STATUS PENANGKAPAN IKAN HIAS DI KEPULAUAN SERIBU TAHUN 2007-2009 (The Status of Ornamental Reef Fish Catch in Seribu Islands (2007-2009))

Marine ornamental reef fish trade is a huge industry with trade value USD 200-350 million/ year. Seribu Islands, Jakarta is one of the main ornamental reef fish catch area in Indonesia. The aim of this study was to compare ornamental fishing activities with total allowable catch (TAC). Ornamental reef fish catch data were collected from fishermen annually within 2007-2009, while reef fish population data are collected using underwater visual census every two years. The results showed that the total catch of 18 marine ornamental reef fish species exceeded TAC in 2007. Then there were 22 species in 2008 and 17 species of marine ornamental fish in 2009 that their catches were more than TAC. In addition, fish that are always included in the ten highest caught fish within 3 years were Cryptocentrus cinctus, Pomacentrus alleni, Pterosynchiropus splendidus, Premnas biaculeatus, and Amphiprion ocellaris. Their catches exceeded TAC. Key words: Marine ornamental fish, Seribu Islands, Total Allowable Catch (TAC)

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Tutupan karang dan komposisi ikan karang didalam dan luar kawasan konservasi pesisir timur Pulau Weh, Sabang

DEPIK ◽

10.13170/depik.3.2.1468 ◽

2014 ◽

Vol 3 (2) ◽

Cited By ~ 1

Author(s):

Riany Hastuty ◽

Yonvitner . ◽

Luky Adrianto

Keyword(s):

Protected Areas ◽

Reef Fish ◽

Marine Protected Areas ◽

Conservation Areas ◽

Visual Census ◽

Marine Protect Area ◽

Underwater Visual Census ◽

Protect Area ◽

Reef Fish Species ◽

Composition Point

Abstract. The study was conducted onApril to October 2013 in marine protected areas of Weh Island. The samplings were done at10 siteswhere 6 sitesare situatedinside of conservation areas, while 4 sites are situated outside of conservation areas. The purpose ofthis study was to evaluate coral covers andreef fish composition. Point intersept transect(PIT), underwater visual census (UVC) and fish catches were used to examine coral covers, abudance and biomass of reef fish. The results showed that average of coral covers, abudance and biomass of target fishes inside conservation were 54%, 1,662 ind/ha and 408.78 kh/ha, respectively, while than outside conservation was 33.05%, 1,058 ind/ha and 307.77 kg/ha, respectively. Total of reef fish species and the catch were increased from previous years, for example there are 60 species in 2010 and it was increased to 83 species in 2013. In addition the fishermen catches were increased slightly from 3.03 kg/trip in 2008 to 3.6 kg/trip in 2013. It is concluded that the coral condition and reef fish composition in the conservation are much better compared to outside of conservation areas.Keywords : Marine protect area; reef fish; Weh Island Abstrak. Penelitian ini dilakukan pada April sampai Oktober 2013 di Kawasan Konservasi Perairan Pesisir Timur Pulau Weh yang terdiri dari 10 stasiun dimana 6 stasiun berada didalam kawasan konservasi dan 4 stasiun diluar kawasan konservasi.Penelitian ini bertujuan untuk menilai persentase tutupan karang dan komposisi ikan karang. Sampling menggunakan transek titik dan underwater visual sensus (UVC) dan hasil tangkapan.Hasil penelitian menunjukkan bahwa rata-rata kondisi tutupan karang, kelimpahan dan biomassa ikan target dikawasan konservasi yaitu 54%, 1.662 ind/ha dan 408,78 kg/ha, secara berurutan, sedangkan diluar kawasan konservasi adalah 33,05%, 1.058 ind/ha dan 307,77 kg/ha biomassa ikan target.Jumlah jenis ikan karang di kawasan konservasi meningkat, yaitu 60 jenis tahun 2010 menjadi 83 jenis pada tahun 2013 dan rata-rata hasil tangkapan tahun 2008 yaitu 3,03 kg/trip dan tahun 2013 yaitu 3,6 kg/trip. Dapat disimpulkan bahwa kondisi karang dan komposisi jenis dan ukuran ikan lebih baik di dalam kawasan konservasi berbanding diluar kawasan.Kata kunci: Kawasan Konservasi; Ikan karang; Pulau Weh

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Francisella noatunensis subsp. orientalis infection in Indo-Pacific reef fish entering the United States through the ornamental fish trade

Journal of Fish Diseases ◽

10.1111/jfd.12071 ◽

2013 ◽

Vol 36 (7) ◽

pp. 681-684 ◽

Cited By ~ 18

Author(s):

A C Camus ◽

J A Dill ◽

A J McDermott ◽

T M Clauss ◽

A L Berliner ◽

...

Keyword(s):

United States ◽

Reef Fish ◽

The United States ◽

Ornamental Fish ◽

Ornamental Fish Trade ◽

Fish Trade

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Diversity of reef fish in Halang Melingkau Island, South Kalimantan, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d211046 ◽

2020 ◽

Vol 21 (10) ◽

Author(s):

Frans Tony ◽

SOEMARNO SOEMARNO ◽

DEWA GEDE RAKA WIADNYA ◽

LUCHMAN HAKIM

Keyword(s):

Water Quality ◽

Coral Reef ◽

Reef Fish ◽

Diversity Index ◽

Trophic Relationships ◽

Quality Data ◽

Underwater Visual Census ◽

Water Quality Data ◽

Coral Reef Ecosystems ◽

Reef Fish Species

Abstract. Tony F, Soemarno, Wiadnya DGR, Hakim L. 2020. Diversity of reef fish in Halang Melingkau Island, South Kalimantan, Indonesia. Biodiversitas 21: 4804-4812. Reef fish is one benchmark to determine a coral reef ecosystem's biodiversity. Reef fish communities are important in coral reef ecosystems because of their trophic relationships with other biotic components. The aim of this study was to determine the biodiversity of reef fish on Halang Melingkau Island, Kotabaru District, South Kalimantan, Indonesia. This research was conducted in March-August 2019. Coral reef fish data were collected using an underwater visual census method. Transects were applied as close as possible to the substrate using a 50 m roll-up measuring tape. Three transects were applied at each station. A total of 98 reef fish species from 19 families were recorded in this study. The fish community in Halang Melingkau island belongs to the family of Pomacentridae, Labridae, Chaetodontidae, Scaridae, Haemulidae, Lutjanidae, Scolopsidae, Serranidae, Caesionidae, Holocentridae, Siganidae, Pomacanthidae, Apogonidae, Pempheridae, Scorpaenidae, Tetraodontidae, Blenniidae, Platacidae, and Zanclidae. The highest abundance of reef fish was 1.88 ind/m2, and the lowest was 0.14 ind/m2. The dominance index (C) ranged from 0.03 to 0.13, the homogeneity index (E') ranged from 0.72 and 0.94, and the diversity index (H') ranged from 2.17 to 3.53. Water quality data measurements of temperature, brightness, current speed, pH, and DO (Dissolved Oxygen) were within the tolerance limits of water quality standards based on the Minister of Environment Decree No. 51 of 2004, Republic of Indonesia.

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Enhancing reef fish diversity using artificial reef-building: A case study of coral reef rehabilitation on Nyamuk Island, Anambas Islands

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/944/1/012030 ◽

2021 ◽

Vol 944 (1) ◽

pp. 012030

Author(s):

B Prabowo ◽

N Rikardi ◽

M A Setiawan ◽

P Santoso ◽

Yonvitner ◽

...

Keyword(s):

Coral Reef ◽

Reef Fish ◽

Diversity Index ◽

Artificial Reef ◽

Fish Diversity ◽

Underwater Visual Census ◽

Target Fish ◽

Reef Fish Species ◽

Fish Group

Abstract CCMRS-IPB conducted coral reef rehabilitation at damaged coral reefs around Nyamuk Island. Those artificial reef buildings for rehabilitation gave shelter spaces for reef fish. This research aims to calculate the effect of coral reef-building, which enhances rugosity to the reef fish diversity around the rehabilitation sites. The study was conducted on Nyamuk Island in the Anambas Islands. Reef fish were sampled annually from 2014 to 2019 using the underwater visual census. The Diversity index and non-Metric Multidimensional Scaling were built to discover reef fish diversity, and reef fish species were affected the most. Yearly data shows an escalation number of reef fish abundance and richness at the end of 2019. The major reef fish group is found to have constant diversity throughout the year compared to other functional groups. The target reef fish group came to this rehabilitation ecosystem primarily attracted by nourishment availability. There is a shift in the reef fish diversity from the early year to the project end. Generally, major reef fish groups will be refuged first around the rehabilitation sites, especially territorial types. Target fish groups from herbivorous and carnivorous types will mostly come along after their food availability and location to get around.

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Population parameters of several groupers (Famili Serranidae) in Labuan Bajo waters, East Nusa Tenggara

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/919/1/012001 ◽

2021 ◽

Vol 919 (1) ◽

pp. 012001

Author(s):

P F Rachmawati ◽

R Puspasari

Keyword(s):

Reef Fish ◽

Assessment Tool ◽

Growth Parameters ◽

Stock Assessment ◽

Fish Population ◽

Distribution Data ◽

Population Parameters ◽

Length Frequency ◽

Daily Data ◽

Fish Catch

Abstract Labuan Bajo has a fertile aquatic ecosystem, one of them is the coral reef ecosystem. This condition happened because of the supply of nutrients that are carried through Indonesia Through Flow and the local upwelling phenomena. Various species of reef fish of various sizes have been caught in Labuan Bajo waters. In general, the type of reef fish that dominates is grouper fish catch by using handline fishing gear. Furthermore, there is damage that occurs in the coastal ecosystem causes changes in ecological functions and disrupted ecosystem benefits. In addition, pressure from overuse did not provide opportunities for resources to carry out recovery makes the condition of resource stocks threatened. This study aims to determine the parameter aspects of the population of several types of grouper fish in Labuan Bajo waters. The types of grouper studied included Plectropomus leopardus, P. maculatus, P. oligacanthus, and Variola albimarginata. Data collection was carried out by enumerators from April to August 2019 which included the daily data on the length and weight distribution of groupers. Length-frequency distribution data is analyzed by estimating fish population parameters using the Electronic Length Frequency Analysis (ELEFAN I) program which is packaged in the FAO-ICLARM Stock Assessment Tool II (FiSAT II) software. The results of the analysis showed the equation of growth parameters for Von Bartalanffy for P. leopardus is Lt = 89.06(1-e−0.24(t+0.52)); P. maculatus is Lt = 76(1-e−0.54(t+0.23)); P. oligacanthus is Lt = 72.32(1-e−0.66(t+0.19)); and V. albimarginata is Lt = 45(1-e−0.51(t+0.29)). The length at first birth of each species is Lt=0 P. leopardus = 10.45 cm, Lt=0 P. maculatus = 8.88 cm, Lt=0 P. oligacanthus = 8.52 cm, and Lt=0 V. albimarginata = 6.19 cm. Meanwhile, the exploitation rate (E) of P. leopardus, P. maculatus, P. oligacanthus, and V. albimarginata were 0.81; 0.53; 0.45; and 0.70.

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POTENSI IKAN KARANG DI PERAIRAN PESISIR NEGERI HUKURILA, KECAMATAN LEITIMUR SELATAN KOTA AMBON

TRITON : Jurnal Manajemen Sumberdaya Perairan ◽

10.30598/tritonvol15issue2page46-57 ◽

2019 ◽

Vol 15 (2) ◽

pp. 46-57

Author(s):

Dicky Sahetapy ◽

Debby Selanno ◽

Novianty Tuhumury

Keyword(s):

Species Richness ◽

Coral Reef ◽

Species Diversity ◽

Reef Fish ◽

Standing Stock ◽

Stable Condition ◽

Underwater Visual Census ◽

Species Dominance ◽

Reef Fish Species ◽

High Species Richness

The Study was conducted on April to May 2019 in the coastal waters of Hukurila village, Leitimur Selatan District of Ambon city with the aims to analyzed taxon composition, species diversity, density, standing stock, potency of target species and status of reef fish. Reef fish data were collected at four reef stations using UVC method. The result showed that there were 192 species of reef fish inhabit coral reef of Hukurila village. Pomacentridae, Labridae and Chaetodontidae have high species richness, while other seven families have low species richness. Relative diversity of reef fish in the study area can be classified in poor to moderate category, and the estimated number of species of reef fish was 369 species. Species diversity of reef fish is high, with low species dominance in the community and species evenness of reef fish in their community is in stable condition. Density of reef fish between reef station ranged of 2.9-4.0 ind. m-2. Furthermore, the standing stock of reef fish ranged of 28,840-40,400 ind.ha-1 and biomass of target reef fish species ranged of 1.67-5.14 (± 3.53) tons ha-1 of coral reefs. Status of reef fish in the coral reef of Hukurila village belong to high category. ABSTRAK Penelitian dilakukan dari April sampai Mei 2019 di perairan pesisir Negeri Hukurila, Kecamatan Leitimur Selatan Kota Ambon dengan tujuan menganalisis komposisi taksa, diversitas spesies, densitas, sediaan cadang, potensi ikan karang spesies target dan status ikan karang. Data ikan karang dikumpulkan dari 4 stasiun dengan metode underwater visual census (UVC). Ditemukan 192 spesies ikan karang Menempati terumbu karang Hukurila. Famili Pomacentridae, Labridae, Chaetodontidae memiliki kekayaan spesies tinggi, sementara tujuh famili memiliki kekayaan spesies rendah. Diversitas relatif ikan karang di areal studi termasuk kategori miskin hingga moderat, dan diestimasi jumlah spesies ikan karang pada habitat terumbu Negeri Hukurila sebanyak 369 spesies. Diversitas spesies ikan karang tinggi, dengan dominansi spesies rendah dalam komunitas dan keserasian spesies ikan karang dalam kondisi Stabil. Densitas ikan karang antara stasiun terumbu berkisar antara 2.9 - 4.0 ind/m2. Sediaan cadang ikan karang antara stasiun terumbu berkisar antara 28.840 - 40.400 ind/ha dan potensi spesies target berkisar 1,67-5,14 (± 3,53) ton/ha terumbu karang. Kondisi ikan karang di terumbu Negeri Hukurila termasuk kategori tinggi. Kata kunci: Ikan karang, keanekaragaman spesies, kepadatan, sediaan cadang, potensi

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STATUS STOK IKAN KARANG TARGET DI KAWASAN KONSERVASI TAMAN NASIONAL KARIMUNJAWA

Jurnal Penelitian Perikanan Indonesia ◽

10.15578/jppi.22.1.2016.9-16 ◽

2016 ◽

Vol 22 (1) ◽

pp. 9 ◽

Cited By ~ 1

Author(s):

Ernik Yuliana ◽

Mennofatria Boer ◽

Achmad Fahrudin ◽

M Mukhlis Kamal ◽

Efin Muttaqin

Keyword(s):

Reef Fish ◽

Secondary Data ◽

Reef Fishes ◽

Fish Mortality ◽

Human Consumption ◽

Fish Length ◽

Catch Per Unit Effort ◽

Central Java ◽

The Status ◽

Fish Catch

Sumber daya ikan karang di Taman Nasional Karimunjawa (TNKJ) mengalami tekanan eksploitasi seiring dengan peningkatan permintaan sumber daya ikan untuk memenuhi kebutuhan konsumsi ikan. Tulisan ini bertujuan untuk menganalisis status stok ikan karang target di TNKJ. Penelitian dilakukan di TNKJ Kabupaten Jepara, Provinsi Jawa Tengah, pada April-Agustus 2015. Pengumpulan data menggunakan metode survei dan observasi, mencakup data primer dan sekunder. Empat jenis ikan karang dipilih untuk mewakili ikan karang, yaitu ekor kuning, pisang-pisang, sunu macan, dan jenggot. Hasil tangkapan dianalisis dengan CPUE dan indeks musim. Mortalitas diduga dengan kurva penangkapan yang dilinierkan berdasarkan data komposisi panjang ikan. Penilaian status stok menggunakan metode analitik dengan menghitung laju eksploitasi. Hasil penelitian menunjukkan bahwa CPUE ikan karang mempunyai tren yang meningkat. Ikan karang secara agregat tersedia pada setiap bulan sepanjang tahun, tidak ada musim puncak penangkapan dan musim paceklik. Ikan pisang-pisang dan sunu macan telah dieksploitasi melebihi batas kelestariannya, yaitu 114,50% dan 154,00%. Coral reef fish resources in Karimunjawa National Park (KNP) are under exploitation pressure with increasing demand of fish for human consumption. This study is aimed to analyze the status of target reef fishes in KNP. Field survey was conducted in KNP District of Jepara, Central Java, in April-August 2015. Data consists of primary and secondary data was obtained by using survey and observation method. Four species of reef fishes were chosen to represent reef fish, namely yellow tail fusilier (Caesio cuning), blue and gold fusilier (Caesio caerulaurea), highfin coral grouper (Plectropomus oligocanthus), and dash-and-dot goatfish (Parupeneus barberinus). Reef fish catch data was analyzed using catch per unit effort (CPUE) and seasonal index. Fish mortality was predicted by catch curve based on length-converted. The results indicate increasing trend of reef fishes CPUE. Reef fishes in aggregate are available every month in year-round and there is no seasonality trend. Fish length analysis reveals that status of blue and gold fusilier and highfin coral grouper have been exploited over maximum sustainable limit, with the rate of exploitation 114.50% and 154.00%, respectively.

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From Class to Culture: Immigration, Recession, and Daily Ethnic Boundaries in Belgium, 1940s–1990s

International Review of Social History ◽

10.1017/s0020859007003331 ◽

2008 ◽

Vol 53 (1) ◽

pp. 37-61 ◽

Cited By ~ 3

Author(s):

Leen Beyers

Keyword(s):

Population Data ◽

Labour Migration ◽

European Legislation ◽

Ethnic Boundaries ◽

Successful Adaptation ◽

Mining Region ◽

European Culture ◽

The Status ◽

Migration Politics

Each society has myths about the successful adaptation of former migrants. Historians need to deconstruct these myths by dealing with the imagined boundaries between “indigenous” and “foreign” people that give way to them. This essay does so by comparing how children of Polish interwar immigrants and children of Italian postwar immigrants came to be seen as insiders in the Belgian Limburg mining region. Oral testimonies, associational records, and population data reveal that Poles achieved the status of industrious, adapted people around 1960, due to the equal promotion of Polish and indigenous miners' sons in the mines and to the labour migration regime which constructed Italians as unskilled outsiders. Around 1980, the industrial recession caused unemployment among young Italians. However, migration politics has, since the recession, primarily focused on culture. Moreover, European legislation constructed foreignness as non-European. Consequently, it is not class, but European culture which has turned Italians into “integrated” people.

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