Osmoregulation is a physiological adjustment mechanism of fish to environmental conditions. Fish growth performance will reduce when a large amount of energy is redirected for the osmoregulation process. The purpose of this study was to determine the osmotic work level (OWL), osmoregulation pattern, condition factor (K), gonad maturity stages (GMS) and analyze the relationship between OWL with condition factor and GMS of tilapia collected from three floating net cages in Cengklik reservoir, Boyolali. Samples were collected during March – April 2022 followed by some allometric measurements and regression analyses. The OWL of tilapia at the three cages ranged from 4 – 10 mOsm/L H2O; they performed a hyperosmotic osmoregulation pattern. The condition factor of male and female tilapia were1,86±0,21 and 1,89±0,18. GMS of both male and female tilapia was dominated by GMS IV with a fecundity of 9408±2092.54 eggs. OWL did not reveal a significant effect on condition factors or on the GMS of tilapia (p>0.05). Pearson correlation test showed a weak relationship between OWL with condition factors (r = 0,204) and tilapia GMS (r = -0,001). Therefore, tilapia uses less energy in osmotic work to produce good growth performance because it has more energy for growth, as indicated by the high condition factor (K>1) and domination by fish with GMS IV level of mature gonads.Keywords: Condition Factor; Gonad Maturity; Fish Cages; Oreochromis niloticus; Osmoregulation
{"title":"Osmoregulation performance, condition factor, and gonad maturity of tilapia (Oreochromis niloticus) in Cengklik reservoir, Boyolali","authors":"Akbar Aryansyah, Sutrisno Anggoro, Norma Afiati","doi":"10.29103/aa.v1i2.9356","DOIUrl":"https://doi.org/10.29103/aa.v1i2.9356","url":null,"abstract":"Osmoregulation is a physiological adjustment mechanism of fish to environmental conditions. Fish growth performance will reduce when a large amount of energy is redirected for the osmoregulation process. The purpose of this study was to determine the osmotic work level (OWL), osmoregulation pattern, condition factor (K), gonad maturity stages (GMS) and analyze the relationship between OWL with condition factor and GMS of tilapia collected from three floating net cages in Cengklik reservoir, Boyolali. Samples were collected during March – April 2022 followed by some allometric measurements and regression analyses. The OWL of tilapia at the three cages ranged from 4 – 10 mOsm/L H2O; they performed a hyperosmotic osmoregulation pattern. The condition factor of male and female tilapia were1,86±0,21 and 1,89±0,18. GMS of both male and female tilapia was dominated by GMS IV with a fecundity of 9408±2092.54 eggs. OWL did not reveal a significant effect on condition factors or on the GMS of tilapia (p>0.05). Pearson correlation test showed a weak relationship between OWL with condition factors (r = 0,204) and tilapia GMS (r = -0,001). Therefore, tilapia uses less energy in osmotic work to produce good growth performance because it has more energy for growth, as indicated by the high condition factor (K>1) and domination by fish with GMS IV level of mature gonads.Keywords: Condition Factor; Gonad Maturity; Fish Cages; Oreochromis niloticus; Osmoregulation","PeriodicalId":32635,"journal":{"name":"Acta Aquatica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135773047","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}
This study aims to analyze growth patterns, condition factors, and gonad maturity of the white-spotted spinefoot (Siganus canaliculatus, Park 1797) in coastal waters of Bontang City, East Kalimantan. Fish samples were collected every month from February to June 2020. Fish were collected using a simple random method from the catches of fishers who landed their fish at the Tanjung Limau port, Bontang City. Fish body length was measured using a digital caliper, and body weight was measured using a digital balance. The results of this study obtained a total of 226 individual fish, consisting of 110 males and 116 females. Male fish have a length ranged from 94.78-197.88 mm and a weight ranged from 18.24-94.30 g, while female fish have a body length ranged from 90.00-201.09 mm and a body weight ranged from 17.98-95.16 g. The length-weight relationship shows a strong correlation (r2=0.967) with the regression equation W=5x10-5L2.721. The fish growth pattern is negative allometric. The average condition factor was 1.08±0.09, which reflected good growth. Gonadal mature of fish are found in May and June, indicating that the fish are ready to spawn.Keywords: condition factor; growth; Siganus canaliculatus
本研究旨在分析东加里曼丹邦塘市沿海水域白斑棘足(Siganus canaliculatus, Park 1797)的生长模式、条件因素和性腺成熟度。2020年2月至6月每月采集鱼类样本。采用简单的随机方法从在Bontang市Tanjung Limau港上岸的渔民的渔获物中收集鱼类。鱼的体长用数字卡尺测量，体重用数字天平测量。本次研究共获得226条鱼，其中雄鱼110条，雌鱼116条。雄鱼体长94.78-197.88毫米，体重18.24-94.30克，雌鱼体长90.00-201.09毫米，体重17.98-95.16克。长度-权重关系与回归方程W=5x10-5L2.721呈强相关(r2=0.967)。鱼的生长模式为负异速生长。平均条件因子为1.08±0.09，生长良好。性腺成熟的鱼在五月和六月被发现，这表明鱼已经准备好产卵了。关键词:条件因素;经济增长;Siganus canaliculatus
{"title":"Growth patterns, condition factors, and gonad maturity of the white-spotted spinefoot (Siganus canaliculatus, Park 1797) in the coastal area of Bontang City, East Kalimantan","authors":"Jusmaldi Jusmaldi, Nurul Wahidah, Nova Hariani","doi":"10.29103/aa.v1i2.8680","DOIUrl":"https://doi.org/10.29103/aa.v1i2.8680","url":null,"abstract":"This study aims to analyze growth patterns, condition factors, and gonad maturity of the white-spotted spinefoot (Siganus canaliculatus, Park 1797) in coastal waters of Bontang City, East Kalimantan. Fish samples were collected every month from February to June 2020. Fish were collected using a simple random method from the catches of fishers who landed their fish at the Tanjung Limau port, Bontang City. Fish body length was measured using a digital caliper, and body weight was measured using a digital balance. The results of this study obtained a total of 226 individual fish, consisting of 110 males and 116 females. Male fish have a length ranged from 94.78-197.88 mm and a weight ranged from 18.24-94.30 g, while female fish have a body length ranged from 90.00-201.09 mm and a body weight ranged from 17.98-95.16 g. The length-weight relationship shows a strong correlation (r2=0.967) with the regression equation W=5x10-5L2.721. The fish growth pattern is negative allometric. The average condition factor was 1.08±0.09, which reflected good growth. Gonadal mature of fish are found in May and June, indicating that the fish are ready to spawn.Keywords: condition factor; growth; Siganus canaliculatus","PeriodicalId":32635,"journal":{"name":"Acta Aquatica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135773051","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}
This study aims to determine the effectiveness of different doses of vitamin E on the maturation of freshwater crayfish (Cherax quadricarinatus). The method used was a Randomized Block Design (RAK) with 4 treatments and 3 replications. The treatments in this study were P1 (control), P2 (vitamin E 150 mg/kg feed), P3 (vitamin E 300 mg/kg feed), and P4 (vitamin E 450 mg/kg feed). Parameters observed in this study were Gonad Maturity Index (GIC), fecundity, and egg diameter. The results of Duncan's analysis showed that the increasing vitamin E to feed was significantly different (P<0.05) with treatment without increasing vitamin E to LAT maturation such as gonadal maturity index, fecundity, and egg diameter. However, administering different doses of vitamin E (150 mg/kg of feed, 300 mg/kg of feed, and 450 mg/kg of feed) had no significant effect on LAT maturation. The treatment without the increasing vitamin E did not show maturity, which was indicated by the value of all parameters 0, while the treatment with the increasing vitamin E to the feed resulted in a range of IKG values, fecundity, and egg diameter respectively was 8.28 - 9.84%, 230.66 - 30.66 eggs and 0.46 – 0.48 mm. The best treatment in this study was treatment with a dose of vitamin E 450 mg/kg feed because it had the highest reproductive performance and could accelerate gonadal maturity in LAT.Keywords: Egg Diameter; Fecundity; Freshwater Lobster; Maturation; Vitamin E
{"title":"Effectiveness of different dosages of vitamin E on the maturation of freshwater lobster (Cherax quadricarinatus)","authors":"Mika Ladio, Siti Komariyah, Andika Putriningtias","doi":"10.29103/aa.v1i2.7419","DOIUrl":"https://doi.org/10.29103/aa.v1i2.7419","url":null,"abstract":"This study aims to determine the effectiveness of different doses of vitamin E on the maturation of freshwater crayfish (Cherax quadricarinatus). The method used was a Randomized Block Design (RAK) with 4 treatments and 3 replications. The treatments in this study were P1 (control), P2 (vitamin E 150 mg/kg feed), P3 (vitamin E 300 mg/kg feed), and P4 (vitamin E 450 mg/kg feed). Parameters observed in this study were Gonad Maturity Index (GIC), fecundity, and egg diameter. The results of Duncan's analysis showed that the increasing vitamin E to feed was significantly different (P<0.05) with treatment without increasing vitamin E to LAT maturation such as gonadal maturity index, fecundity, and egg diameter. However, administering different doses of vitamin E (150 mg/kg of feed, 300 mg/kg of feed, and 450 mg/kg of feed) had no significant effect on LAT maturation. The treatment without the increasing vitamin E did not show maturity, which was indicated by the value of all parameters 0, while the treatment with the increasing vitamin E to the feed resulted in a range of IKG values, fecundity, and egg diameter respectively was 8.28 - 9.84%, 230.66 - 30.66 eggs and 0.46 – 0.48 mm. The best treatment in this study was treatment with a dose of vitamin E 450 mg/kg feed because it had the highest reproductive performance and could accelerate gonadal maturity in LAT.Keywords: Egg Diameter; Fecundity; Freshwater Lobster; Maturation; Vitamin E","PeriodicalId":32635,"journal":{"name":"Acta Aquatica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135773121","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}
Nurhayati Nurhayati, Shahibul Auzan, Lia Handayani, Azwar Thaib, T M Haja Almuqaramah, Faisal Syahputra
Excessive and periodic use of insecticides has a negative impact on aquatic areas and the biota in them. Pesticides that accumulate in the aquatic environment affect the life non target organisms such as fish. In addition, pesticides can cause damage to the gills, liver, intestines and spleen. This organ plays an important role in the immune system. Thus, an alternative is needed to overcome this problem, one of which is the addition of activated charcoal in the feed. The aims of study to determine the effect of the use of activated charcoal in feed on the histopathological description of the spleen of tilapia exposed to organophosphate pesticides. The study was conducted experimentally by applying 4 treatments and 2 replications as the treatments used included T1 (0% activated charcoal); T2 (1% activated charcoal); T3 (2% activated charcoal); T4 (3% activated charcoal). The test fish used were tilapia measuring 7 ± 0,4 cm long with a stocking density of 30 fish/container. Parameters observed were histopathological description of tilapia spleen at pre exposure, post exposure and after administration of activated charcoal. The results of observations of tissue damage were analyzed descriptively qualitatively and presented in the form of images. The results showed that the addition of 2% activated charcoal (T3) in the feed was able to reduce damage to the spleen due to exposure to organophosphate insecticides. Keywords: Activated charcoal; feed; insecticide; spleen
{"title":"The effectiveness of activated charcoal in feed on histopathological features of the spleen of tilapia (Oreochromis niloticus) exposed to organophosphate insecticides","authors":"Nurhayati Nurhayati, Shahibul Auzan, Lia Handayani, Azwar Thaib, T M Haja Almuqaramah, Faisal Syahputra","doi":"10.29103/aa.v1i2.9223","DOIUrl":"https://doi.org/10.29103/aa.v1i2.9223","url":null,"abstract":"Excessive and periodic use of insecticides has a negative impact on aquatic areas and the biota in them. Pesticides that accumulate in the aquatic environment affect the life non target organisms such as fish. In addition, pesticides can cause damage to the gills, liver, intestines and spleen. This organ plays an important role in the immune system. Thus, an alternative is needed to overcome this problem, one of which is the addition of activated charcoal in the feed. The aims of study to determine the effect of the use of activated charcoal in feed on the histopathological description of the spleen of tilapia exposed to organophosphate pesticides. The study was conducted experimentally by applying 4 treatments and 2 replications as the treatments used included T1 (0% activated charcoal); T2 (1% activated charcoal); T3 (2% activated charcoal); T4 (3% activated charcoal). The test fish used were tilapia measuring 7 ± 0,4 cm long with a stocking density of 30 fish/container. Parameters observed were histopathological description of tilapia spleen at pre exposure, post exposure and after administration of activated charcoal. The results of observations of tissue damage were analyzed descriptively qualitatively and presented in the form of images. The results showed that the addition of 2% activated charcoal (T3) in the feed was able to reduce damage to the spleen due to exposure to organophosphate insecticides. Keywords: Activated charcoal; feed; insecticide; spleen","PeriodicalId":32635,"journal":{"name":"Acta Aquatica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135773126","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}
Rifqi Bulan, Muliani Muliani, Zulpikar Zulpikar, Saiful Adhar, Eva Ayuzar
Water quality is one of the determining factors for the success of tiger shrimp in super intensive tiger shrimp culture that has very high productivity, this produces a lot of waste in the form of manure and leftover food which is a trigger for the decline in water quality. This study aims to determine the use of RAS using a different filter arrangement of water quality in the maintenance of tiger shrimp (Panaeus monodon). This research was conducted from August to September 2019 at the Hatchery and Aquaculture Technology Laboratory, Faculty of Agriculture, Malikussaleh University. The method used in this study is an experimental method with data collection techniques with a non-factorial Completely Randomized Design (RAL) consisting of 4 treatments and 3 replications that were treatment A without filter (control), treatment B: physics filter, chemical filter, biological filter, treatment C: chemical filter, biological filter, physics filter, and treatment D: biological filter, physics filter, chemical filter. The results showed that the use of different filter arrangements in RAS has an influence on water quality parameters except for temperature, increase in length, and weight and has a very significant effect on survival. The best water quality was found in treatment B, physical filter, chemical filter, band iological filter.Keywords: black tiger shrimp; Recirculating Aquaculture System; water quality
{"title":"Application of recirculating aquaculture system in black tiger shrimp (Penaeus monodon) nursery indoors","authors":"Rifqi Bulan, Muliani Muliani, Zulpikar Zulpikar, Saiful Adhar, Eva Ayuzar","doi":"10.29103/aa.v1i2.8885","DOIUrl":"https://doi.org/10.29103/aa.v1i2.8885","url":null,"abstract":"Water quality is one of the determining factors for the success of tiger shrimp in super intensive tiger shrimp culture that has very high productivity, this produces a lot of waste in the form of manure and leftover food which is a trigger for the decline in water quality. This study aims to determine the use of RAS using a different filter arrangement of water quality in the maintenance of tiger shrimp (Panaeus monodon). This research was conducted from August to September 2019 at the Hatchery and Aquaculture Technology Laboratory, Faculty of Agriculture, Malikussaleh University. The method used in this study is an experimental method with data collection techniques with a non-factorial Completely Randomized Design (RAL) consisting of 4 treatments and 3 replications that were treatment A without filter (control), treatment B: physics filter, chemical filter, biological filter, treatment C: chemical filter, biological filter, physics filter, and treatment D: biological filter, physics filter, chemical filter. The results showed that the use of different filter arrangements in RAS has an influence on water quality parameters except for temperature, increase in length, and weight and has a very significant effect on survival. The best water quality was found in treatment B, physical filter, chemical filter, band iological filter.Keywords: black tiger shrimp; Recirculating Aquaculture System; water quality","PeriodicalId":32635,"journal":{"name":"Acta Aquatica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135773048","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}
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