimia Air, Uji Korelasi ABSTRACTThis research was done on October-November 2014 at Pasir Putih coastal area of Manokwari Regency and located at Air Salobar beach. The research aimed to know percent cover of coral reef, physical and chemical water quality, also the correlation of water quality to coral reef percent cover at southern west part of Pasir Putih coast in Manokwari. The method used in this study was Point Intercept Transect (PIT) at the depth of 3 m (Transect I), 7 m (Transect II) dan 10 m (Transect III) to determine coral reef. Results showed that percent cover of coral reef on Transect I was 91%, Transect II 78% amd Transect III 54%. Coral reef condition in Pasir Putih coast was in good to very good status. Very good confition was in Transecr I and II, whereas good condition on Transect III. Dominant lifeform of growth on Transect I and III was coral branching. The percentage cover of coral branching on Transect I was 59% and Transect III was 20%. Lifeform growth of coral branching found was dominated by coral genus Montipora and

Batbitim marine conservation area (MCA) of Misool, Raja Ampat has been set as an area that is prohibited for fishing activities since 2005. The only activities allowed in that area are tourism and research activities. The difference in the management status between area inside the Batbitim MCA and outside the MCA might affect ecosystem components such as fish and coral reef in the respective area. The present study aims to investigate the ecological status of target fishes in the two areas. Data were collected by using an underwater visual census at 5 sites, in which at each site 3 transects were placed. Collected data are then used to assess ecological indices for the target fishes. It is found that there were 38 species of target fish belonging to 13 families. The diversity index of Shannon was found to be in the range between 0.99 (inside MCA) to 1.67 (outside MCA) and dominance index ranged between 0.26 (outside MCA) and 0.61(inside MCA). The abundance of individual target fish in each location varies between 960 ind ha−1 (outside MCA) and 9413 ind.ha−1 (inside MCA). Those results indicate that there is a discrepancy between the ecological status of the target fish at locations inside and outside the MCA.

Penelitian ini dilaksanakan pada bulan Februari - Maret 2017 di perairan pesisir Kampung Oransbari, Kabupaten Manokwari Selatan,  Provinsi Papua Barat. Tujuan penelitian ini mengetahui komposisi jenis ikan karang, keanekaragaman jenis ikan karang, kelimpahan dan biomassa ikan karang. Proses pendataan kelimpahan ikan karang menggunakan metode sensus visual ikan (Underwater Fish Visual Census Method) (English et al, 1994), dimana secara teknis dilakukan dengan metode transek sabuk (Belt Transect).  Total  ikan karang yang tercatat adalah 6224 individu, tergolong dalam 9 famili, 11 genus dan 22 spesies dimana total individu stasiun I sebanyak 1174 dan 5050 individu pada stasiun II. Komposisi ikan karang tergolong dalam 9 famili (Haemullidae, Mullidae, Scaridae, Lutjanidae, Caesionidae, Acanthuridae, Siganidae, Serranidae dan Sphyraenidae), 11 genus (Plectorinchus, Parupeneus, Mulloides, Scarus, Choerodon, Lutjanus, Caesio, Ctenochaetus, Siganus, Cephalopholis, dan Sphyraena), dan terdiri dari 22 spesies (Plectorinchus lineatus, Plectorinchus chrysotaenia, Parupeneus bifasciatus, Mulloides flavolineatus, Scarus sp., Scarus bleekeri, Scarus flavipectoralis, Scarus quoyi, Choerodon anchorago, Lutjanus gibbus, Lutjanus quinquelineatus, Lutjanus semicinctus, Lutjanus erythropterus, Lutjanus rivulatus, Caesio lunaris, Caesio teres, Ctenochaetus striatus, Ctenochaetus tominiensis, Siganus doliatus, Siganus guttatus, Cephalopholis miniata, dan Sphyraena barracuda).  Nilai indeks keanekaragaman pada stasiun I sebesar 3,03 dan 3,61 pada stasiun II, selanjutnya nilai indeks keseragaman pada stasiun I sebesar 1,12 dan 1,17 pada stasiun II, serta nilai indeks dominansi pada stasiun I sebesar 0,10 dan 0,08 pada stasiun II. Kelimpahan total ikan karang yang termasuk dalam kategori spesies target pada stasiun I yaitu 46.960 individu/ha dengan estimasi biomassa sebesar 188.528,7 Kg/ha. Selanjutnya pada stasiun II kelimpahan total ikan karang mencapai 202.000  individu/ha serta estimasi biomassa sebesar 335.045,4 Kg/ha.

In Indonesia, flyingfish are abundant and distributed in Makassar Strait, Flores Sea, Banda Sea, Sulawesi Sea, Maluku Sea, Arafura, Northern Sea of Papua, and Halmahera. The aims of this study were to analyse and describe the characteristics of flyingfish habitat, based on oceanographic conditions and eggs catches, and to visualize the variability in spatial and temporal patterns of predicted potential spawning grounds. The research was conducted in Fak-Fak and adjacent seas in the Indonesian Fisheries Area WPP 715, from 130°−134° E and 2°S−5° S. Data were collected during 2018 for selected months: June, July, August and September. Remote sensing data used in this study included chlorophyll-a concentration (Chl-a) OCI-Algorithm, Sea Surface Temperature (SST) 11μ daytime, Absolute Dynamic Topography (ADT), Significant Wave Height and Ocean Surface Current (meridian and zonal components). Fishery data were collected from fishermen’s GPS units, and through participatory mapping. Based on the mapping of fishing locations of flyingfish fishermen, there were four locations where fishing frequency was high. The potential fishing grounds were approximately 5-40 miles from mainland of Fak-Fak. Chlorophyll-a concentration in Fak-Fak waters ranged from 0.201–2.13 mg/m3. The temperature was estimated to be in the range of 27-31°C, with an average temperature of 27.1°C. ADT only changed by 0.01 cm in height each month with a range between 0.88–1.02 cm. Wind was one of the driving forces of geostrophic current. The waves reached a peak in August, with heights ranging from 0.70 to 1.6 metre. Flyingfish were predominantly found in oceanic zones.