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Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan

depik
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Published by Universitas Syiah Kuala

ISSN : 20897790 EISSN : 25026194 DOI : 10.13170/depik

Core Subject : Science, Education, Engineering,

Earth & Planetary Sciences Education Engineering

Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan is a peer review international journal, this journal is publishing high-quality articles in aquatic sciences and fisheries in general. The aim of the journal is to publish and disseminate the current or new findings of the research, and give a significant contribution to the development of fisheries and aquatic sciences in several topics, but not limited to: Fisheries (Aquaculture, Capture Fisheries, Fish Processing) Aquatic Ecology (Freshwater, Marine, and Brackishwater) Aquatic Biology (Fish, Mollusk, Crustacean, Plankton, Coral reefs) Oceanography

Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Oseanografi

Articles 30 Documents

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Search results for , issue "Vol 12, No 1 (2023): APRIL 2023" : 30 Documents clear

The correlation between environmental parameters and the abundance of crabs in the mangrove ecosystem of Gemuruh River, Koto XI Tarusan District, West Sumatera Dwieke Putri Wulandari; Eni Kamal; Suparno Suparno
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Crabs are a member of the mangrove ecosystem fauna and get their food source from litter. They turn the litter into detritus and maintain ecological balance. In addition, environmental conditions in the mangrove ecosystem also play an essential role in the abundance of brachyuran crabs. Influential environmental factors include temperature, salinity, water pH, and substrate type. This study aims to determine the effect of environment types on the presence of brachyuran crabs from families Ocypodidae and Sesarmidae in the mangrove ecosystem in Gemuruh River, Koto XI Tarusan District. The method used is a descriptive method, which is a direct observation approach to crabs and environmental conditions in the mangrove ecosystem area. Collection of crab samples and environmental condition data used a purposive sampling technique. The result shows six species distributed in the area, namely Uca bellator, U. rosea, Perisesarma eumolpe, Sarmatium germaini, P. plicatum, and Sesarma curoense. The distribution of species crabs in vegetation mangroves is Rhizophora stylosa, R. apiculata, R. mucronata, Sonneratia alba, and Nypa fruticans. The environmental parameters (temperature, salinity, water pH) at each station were within the relatively good category for the growth of the Ocypodidae and Sesarmidae crab families. Based on the analysis results of the relationship between the abundance of brachyuran crabs and environmental parameters (temperature, salinity, water pH), it can be seen that there is no significant correlation between temperature, salinity, and water pH with the abundance of Ocypodidae and Sesarmidae brachyuran crabs families in the mangrove ecosystem of Gemuruh River. The factor with a dominant influence on the abundance of these crabs is the substrate type.Keywords:AbundanceKoto XI TarusanMangroveOcypodidaeSesarmidae

Effect of water acidity on the growth performance, survival, and hematology condition of the barramundi fish Lates calcarifer (Bloch, 1790) fingerling Mustika Marzah Fitriana; Nur Fadli; Zainal Abidin Muchlisin
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Global warming is caused by increased carbon emissions into the atmosphere resulting from burning oil, gas, and other fossil fuels. Subsequently, the carbon gas enters the waters through a diffusion process facilitated by the concentration of gases in the air, which is higher than in the waters. The outcome of this process is a decrease in water acidity, leading to a lower pH, which can disrupt the life of aquatic biotas. Therefore, this study aims to analyze the effect of decreasing of pH on the growth, survival, and physiological conditions of barramundi (Lates calcarifer). To achieve this objective, seven pH levels were tested, namely pH of 7.24 (control), pH 6.74, pH 6.24, pH 5.74, pH 5.24, pH 4.74, and pH 4.24. Every treatment was performed with four replications, and the fish was reared for 30 days in the respective tested pH. The reared madia is sea water with a salinity of 22 ppt. The experiment was conducted in the laboratory of fish breeding Faculty of Marine and Fisheries, Universitas Syiah. The results showed that a decreasing in pH had a significant effect on the growth performance and hematological condition of barramundi (P0.05), but its had no significant effect on survival (P0.05). The experimental fish could survive at pH 4.24, but their growth and hematological conditions were disrupted below 6.24. Therefore, it was concluded that the lower threshold value of pH for barramundi was 6.24.Keywords:Global warmingOcean aciditypHFisheries productionPhysiological disturbance

Biological aspects of squid (Loligo edulis) in the waters of Eastern North Sumatra, Indonesia Dadan Zulkifli; Ratna Suharti; Yuni Fast Track Anjeli Sihombing; Meuthia Aula Jabbar; Siti Mira Rahayu; Aditya Bramana; Hendra Irawan; Deni Aulia
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Squid is one of the non-fish resources that have economic value and is a target species in demersal fisheries activities with squid fishing gear and stick-held deep net. This research aims to determine the biological aspects of squid (Loligo edulis) such as length frequency distribution, length-weight relationship, sex ratio, gonadal maturity level, gonadal maturity index, size at first caught, and size at first maturity of the gonads. The method used in this research was a descriptive survey. The sample collection method used systematic random sampling and purposive sampling techniques. This observation was carried out on March 7 to July 30, 2022, at the Belawan Ocean Fishing Port and Tanjung Balai Port. The results showed that the average length distribution of squid was 17.73 cm. The relationship between the length and weight of squid is negative allometric. The sex ratio is 1:1.05. The negative allometric growth pattern is dominated by Gonadal Maturity Level (GML) I and GML II. The highest GML value for male squid was 2.06% at GML III, and the highest GML value for female squid was 1.92% at GML III. The average size of the caught squid length (Lc) is 10.42 cm. The size of the first gonad maturity (Lc) was 13.32 cm.Keywords:SquidBiological aspectsFisheries aspectManagement effort

Feasibility of using fish visceral trash in a polyculture system for enhancing the growth performances of giant gourami (Osphronemus gouramy) and redclaw crayfish (Cherax quadricarinatus) Agus Putra AS; Afrah Junita; Muhammad Jamil
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Giant gourami and redclaw crayfish are among popular freshwater organisms with significant potential for aquaculture due to their ease of cultivation, resistance to diseases, and high economic value. Therefore, this study aimed to evaluate the feasibility of using fish visceral trash (FVT) in artificial diets to enhance the growth performances of giant gourami (Osphronemus gouramy) and redclaw crayfish (Cherax quadricarinatus) in a polyculture system. Giant gourami juveniles (3.62±0.86 cm and 3.74±1.15 g) and redclaw crayfish (3.05±0.35 cm and 6.41±0.29 g) were divided into four groups and cultured in 100 L aquarium. Each group was fed twice daily with diets containing 0%, 10%, 20%, and 30% FVT/kg diet. Furthermore, growth performances were assessed in all samples at 14 days intervals over a period of eight weeks. The results showed that diets prepared with 30% FVT significantly affected the growth rate of giant gourami juveniles, while those comprising 20% enhanced the growth of redclaw crayfish. Total length, body weight, specific growth rate, and weight gain significantly increased in samples fed with the experimental compounded diets. Based on the observations, it is suggested that using FVT compounded diets tends to improve growth performances in a polyculture system.Keywords:Giant gouramiGrowth performanceRedclaw crayfishPolycultureTrash fish

Evaluation feasibility and ecological gap in marine conservation area of Southeast Sulawesi Province Zulhamsyah Imran; Cahyo Wijayanto; Fredinan Yulianda
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Aquatic Tourism Park (ATP) of the Southeast Sulawesi Province has significant contribution to achieve the total targeted of 30 million of Marine Protected Areas (MPA) in Indonesia. The conservation area is located in 3 coastal districts of Konawe, South Konawe, and Kendari City Districts. The time-consuming process of legalizing the conservation area has driven the need to re-evaluate the ecological conditions from 2012 to 2020. The objective of this study is to this aims to determine the status, gaps and ecological feasibility of conservation areas in the Southeast Sulawesi region. One of the noticeable gaps is the change of ecological conditions in the reservation area. The gap could be identified by comparing ecological conditions before and after the area was reserved for a conservation area. Ecosystem suitability was measured by using ecological criteria, such as number of protected fish species, mangrove density, seagrass coverage, coral coverage, and naturalness. The score of suitability assessment was 31, which showed that the reserved location was suitable for a Marine Conservation Area. However, gap analysis results showed 10% decline in coral coverage and 17% decrease in seagrass coverage, while mangrove density decreased as much as 102 trees/ha during that period. Evaluation on the ecosystem condition was conducted by applying suitability analysis of the modified E-KKP3K dan Sambah et al. (2020) methods, resulting a status of suitable or conservation area allocation (score 31). Criteria used were chosen based on its contribution in facilitating important ecological processes and as ecosystem buffer system in the area. This study will give the implementation on MPA management optimalisation and it can be contributed on fisheries management.Keywords:Conservation areaFeasibility areaGapSoutheast Sulawesi

Literature study: the community perception of rowing venue development in women's forest ecosystem, Youtefa Bay, Jayapura City, Papua Vience Tebay; Ilham Ilham
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Women's forest in the local language called “Tonotwiyat” is a private space for women. Women's forests are not only limited to controlling disasters and neutralizing air pollution but are like mothers who provide life for local communities. This article is a literature study by conducting text and discourse analysis on socio-cultural events whose subjects are library materials. The results of this study indicate that the construction of the rowing venue has contributed to the damage to the women's forest ecosystem in Jayapura City. The tradition of protecting women's forests as a source of local food and as a place for character education for women is now starting to be eroded as a result of environmental pollution and land conversion. Rehabilitation is carried out as an effort by the government to preserve the damage to the mangrove ecosystem that has been affected by development. As a recommendation In addition to carrying out rehabilitation and revegetation, in the future it is necessary to expand by planting mangrove seedlings by colonizing new areas or extensification. Including the importance of regulations governing the protection and management of women's forests based on local wisdom adopted by the local community.Keywords:Women's forestMangrovesDevelopmentRowing venue

The abundance of Microcystis sp. on intensive shrimp ponds Hayati Soeprapto; Heri Ariadi; Ubad Badrudin; Petrus H.T Soedibya
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Microcytis sp is plankton species that is detrimental in shrimp pond ecosystems. The purpose of this study was to detect the abundance of plankton and the presence of Microcystis sp. in the waters of vaname shrimp (L. vannamei) aquaculture ponds. The research method used is descriptive quantitative and qualitative with added analysis of dynamic modeling systems. The results showed that pond water quality conditions were still good enough for shrimp farming activities with details of dissolved oxygen 4.01-6.17 mg/L, pH 7.7-7.9, salinity 20‰, temperature 27.050-28.250C, nitrate 0.01-0.15 mg/L, phosphate 0.05-0.20 mg/L, brightness 25-35 cm. For the classification of plankton found among them are from the Bacillariophyceae class, there are the genera Skeletonema sp., Cyclotella sp., Coscinodiscus sp., and Amphipora sp., from the Chlorophyceae class, there are the genera Chlorella sp., Oocystis sp., and Clamydomonas sp., from the Cyanophyceae class. the genus Oscillatoria sp., Microcystis sp., and Anabaenopsis sp. The plankton diversity index (H') was obtained between 0.01-0.33 and the uniformity index (E) was obtained between 0.10-0.50, meaning that the condition of the pond waters is still quite good and there are minimal indications of pollution. The abundance of Microcystis sp. obtained between 0.2x104-0.6x104 cell/ml. from the results of dynamic modeling analysis it is shown that the abundance of Microcystis sp. in pond waters is influenced by the value of the productivity level of the waters and the process of grazing organisms. The results of this study can be concluded that the plankton abundance rate found in ponds ranges from 0.4x104-1.9x104 cell/ml which consists of 10 genera and 3 classes of plankton. Then Microcystis sp. its presence was found in 3 ponds with abundance rate ranging from 0.2x104-0.6x104 cell/ml.Keywords:CultivationGenusGrazingModelWaters

Identification of species, intensity, and prevalence of Vannamei shrimp (Litopenaeus vannamei) ectoparasites in traditional ponds North Gorontalo Juliana Juliana; Yuniarti Koniyo; Ike Nursyafitri Dangkua; Indika Abd. Rahman
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Vannamei shrimp (Litopenaeus vannamei) production continues to decline due to parasitic attacks on ponds in North Gorontalo Regency. Ectoparasites are one of the factors that can cause failure in the cultivation of vannamei shrimp. This study aims to determine the type of ectoparasites, intensity, and prevalence of vannamei shrimp cultured in traditional ponds in the North Gorontalo Regency. The sampling of the research was carried out at five research stations. The sampling of this research was taken at random in 5 plots of ponds and the total number of shrimps as many as 150 tails. At each station, samples were taken of 30 vannamei shrimp. Sampling using fishing gear in the form of nets. The observed samples were 8-10 cm in size alive. Observations of ectoparasites were carried out microscopically using a Zeis Binocular microscope with 10x magnification. Data analysis used descriptive analysis of the types of ectoparasites, intensity, and, the prevalence of ectoparasites found. The results of the study found four types of ectoparasites found in vannamei shrimp, namely Zoothanium sp., Epistylis sp., Carchesium sp., and Vorticella sp. The intensity of ectoparasite attack on shrimp was categorized as low to moderate infection, namely 4-7 individuals/shrimp. The prevalence rate is 80-100% with the category of moderate to very severe infection.Keywords:EctoparasitesPrevalenceIntensityVannamei shrimp

Diversity and distribution of fish in the Lokop river, Leuser Ecosystem Area, Indonesia Furqan Maghfiriadi; Firdus Firdus; M. Ali Sarong; Ilham Zulfahmi; Agung Setia Batubara
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Lokop is one of the villages in Serbajadi District, East Aceh Regency, Aceh Province. The village has a watershed named the river Lokop. This river is located in the Leuser Ecosystem Area which is inhabited by various aquatic biota, especially fish, with the level of diversity and distribution patterns that need to be studied and analyzed conoftened. This study used the purposive sampling method, with the parameters being the level of diversity and distribution patterns of fish in the Lokop river. Data collection was carried out at 5 observation stations based on the typology of river habitat, each station was divided into three substations representing parts of the basin, river bank and river basin approximately 50 m apart. Fish sampling is carried out at each station using a plot of 10 x 10 m2. The number of plots at each station is 9 plots with a total of 45 plots. The results showed that the diversity index (H') value of fish in the Lokop river was 2.39 in the moderate category and the distribution pattern of fish in the Lokop river has a uniform pattern and clusters. Out of a total of 17 species obtained, 8 species (47%) were clustred, 8 species (47%) were uniformly distributed and 1 species (6%) could not be analyzed because only one individual was found.Keywords:FishRiverDiversityDistribution

Additional of EM4 and molasses in feeds on the growth and survival rate of snakehead (Channa striata) Cut Dara Dewi; Usman Maulana; Sayyid Afdhal El Rahimi; Ismarica Ismarica
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

This study aims to determine the effect of giving EM4 probiotics on the growth and survival rate of snakehead (Channa striata). This research was carried out at the Fish Hatchery Laboratory, Faculty of Marine and Fisheries, Universitas Syiah Kuala. This study was conducted using a Complete Randomized Design (CRD) method with 4 treatments used, namely A (control), B (EM4 6 ml/kg of feed), C (EM4 8 ml/kg of feed), and D (EM4 10 ml/kg of feed). The results showed that the addition of 10 ml/kg of feed of EM4 probiotic resulted in an absolute length growth of 1.60±0.17 cm, an absolute weight growth of 1.85±0.18 gram, a specific growth rate of 1.97±0.10 % per day, a feed conversion ratio of 1.56±0.03, feed efficiency 64.19±1.41 % and survival rate 97.78±3.85 %. The results of this study can be concluded that the addition of probiotic EM4 10 ml/kg of feed can increase the growth and survival rate of snakehead (Channa striata).Keywords:Channa striataEM4Commercial feedGrowthSurvival rate

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Ichsan Setiawan

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Home Page

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Editorial Team

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Contact Name Ichsan Setiawan

Contact Email ichsansetiawan@usk.ac.id

Phone +6285220189228

Journal Mail Official depik@usk.ac.id

Editorial Address Faculty of Marine and Fisheries Universitas Syiah Kuala Jalan Meureubo No. 1, Kopelma Darussalam Banda Aceh, 23111, Indonesia

Location Kab. aceh besar, Aceh INDONESIA

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Contact Name
Ichsan Setiawan

Contact Email
ichsansetiawan@usk.ac.id

Phone
+6285220189228

Journal Mail Official
depik@usk.ac.id

Editorial Address
Faculty of Marine and Fisheries Universitas Syiah Kuala Jalan Meureubo No. 1, Kopelma Darussalam Banda Aceh, 23111, Indonesia

Location
Kab. aceh besar,

Aceh

INDONESIA