Turkish Journal of Aquatic Sciences最新文献_第10页

Toxicological effects of dichlorvos on haematology and histological changes in Clarias gariepinus juveniles and ameliorative potentials of Moringa oleifera leaves 敌敌畏对辣木幼虫血液学和组织学变化的毒理学影响及辣木叶片的改良潜力

Turkish Journal of Aquatic Sciences Pub Date : 2018-05-14 DOI: 10.4314/JAS.V32I2.9

S. Abdulkareem, O. Oyediran, R. Shaibu, M. Raji

{"title":"Toxicological effects of dichlorvos on haematology and histological changes in Clarias gariepinus juveniles and ameliorative potentials of Moringa oleifera leaves","authors":"S. Abdulkareem, O. Oyediran, R. Shaibu, M. Raji","doi":"10.4314/JAS.V32I2.9","DOIUrl":"https://doi.org/10.4314/JAS.V32I2.9","url":null,"abstract":"The presence of Dichlorvos in aquatic environment posed potential toxic effects on fish. Effects of Dichlorvos and ameliorative potential of Moringa oleifera leaves on Clarias gariepinus juveniles was investigated. The fish were exposed to varying concentrations (0.00, 0.50, 0.75, 1.00, 1.50 and 2.00 mg/l) of Dichlorvos for 96 h, 1/10th of 96 h LC 50 (1.75 mg/L) and fed on M. oleifera leaves (0, 5 and 10%) for 28 days. After the experiments, blood of the fish was assayed for haematological variables, while gills and liver were assayed for histopathological damages. The levels of erythrocytes and leucocytes in the exposed groups decreased (P <0.05) and increased (P<0.05) respectively compared to control, but, elevated and reduced significantly (P<0.05) in fish fed on 5% M. oleifera leaf respectively. Histopathological alterations such as lamellar fusion, oedema and necrosis were observed in the gills, while vacuolation, fibrosis, and necrosiswere revealed in the liver of Dichlorvos-exposed fish compared to control. However, the severity of damage reduced in the group fed on 5 % M. oleifera leaves. These results imply that 5% M. oleifera leaves in fish feed is capable of ameliorating the toxic effects of Dichlorvos on C. gariepinus . Key Words : Amelioration, Dichlorvos, haematology, histology, Moringa oleifera leaves","PeriodicalId":32064,"journal":{"name":"Turkish Journal of Aquatic Sciences","volume":"31 1","pages":"303-315"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83654520","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: 2

Gillnet selectivity of Sarotherodon galilaeus of Asejire lake, Oyo state, Nigeria 尼日利亚奥约州Asejire湖加利利沙蜥刺网选择性研究

Turkish Journal of Aquatic Sciences Pub Date : 2018-05-14 DOI: 10.4314/jas.v32i2.6

S. Ajagbe, D. Odulate, O. Olawuyi, M. T. Ojubolamo, T. Adekanmbi, B. Olatunji, A. T. Kareem, O. Ogunwale

引用次数: 1

Effects of ethanolic extracts of Ackee apple ( Blighia sapida ) on biochemical parameters of Clarias gariepinus juveniles 酸苹果醇提物对克拉丽亚鱼幼鱼生化指标的影响

Turkish Journal of Aquatic Sciences Pub Date : 2018-05-14 DOI: 10.4314/jas.v32i2.10

M. U. Effiong, M. E. Onyeze

{"title":"Effects of ethanolic extracts of Ackee apple ( Blighia sapida ) on biochemical parameters of Clarias gariepinus juveniles","authors":"M. U. Effiong, M. E. Onyeze","doi":"10.4314/jas.v32i2.10","DOIUrl":"https://doi.org/10.4314/jas.v32i2.10","url":null,"abstract":"The influence of ethanolic stem bark extract of Ackee Apple ( Blighia sapida ) was assessed on hepatic and renal functions in juvenile Clarias gariepinus . Fish were exposed to graded concentrations (1.6, 3.2, 6.4 and 12.8 g/L) of the extract for 21 days. The control group had 0.00g/L extract content. 10 fish were used per treatment and each treatment was replicated three times. Physico-chemical parameters (pH, dissolved oxygen and temperature) were monitored throughout exposure period. At the end of the experiment, blood samples were collected and assessed for some indices of hepatic and renal functions. Results showed that extract at 1.6 g/L did not induce significant (p>0.05) alternation in the serum activities of total protein, alanine aminotransferase (ALT), aspartate aminotransferase (AST) and uric acid when compared with the control. However, at higher extract concentrations the effects increased significantly (p<0.05) with increasing concentrations of extract. The highest effects were observed at 12.8 g/L having total protein of 8.51mmol/L, AST (14.39 mmol/L), ALT (16.99 mmol/L), ALP (66.0 mmol/L), uric acid (0.68 mg/L) and creatinine (20.7mg/L). Conclusively, the extract may be considered safe at lower concentration (1.6 g/L) but may potentiate serious biochemical alteration if continuously applied at 12.8 g/L. Key Words : Ackee apple, toxicity, kidney/liver enzymes, catfish","PeriodicalId":32064,"journal":{"name":"Turkish Journal of Aquatic Sciences","volume":"14 1","pages":"317-322"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87742837","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

Antioxidants in the plasma of african catfish ( Clarias gariepinus ) juveniles and adults reared in earthen ponds and concrete tanks 在土池和混凝土池中饲养的非洲鲶鱼幼鱼和成鱼血浆中的抗氧化剂

Turkish Journal of Aquatic Sciences Pub Date : 2018-05-14 DOI: 10.4314/JAS.V32I2.2

N. Achilike, L. Chukwu, P. Anyanwu

{"title":"Antioxidants in the plasma of african catfish ( Clarias gariepinus ) juveniles and adults reared in earthen ponds and concrete tanks","authors":"N. Achilike, L. Chukwu, P. Anyanwu","doi":"10.4314/JAS.V32I2.2","DOIUrl":"https://doi.org/10.4314/JAS.V32I2.2","url":null,"abstract":"Levels of antioxidants (Catalase, Superoxide dismutase and Glutathione-S-Transferase) in plasma of Clarias gariepinus reared in grow-out concrete tanks and earthen ponds in three Agricultural Zones of Lagos State were investigated. Six farms namely, TEM, TRA (Eastern zone), BLU, TIM (Western zone), CHA, MOY (Far Eastern zone) and control farm, located in NIOMR, Badore. Antioxidants were determined spectrophotometrically to evaluate oxidative stress in these facilities. Sixty-four blood samples were collected from juveniles and adults of catfish (eight fish per farm), reared in these farms for six months. Blood samples were analyzed with Randox diagnostic test kits. Results from antioxidants analyses showed that values of Catalase, Superoxide dismutase and Glutathione-S-transferase in plasma of C. gariepinus (juveniles and adults) from control farm ranged from 0.60 – 0.90 Umg/protein; 0.10 – 0.58 Umg/protein and 0.20 – 0.42 Umg/protein respectively. In juvenile and adult fish reared in concrete and earthen ponds, the catalase reduced significantly (P<0.05) in all farms when compared to control farm. Moreover, Superoxide dismutase and Glutathione transferase were equally elevated in other farms when compared to control. These alterations were more pronounced in fish reared in MOY and TEM fish farms than other farms. This indicates that fish in MOY and TEM farms were more stressed than fish in other farms when compared to control in rearing facilities. Key Words : Stress, antioxidants, catfish, earthen ponds and concrete tanks","PeriodicalId":32064,"journal":{"name":"Turkish Journal of Aquatic Sciences","volume":"9 1","pages":"231-239"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82224536","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

Effects of lead nitrate on glutathione production levels in Clarias gariepinus (Burchell, 1822) post juveniles 硝酸铅对Clarias gariepinus (Burchell, 1822)幼鱼后谷胱甘肽生产水平的影响

Turkish Journal of Aquatic Sciences Pub Date : 2018-05-14 DOI: 10.4314/JAS.V32I2.1

P. Samuel, O. P. Abiola, O. F. Arimoro, A. Ayanwale, A. Muhammed, Y. I. Auta

{"title":"Effects of lead nitrate on glutathione production levels in Clarias gariepinus (Burchell, 1822) post juveniles","authors":"P. Samuel, O. P. Abiola, O. F. Arimoro, A. Ayanwale, A. Muhammed, Y. I. Auta","doi":"10.4314/JAS.V32I2.1","DOIUrl":"https://doi.org/10.4314/JAS.V32I2.1","url":null,"abstract":"The effects of lead nitrate on glutathione (GSH) production levels in Clarias gariepinus post juveniles were investigated. The 96 hours LC 50 of the toxicant was determined. Six samples of the fish were exposed to sub-lethal concentrations of 0 mg/L, 28 mg/L, 43 mg/L and 57 mg/L with replicate in each case for a period of 28 days. Two samples of the fish were randomly selected from the treatments and control for the bioassay of GSH production levels in the kidney, liver and gill of the fish on the 14th and 28th day respectively. The results showed that 96 hours LC 50 for C. gariepinus exposed to lethal concentrations of lead nitrate was 284.189 mg/L. The GSH production levels were significantly lower (P≤0.05) in the kidney of the fish exposed to treatments 28 mg/L and 43 mg/L and in the liver of the fish exposed in all the treatments on both days 14 and 28, respectively. The GSH production levels were also significantly lower in the gill of the fish exposed in all the treatments. The liver of C. gariepinus exhibited a better control of the toxicant and therefore, a better biomarker of oxidative stress due to lead nitrate. Key Words : Glutathione, lead nitrate, 96 hours LC 50 , oxidative stress, Clarias gariepinus","PeriodicalId":32064,"journal":{"name":"Turkish Journal of Aquatic Sciences","volume":"96 1","pages":"223-229"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85304104","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

The hydro-environmental conditions and zooplankton of the light house creek, Lagos, Nigeria 尼日利亚拉各斯灯塔溪的水环境条件和浮游动物

Turkish Journal of Aquatic Sciences Pub Date : 2018-05-14 DOI: 10.4314/JAS.V32I2.8

I. Onyema, J. O. Okedoyin

{"title":"The hydro-environmental conditions and zooplankton of the light house creek, Lagos, Nigeria","authors":"I. Onyema, J. O. Okedoyin","doi":"10.4314/JAS.V32I2.8","DOIUrl":"https://doi.org/10.4314/JAS.V32I2.8","url":null,"abstract":"The hydro-environmental characteristics and zooplankton diversity at the Light-house creek were investigated for six months. Variations in water quality parameters were linked with tidal sea water incursion and rainfall/floodwater dynamics. Water and air temperatures were high (>25.8⁰C; >28 ⁰C) and Transparency decreased in the wet months. Salinity values were high (>19 ‰) all through, while the water remained alkaline (≥6.68). Biochemical oxygen demand (4.0-18.0 mg/L), chemical oxygen demand (1.0 and 2.0 mg/L) phosphate (0.06 and 8.40 mg/L) and nitrate showed variations (0.80 mg/L). On the other hand, minimum sulphate value was 224.0 mg/L while silicate values ranged from 2.10 to 4.60 mg/L. Zinc (<0.047 mg/L), Iron (<0.28 mg/L) and copper values (<0.014 mg/L) also varied. The zooplankton spectrum comprised 62.36% Arthropoda, 0.78% Chordata, 0.71% Cnidaria, 35.9%, juvenile stages and 0.95% were from other groups. A total of 49 zooplankton taxa from five different phyla and 18 juvenile stages were identified. Zooplankton biomass in terms of individuals per ml was higher in the dry than wet months. The copepod nauplii, bivalve and zoea larvae were the dorminant juvenile forms. Species richness indices (d) and similarity index were higher in the dry months than the wet months. Key Words : Phytoplankton, juvenile stages, Lagos habour, lagoon, water chemistry, mangrove creek","PeriodicalId":32064,"journal":{"name":"Turkish Journal of Aquatic Sciences","volume":"27 1","pages":"285-301"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80579451","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: 2

Effect of depuration on microbial load of mangrove oyster ( Crassostrea gasar ) from a polluted creek in Rivers State, Nigeria 净化对尼日利亚河流州一条受污染小溪中红树林牡蛎微生物负荷的影响

Turkish Journal of Aquatic Sciences Pub Date : 2018-01-31 DOI: 10.4314/jas.v32i1a.20

A. Okereke, C. Ezeama, O. Davies, C. D. Ezeonyejiaku

引用次数: 0

Preliminary assessment of some physico-chemical parameters of Hanyin Danmani stream, Kaduna State, Nigeria 尼日利亚卡杜纳州Hanyin Danmani河部分物化参数初步评价

Turkish Journal of Aquatic Sciences Pub Date : 2018-01-31 DOI: 10.4314/jas.v32i1a.4

M. Babatunde, M. Sulaiman

{"title":"Preliminary assessment of some physico-chemical parameters of Hanyin Danmani stream, Kaduna State, Nigeria","authors":"M. Babatunde, M. Sulaiman","doi":"10.4314/jas.v32i1a.4","DOIUrl":"https://doi.org/10.4314/jas.v32i1a.4","url":null,"abstract":"Preliminary determination of physico-chemical properties of Hayin Danmani stream, Igabi Local Government Area of Kaduna State, Nigeria was conducted in order to determine some physic-chemical parameters concentrations. Two different sampling stations were selected and samples were collected twice a month for three months, Nov 2015-Jan 216, along the course of Hayin Danmani stream. The mean values of pH (7.5±5.6), electrical conductivity (EC143±27.92 μs/cm), total dissolved solids (TDS 1515±54 mg/L) and turbidity (85±74.5 NTU were found to be higher than the recommended limit of World Health Organization (WHO) and Federal Environmental Protection (FEPA) with the exception of dissolved oxygen (DO, 6.5±3.4 mg/L), biochemical demand (BOD, 3±1.06 mg/L) and temperature, which were found to be in lower concentrations and within the recommended limits of FEPA and WHO respectively. The analysis of variance showed no significant difference in the months of November to January (p>0.05). The study revealed that Hayin Danmani Stream was polluted and the receiving river, the primary important streams, ponds and rivers need to be well monitored against all forms of contaminations and thus the impairment of water quality and other important aquatic organisms. Keywords: Water quality, evaluation, pollution, Hanyin Danmani Stream","PeriodicalId":32064,"journal":{"name":"Turkish Journal of Aquatic Sciences","volume":"17 1","pages":"33-43"},"PeriodicalIF":0.0,"publicationDate":"2018-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90610180","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

Physico-chemical parameters and diversity of zooplankton population in Ashtamudi Lake, Kerala, India 印度喀拉拉邦Ashtamudi湖浮游动物种群的理化参数与多样性

Turkish Journal of Aquatic Sciences Pub Date : 2018-01-31 DOI: 10.4314/JAS.V32I1A.9

S. Sahib

引用次数: 0

Some physico-chemical parameters and phytoplankton biodiversity of Ithikkara River, Kerala, India 印度喀拉拉邦伊蒂卡拉河的一些物理化学参数与浮游植物多样性

Turkish Journal of Aquatic Sciences Pub Date : 2018-01-31 DOI: 10.4314/JAS.V32I1A.7

S. Sahib

引用次数: 0