scholarly journals Checklist of endemic (Adrianichthyidae, Gobiidae, Zenarchopteridae) and introduced fish in Lake Poso, Sulawesi, Indonesia

2021 ◽  
Vol 869 (1) ◽  
pp. 012060
Author(s):  
K P Bandjolu ◽  
E Madiyono ◽  
M Herjayanto ◽  
A Gani ◽  
M Nur ◽  
...  
Keyword(s):  
Fish Species ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
Introduced Fish ◽  
Exotic Fish ◽  
Anabas Testudineus ◽  
Channa Striata ◽  
Endemic Fish ◽  
The Government ◽  
High Diversity

Abstract Lake Poso is one of the ancient lakes in the world. This lake is known to have high diversity of endemic fish. Several exotic fish species have been introduced to increase the fisheries production in the lake. However, it is reported that the introduced fish is one of the causes of the threat of the existence of endemic fish in this lake. This study aimed to obtain the latest information on endemic (Adrianichthyidae, Gobiidae, and Zenarchopteridae), and introduced fish in Lake Poso. The research was carried out from May to July 2019 at 17 stations on the coast and rivers of Lake Poso. Fish were collected using a seine net, tray net, and hook and line. The results showed that there were 13 species of fish belonging to eight families and 11 genera. A total of six endemic fish species were still found in this study, namely Adrianichthys oophorus, Oryzias nebulosus, O. nigrimas, O. orthognathus, Mugilogobius sarasinorum, and Nomorhamphus celebensis. Seven species of introduced fish were found, namely Anabas testudineus, Aplocheilus panchax, Channa striata, flowerhorn (Cichlasoma sp.), Melanocromis auratus, Oreochromis niloticus, and Trichopodus trichopterus. Cichlids (flowerhorn, M. auratus, and O. niloticus) have the potential to be invasive due to their adaptability and ease of reproduction in Lake Poso. Conservation of the fish endemic to Lake Poso must be a serious concern for the government, academics, and the community. Ex-situ conservation can be a strategy to conserve the endemic fish of Lake Poso through controlled captivity.

FREHSWATER FISH OF LAKES AND IT’S INLET RIVERS IN SULAWESI TENGAH PROVINCE, INDONESIA

2020 ◽  
Vol 4 (1) ◽  
pp. 1-9
Author(s):  
Muh. Herjayanto ◽  
Abdul Gani ◽  
Yeldi S Adel ◽  
Novian Suhendra
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
Endemic Species ◽  
Oreochromis Niloticus ◽  
Ornamental Fish ◽  
Ex Situ ◽  
Introduced Fish ◽  
Endemic Fish ◽  
The Government

Sulawesi Tengah Province (Sulteng) is in the Wallacea region wich have endemic fish. In addition, the government has also introduced fish for the welfare of community. So far the records of freshwater fish in Sulteng have not been well summarized. Therefore, we explore the results of previous studies fish species in 11 lakes and their inlet rivers in Sulteng. The lake (L) is L. Bolano (Bolanosau), L. Lindu, L. Poso, L. Rano, L. Rano Kodi and L. Rano Bae, L. Sibili, L. Talaga (Dampelas), L. Kalimpa’a (Tambing), L. Tiu and L. Wanga. In addition, we also observed fish in seven lakes between 2012-2019. Fishing uses cast net, seine net, gillnet, and hook and line. Summary and observation result showed that there were 18 families and 27 genera of fish in 11 lake and their inlet rivers in Sulteng. Then there are 15 endemic species in 3 habitats (Lindu, Poso and Tiu), namely Adrianichthys 4 species, Oryzias 6 species, Mugilogobius 2 species and Nomorhamphus 3 species. Introduced fish as many as 23 species, Oreochromis niloticus the most found (8 lakes). Lake Poso (30 species) has the most fish species. Utilization of fish in 11 lake as consumption fish and ornamental fish. Especially for endemic fish, in situ (habitat) and / or ex situ (aquaculture) conservation needs to be carried out in order to remain sustainable. Through aquaculture, the breeding of endemic species that have the potential as ornamental fish and/or consumption can be avoided from exploitation (overfishing) in nature.

scholarly journals Modelling critical factors affecting the distribution of the vulnerable endemic Eastern Iberian barbel (Luciobarbus guiraonis) in Mediterranean rivers

2015 ◽  
Vol 17 (1) ◽  
pp. 264 ◽  
Author(s):  
E. J. OLAYA-MARIN ◽  
F. MARTÍNEZ-CAPEL ◽  
R. GARCÍA-BARTUAL ◽  
P. VEZZA
Keyword(s):  
River Basin ◽  
Fish Species ◽  
Model Parameters ◽  
Physical Habitat ◽  
Mediterranean Rivers ◽  
Exotic Fish ◽  
Gradient Descent Algorithm ◽  
River Basin District ◽  
Endemic Fish ◽  
Exotic Fish Species

Luciobarbus guiraonis (Eastern Iberian barbel) is an endemic fish species restricted to Spain, mainly distributed in the Júcar River Basin District. Its study is important because there is little knowledge about its biology and ecology. To improve the knowledge about the species distribution and habitat requirements, nonlinear modelling was carried out to predict the presence/absence and density of the Eastern Iberian barbel, based on 155 sampling sites distributed throughout the Júcar River Basin District (Eastern Iberian Peninsula). We used multilayer feed-forward artificial neural networks (ANN) to represent nonlinear relationships between L. guiraonis descriptors and variables regarding the physical habitat and biological components (macroinvertebrates, fish, riparian forest). The gradient descent algorithm was implemented to find the optimal model parameters; the importance of the ANN’s input variables was determined by the partial derivatives method. The predictive power of the model was evaluated with the Cohen’s kappa (k), the correctly classified instances (CCI), and the area under the curve (AUC) of the receiver operator characteristic (ROC) plots. The best model predicted presence/absence with a high performance (k= 0.66, CCI= 87% and AUC= 0.85); the prediction of density was moderate (CCI = 62%, AUC=0.71 and k= 0.43). The fundamental variables describing the presence/absence were; solar radiation (the highest contribution was observed between 2000 and 4200 WH/m2), drainage area (with the strongest influence between 3000 and 5.000 km2), and the proportion of exotic fish species (with relevant contribution between 50 and 100%). In the density model, the most important variables were the coefficient of variation of mean annual flows (relative importance of 50.5%) and the proportion of exotic fish species (24.4%). The models provide important information about the relation of L. guiraonis with biotic and abiotic variables, this new knowledge can help develop future studies and management plans for the conservation of this species in the Júcar River Basin District and, potentially, for the conservation of other endemic fish species of Barbus and Luciobarbus in Mediterranean rivers.

Dietary and spatial overlap between stream populations of a native and two introduced fish species in New Zealand

1991 ◽  
Vol 42 (4) ◽  
pp. 423 ◽  
Author(s):  
GJ Glova ◽  
PM Sagar
Keyword(s):  
New Zealand ◽  
Fish Species ◽  
Salmo Trutta ◽  
Water Velocity ◽  
Native Fish ◽  
Introduced Fish ◽  
Exotic Fish ◽  
Inlet Stream ◽  
Water Depths ◽  
Benthic Prey

Benthic and drifting invertebrates as well as fish were sampled in a lake-inlet stream over a 24-h period in summer in order to investigate interactions for food and space between a native fish species (Galaxias brevipinnis, Galaxiidae) and juveniles of two exotic fish species (Salmo trutta and Oncorhynchus mykiss, Salmonidae) in New Zealand. Galaxias brevipinnis fed almost exclusively at night on the benthos, whereas both trout species fed mostly during the day on drifting and benthic prey. Larvae of Deleatidium (Ephemeroptera), Hydrobiosis and Oxyethira (Trichoptera), and Austro-simulium and Chironomidae (Diptera) were the major prey in the diets of all three fish species. Small prey made up a greater proportion of the diet of G. brevipinnis than for either trout species. All three species of fish were found primarily in riffles and runs in water depths of 0.1-0.3 rn, with G. brevipinnis frequently being in faster-flowing areas (water velocity 0.8-1.1 m s-1) than was either trout species (water velocity 0.4-0.7 rn s-1). These differences in pattern of die1 feeding and micro- habitat use no doubt lessen the interaction between the galaxiid and salrnonid fish species.

scholarly journals Larval Gnathostomes and Zoonotic Trematode Metacercariae in Fish from a Local Market in Yangon City, Myanmar

2020 ◽  
Vol 58 (6) ◽  
pp. 701-707
Author(s):  
Jong-Yil Chai ◽  
Bong-Kwang Jung ◽  
Keon Hoon Lee ◽  
Jin-Youp Ryu ◽  
Hyeon-Seung Kim ◽  
...  
Keyword(s):  
Fish Species ◽  
Opisthorchis Viverrini ◽  
Trematode Species ◽  
Local Market ◽  
Infection Status ◽  
Digestion Method ◽  
Anabas Testudineus ◽  
Mean Intensity ◽  
Artificial Digestion ◽  
Channa Striata

A survey was performed to investigate the infection status of zoonotic helminth larvae in fish from a local market of North Dagon District in Yangon City, Myanmar. A total of 486 fish in 13 species were collected 8 times from December 2015 to December 2019. All fish were transported under ice to a laboratory in Korea and examined for helminth larvae using artificial digestion method. Larval gnathostomes and metacercariae of more than 8 zoonotic trematode species, i.e., <i>Opisthorchis viverrini, Haplorchis taichui, H. pumilio, H. yokogawai, Centrocestus</i> spp., <i>Stellantchasmus falcatus, Pygidiopsis cambodiensis</i>, and <i>Procerovum</i> sp., were detected. Larval gnathostomes were found in 58 (16.0%) out of 362 fish of 6 species, with mean intensity of 2.8 per fish infected. Metacercariae of <i>O. viverrini</i> were detected in 10 (2.9%) out of 349 fish of 5 species, with mean intensity of 16.9 per fish infected. Metacercarial prevalences of 4 intestinal flukes, <i>H. taichui, H. pumilio, H. yokogawai,</i> and <i>Centrocestus</i> spp., were 16.8%, 26.0%, 12.5%, and 15.0% in the positive fish species, respectively, and mean metacercarial intensity was 63.3, 26.8, 86.2, and 8.7 per fish infected. Metacercariae of <i>S. falcatus</i> and <i>P. cambodiensis</i> were detected only from the mullet, <i>Chelon macrolepis</i>. Metacercariae of <i>Procerovum</i> sp. were found in <i>Channa striata</i> and <i>Anabas testudineus</i>. Collectively, it was confirmed that the fish were infected with gnathostome larvae and metacercariae of <i>O. viverrini</i> and intestinal flukes in Yangon City, Myanmar.

scholarly journals PERIKANAN TANGKAP DI DANAU MATANO, MAHALONA, DAN TOWUTI, SULAWESI SELATAN

2017 ◽  
Vol 15 (2) ◽  
pp. 123
Author(s):  
Samuel Samuel ◽  
Husnah Husnah ◽  
Safran Makmur
Keyword(s):  
Fish Species ◽  
Cyprinus Carpio ◽  
Survey Methods ◽  
Exotic Fish ◽  
Lake Ecosystems ◽  
Lake Matano ◽  
Endemic Fish ◽  
Lake Towuti ◽  
Research Show ◽  
Cyprinus Carpio Fish

Suatu penelitian untuk mengetahui aspek perikanan tangkap di Danau Matano, Mahalona, dan Towuti telah dilakukan dari bulan Mei Desember 2005. Danau Matano, Mahalona, dan Towuti merupakan contoh dari ekosistem danau tektonik yang menampung jenis ikan endemik dan juga jenis ikan introduksi (tilapia dan ikan mas, Cyprinus carpio). Penelitian ini dilakukan dengan metode survei dengan cara mencari lokasi-lokasi ada aktivitas penangkapan ikan, wawancara dengan nelayan, dan bekerjasama dengan enumerator dalam mengumpulkan data penelitian. Hasil penelitian telah mendapatkan 22 jenis ikan endemik dan 6 jenis ikan introduksi yang tertangkap di ketiga danau (Matano, Mahalona, dan Towuti). Danau Matano tertangkap 7 jenis ikan endemik, Mahalona 8 jenis, dan Danau Towuti tertangkap 15 jenis. Jaring dan bagan merupakan alat tangkap yang dominan digunakan oleh nelayan untuk menangkap ikan endemik seperti ikan buttini (Glossogobius sp.) dan pangkilan (Telmatherina sp. dan Paratherina sp.). Hasil tangkapan ikan di Danau Towuti 5,7 kg per ha per tahun, Danau Mahalona 1,8 kg per ha per tahun, dan Danau Matano 1,2 kg per ha per tahun. Untuk melestarikan ikan-ikan endemik perlu ada pengelolaan dan pengaturan waktu dan lokasi penangkapan yang baik. A research in order to identify the capture fishery at Lakes: Matano, Mahalona, and Towuti was conducted from May to December 2005. Lakes Matano, Mahalona, and Towuti are examples of the representative tectonic lake ecosystems housing the endemic and some exotics (tilapia and carp, Cyprinus carpio) fish species. The survey methods were used in this reseacrh by hunting the location of fishing activities, interview with fishermen and partnership with enumerator in collecting research data. Results of the research show that 23 endemic fish species and 6 introduced per exotic fish species were caught in three research lakes. From 22 endemic fishes, 7 fish species were caught at Lake Matano, 8 fish species at Lake Mahalona, and 15 fish species were caught at Lake Towuti respectively. Gillnets and bagan were dominant fishing gears to catch the endemic fishes such as buttini (Glossogobius sp.) and pangkilan (Telmatherina sp. and Paratherina sp.). The productivity of the fisheries were 5.7 kg per ha per year for Lake Towuti, 1.8 kg per ha per year (Lake Mahalona), and 1.2 kg per ha per year (Lake Matano) respectively. To sustain endemic fishes is needed a better management eg. domesticating and regulating time and location of capture endemic fish species.

Cryopreservation of sperm of an indigenous endangered fish species Nandus nandus (Hamilton, 1822) for ex-situ conservation

Cryobiology ◽  
2012 ◽  
Vol 65 (3) ◽  
pp. 202-209 ◽  
Author(s):  
M. Rafiqul Islam Sarder ◽  
M.F. Monowar Sarker ◽  
Shankar K. Saha
Keyword(s):  
Fish Species ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
Endangered Fish

scholarly journals Comparative performances of exotic and indigenous fish species with commercial culture systems of Mymensingh district in Bangladesh

2019 ◽  
Vol 29 (4) ◽  
pp. 371-379
Author(s):  
S Salam ◽  
KMS Rana ◽  
MA Salam
Keyword(s):  
Fish Species ◽  
Culture System ◽  
Silver Carp ◽  
Catla Catla ◽  
Selling Price ◽  
Exotic Fish ◽  
Anabas Testudineus ◽  
Gross Income ◽  
Indigenous Fish Species ◽  
Exotic Fish Species

An experiment was conducted to assess the relative performances of indigenous and exotic fish species under commercial culture system at Muktagacha and Trishal upazila in Mymensingh district. Six exotic fish species namely Thai koi (Anabas testudineus), Thai pangus (Pangusius hypophthalmus), Silver carp (Hypophthalmichthys molitrix), Vietnam koi (Anabas testudineus), Big head carp (Aristichthys nobilis) and Tilapia (Oreochromis niloticus) and nine indigenous fish species namely Rui (Labeo rohita), Shing (Heteropneustes fossilis), Sar punti (Puntius sarana), Gulsha (Mystus bleekeri), Koi (Anabas testudineus), Mrigal (Cirrhinus cirrhosus), Kalibaush (Labeo calbasu), Catla (Catla catla) and Magur (Clarias batrachus) were selected in Muktagacha while exotic Big head carp and indigenous Gulsha, Koi and Magur were lacking for observation in Trishal upazila. Results revealed that the production of exotic Thai pangus was comparatively higher in Muktagacha (5810.81 kg/acre) than Trishal (4521.74 kg/acre) upazila. In contrast, silver carp and tilapia production were 3063.04 kg/acre and 1008.26 kg/acre in Trishal, respectively which were higher than Muktagacha. Average selling price of tilapia, Vietnam koi and silver carp was also comparatively higher in Muktagacha than Trishal upazila. Similar observation was also obtained in respect of indigenous fish species. On the other hand, average selling price of shing was found highest (BDT. 333.33 per kg) in Muktagacha than Trishal while other fish species were sold at similar price. Gross income was also significantly higher with the exotic fishes in Muktagacha accounted for BDT. 858,716/acre/cycle while the highest gross income obtained with the indigenous fishes was in Trishal upazila, valued BDT. 121,5987/acre/cycle. It can be concluded that, both indigenous and exotic fish farming has spread in the area because of easy to adopt culture system, availability of fry, feed, good profit and high demand in the market. Some limitations of the ongoing practices have been identified that need to be addressed properly by the concerned authority. Progressive Agriculture 29 (4): 371-379, 2018

Ex-situ conservation of medicinal plant genetic resources managed by national agrobiodiversity center of Korea

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
JS Sung ◽  
CW Jeong ◽  
YY Lee ◽  
HS Lee ◽  
YA Jeon ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
Genetic Resources ◽  
Ex Situ Conservation ◽  
Plant Genetic Resources ◽  
Ex Situ

The Nagoya Protocol and the Role of Research Resource Centers as Ex-situ Conservation Institutes

2018 ◽  
Vol 26 (2) ◽  
pp. 47-69
Author(s):  
Hyeyeon Im ◽  
Minkyung Jung ◽  
Kyungsook Ahn ◽  
Ki Hyun Ryu
Keyword(s):  
Ex Situ Conservation ◽  
Ex Situ ◽  
Nagoya Protocol

Ex Situ Conservation of Rare Medicinal Plants in the Botanical Garden (Institute) of Academy of Sciences of Moldova

2013 ◽  
Vol 40 (1) ◽  
pp. 43-48
Author(s):  
Nina Ciocârlan
Keyword(s):  
Native Species ◽  
Ex Situ Conservation ◽  
Botanical Garden ◽  
Ex Situ ◽  
Aromatic Plants ◽  
Medicinal And Aromatic Plants ◽  
Field Collection ◽  
Ecological Flexibility ◽  
Cultivation Techniques ◽  
Academy Of Sciences

Abstract This work refers to the native species of genus Astragalus L. (A. dasyanthus, A. ponticus), Adonis L. (A. vernalis, A. wolgensis) and Digitalis L. (D. lanata, D. grandiflora). The plants are cultivated in the Botanical Garden of Moldova in the field collection of the medicinal and aromatic plants. Investigation includes propagation aspects, research into cultivation techniques and conservation measures. The biological particularities and the phenologic rhythm are also registered. The obtained data shows the ecological flexibility of species and the possibility of preserving them in culture.

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