Depik Jurnal最新文献_第6页

The prevalence and intensity of ectoparasites that infects tilapia (Oreochromis niloticus) in floating net cages 漂浮网箱中感染罗非鱼(Oreochromis niloticus)的外寄生虫的流行率和强度

Depik Jurnal Pub Date : 2022-10-31 DOI: 10.13170/depik.11.3.23310

K. Melanie, S. A. El Rahimi, Amalia Suryani, S. Mellisa, R. Djamani, R. M. Aprilla

{"title":"The prevalence and intensity of ectoparasites that infects tilapia (Oreochromis niloticus) in floating net cages","authors":"K. Melanie, S. A. El Rahimi, Amalia Suryani, S. Mellisa, R. Djamani, R. M. Aprilla","doi":"10.13170/depik.11.3.23310","DOIUrl":"https://doi.org/10.13170/depik.11.3.23310","url":null,"abstract":"Ectoparasites which often attack tilapia include Trichodina sp., Dactylogyrus spp., Gyrodactylus spp., and Epistylis spp. This research aims to determine the types, prevalence, and intensity of ectoparasites found on tilapia (Oreochromis niloticus) in the floating net cages of Batanghari River, Jambi. The research was conducted from February through March 2020. A survey method is carried out through direct sampling at the study site to identify the tilapia ectoparasites. The sampling technique is done using random sampling. Ninety fish were taken for parasite inspection at the Fish Quarantine, Quality Control, and Safety of Fishery Products Class I Jambi Station. The observations found three types of ectoparasites namely Dactylogyrus sp., Epistylis sp., and Oodinium sp. The highest ectoparasite prevalence rate was found from the species Epistylis sp. with a value of 37.7% and an intensity value of 24.7 ind/fish. The prevalence of Dactylogyrus sp. was 26.6% and an intensity value of 1.3 ind/fish. The lowest prevalence value was from Oodinium sp. with a prevalence value of 7.7% and an intensity value of 3.2 ind/fish. The prevalence and intensity values of tilapia ectoparasites based on their locations were 56.6% and 23 ind/fish (station I), 50% and 18.6 ind/fish (station II) and 43.3% and 17.6 ind/fish (station III). The types of ectoparasites found on tilapia in this study were Epistylis sp., Oodinium sp., and Dactilogyrus sp. The parasite with the highest prevalence and intensity found during the survey was Epistylis sp.Keywords:EctoparasitesTilapiaPrevalenceIntensityFloating net cages","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85103306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of fermented product feed to growth performance of fish: A review 发酵产品饲料在鱼类生长性能中的应用综述

Depik Jurnal Pub Date : 2022-10-31 DOI: 10.13170/depik.11.3.26361

M. D. Cahya, Y. Andriani, K. Haetami, Risdiana Risdiana

引用次数: 0

Modification of togok (tidal trap) for reducing bycatch by using BRD vent 利用BRD通风口改造togok(潮汐收集器)以减少副渔获物

Depik Jurnal Pub Date : 2022-10-31 DOI: 10.13170/depik.11.3.26067

N. Nofrizal, Muhamad Mauliddin, R. Jhonnerie

{"title":"Modification of togok (tidal trap) for reducing bycatch by using BRD vent","authors":"N. Nofrizal, Muhamad Mauliddin, R. Jhonnerie","doi":"10.13170/depik.11.3.26067","DOIUrl":"https://doi.org/10.13170/depik.11.3.26067","url":null,"abstract":"One effort to reduce bycatch in togok is to modify the togok by creating a vent to reduce bycatch by BRD. The BRD installed on the togok was a rope BRD vent made of Polyethelene (PE) with a diameter of 2 mm. The rope BRD vent is attached to the top of the cod-end as an escape vent 25 x 50 cm. The escape vent and the stash cod-end are covered with a net with a mesh size of 5 mm. The cover net aims to collect data on fish catches that pass through the rope BRD vent. The percentage of fish that pass through the rope BRD vent can be calculated, and measure the size of the fish caught in the cod-end and covered as an indicator of the effectiveness of the rope BRD vent on togok. This experiment was carried out for 20 days of fishing operation and 40 hauls. The results showed that the catch of togok without rope BRD vent (conventional) and togok with modified rope BRD vent were different (p 0.05), where the catch of conventional togok was 468.34 kg, and the catch of modified togok was 305.235 kg. The fishing catches in the cod end and cover sections the most are bycatch with 51% and 54% of the percentage of the total catch, and the least in the cod end is the discarded catch, which is 21% of the percentage of the total catch and on the cover is the main catch (main catch) with 19% of the percentage of the total catch.The average size of the catch of togok species of fish is there are many immature sizes, and the average size of the catch of togok species of shrimp is there are in maturity size.Keywords:BycatchBycatch excluder device (BRD)DiscardMain catch ","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82308750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trophic status analysis and estimation of fish production in Aneuk Laot Lake aquatic resources management, Sabang City 沙邦市Aneuk Laot湖水产资源管理鱼类生产的营养状况分析与估计

Depik Jurnal Pub Date : 2022-10-31 DOI: 10.13170/depik.11.3.27499

N. Nurfadillah, I. Dewiyanti, S. R. Rahayu, Siswani Sari, I. Karina, H. Hasfiandi

引用次数: 0

The addition of papaya seed flour (Carica papaya) to the growth of ‘Cantang’ hybrid grouper fish (Epinephelus fuscoguttatus >< Epinephelus lanceolatus) 番木瓜籽粉(Carica papaya)对“Cantang”杂交石斑鱼(Epinephelus fuscoguttatus >< Epinephelus lanceolatus)生长的影响

Depik Jurnal Pub Date : 2022-10-31 DOI: 10.13170/depik.11.3.27702

M. B. Syakirin, L. Linayati, T. Mardiana, Sisca Yuniarty, M. Z. Yahya

引用次数: 0

Relationship of ENSO (El Niño – Southernoscillation ) and monsoon index on variability of rainfall and sea surface height in coastal City Semarang, Central Java ENSO (El Niño -南方涛动)与季风指数对中爪哇沿海城市三宝郎降水和海面高度变化的关系

Depik Jurnal Pub Date : 2022-10-31 DOI: 10.13170/depik.11.3.26699

Rosyidah Rosyidah, Kunarso Kunarso, E. Indrayanti

{"title":"Relationship of ENSO (El Niño – Southernoscillation ) and monsoon index on variability of rainfall and sea surface height in coastal City Semarang, Central Java","authors":"Rosyidah Rosyidah, Kunarso Kunarso, E. Indrayanti","doi":"10.13170/depik.11.3.26699","DOIUrl":"https://doi.org/10.13170/depik.11.3.26699","url":null,"abstract":"The city of Semarang is one of the coastal areas in Indonesia that is prone to flooding. Flood events that often occur in the Semarang City area can be triggered by high rainfall. Variations in rainfall and sea level are closely related to global atmospheric circulation such as ENSO and regional atmospheric circulation, Monsoon. This study aims to examine the relationship between ENSO and Monsoon with the distribution of rainfall and sea level in coastal city Semarang from 2012 to 2021. Correlation and composite analysis were used to analyze the relationship and impact of ENSO and Monsoon phenomena on rainfall and sea level. The results showed the strong correlation of the ENSO index (Southern Oscillation Index) to rainfall in the JJA and SON periods. Generally, El Niño (La Niña) has an impact on increasing (decreasing) rainfall. Meanwhile, Australian Summer Monsoon Index (AUSMI) only strongly correlates with rainfall in the SON period. The westerly (eastern) wind indicated by a positive (negative) monsoon index in the SON period has the effect of increasing (reducing) rainfall. The ENSO phenomenon with sea level during the JJA period has a strong relationship. In JJA, the highest sea level (maximum tide) rises by 12.6 cm during El Niño and decreases by 0.6 cm during La Niña. Meanwhile, the lowest sea level (minimum low tide) decreased by 16.6 cm during El Niño and increased by 0.7 cm during La Niña. These results can explain the influence of global and regional atmospheric circulation on a local scale on the coast of Semarang City.Keywords:RainfallSea levelEl NiñoLa NiñaMonsoon","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84120596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance analysis of catch fisheries in Sabang Waters 沙邦水域渔业的表现分析

Depik Jurnal Pub Date : 2022-10-18 DOI: 10.13170/depik.11.3.22182

S. Salmarika, Imam Shadiqin, M. Irham, I. Agustina, Rosi Rahayu, R. M. Aprilla, A. Rahmah

引用次数: 0

Identificaton of grouper parasites (Epinephelus coioides) in Talawi District, Batubara Regency 巴图巴拉县塔拉维地区石斑鱼寄生虫(Epinephelus coioides)的鉴定

Depik Jurnal Pub Date : 2022-10-15 DOI: 10.13170/depik.11.3.27131

R. Rumondang, Harmayani Harmayani, H. Manurung, Adlidar Putri, Ingka Sari

{"title":"Identificaton of grouper parasites (Epinephelus coioides) in Talawi District, Batubara Regency","authors":"R. Rumondang, Harmayani Harmayani, H. Manurung, Adlidar Putri, Ingka Sari","doi":"10.13170/depik.11.3.27131","DOIUrl":"https://doi.org/10.13170/depik.11.3.27131","url":null,"abstract":"Batu Bara Regency is a region with abundant natural resources, one of which is the cultivation of grouper fish. Grouper is a member of the Serranidae family of coral reef fish. Many groupers are raised in ponds, which makes them susceptible to disease due to environmental and dietary factors that are not adapted to grouper fish, which is a native species. Parasites are one of the grouper-infecting diseases that, if left untreated, can result in mass mortality and harm farmers. The aim of this study was to identify parasites in ponds in Mesjid Lama Village, Talawi District, so that it would be easier to determine the type of parasite, its level of attack, and subsequent efforts to eradicate it. This research employs a sampling technique, specifically a random sampling of orange-spotted grouper. The results of the performed analysis include analyses of both ectoparasites and endoparasites. Several types of ectoparasites were identified, including Cryptocaryon irritans, Pseudorhabdosynochus sp, Benedenia epinepheli, and Caligus sp, while Prosorynchus sp was identified as the endoparasite. The most prevalent parasite found in the fish is Cryptocaryon irritans.Keywords: EndoparasiteParasitesGrouper","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85656275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stock conditions and status of blue swimming crab (Portunus pelagicus) in Demak water area, the northern coast of Central Java 中爪哇北部海岸Demak水域蓝蟹种群状况及现状

Depik Jurnal Pub Date : 2022-10-05 DOI: 10.13170/depik.11.3.24226

Aisyah Nur Nabila, A. A. Taurusman, B. Wiryawan, M. Riyanto

{"title":"Stock conditions and status of blue swimming crab (Portunus pelagicus) in Demak water area, the northern coast of Central Java","authors":"Aisyah Nur Nabila, A. A. Taurusman, B. Wiryawan, M. Riyanto","doi":"10.13170/depik.11.3.24226","DOIUrl":"https://doi.org/10.13170/depik.11.3.24226","url":null,"abstract":"Blue swimming crab (Portunus pelagicus) is the dominant catch in Betahwalang, Demak, and the most important export fish commodity, particularly to USA. The high demand for this crab has been promoting an excessive fishing effort, causing a decrease in the crab's natural stock. This study aims to investigate the biological condition of P. pelagicus on the northern coast of Central Java and assess the crab stock exploitation status in this study area. Carapace width, body weight, Gonad Maturity Stages (GMS), and sex of crab samples were collected from the fishers and collectors landing sites or meeting points. This study employs a simple random sampling technique with no replacement. This study revealed that the maximum carapace width of female crabs was 56-164 mm, and the estimated carapace width at first maturity (Lm) was 98.2 mm. The relationships between carapace width and body weight between male and female crabs indicated positive and negative allometric growth patterns. During this assessment, the P. pelagicus stock indicated an 'over-exploited’ status, with an LB-SPR parameter of 19 percent and an exploitation rate (E) of 0.66. Management measures such as minimum legal size, reduced effort, and open-close areas and seasons should be implemented to achieve sustainable use of the crab fishery.Keywords:Blue swimming crabFishing gearDemak watersCarapace lengthSpawning potential ratio","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78808706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving quality of cassava peel meal as raw material for tilapia feed 木薯皮粕作为罗非鱼饲料原料的品质改进

Depik Jurnal Pub Date : 2022-10-01 DOI: 10.13170/depik.11.3.24620

A. N. Putra, Unah Indayah, Nokiyah Nokiyah, M. B. Syamsunarno

{"title":"Improving quality of cassava peel meal as raw material for tilapia feed","authors":"A. N. Putra, Unah Indayah, Nokiyah Nokiyah, M. B. Syamsunarno","doi":"10.13170/depik.11.3.24620","DOIUrl":"https://doi.org/10.13170/depik.11.3.24620","url":null,"abstract":"Cassava peel meal (CPM) has potential as a raw material for fish feed due to its abundant availability and good nutritional content. The high crude fiber content inhibits the use of CPM as a raw material for fish feed. Therefore, this study aims to evaluate the effect of Aspergillus niger fermentation of CPM on dietary nutrient digestibility and growth performance of tilapia (Oreochromis niloticus). It was conducted in 2 stages. The first stage was a fermentation process of CPM, which used a factorial randomized design consisting of a dose difference of A. niger, namely 10, 15, 20, 30 g.kg-1 and a fermentation time of 0, 12, 24 hours with 3 replications each. At a dose of 1.5% of A. niger during 24 hours of fermentation, the crude fiber content of fermented CPM was reduced up to 7.19%. the second stage was a 45 days feeding trial on tilapia used a completely randomized design consisting of 3 different treatments with 3 replications, namely: reference feed, unfermented cassava peal meal based diet (CPMD), and A. niger fermented CPMD. A. niger fermented CPMD showed an increase in growth, dry matter, protein, energy, and raw material digestibility, as well as daily growth rate compared to unfermented CPMD. The daily growth rate of fermented CPMD of 1.32%/day was significantly higher with P0.05 than the unfermented CPMD of 0.72%/day. Furthermore, the digestibility value of material test in the fermented CPMD (48.73%) was significantly higher (P0.05) than unfermented CPMD (11.74%). These results indicate that A. niger fermented CPM has the potential to be used as raw material for tilapia fish feed. Keywords:Aspergillus nigerFermentationTilapiaCrude fiber","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86955052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0