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All Journal JURNAL ILMIAH PLATAX JURNAL PERIKANAN DAN KELAUTAN TROPIS
Ari B. Rondonuwu
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Environmental Science

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Distribution of Size of Banggai Cardinal Fish Pterapogon kauderni Koumans, 1933 in the Front Waters of Dudepo, South Bolaang Mongondow Regency Pongajouw, Oxha Putra; Rondonuwu, Ari B.; Bataragoa, Nego E.; Kalesaran, Ockstan; Lohoo, Anneke V.; Salaki, Meiske S.
Jurnal Ilmiah Platax Vol. 10 No. 1 (2022): ISSUE JANUARY-JUNE 2022
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v10i1.38695

Abstract

 This study aims to determine the distribution of sizes and morphological characters of Banggai Cardinal fish in the waters in front of Dudepo Village, South Bolaang Mongondow Regency. Field data collection using the explorer survey method with diving and snorkeling activities. Fishing in each microhabitat with “Sibu” fishing gear. The size distribution of cardinal Banggai fish is in the range of 2.7 - 9.2 cm. The size of the male Banggai Cardinal fish is in the range of 3.8 - 9.2, while the female is in the range of 3.7 - 8.1 cm. The size of fish in symbiosis with anemones is in the range of 2.7 - 7.1 cm, while those in sea urchins are in the range of 4.8 - 9.2 cm.Keywords: Size Distribution; Banggai Cardinal fish; morphological charactersAbstrakPenelitian ini bertujuan untuk mengetahui sebaran ukuran dan karakter morfologi ikan banggai kardinal di perairan Desa Dudepo, Kabupaten Bolaang Mongondow Selatan. Pengambilan data lapangan menggunakan metode survei jelajah dengan kegiatan penyelaman dan snorkling.  Penangkapan ikan di setiap mikrohabitat, dengan alat tangkap “Sibu”.  Sebaran ukuran ikan banggai kardinal berada pada kisaran 2,7 - 9,2 cm.  Ukuran ikan banggai kardinal jantan berada pada kisaran 3,8 - 9,2, sedangkan betina berada pada kisaran 3,7 - 8,1 cm.  Ukuran ikan yang bersimbiosis dengan anemon berada pada kisaran 2,7 - 7,1 cm, sementara yang berada di bulu babi berkisar 4,8 - 9,2 cm.
Acanthuridae in Bitunuris Waters Talaud Islands Sasauw, Harpan; Bataragoa, Nego E.; Manu, Gaspar D.; Rondonuwu, Ari B.; Lalita, Jans D.; Kusen, Janny D.
Jurnal Ilmiah Platax Vol. 10 No. 2 (2022): ISSUE JULY-DECEMBER 2022
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v10i2.41165

Abstract

 This study aims to determine the species of fish from the Acanthuridae family in Bitunuris Village, Salibabu Island, Talaud Islands Regency. Fish samples were caught using monofilament gill nets with a mesh size of 1.5 inches, net length of 15 m, and net height of 2 m. Sampling was carried out in April and May 2021. A total of 63 individuals were caught consisting of nine species. Acanthurus nigrofuscus 40 individuals, 10.0-17.0 cm in length and 18-77 g in weight. Acanthurus lineatus three individuals, 9.4-17.7 cm in length and 17-96 g in weight. Acanthurus triostegus is seven individuals, 9.3-12.4 cm in length, and weighs 21-55 g. Acanthurus nigricans two individuals each measuring 13.9-13.9 cm in length and weighing 67-70 g each. One individual Ctenochaetus cyanocheilus, a total length of 10.3 cm, and weight of 29 g. Naso lituratus four individuals, length 15.1-17.7 cm and weight ranging from 68-115 g. Naso brevirostris one individual measuring 23.0 cm in length and weighing 186 g. One individual Naso brachycentron, 24.5 cm in length and 172 g in weight. Zebrasoma scopas four individuals, 12.1-15.8 cm in length and weighing 54-105 g.Keywords: Species, gill nets.AbstrakPenelitian ini bertujuan untuk mengetahui spesies ikan Famili Acanthuridae di Desa Bitunuris Pulau Salibabu Kabupaten Kepulauan Talaud. Sampel ikan ditangkap menggunakan jaring insang monofilamen dengan ukuran mata jaring 1,5 inci, panjang jaring 15 m, tinggi jaring 2 m. Pengambilan sampel dilakukan pada April dan  Mei 2021. Sebanyak 63 individu yang tertangkap terdiri atas sembilan spesies.  Acanthurus nigrofuscus 40 individu, panjang berkisaran 10,0-17,0 cm dan berat 18-77 g.  Acanthurus lineatus tiga individu, panjang berkisaran 9,4-17,7 cm berat berkisaran 17-96 g.  Acanthurus triostegus  tuju individu, panjang 9,3-12,4 cm dan berat berkisaran antara 21-55 g.  Acanthurus nigricans dua individu masing-masing ukuran panjang 13,9-13,9 cm berat masing-masing ukuran 67-70 g.  Ctenochaetus cyanocheilus satu individu, panjang total 10,3 cm dan  berat 29 g.  Naso lituratus empat individu, ukuran panjang 15,1-17,7 cm berat berkisaran 68-115 g.  Naso brevirostris satu individu ukuran panjang 23,0 cm memiliki berat 186 g.  Naso brachycentron satu individu,  panjang 24,5 cm dan berat 172 g.  Zebrasoma scopas empat individu,  panjang 12,1-15,8 cm dan  berat 54-105 g.Kata Kunci: Spesies, jaring insang.
Estimation of Carbon Stock in Mangrove Communities in Budo Village, Wori District, North Minahasa Regency Ruru, Ricky Andreas; Rumengan, Antonius Petrus; Paransa, Darus Sa'adah Johanis; Paruntu, Carolus Paulus; Bara, Robert Antonius; Rondonuwu, Ari B.
Jurnal Ilmiah Platax Vol. 11 No. 1 (2023): ISSUE JANUARY-JUNE 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i1.43629

Abstract

Mangrove is an ecosystem consisting of a collection of trees and grows in the area around the coastline, living in conditions influenced by tides, muddy and sandy sediments. Has an important function in the effort to absorb carbon levels through the photosynthesis process which is better than other forest vegetation. The purpose of this study, namely to identify mangrove species, examine vegetation and determine the value of biomass and estimated carbon stock in Budo Village, Wori District, North Minahasa Regency, North Sulawesi. Data collection in this study used the line transect method with the transect position being on the left, middle and right of the mangrove ecosystem of Budo Village which was pulled along 100 meters per transect, then the quadrants were measured 10 m x 10 m using raffia rope to limit each quadrant with an interval of 10 m. m and the distance between transects is about 50 m. Based on the results of the study, found 4 types of mangroves, namely: Rhizophora mucronata, Rhizophora apiculata, Sonneratia alba, and Bruguiera gymnorrhyza. The highest density values and relative density of species were on transect 3 with a value of 900 trees/ha and 86.53% by Rhizophora apiculata. The species frequency and relative species frequency were highest in each transect owned by Rhizophora apiculata with values of 0.8 and 55.66%, respectively. The highest species cover was Rhizophora apiculata with a value of 2.56 cm/m with a relative species cover of 72.21%. The highest important value index was Rhizophora apiculata on transect 3 with a value of 214.31%. The highest biomass content was on transect 3 with a value of 592.27 tons/ha. The highest carbon content is on transect 3 with a value of 55.67 tons/ha.
Cardinal Fish Otolith Biometrics Banggai Pterapogon kauderni Koumans, 1933 In the Front Waters of Dudepo TPI Dudepo, South Bolaang Mongondow Regency and in the Lembeh Strait, Bitung City Melani, Hellen; Rondonuwu, Ari B.; Sangari, Joudy R.R; Manginsela, Fransine B.; Pratasik, Silvester B.; Undap, Suzanne L.
Jurnal Ilmiah Platax Vol. 11 No. 1 (2023): ISSUE JANUARY-JUNE 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i1.44002

Abstract

This study aims to determine the biometric comparison of otoliths of Banggai cardinal fish based on gender and to determine the comparison of otolith biometrics at two locations in the Waters Front of TPI Dudepo Kab. South Bolaang Mongondow and in the Lembeh Strait, Bitung City. Data collection in the field using the roaming survey method. Fishing is done by snorkelling, catching a minimum of 50 individuals representing each size class using Chang net/Sibu fishing gear. The differences in otoliths in male and female sexes have seven different otolith characters in otolith length (OL), otolith width (OW), otolith area (OA) and otolith perimeter (OP), roundness (Rnd), ellipticity (Ell) and aspect ratio (Ar), and three characters that do not show significant differences, namely form factor (Ff), circularity (Cir), rectangularity (Rec). The differences in otoliths based on location in front of the Dudepo TPI and in the Lembeh Strait have seven different otolith characters in otolith length (OL), otolith width (OW), otolith area (OA) and otolith perimeter (OP), roundness (Rnd), ellipticity (Ell). and aspect ratio (Ar), and three characters that do not show significant differences, namely form factor (Ff), circularity (Cir), rectangularity (Rec). Keywords: Biometrics, cardinal proud fish, comparison Abstrak Penelitian ini bertujuan untuk mengetahui perbandingkan biometrik otolit ikan kardinal banggai berdasarkan jenis kelamin dan mengetahui perbandingan biometrik otolit pada dua lokasi di Perairan Depan TPI Dudepo Kab. Bolaang Mongondow Selatan dan di Selat Lembeh Kota Bitung. Pengambilan data di lapangan menggunakan metode survei jelajah. Penangkapan ikan dilakukan dengan penyelaman snorkling, penangkapan minimal 50 individu yang mewakili setiap kelas ukuran dengan alat tangkap Chang net/Sibu. Perbedaan otolit pada jenis kelamin jantan dan jenis kelamin betina memiliki tujuh perbedaan karakter otolit pada panjang otolit (OL), lebar otolit (OW), area otolit (OA) dan perimeter otolit (OP), roundness (Rnd), ellipticity (Ell) dan aspect ratio (Ar), dan tiga karakter yang tidak menunjukkan perbedaan yang signifikan, yaitu form factor (Ff), circularity (Cir), rectangularity (Rec). Perbedaan otolit berdasarkan lokasi di depan TPI Dudepo dan di Selat Lembeh memiliki tujuh perbedaan karakter otolit pada panjang otolit (OL), lebar otolit (OW), area otolit (OA) dan perimeter otolit (OP), roundness (Rnd), ellipticity (Ell) dan aspect ratio (Ar), dan tiga karakter yang tidak menunjukkan perbedaan yang signifikan, yaitu form factor (Ff), circularity (Cir), rectangularity (Rec). Kata kunci: Biometrik, ikan banggai kardinal, perbandingan
Morphological characteristics of dolphinfish Coryphaena hippurus Linnaeus 1758 landed in Kalinaun Village, East of Likupang District, North Sulawesi Mantiri, Nicola R. K.; Tilaar, Ferdinand F.; Pratasik, Silvester B.; Sinjal, Henky; Lohoo, Anneke V.; Rondonuwu, Ari B.
Jurnal Ilmiah Platax Vol. 11 No. 1 (2023): ISSUE JANUARY-JUNE 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i1.44916

Abstract

This study aimed to determine the size group of fish caught, compare the morphometric characteristics between sexes, and describe the meristic characteristics of the dolphinfish Coryphaena hippurus. This study used a descriptive method. The morphometric characteristics were measured using a ruler and tape at the accuracy of 1 mm and 5 m, respectively, while the meristic characteristics were obtained by counting the number of spines. This study found a total of 57 individuals of the dolphinfish that had a size range of 48–89 cm, the male from 48 to 95 cm, and the females from 49 to 84 cm, respectively. Four morphometric parameters of male and 2 parameters of female dolphinfish could be used to predict the total length. The dolphinfish also had 59 dorsal soft rays, 25 soft pelvic rays, 22 soft pectoral rays, 26 soft anal rays, and 48 hard caudal rays. Keywords: descriptive, morphometric, meristic, size. Abstrak Penelitian ini bertujuan untuk mengetahui kelompok ukuran ikan yang tertangkap, membandingkan karakteristik morfometrik antar jenis kelamin, dan mendeskripsikan karakteristik meristik ikan Lemadang Coryphaena hippurus. Penelitian ini menggunakan metode deskriptif. Karakteristik morfometrik diukur menggunakan penggaris dan meteran dengan ketelitian masing-masing 1 mm dan 5 m, sedangkan perhitungan meristik dilakukan dengan cara menghitung jari-jari sirip. Penelitian ini menemukan sebanyak 57 individu ikan Lemadang yang memiliki kisaran ukuran 48-89 cm, jantan 48-95 cm, dan betina berkisar 49-84 cm. Empat parameter morfometrik ikan Lemadang jantan dan 2 parameter ikan lemadang betina dapat digunakan untuk menduga panjang total. Ikan Lemadang juga memiliki 59 jari-jari lemah sirip punggung, 25 jari-jari lemah sirip perut, 22 jari-jari lemah sirip dada, 26 jari-jari lemah sirip dubur, dan 48 jari-jari keras sirip ekor. Kata kunci: deskriptif, morfometrik, meristik, ukuran.
Condition of Coral Reefs in the Waters of Kalasey Satu Village, Minahasa Regency, North Sulawesi Pitoy, Israel; Rembet, Unstain N. W. J.; Rondonuwu, Ari B.; Wantasen, Adnan S.; Kambey, Alex D.; Manu, Gaspar; Tombokan, John L.
Jurnal Ilmiah Platax Vol. 11 No. 1 (2023): ISSUE JANUARY-JUNE 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i1.45892

Abstract

The waters of Kalasey I Village have various resources and environmental services that are the potential to be utilized sustainably, such as tourism. The development activities in the tourism sector look so fast in this area with the establishment of several tourism infrastructures, such as diving centers, cottages, resorts,s and restaurants. These activities are thought to be able to affect the coral reef ecosystem. This study aims to determine the coral reef conditions, especially the reef flat, based on the percent cover of the live corals. Data collection was carried out at a depth of 3 meters with 3 replications using an Underwater Photo Transect (UPT) technique. Data obtained were analyzed using Coral Point Count with excel extension (CPCe) software. Based on the percent cover of live corals, the condition of coral reefs in the Kalasey 1 village waters was classified as poor with a coral cover percentage of 2.93%. Keywords: Tourism development, Underwater Photo Transect (UPT), percent cover, coral point count (CPCe) Abstrak Perairan di Desa Kalasey I memiliki berbagai sumberdaya serta jasa lingkungan yang berpotensi untuk dimanfaatkan secara berkesinambungan seperti potensi pariwisata. Kegiatan pembangunan di sektor pariwisata terlihat begitu pesat di wilayah ini dengan berdirinya sejumlah infrastruktur pariwisata seperti diving center, cottage, resort dan rumah makan, dimana aktivitas tersebut diduga dapat mempengaruhi ekosistem terumbu karang. Penelitian ini bertujuan untuk mengetahui kondisi terumbu karang, khususnya rataan terumbu (reef flat), berdasarkan persentase tutupan karang di perairan Desa Kalasey I Kecamatan Mandolang Kabupaten Minahasa. Pengambilan data dilakukan pada kedalaman 3 meter dengan 3 ulangan, menggunakan teknik Underwater Photo Transect (UPT) dan data yang diperoleh dianalisis menggunakan software Coral Point Count with excel extension (CPCe). Diperoleh hasil kondisi terumbu karang tergolong dalam kategori miskin dengan persentase tutupan karang sebesar 2.93 %. Kata kunci: Pembangunan pariwiata, Underwater Photo Transect (UPT), persen tutupan, coral point count (CPCe)
Gastropod community structure on seagrass beds in Bahoi Village, North Minahasa Tualangi, Jehezkiel Timotius; Rangan, Jety K.; Sangari, Joudy R. R.; Rondonuwu, Ari B.; Manu, Gaspar D.; Kondoy, Khristin I. F.
Jurnal Ilmiah Platax Vol. 11 No. 2 (2023): ISSUE JULY-DECEMBER 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i2.48307

Abstract

The village of Bahoi has a vast expanse of seagrass meadows of approximately 16.50 Ha, located between mangrove and coral reef ecosystems. This study aims to inventory the gastropod species in the seagrass meadow of Bahoi village waters and to determine the gastropod community structure through analysis of species density, relative density, species diversity index, and dominance index. The method used was a transect line method along 50 meters and a 1x1m quadrat pulled towards the sea, repeated three times during low tide. A total of 117 individuals were found, belonging to 26 species (11 families and 17 genera) of gastropods in the seagrass meadow of Bahoi village coastal waters. Based on the results, the highest density value was 1.10 ind/m2 with a relative density of 28.20%. Based on the analysis, the dominance index (D) of gastropods in the seagrass meadow of Bahoi village coastal waters was low, with values of D = 0.019 to 0.041, indicating that there was no specific species dominance in the seagrass meadow of Bahoi village coastal waters. This has an effect on the diversity index with a value of H' = 2.51, which is categorized as moderate. These results show that the diversity of gastropod species in the seagrass meadow of Bahoi village waters is quite diverse due to the absence of specific gastropod species dominance. Keywords: Bahoi, Seagrass Meadow, Gastropods, Community Structure. Abstrak Desa Bahoi memiliki luas hamparan padang lamun ± 16.50 Ha yang berada di antara ekosistem mangrove dan ekosistem terumbu karang. Penelitian ini bertujuan untuk melakukan inventarisasi jenis-jenis gastropoda di hamparan lamun perairan Desa Bahoi, dan mengetahui struktur komunitas gastropoda melalui analisis kepadatan spesies, kepadatan relatif, indeks keanekaragaman spesies, dan indeks dominasi. Metode yang digunakan adalah metode transek garis sepanjang 50 meter dan kuadrat berukuran 1×1m yang ditarik ke arah laut, dan dilakukan ulangan sebanyak 3 kali pada saat air surut.Ditemukan 117 individu yang termasuk ke dalam 26 spesies (11 famili dan 17 genera) gastropoda di hamparan padang lamun perairan pantai desa Bahoi. Berdasarkan hasil penelitian, nilai kepadatan tertinggi sebesar 1,10 ind/m2 dengan kepadatan relatif 28,20%. Berdasarkan hasil analisis, Indeks Dominansi (D) gastropoda di hamparan lamun perairan pantai desa Bahoi tergolong rendah, dengan nilai D=0,019 sampai dengan 0,041 menunjukkan bahwa tidak terdapat dominasi spesies tertentu di hamparan padang lamun perairan pantai desa Bahoi. Hal ini berpengaruh terhadap Indeks Keanekaragaman dengan nilai H’=2,51 sehingga berada pada kategori sedang. Hasil tersebut menunjukkan bahwa keanekaragaman jenis gastropoda di hamparan lamun perairan pantai desa Bahoi cukup beragam dikarenakan tidak adanya dominasi spesies gastropoda tertentu. Kata kunci: Bahoi, Padang Lamun, Gastropoda, Struktur Komunitas
Biometrics and Reproduction of Redbelly Yellowtail fusilier Caesio cuning (Bloch, 1791) in Guraping Bay, Halmahera Island, Indonesia Marsaoly, Rafil; Bataragoa, Nego; Rondonuwu, Ari B.; Wantasen, Adnan S.; Rembet, Unstain; Lalita, Jans
Jurnal Ilmiah Platax Vol. 12 No. 1 (2024): ISSUE JANUARY-JUNE 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i1.49322

Abstract

This study aims to analyze the biometrics of yellowtail fish (length-weight relationship, growth patterns, condition factors, length-fecundity relationship) and reproductive aspects (gonadal maturity level, gonadal maturity index, and fecundity). The yellowtail fish sample used in this study was taken from fishermen's catches in April 2023. A total of 73 male individuals 17.0-29.9 cm total length, 62.00-356.00 gram, 77 female individuals 17.5-8 .1 cm total length, weight 69.88-288.00 grams. Male length-weight relationship W= 0.0140L2.9662 R2= 0.9812, isometric growth pattern. Female W= 0.0166L2.9104, R2 = 0.9633, growth pattern isometric. Condition factor 1.00 ± 0.06 for males and 1.00 ± 0.07 for females. Gonadal maturity levels I, II, III, IV and V for both males and females with the number of individuals at TKG I 65, II 26, III 25, IV 24, and V 10 individuals. The gonadal maturity index with the highest average value was 1.08 ± 0.47 at TKG IV. Fecundity ranged from 1.771-68.425 which was calculated on 28 fish samples with a mean ± SD of 20.158 ± 19.110. Biometric relationship with fecundity F = 102.67L0.1955, R² = 0.0789 shows a very weak relationship between length and fecundity. Keywords: Length-weight, condition factor, maturity, gonad index, fecundity. Abstrak Penelitian ini bertujuan untuk menganalisis biometrik  ikan ekor kuning (hubungan panjang-berat, pola pertumbuhan, faktor kondisi, hubungan panjang-fekunditas)   dan aspek reproduksi (tingkat  kematangan gonad, indeks kematangan gonad, dan fekunditas). Sampel ikan ekor kuning yang digunakan dalam penelitian ini diambil dari tangkapan nelayan pada bulan April 2023. Sebanyak 73 individu jantan 17,0-29,9 cm panjang total, 62,00-356,00 gram, 77 individu betina   17,5-8,1 cm panjang total, berat  69,88-288,00 gram.   Hubungan panjang-berat jantan W= 0,0140 L 2,9662 R2= 0,9812, pola pertumbuhan isometrik. Betina W= 0,0166L2,9104, R2 = 0,9633, pola pertumbuhan isometrik. Fakotor kondisi 1,00±0,06 untuk jantan dan betina 1,00±0,07. Tingkat kematangan gonad I, II, III, IV dan V baik jantan maupun betina dengan jumlah  individu pada TKG I  65, II 26, III 25,  IV 24, dan V 10 individu.  Indeks kematangan gonad dengan nilai rata-rata tertinggi yaitu 1,08±0,47 pada TKG IV. Fekunditas berkisar pada  1.771-68.425 yang dihitung pada 28 sampel ikan dengan rata-rata ± SD  20.158 ±19.110. Hubungan biometrik  dengan fekunditas F = 102,67L0,1955, R² = 0,0789 menunjukkan hubungan yang sangat lemah antara panjang dan fekunditas. Kata Kunci: Panjang-berat, faktor kondisi, kematangan gonad indeks, fekunditas.
Condition of Coral Reefs in the Waters of Popareng Village, Tatapaan District, South Minahasa Regency Losu, Anggun; Rondonuwu, Ari B.; Kambey, Alex D.; Rembet, Unstain N. W. J.; Rangan, Jety K.; Manembu, Indri Shelovita
Jurnal Ilmiah Platax Vol. 11 No. 2 (2023): ISSUE JULY-DECEMBER 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i2.49488

Abstract

Bunaken National Park is known for its beautiful underwater scenery, with potential for coral reefs and tourism activities, such as diving and snorkeling. The waters of Popareng village is located in the southern part of Bunaken National Park. This study aims to determine the coral reef components and conditions based on the percent coral cover in Popareng waters, Tatapaan district, South Minahasa regency. A descriptive method was used in this study. Data collection was conducted at the depth of 7 meters with 4 replications using an Underwater Photo Transect (UPT) method. Data were analysed using the Coral Point Count with Excel Extension (CPCe) application. Results revealed that the coral reef components included 24 biotic categories and 3 abiotic categories, with the lowest percent coral cover found in the Acropora Digitate (ACD) category at 0.03%. The coral reef conditions this area is moderate with percent cover of 33.92%. Abstrak Taman Nasional Bunaken dikenal dengan keindahan bawah lautnya, memiliki potensi terumbu karang, dan potensi parawisata dengan kegiatan utama yang dapat dilakukan adalah diving dan snorkeling (Handoyo dan Johanis, 2021). Perairan Desa Popareng merupakan bagian selatan dari Kawasan Taman Nasional Bunaken. Penelitian ini bertujuan untuk mengetahui komponen bentik penyusun terumbu karang dan kondisi terumbu karang, berdasarkan persentase tutupan karang di perairan Desa Popareng Kecamatan Tatapaan Kabupaten Minahasa Selatan. Metode deskriptif digunakan dalam penelitian ini. Pengambilan data dilakukan pada kedalaman 7 meter dengan 4 ulangan, menggunakan metode Underwater Photo Transect (UPT). Data lapangan yang diperoleh dianalisis menggunakan aplikasi Coral Point Count with excel extension (CPCe). Hasil penelitian ini ditemukan komponen bentik penyusun terumbu karang meliputi 24 kategori biotik dan 3 kategori abiotik, dan persentase tutupan tertinggi ditemukan kategori yaitu Rubble (R) sebesar 21,13%, sedangkan persentase tutupan terendah berada pada kategori Acropora Digitate (ACD) sebesar 0,03%. Diperoleh hasil kondisi terumbu karang tergolong dalam kategori cukup dengan persentase tutupan karang sebesar 33,92
Types and Size Distribution of Parrotfish (Family Scaridae) Caught with Gillnets in the Waters off Taduna Village, Kabaruan Island. Rumping, Agustiani M. V.; Rondonuwu, Ari B.; Kondoy, Khristin F I.; Lalita, Jans Djoike; Rangan, Jetty K.; Tombokan, Leonard J.
Jurnal Ilmiah Platax Vol. 11 No. 2 (2023): ISSUE JULY-DECEMBER 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i2.52035

Abstract

The objective of this research is to identify the types and size distribution of parrotfish in the waters of Taduna Village. The research was conducted using sampling methods. Samples were collected over a period of two months from the catches landed in Taduna Village by local fishermen. The fishermen used gillnets for their catches. The length of each fish was measured from the tip of the mouth to the end of the tail using a millimeter-scale ruler with a precision of 0.1 cm. The weight of the fish was measured using a digital scale with a resolution of one gram. The length of each species was analyzed using frequency distribution and presented in length and weight histograms. Based on the data obtained from the measurements of Family Scaridae fish, a total of 53 individuals were collected, consisting of 8 species: Chorurus bleekeri (11 individuals), Calotomus carolinus (4 individuals), Chorurus japanensis (6 individuals), Chlorurus microrhinos (2 individuals), Scarus frenatus (16 individuals), Scarus russell (4 individuals), Scarus spinus (5 individuals), and Scarus tricolor (5 individuals). The distribution of Family Scaridae fish in the waters off Taduna Village shows varying lengths and weights for each species. For example, Chorurus bleekeri ranged from 18.9 to 26.5 cm in length and weighed between 150 and 394 grams, Chorurus japanensis had a length distribution between 17.5 and 27.4 cm and weighed from 119 to 465 grams, and Scarus frenatus ranged from 18.3 to 24.5 cm in length and weighed between 117 and 308 grams." Keywords: Parrotfish, Scaridae, Types, Size, Kabaruan. Abstrak Tujuan penelitian ini yaitu untuk mengetahui jenis dan distribusi ukuran ikan kakatua di perairan Desa Taduna. Penelitian ini menggunakan metode sampling. Pengambilan sampel dilakukan dalam waktu dua bulan dari hasil tangkapan nelayan yang didaratkan di Desa Taduna. Alat yang digunakan nelayan adalah jaring insang mono filamen. Seluruh panjang ikan diukur dari ujung mulut hingga ujung ekor dengan penggaris skala milimeter dengan ketelitian 0,1 cm. Berat ikan diukur dengan timbangan digital dengan resolusi satu gram. Panjang setiap spesies dianalisis menggunakan distribusi frekuensi dan ditampilkan dalam histogram panjang dan berat. Berdasarkan data hasil pengukuran ikan Famili Scaridae diperoleh sebanyak 53 individu yang terdiri dari 8 spesies yaitu Chorurus bleekeri (11 individu), Calotomus carolinus (4 individu), Chorurus japanensis (6 individu), Chlorurus microrhinos (2 individu), Scarus frenatus (16 individu), Scarus russellii (4 individu), Scarus spinus (5 individu) dan Scarus tricolor (5 individu). Distribusi ikan Famili Scaridae di perairan depan Desa Taduna memiliki ukuran panjang dan berat yang bervariasi yaitu spesies Chorurus bleekeri berkisar 18,9-26,5 cm dan berat 150-394 gram, Chorurus japanensis memiliki distribusi ukuran panjang berkisar 17,5-27,4 cm dan berat 119-465 gram dan Scarus frenatus memiliki distribusi ukuran panjang berkisar 18,3-24,5 cm dan berat 117-308 gram. Kata kunci : Ikan kakatua, Scaridae, Jenis, Ukuran, Kabaruan
Co-Authors Adnan S. Wantasen Adnan Wantasen Alex D. Kambey Alex Denny Kambey Ali, Fajri Nurul Anneke V. Lohoo Antou, Kevin J. P. Ardi Lensun Awuy, Gisela Ayuni Sara Bataragoa, Nego Billy N. Ompi Carolus Paulus Paruntu Dauhan, Dulce Maria Dei, Katrin Dowena Delya Amale Fransine B. Manginsela Gaspar D. Manu, Gaspar D. Gaspar Manu Indri Manembu Janny D. Kusen John L Tombokan John L. Tombokan Joshian N.W. Schaduw Khristin I. F. Kondoy Khristin I. F. Kondoy, Khristin I. F. Kondoy, Khristin F I. Kurnia Tolule, Kurnia Lalita, Jans Lalita, Jans D. Lalita, Jans Djoike Laurentius T. X. Lalamentik Laurentius T. X. Lalamentik, Laurentius T. X. Laurentius Th. X. Lalamentik Lawrence J. L. Lumingas Losu, Anggun M.Si, Fransine B. Mandagi, Stephanus Manengkey, Hermanto Mantiri, Nicola R. K. Manurung, Nia Dopa Marsaoly, Rafil Marselo R. Manzanaris Medy Ompi Melani, Hellen Metris S. Wangkanusa Moningkey, Ruddy D. Nathasya sheilla Thiffany Carlos Nego E. Bataragoa Nego E. Bataragoa, Nego E. Ockstan Kalesaran Paransa, Darus Sa'adah Johanis Pitoy, Israel Podung, Thania Theresia Pongajouw, Oxha Putra Rangan, Jetty K. Rangan, Jety K. Rembet, Unstain Robert A. Bara Roeroe, Kakaskasen Andreas Rose O. S. E. Mantiri, Rose O. S. E. Ruddy D. Moningkey Ruddy Dj. Moningkey Rully Lempoy Rumengan, Antonius Petrus Rumping, Agustiani M. V. Ruru, Ricky Andreas Rusdiyanto Husuna Salaki, Meiske S. Sangari, Joudy R. R. Sangari, Joudy R.R Sanjaya Molongio Sasauw, Harpan Silvester B Pratasik Sinjal, Henky Steven Ch. Kaunang, Steven Ch. Suzanne L Undap Tilaar, Ferdinand F. Tombokan, Leonard J. Tualangi, Jehezkiel Timotius Unstain N. W. J. Rembet Unstain N. W. J. Rembet, Unstain N. W. J. Unstain N.W.J. Rembet Unstain NWJ Rembet Vctor N.R. Watung Victor N. R. Watung, Victor N. R. Wuwumbene, Riezky H. S.