Tropical Fisheries Management Journal最新文献

Density and ecological index of nudibranch in Humbolt Bay Water Jayapura City Papua Province, Indonesia 印度尼西亚巴布亚省查亚普拉市洪堡湾水域裸鳃科密度及生态指数

Tropical Fisheries Management Journal Pub Date : 2021-06-29 DOI: 10.29244/jppt.v5i1.34406

Y. P. Paulangan, Agustinus Satrio Supoyo, J. D. Kalor

{"title":"Density and ecological index of nudibranch in Humbolt Bay Water Jayapura City Papua Province, Indonesia","authors":"Y. P. Paulangan, Agustinus Satrio Supoyo, J. D. Kalor","doi":"10.29244/jppt.v5i1.34406","DOIUrl":"https://doi.org/10.29244/jppt.v5i1.34406","url":null,"abstract":"Nudibranchs are marine invertebrates from the mollusc phylum of the gastropod class subclass Opisthobranchiata. Nudribanch has many benefits because of its compound content, has the beauty of attractive colors as an underwater tourism photo object, and can be used as biota indicators of ecosystem health. The purpose of this research is to assess density, diversity index, Evenness index, and dominance index as well as water parameters that support the growth and development of nudibranchs in Humbolt Bay, Jayapura City. The research method used is the Underwater Visual Census (UVC) method at a depth of 5 m and 10 m with an observation width of 2.5 to the right and to the left along 100 m. The results showed that there were 14 types of nudibranchia with 122 individuals, with the dominant species being Phyllidiella pustulosa and Phyllidia varicosa. The density of the nudibranch is quite low, which is around 0.022-0.036 individuals / m2, the Diversity Index is low, which is around 1.228-1.463, the Uniformity Index is classified as a small population, 0.120-0.260 (close to 0), and the Dominance Index is quite stable, namely 0.270-0.402. Based on water parameter data It was found that the waters and habitats in Jayapura City's Humbolt Bay are under pressure as indicated by the decline in the quality of the ecosystem, but are still in normal conditions that support the growth and development of marine life, especially nudibranchs.","PeriodicalId":199936,"journal":{"name":"Tropical Fisheries Management Journal","volume":"5 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131938691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Length-Weight Relationship and Condition Factor of Layang Fish (Decapterus russelli) Landed at Tenda Fish Landing Base, Gorontalo 高伦塔洛天达鱼类登陆基地拉阳鱼(Decapterus russelli)登陆的长重关系及条件因子

Tropical Fisheries Management Journal Pub Date : 2021-06-14 DOI: 10.29244/JPPT.V5I1.34604

Frismarwati Wahyuni Lawadjo, Munirah Tuli, N. Pasisingi

引用次数: 5

Coral Cover and Diversity Life form in Different Geomorpholgy Zone at Kampung Baru Waters, Bintan Island 民丹岛甘榜巴鲁水域不同地貌带的珊瑚覆盖及多样性生命形态

Tropical Fisheries Management Journal Pub Date : 2021-06-14 DOI: 10.29244/JPPT.V5I1.34550

Anna Kristine Sigarlaki, A. Nugraha, D. Kurniawan

{"title":"Coral Cover and Diversity Life form in Different Geomorpholgy Zone at Kampung Baru Waters, Bintan Island","authors":"Anna Kristine Sigarlaki, A. Nugraha, D. Kurniawan","doi":"10.29244/JPPT.V5I1.34550","DOIUrl":"https://doi.org/10.29244/JPPT.V5I1.34550","url":null,"abstract":"The purpose of this study was to compare the percentage of cover conditions, diversity index, uniformited index and dominance index of life form coralin the zones reef flate and reef slope in Kampung Baru Lagoi, Bintan Regency. This research was conducted using the method Line Intersept Transect (LIT) with the line transect length used was 30 meters, three replications with a gap of 5 meters. The results showed, at point station 1 in the zone flate Reef the percentage of live coral cover was 36,92% are categorized as moderate. Forms the coral growth Life form were found as many 9 types of Life form hard corals namely ACB, ACT, ACE, ACS, ACD, CB, CM, CE, CS with a diversity index of 2,53 are categorized as moderate, a uniformited index of 0,80 are categorized as high, and a dominance index of 0,22 are categorized as low. At the point station 2 in the zone slope Reef the percentage of live coral cover was 50,44% are categorized as good. Forms of coral growth (Life form) were found as many as 8 types of Life form hard corals namely ACT, ACE, CB, CM, CE, CS, CF and CMR, with a diversity index of 2,13 are categorized as moderate, a uniformited index of 0,71 are categorized as high, and a dominance index of 0,30 are categorized as low.","PeriodicalId":199936,"journal":{"name":"Tropical Fisheries Management Journal","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128881022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identifikasi Dan Prevalensi Ektoparasit Ikan Kerapu Lumpur (Epinephelus tauvina) Pada Keramba Jaring Apung Di Kuala Langsa

Tropical Fisheries Management Journal Pub Date : 2021-06-14 DOI: 10.29244/JPPT.V5I1.34544

Asha Annur, Suri Purnama Febri, Muhammad Syahril

{"title":"Identifikasi Dan Prevalensi Ektoparasit Ikan Kerapu Lumpur (Epinephelus tauvina) Pada Keramba Jaring Apung Di Kuala Langsa","authors":"Asha Annur, Suri Purnama Febri, Muhammad Syahril","doi":"10.29244/JPPT.V5I1.34544","DOIUrl":"https://doi.org/10.29244/JPPT.V5I1.34544","url":null,"abstract":"Greasy grouper (Epinephelus tauvina) is one type of marine fish that has economic value and can be developed into a promising cultivation commodity. The purpose of this research is to find Types of parasites and prevalence rates of ectoparasite in Greasy grouper (Epinephelus tauvina) on floating net cages in Kuala Langsa. The research method was conducted using a survey method. Sample taken by purposive sampling, amounting to 20 Greasy grouper (Epinephelus tauvina) with a size of 20-25cm and were observed at Laboratory Faculty of Agriculture, Samudra University. Fish body organs were observed including all parts of the fins, mucus, gills, then identification using microscopic and macroscopic methods. The results obtained were ectoparasites infecting Greasy grouper (Epinephelus tauvina) only one species from the genus Dactylogyrus which was found mostly in floating net cages cultivation in Kuala Langsa. These ectoparasite were found in the gill lamella Greasy grouper (Epinephelus tauvina), with the overall sample prevalence rate at 50% and the attack rate classified as “very frequent”.","PeriodicalId":199936,"journal":{"name":"Tropical Fisheries Management Journal","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129894722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Pendugaan Status Sumberdaya Perikanan Skala Kecil di Kota Semarang 三宝垄渔业规模的预测

Tropical Fisheries Management Journal Pub Date : 2021-06-14 DOI: 10.29244/JPPT.V5I1.34756

Hendi Kristiana, Jamaludin Malik, Nurafiat Anwar

{"title":"Pendugaan Status Sumberdaya Perikanan Skala Kecil di Kota Semarang","authors":"Hendi Kristiana, Jamaludin Malik, Nurafiat Anwar","doi":"10.29244/JPPT.V5I1.34756","DOIUrl":"https://doi.org/10.29244/JPPT.V5I1.34756","url":null,"abstract":"Perikanan di Kota Semarang didominasi oleh perikanan skala kecil. Hal ini ditandai dengan penggunaan armada perikanan paling besar 10 gros ton yang beroperasi di dekat pantai. Data statistik perikanan selama 10 tahun (2010-2019) terlihat hasil tangkapan yang mulai menurun, sementara perkembangan jumlah unit penangkapan yang semakin meningkat. Hal ini mengindikasikan stok ikan mulai berkurang dan tingkat pemanfaatan sumberdaya perikanan mengarah overfishing. Hal tersebut diperkuat dengan hasil pengamatan langsung di lapangan yang menunjukkan jumlah hasil tangkapan cenderung sedikit dan ukuran ikan yang tertangkap cenderung kecil. Tujuan penelitian ini adalah menganalisis status sumberdaya perikanan skala kecil di Kota Semarang. Metode yang dipakai dalam penelitian ini adalah analisis data runtun waktu (time series) produksi surplus yaitu data dari hasil tangkapan (ton/tahun) dan jumlah alat tangkap (unit), dalam kurun waktu 10 tahun (2010-2019), untuk menghitung nilai catch per-unit effort (CPUE), potensi maksimum lestari (MSY), jumlah effort optimum (fopt), tingkat pemanfaatan (TP) dan tingkat kapasitas (TK). Penelitian ini diperoleh hasil adanya tren penurunan CPUE; hasil tangkapan/produksi perikanan eksisting tahun 2019 telah melewati nilai MSY-nya yaitu sebesar 479 ton/tahun (Schaefer) dan 439,11 ton/tahun (Fox); tingkat pemanfaatan lebih dari 100% yaitu sebesar 108-127% (Schaefer) dan 118-138% (Fox), sehingga perikanan skala kecil di Kota Semarang berada pada tingkat over-exploited. Berdasarkan analisis fopt menunjukkan jumlah alat tangkap yang digunakan (fexisting) telah melebihi jumlah optimumnya dengan tingkat kapasitas penangkapan melebihi 100%, sehingga perikanan skala kecil di Kota Semarang telah mengalami kelebihan kapasitas penangkapan (overcapacity).","PeriodicalId":199936,"journal":{"name":"Tropical Fisheries Management Journal","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123472973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Macrozoobenthos Community Structure and its Relationship with Waters Quality of Kampung Baru, Sebong Lagoi Village, Bintan Regency 民丹县Sebong Lagoi村Kampung Baru大型底栖动物群落结构及其与水质的关系

Tropical Fisheries Management Journal Pub Date : 2021-06-14 DOI: 10.29244/JPPT.V5I1.34541

W. Muzammil, N. Prihatin, Winny Retna Melani

{"title":"Macrozoobenthos Community Structure and its Relationship with Waters Quality of Kampung Baru, Sebong Lagoi Village, Bintan Regency","authors":"W. Muzammil, N. Prihatin, Winny Retna Melani","doi":"10.29244/JPPT.V5I1.34541","DOIUrl":"https://doi.org/10.29244/JPPT.V5I1.34541","url":null,"abstract":"Kampung Baru is an area on Bintan Island which is located in Sebong Lagoi Village, Teluk Sebong District, Bintan Regency, Riau Islands Province. This study aimed at determine the structure of the macrozoobenthos community, the condition of the physico-chemical parameters of the waters and the relationship between macrozoobenthos and water quality. This research was conducted using a survey method. Sampling site points of this study using random sampling method with 30 sampling site points at high and low tide. The parameters measured are physical, chemical and biological parameters of the water. The results showed that there were 18 species of macrozoobenthos consisting of 4 classes of macrozoobenthos and 3 phylum at 30 sampling site points, namely mollusca, annelida, and arthhopoda phylum. Based on the ecological index value, it is known that the macrozoobenthos species in Kampung Baru waters are still classified as low with disproportionate conditions. The values of diversity index (low), uniformity index (high) and dominance index (low). Water quality of Kampung Baru waters at high tide still meet quality standards of Kepmen-LH No. 51 of 2004, but at low tide the values of temperature, DO, and salinity parameters did not meet quality standards. The relationship between macrozoobenthos parameters and water quality using PCA analysis where density parameters have a relationship with two parameters, namely temperature and pH.","PeriodicalId":199936,"journal":{"name":"Tropical Fisheries Management Journal","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126507252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Tingkat Kerusakan Mangrove pada Desa Jatimalang, Jatikontal dan Ngentak di Pesisir Kabupaten Purworejo, Jawa Tengah

Tropical Fisheries Management Journal Pub Date : 2021-05-05 DOI: 10.29244/JPPT.V5I1.34403

Dwi Rosalina Dwi, Khairul Jamil

{"title":"Tingkat Kerusakan Mangrove pada Desa Jatimalang, Jatikontal dan Ngentak di Pesisir Kabupaten Purworejo, Jawa Tengah","authors":"Dwi Rosalina Dwi, Khairul Jamil","doi":"10.29244/JPPT.V5I1.34403","DOIUrl":"https://doi.org/10.29244/JPPT.V5I1.34403","url":null,"abstract":"Hutan mangrove merupakan organisme atau tumbuhan yang mampu hidup pada salinitas yang relatif tinggi dan umumnya terdapat di seluruh pantai serta tumbuh berkembang pada daerah yang mempunyai pasang surut air laut. Penelitian bertujuan mengetahui kondisi ekosistem mangrove di Pesisir Selatan Purworejo. Dilaksanakan dari bulan Maret sampai dengan bulan April berlokasi di tiga desa yang berada di Kecamatan Purwodadi, Kabupaten Purworejo, Jawa Tengah. Metode yang digunakan untuk pengambilan data adalah Metode Transek Garis dan Petak Contoh (Transect line plot). Hasil pengamatan ditemukan 3 jenis mangrove, yang ditemukan pada lokasi, yaitu: Rhizophora mucronata, Sonneratia alba dan Avicennia alba, terdapat juga mangrove Acanthus ilicifolius, dan Nhypa fruticans, diketahui juga kerapatan mangrove tertinggi pada stasiun III 9900 Ind/Ha, tutupan jenis Sonneratia alba 50.48, frekuensi tertinggi pada jenis mangrove Sonneratia alba dan Rhizophora mucronata. Indeks nilai penting tingkat pohon, pancang, dan semai yaitu tingkat pohon dari Sonneratia alba sebesar 215, tingkat pancang dari jenis Sonneratia alba sebesar 142, dan semai untuk Rhizophora mucronata dan Sonneratia alba sebesar 100.","PeriodicalId":199936,"journal":{"name":"Tropical Fisheries Management Journal","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115739687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Status Perikanan Tangkap di Sungai Sebangau dan Sungai Katingan, Taman Nasional Sebangau Kalimantan Tengah

Tropical Fisheries Management Journal Pub Date : 2021-04-30 DOI: 10.29244/JPPT.V5I1.33767

Sifa Nurseptiani, M. M. Kamal, Taryono Taryono

{"title":"Status Perikanan Tangkap di Sungai Sebangau dan Sungai Katingan, Taman Nasional Sebangau Kalimantan Tengah","authors":"Sifa Nurseptiani, M. M. Kamal, Taryono Taryono","doi":"10.29244/JPPT.V5I1.33767","DOIUrl":"https://doi.org/10.29244/JPPT.V5I1.33767","url":null,"abstract":"Sebangau dan Katingan sebagian alirannya menjadi batas terluar dari kawasan konservasi Taman Nasional Sebangau (TNS) Kalimantan Tengah. Kedua sungai mendapat pengaruh langsung dari hutan rawa gambut dan menghasilkan karakteristik perairan hitam. Sungai memiliki sumberdaya ikan yang dimanfaatkan melalui kegiatan perikanan tangkap oleh masyarakat sungai, yakni nelayan. Kegiatan penangkapan berlangsung di wilayah induk dan anak sungai sebagai wilayah komunal dan terkontrol. Wilayah penangkapan mempengaruhi kondisi perikanan tangkap, hal ini menjadi permasalahan dalam penelitian ini. Tujuan penelitian ini adalah menguraikan pelaku usaha perikanan, identitas penangkapan, hasil tangkapan, dan wilayah penangkapan. Lokasi penelitian bertempat di induk dan anak Sungai Sebangau dan Katingan, berlangsung dari bulan Oktober hingga Desember 2019. Metode penelitian menggunakan metode deskriptif melalui pendekatan kualitatif. Pengumpulan data primer yaitu observasi, wawancara, dan dokumentasi, data sekunder melalui studi dokumen dari berbagi sumber. Tahapan analisis data terdiri atas tiga tahap yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian yang dapat adalah usaha perikanan tangkap dilakukan oleh nelayan dengan alat tangkap tradisional. Nelayan memiliki hasil tangkapan berupa ikan konsumsi air tawar yang terdiri dari delapan jenis famili ikan per sungai. Nelayan melakukan penangkapan di bagian induk dan anak sungai. Wilayah penangkapan terdiri atas dua wilayah, yakni wilayah komunal menempati induk Sungai Sebangau dan seluruh wilayah Sungai Katingan dan wilayah terkontrol berlokasi di anak Sungai Sebangau. Wilayah komunal bersifat terbuka sedangkan wilayah terkontrol bersifat tertutup, hal ini mempengaruhi kondisi perikanan yang berlangsung di setiap wilayah.","PeriodicalId":199936,"journal":{"name":"Tropical Fisheries Management Journal","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123551666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kerentanan Bycatch Tuna Dari Perikanan Handline di Selatan Samdera Hindia: Pencatatan Pelabuhan Sendang Biru-Malang

Tropical Fisheries Management Journal Pub Date : 2020-12-31 DOI: 10.29244/JPPT.V4I2.32945

Yonvitner Yonvitner, Rahmat Kurnia, Mennofatria Boer, Helmy Akbar, Surya Gentha Akmal

引用次数: 0