Ahmadi Ahmadi

Ahmadi Ahmadi
Lambung Mangkurat University | UNLAM · Faculty of Fishery

Professor

About

52
Publications
19,754
Reads
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176
Citations
Additional affiliations
September 2023 - present
Lambung Mangkurat University
Position
  • Professor
Description
  • Lecturer and Competency Assessor
Education
March 2005 - March 2009
Kagoshima University
Field of study
  • Marine Science

Publications

Publications (52)
Article
Full-text available
This study examined the growth pattern, condition factor (K), length at first capture (Lc50), length at first maturity (Lm50), gonadosomatic index (GSI), and selection factor (SF) of the hard-lipped barb (Osteochilus hasselti CV) in Sungai Batang River, Indonesia. Fish were weekly purchased from local fishermen over a two-month period (April-May 20...
Article
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This study sheds light on the business sustainability of the gillnet fishery for narrow-barred Spanish mackerel (Scomberomorus commerson) and Indo-Pacific mackerel (Scomberomorus guttatus), locally called "Tenggiri" and "Kembung," respectively, undertaken by the Kelompok Usaha Bersama (KUB) Kampung Baru, a collective business group in Muara Kintap,...
Article
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The paper aims to enhance the fishing efficiency and sustainability of Muara Kintap fishers by using data-driven Fishing Area Forecast Maps (FAFM). This study makes significant contributions to the field of fisheries management by demonstrating the effective use of satellite data for local-scale fisheries management, bridging the gap between scient...
Article
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This study analyzed the catch of the ponyfish (Leiognathus equulus) landed at Muara Kintap Fishing Port in South Kalimantan, Indonesia. Local fishermen used various gear types especially bottom trawls, beach seines, drift gillnets, and encircling gillnets within Indonesia's Fisheries Management Area (FMA) 712. While bottom trawls displayed the high...
Article
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The goal of this anthropological investigation is to examine how fishing technology innovation in Banjar Regency relates to local knowledge. Using ethnographic techniques, such as participant observation and semi-structured interviews, this study was carried out over the course of six months, from January 2022 to June 2022. Interviews were conducte...
Article
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The current research aims to provide valuable information on the food habits of snakehead (Channa striata) collected from Danau Bangkau, Indonesia. 220 snakeheads (265-439 mm total length and 207-950 g weight) consisting of 102 males (46%) and 118 females (54%), with the sex ratio of 1:1.2, were directly obtained from local fishermen. This study wa...
Article
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The present study describes the growth pattern, the condition factor, and the gillnet selectivity of Sheatfishes (Kryptopterus lais) from Waters of Sungai Batang, Indonesia. This species is commercially exploited and highly vulnerable to overfishing. Meanwhile, the exploitation rate is greater than the growth rate of the fish. The fish samples were...
Article
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This study describes the growth pattern, condition factor, length at first capture, length at first maturity, and selection factor (SF) of silver rasbora (Rasbora argyrotaenia) in Sungai Batang River, Indonesia. This species is commercially exploited and highly vulnerable to overfishing. The fish samples were purchased periodically once every 2 wk...
Article
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The current research provides valuable information on the sex ratio, gonad maturity level (GML) and gonad somatic index (GSI) of snakehead (Channa striata) collected from Danau Bangkau, Indonesia. 150 individual snakeheads (265-432 mm total length and 264.8-949.6 g weight) were directly bought from local fishermen. This study was conducted from Jul...
Article
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The present study provides the first reference for the growth patterns and relative condition factor of Macrobrachium species from Sungai Batang River, Indonesia. A total of 328 specimens, caught by using wire-stage trap, consisted of 83 males (25%) and 245 females (75%) with the sex ratio of 1:3. Macrobrachium species showed a negative allometric...
Article
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The length-weight relationship and relative condition factor of the Kissing Gourami (Helostoma temminckii) from Sungai Batang River, Indonesia were investigated. The fish were collected using bamboo stage-trap, portable trap and hand liftnet. A total of 120 males and 86 females (55-190 mm total length and 4-109 g weight) were analyzed using SPSS-16...
Article
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CITATIONS 0 READS 12 4 authors, including: Some of the authors of this publication are also working on these related projects: Lambung Mangkurat University View project Abstract The research focused on factors affecting the demand and price elasticity for tittle tuna (Euthynnus affinis) in Kotabaru District, South Kalimantan Province of Indonesia....
Article
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Various programs are implemented in the context of waste management in Tarakan City. The programs that have been implemented are Tabungan Lingkungan (Taling), Gerakan Pungut Sampah (GPS) and Sampah Semesta (Semua Mesti Terlibat). The program does not provide optimal impact based on the amount of waste generation that continues to increase. Waste ge...
Article
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The field research was carried out to analyze institutional marketing and market structure of Climbing perch with bioflock culture system by describing its marketing channel, marketing margin and farmer’s share. Direct obervations were made by visiting fish farmer groups and some local markets in both South and Central Kalimantan Provinces. The res...
Article
Full-text available
The field research was carried out to analyze institutional marketing and market structure of Climbing perch with bioflock culture system by describing its marketing channel, marketing margin and farmer's share. Direct obervations were made by visiting fish farmer groups and some local markets in both South and Central Kalimantan Provinces. The res...
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The present study provides scientific information on the growth pattern and relative condition of shortfin scad, Decapterus macrosoma Bleeker landed in Banjarmasin fishing port, Indonesia. A total of 313 individual scad comprising 178 males and 135 females ranging from 152 to 225 mm total length and from 37 to 110 g weight were investigated. The bo...
Article
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This research was performed to investigate the effectiveness of Dayak onion (Eleutherine palmifolia) extracts used to treat the Sangkuriang catfish (Clarias gariepinus) experimentally infected with bacteria Aeromonas hydrophilla. Observation and measurement were carried out in the three different laboratories. A total of 150 individuals of catfish...
Article
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The present study is aimed at determining the best feeding frequency for Snakehead (Channa striata) fry fed with commercial pellets in term of survival rate, growth performance and body proximate composition. Sampling and measurement were carried out in the Fish Hatchery Center of Sungai Batang located in Kapuas District of Central Kalimantan, Indo...
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This study was aimed at determining the best performance of the addition of Kelakai (Stenochlaena palustris) in commercial pellets as immunostimulant to increase the Snakehead's immune system. Sampling, extraction and measurement were carried out in the Wet Laboratory Faculty of Marine and Fisheries ULM and related institutions. A total of 240 indi...
Article
Full-text available
Snakehead (Channa striata) is widely distributed particularly in Asian and African countries, and has become one of the favorite freshwater fish commodities, which beneficially supports the aquaculture sector and fish processing industries. However, high mortality rate, slow growth and susceptibility to parasite attacks are serious problems. This s...
Article
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The purpose of this research is to discover the patterns of hybridization exact in producing papuyu fish fry which having the superior character, so as to be able to support an increase better productivity fish be. This research hybridization was implemented in UMKM Rawa Sejahtera Amuntai Swamp and Analysis Laboratory at FPK-ULM from Juni to Desemb...
Article
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Barito Kuala District is the largest producer of the featherback (Notopterus chitala) in South Kalimantan Province, Indonesia. It contributes about 42.29% of total regional fisheries production. Recently, supply and demand of raw material for fish chips processing business is completely dependent on the catch from the rivers. Ironically the capture...
Article
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This study aims to find out the comparison of constant use of lights and flashing lights in fishing activities by means of fishing gear done in Martapura swamp waters, Banjar Regency, South Kalimantan Province. From the results obtained in the results obtained that the fish like a constant light more in the likes of fish in comparison to thetype of...
Article
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The field survey was carried out to scrutinize the marketing channels, marketing cost and marketing margin of marine fishes at different intermediaries in Banjarmasin fishing port, Indonesia. About 5-20 tons per vessel per day of marine fishes are being landed in this area. The fish price falls between IDR 3,600 and IDR 57,000 per kg corresponding...
Article
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This study provides scientific evidence on the length-weight relationship, condition factor and growth patterns of the Climbing perch (Anabas testudineus) from Sungai Batang River, Indonesia. The fish were obtained from local fishermen. A total of 156 individuals of A. testudineus consisted of 77 males and 79 females (55-125mm total length and 3-47...
Article
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A series of laboratory experiments were conducted to find out the best performance of different broodstock sizes (14 and 16 cm TL) and type of water plants (Eichhornia crassipes and Hydrilla verticillata) on the basis of breeding process and survival of newly hatched larvae of Climbing perch. The experimental design used was Factorial Randomized Co...
Article
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The effectiveness (E) of the subsidized fuel distribution for fish carrier vessels in Banjarmasin Fishing Port, Indonesia during 2017 and 2018 was investigated. A total of 58 respondents were interviewed using the structured questionnaires. The fuel distribution is locally managed by "Saraba Usaha" Cooperative. The total fuel consumption in 2017 (9...
Article
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The Mystus nigriceps in Sungai Batang River, Indonesia are commercially exploited and they are vulnerable to destructive fishing methods, while morphometric characteristic of the fish is poorly studied. The fish were obtained from local fishermen. A total of 188 individuals of M. nigriceps consisted of 68 males and 120 females (103-195 mm total len...
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Citation Ahmadi (2018) A flume test of a model net with varying wing-end widths to characterize the performance of shrimp trawl in Kotabaru, Indonesia. Journal of Fisheries 6(2): 605-616. Abstract Shrimp trawl net is the prominent fishing gear that beneficially supports shrimp industries in Kotabaru, Indonesia. However, concurrently local fishermen...
Article
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K e y w o r d s: Allometric, condition factor, snakehead, Sungai Batang, weight-length. A b s t r a c t The snakehead (Channa striata) in Sungai Batang River, Indonesia has high commercial value and high pressure on population caused by fishing. Meanwhile, scientific information on morphometric characteristic of snakehead is still lacking. Samples...
Article
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Phototaxis in climbing perch ( Anabas testudineus ) was investigated by subjecting fish to LED light traps (blue, green, yellow, orange, red, white) and control (total 13 traps). The trap was constructed of polyamide (PA) nylon monofilament (31.75 mm mesh size), fastened around two wire ring frames (∅ 490 mm) with a net height of 270 mm. A lamp was...
Article
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The present study provides the first scientific information on the length-weight relationship for Macrobrachium sp. from Barito River, Indonesia. A total of 336 specimens consisted of 161 males (48%) and 175 females (52%) with the sex ratio of 0.92:1 were analysed. This species were collected by using light traps with various intensities and trap d...
Article
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I S S N : 2 4 5 6-6 2 6 8 A B S T R A C T American crayfish (Procambarus clarkii) supports beneficially for aquaculture industry and is also considered as invasive species due to their adverse impacts on the native species and ecosystems. This study aimed at investigating Phototaxis mechanism, length-weight relationship and condition factor of P. c...
Article
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The present study aimed to investigate phototactic response of climbing perch (Anabas testudineus) to various intensities and colors of light emitting diode (LED) underwater lamps. Catches by traps equipped with lamps emitted six different light colors (red, green, yellow, blue, orange, and white) were compared with catches of control traps without...
Article
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Phototaxis of climbing perch (Anabas testudineus Bloch 1792) in a pond was examined by subjecting them to light-emitting diode (LED) light traps and control. A total of 711 specimens (total weight of 8.123 g) consisted of 318 males (3.530 g) and 393 females (4.593 g) were collected from a recapture experiment and used in the present one. Total leng...
Article
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Various fishing gears are being used for harvesting fish and shrimp in Barito River, Indonesia. However, the use of lighted traps is still poorly studied. A set of fishing gears associated with light emitting diode (LED) and incandescent lamps was used as sampling tools. The trials consisted of 113-trap hauls/lamp type using 1-night submersion time...
Article
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The Three-spot gourami and other aquatic species were sampled from Martapura waters by using LED light traps. The trials consisted of 260-trap hauls with a submersion time of 2 h per night. Light traps sampling accounted for 212 specimens assigned to 12 species of 8 families. Trichogaster trichopterus and Pila scutata were frequently found in each...
Article
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Fishing experiments were carried out in Kotabaru of Indonesia to determine catching efficiency of double-twisted and triple-twisted multifilament trammel nets. A total of 10 nets were constructed with the same dimension and inner-outer mesh sizes (40-mm and 80-mm). Trials covered 160-net hauls/type with 1-hour submersion time. The shrimps were comp...
Article
Full-text available
This study aims to find out the comparison of constant use of lights and flashing lights in fishing activities by means of fishing gear done in Martapura swamp waters, Banjar Regency, South Kalimantan Province. From the results obtained in the results obtained that the fish like a constant light more in the likes of fish in comparison to the type o...
Article
Full-text available
This study contributes to the knowledge of traditional fishing gears and the weight-length relationship of fish species from the Bangkau Swamp, Indonesia. Although the use of fishing gears in Bangkau swamp complies with the local regulation but still, some weaknesses have been identified and the options for improvements are being proposed. The leng...
Article
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The catching efficiency of traditional traps: Ayunan and Tamba were tested in Sungai Batang River, South Kalimantan of Indonesia. Trials consisted of 320-trap hauls/type using 1-day submersion time of 24 hr. The baited traps sampling accounted for 82 specimens assigned to 5 species of 5 families. There was a large variability in number of catch bet...
Article
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A set of light traps were used to sample freshwater shrimp and fish from Barito River in Banjarmasin, South Kalimantan. Each of five collapsible traps (same size and shape) and of four different traps (box-shape, wire-stage, bamboo-stage and minnow nets) was assigned with one of LED lamps or incandescent lamps. A total of 231 shrimps and 34 fishes...

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