Sammy N. J. Longdong
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Journal : e-Journal BUDIDAYA PERAIRAN

Konsentrasi merkuri ikan capungan Cardinalfish (Sphaeramia orbicularis) di area budidaya perairan Pintu Kota Kecamatan Lembeh Utara, Bitung Sabono, Mateda M.; Undap, Suzanne L.; Longdong, Sammy N. J.
e-Journal BUDIDAYA PERAIRAN Vol 8, No 1 (2020)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.8.1.2020.27539

Abstract

The aims of this research were to determine the total mercury concentration of Cardinalfish (Sphaeramia Orbicularis) and the waters in aquaculture area of Pintu Kota, North Lembeh, Bitung, and its water quality paramaters (temperature, salinity, pH). The research was conducted from June to Nopember 2019 in the cultivation area of tiger grouper fish in which the fish and seawater were sampled and analyzed in the laboratory. Determination stations were done by purposive sampling which refers to the physiographic lacation wherever possible in order to represent or describe these waters. Station 1 represented the sea transpartion port of Lembeh Island (no cultivation), Station 2 where the cultivation A, Station 3 where the cultivation B. The results showed the concentration  of the mercury obtained at Station 1 ranged from 0.00756 -0.00789 ppm, Station 2 ranged 0.00394-0.00418 ppm, and Station 3 ranges from 0.00506-0.00564 ppm. Whereas the concentration of mercury in seawaters samples were detected at Station 1, 2, and 3 were < 0.003 ppm. The temperature ranged between 26.2 – 26.7°C, pH 7 and salinity 30-33 ppt. In general, the existence of the phisycal chemical parameters of water was in good measurement after comparing with the water quality standard of Kep. MENLH No. 51/2004. Mercury concentrations in all samples in Pintu Kota waters of North Lembeh as compared to WHO/FDA standard are still in good condition but have been already contaminated by mercury.
PKM Kelompok Pembudidaya Ikan Di Kelurahan Tendeki Kecamatan Matuari Kota Bitung Provinsi Sulawesi Utara Mudeng, Joppy D.; Longdong, Sammy N. J.
e-Journal BUDIDAYA PERAIRAN Vol 7, No 2 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.7.2.2019.25990

Abstract

"Gemusis" fish cultivation group is one of the aquaculture business groups that exist in Tendeki Village, Matuari District, Bitung City, North Sulawesi Province. The width of  pond owned is around 3 ha with an average production of 2 tons per year. The main problem in this group is the difficulty in obtaining superior seeds, expensive feed prices and often the fish that are kept stricken with disease, resulting in less production and even crop failure. Alternative solutions to problems in partner problems are accompanied by two approaches, namely the classical and individual approaches. The classical approach is carried out when delivering the material. An individual approach is taken at the time of practice. Lectures in class in the form of delivery of how to make tilapia seed with sex reversal methods for the maintenance of monosex, making low-quality quality feed made from local raw materials and producing maggot as natural food, as well as how to increase fish immunity by giving immunostimulants to fish feed. Demonstration and practice with techniques for making cheap feed ingredients made from local raw materials. In order for the fish cultivation activities carried out by the partners according to the activity plan, monitoring and assistance will be carried out after the lecture and practice activities. The results obtained showed the group are able to cultivate fish with monosex system, produce feed using local raw materials, maggot cultivation as a natural feed, and can treat fish diseases using mmunostimulant.
Uji penggunaan pelepah pisang dan spon pada pengemasan bibit rumput laut Kappahycus alvarezii dalam mencegah ice-ice Datangmanis, Adieng A. R.; Kreckhoff, Reni L.; Longdong, Sammy N. J.
e-Journal BUDIDAYA PERAIRAN Vol 8, No 2 (2020)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.8.2.2020.29980

Abstract

This search aimed to determine the shelf life of seaweed seedlings that are packaged using banana and sponge fronds in Styrofoam, determine the best seaweed packaging media in preventing damage or disease when seedlings are planted. The study was conducted for 5 weeks, from January to February 2020. Observation of seaweed seedlings was conducted at the Laboratory of Fish Health, Environment and Toxicology, Faculty of Fisheries and Marine Sciences and planting tests were carried out in Arakan Village, Tatapaan District. South Minahasa Regency.The research method was carried out in the form of: packing Kappaphycus alvarezii seaweed, observing seaweed seeds and planting test. The experiment was designed according to a factorial completely randomized 3 x 3 design so that there were two factors tested in this experiment, namely the packaging medium factor and the shelf life. The packaging medium factor (A), consists of the level ie, (a1) control / without medium, (a2) banana fronds, (a3) sponge; while the shelf life factor (B), consists of three levels namely, (b1) 24 hours, (b2) 36 hours and (b3) 48 hours with three treatments and three replications so that the total number is 27 units of experiment with the number of seeds needed as much as 108 kg. The treatments taken are A: control, B: Packaging seaweed seeds with the addition of banana midrib, C: Packaging seaweed seeds with the addition of a sponge. The data obtained were analyzed ANOVA statistics for factorial RAL using the JMP (SAS-institute) statistical program. The results of the analysis of the variance showed that differences in treatment (the combination between the storage medium and the shelf life) had a very significant effect on differences in the texture and color of seaweed ("P" <0.0001). However, the effect of the storage medium factor on the texture of seaweed did not change significantly at the time of the change in the shelf life factor level ("P" = 0.1664).
Efisiensi usaha akuakultur sistem mina padi kolam dalam di Kabupaten Minahasa Tenggara Toar, Debby; Mudeng, Joppy D.; Watung, Juliaan Ch.; Longdong, Sammy N. J.; Kusen, Diane J.; Wantasen, Adnan S.
e-Journal BUDIDAYA PERAIRAN Vol 9, No 2 (2021)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.9.2.2021.34845

Abstract

This study aimed to evaluate the efficiency of the aquaculture system of the deep water rice field aquaculture system in Southeast Minahasa Regency. The method used was survey method with the respondents were all cultivators who carry out the deep water rice field aquaculture system. The data collected included primary and secondary data, with data collection techniques of observation, interviews and literature study. Data analysis was done by combining qualitative and quantitative analysis. Quantitative data analysis carried out were revenue, income and efficiency and business feasibility. The results showed that the production of deep water rice field aquaculture system in Southeast Minahasa Regency for fish was 24,700 kg and rice 69,300 kg. The cost incurred was Rp. 499,392,000, - with a net profit of Rp. 487,707,998,-. The efficiency of deep water rice field aquaculture system in Southeast Minahasa Regency was 1.90 which means this business was said to be efficient, while the business feasibility value was 0.90 which means to continue deep water rice field aquaculture system business was needed to be considered
¬Kajian kelayakan lokasi budidaya sidat (Anguilla spp.) di Perairan Danau Tondano, Provinsi Sulawesi Utara Parenta, Villy D.; Pangemanan, Novie P. L.; Longdong, Sammy N. J.; Kusen, Diane J.; Salindeho, Indra R. N.; Tumembouw, Sipriana S.
e-Journal BUDIDAYA PERAIRAN Vol 9, No 2 (2021)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.9.2.2021.34850

Abstract

The objective of this research was to determine feasibility ility on eel fish (Anguilla spp.) culture locations in Tondano Lake, North Sulawesi Province in terms of water quality, both physical and chemical parameters of the waters. Determination of the sampling point is placed at three predetermined points, station I located at Eris Village, Station 2 located at Paleloan Village and Station 3 located at Paslaten Village. The results showed that the waters of Lake Tondano have three classes of suitability for the location of eel (Anguilla spp.) culture, that is very suitable (S1), suitable (S2), and not suitable. Station I of Eris Village included in the suitable class (S2), Station II at Paleloan Village is included in the very appropriate very suitable class (S1), while Station III at Paslaten Village included in the class that is not suitable to be used as a location for eel culture in terms of water quality
Pemberian minyak pala (Myristica fragrans) Houttuyn 1774 sebagai bahan anestesi dengan konsentrasi berbeda pada benih lobster air tawar (Cherax quadricarinatus) Von Martens 1868 Mamuko, Nelsi; Mingkid, Winda M.; Watung, Juliaan Ch.; Kreckhoff, Reni L.; Longdong, Sammy N. J.; Manginsela, Fransine B.
e-Journal BUDIDAYA PERAIRAN Vol 10, No 1 (2022)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.10.1.2022.35535

Abstract

This study aimed to examine the best concentration of nutmeg oil for anesthesia of freshwater crayfish (Cherax quadricarinatus) seeds and analyze the length of time to faint, the length of time to faint and the length of time to wake up for the seeds of freshwater crayfish (C. quadricarinatus) . This research was carried out at the Aquaculture Technology Laboratory, Faculty of Fisheries and Marine Sciences, Sam Ratulangi University, Manado. The time of the research was carried out from April 18, 2021 - May 18, 2021. This study used a completely randomized design (CRD) consisting of 5 treatments and 3 replications, thus there were 15 experimental units. Treatment A with a dose of nutmeg oil (0.7 mL), treatment B (1 ml), treatment C (1.3 mL), treatment D (1.6 mL) and treatment E (1.9 mL). Parameters observed during behavioral research, length of time to faint, length of time to faint and length of time to wake up. The results of the study using the ANOVA statistical analysis test and the BNT follow-up test (Least Significant Difference) showed that different doses of nutmeg oil had a very significant effect on the length of time to faint, the length of time to faint and the length of time to wake up. The length of time to pass out the fastest, the longest length of time unconscious and conscious longest duration was obtained in treatment E (1.9 mL).
Pertumbuhan dan kelangsungan hidup ikan nila Oreochromis niloticus salin pada padat penebaran yang berbeda Baring, Vira; Longdong, Sammy N. J.; Ngangi, Edwin L. A.; Sinjal, Hengky J.; Kalesaran, Ockstan J.; Paruntu, Carolus P.
e-Journal BUDIDAYA PERAIRAN Vol 10, No 1 (2022)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.10.1.2022.35757

Abstract

This study aimed to determine the effect stocking density on growth and determine the effect on the survival of saline tilapia. The experiment was conducted at the Aquaculture Technology Laboratory and the time of the study was from February to August 2021. The experiment was designed according to a completely randomized design (CRD) with 4 treatments and 3 replications so that there were 12 experimental units. The factors tested were differences in stocking density of tilapia with treatment A: 10 fish/20 liters, treatment B: 15 fish/20 liters, treatment C: 20 fish/20 liters, and treatment D: 25 fish/20 liters. Growth data and survival rate (%) were analyzed using analysis of variance for RAL, then LSD test (Least Significance Different) was performed. Observations of water quality include temperature, DO, pH, and salinity. The result of the analysis of variance showed that the difference in stocking density had a significant effect on growth, but on the survival rate had an insignificant effect. The results of the BNT test on growth showed that treatment A was not significantly different from treatments B and C, but treatments A, B, and C were significantly different from treatment D. The temperature range during the experimental period was between 29 0C – 30.9 0C, DO ranged from 4.07 ppm – 6.80 ppm, pH between 6.78 – 7.95, and salinity 25 ppt
Pertumbuhan Trepang Holothuria scabra yang dipelihara dalam kurungan dengan substrat berbeda di Perairan Pantai Bahoi Kudato, Vania E.; Sambali, Hariyani; Ngangi, Edwin L. A.; Kusen, Diane J.; Longdong, Sammy N. J.; Rimper, Joice R. T. S. L.
e-Journal BUDIDAYA PERAIRAN Vol 10, No 2 (2022)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.10.2.2022.36088

Abstract

This research was conducted to examine the effect of different substrates on the growth of Sea Cucumber Holothuria scabra reared in cages in Bahoi Coastal waters. This research was conducted from April to June 2021 in Bahoi Coastal Waters, West Likupang, North Minahasa. The method used in this research is the observation method with three treatments: A (sand), B (mud), C (seagrass), and three replications. The cages are made of nets size 100 cm x 100 cm x 50 cm as many as 9 cages. The sea cucumber size data was collected every two weeks. Samples of sea cucumber were taken randomly from each cage, left for ± 10 minutes, photographed, weighed, then recorded. Data collection for water quality is carried out every week during the day at the lowest tide, between 12:00 to 14:00. Water quality parameters were measured using a thermometer, refractometer, and litmus paper. Based on the research results, the average absolute weight growth and daily growth rate of sea cucumber reared with mud substrate showed the best results, that is 0.55 g and 0.72%, while the sand and seagrass substrates showed negative values. The results of ANOVA (analysis of variance) showed that there was no significant difference between absolute growth and daily growth rate of Sea Cucumber H. scabra reared on sand, mud, and seagrass substrates.
Kesesuaian lahan budi daya rumput laut Caulerpa sp. di Perairan Tanjung Kamala, Minahasa Utara Mamonto, Reva E.; Ngangi, Edwin. L. A.; Undap, Suzanne L.; Kreckhoff, Reni L.; Longdong, Sammy N. J.; Monijung, Revol J.; Pangemanan, Novie P. L.
e-Journal BUDIDAYA PERAIRAN Vol. 12 No. 1 (2024): Januari - Juni
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.v12i1.56193

Abstract

Abstract Bahoi Waters is located in West Likupang District, known as a coastal village that has a lot of fishing and marine potential. Utilization of Bahoi waters for seaweed cultivation requires good seawater quality to meet the requirements for cultivation. Water quality is one of the factors that plays an important role in the success of seaweed cultivation. The aim of the research was to determine the suitability of water in Bahoi Village for  land for seaweed (Caulerpa sp.) cultivation. The research used in situ measurements at 3 stations, namely: Station A (Existing Cultivation Location), Station B (Tanjung Kamala Waters), and Station C (Tamperong Island Waters). Data collection was carried out 2 times with 3 repetitions for measurement of water parameters. Measurement time was carried out at 07:00 – 09:00; 12:00-14:00, and 17:00- 19:00. Data was analyzed by comparing physical parameters and chemical parameters at each station with a scoring table and weights in the land suitability matrix. The conformity class determination obtained was: Very Suitable with a value range of 37 – 48 (S1), Suitable 25 – 36 (S2), and Not Suitable 16 – 24 (S3). The scoring value for suitability of water quality parameters at Station A was 46, Station B 47, and Station C 44. In conclusion, all stations are in the Very Suitable class for cultivating Caulerpa sp.  Keywords: Caulerpa sp., water quality, seaweed