Tropical Zoology最新文献_第10页

Acute toxicity of glyphosate and paraquat to the African catfish (Clarias gariepinus, Teugels 1986) using some biochemical indicators 草甘膦和百草灭对非洲鲶鱼(Clarias gariepinus, Teugels 1986)的急性毒性研究

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-10-02 DOI: 10.1080/03946975.2015.1076661

O. Ayanda, S. J. Oniye, J. Auta, V. Ajibola

{"title":"Acute toxicity of glyphosate and paraquat to the African catfish (Clarias gariepinus, Teugels 1986) using some biochemical indicators","authors":"O. Ayanda, S. J. Oniye, J. Auta, V. Ajibola","doi":"10.1080/03946975.2015.1076661","DOIUrl":"https://doi.org/10.1080/03946975.2015.1076661","url":null,"abstract":"The impact of acute exposure of Clarias gariepinus juveniles to commonly used herbicides, glyphosate and paraquat was evaluated through changes in fish mortality and biochemical indeces. Juveniles of the African catfish were exposed to varying acute concentration of glyphosate and paraquat. After 96 h of exposure, the 96 h LC50 for paraquat was found to be 0.07 mg/l while that of glyphosate was found to be 0.530 mg/l. After the exposure period, some enzymes were assayed for in fish liver using a combination of conventional methods and commercially available kits. Comparing with the control, ANOVA analysis revealed that there were significant (p < 0.05) increases in the activities of all enzymes assayed for alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH) and alkaline phosphatase (ALP). There were also significant (p < 0.05) increases in the activities of the antioxidant enzymes: catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx) and in lipid peroxidation, which was measured by thiobarbituric acid substances (TBARS). The result revealed that glyphosate and paraquat have the ability to modulate certain fish biochemical parameters and can therefore serve as reliable indicators of toxicity in environmental impact assessment programmes.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2015-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2015.1076661","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

Life cycle of Paracyclops pilosus Dussart, 1983 (Crustacea: Copepoda: Cyclopoida) and first record in Brazil Dussart副圆眼虾的生活史，1983年(甲壳纲:桡足目:圆眼虾目)和在巴西的首次记录

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-07-03 DOI: 10.1080/03946975.2015.1077042

L. C. da Silva, M. Nunes, José Valdecir De Lucca, O. Rocha

{"title":"Life cycle of Paracyclops pilosus Dussart, 1983 (Crustacea: Copepoda: Cyclopoida) and first record in Brazil","authors":"L. C. da Silva, M. Nunes, José Valdecir De Lucca, O. Rocha","doi":"10.1080/03946975.2015.1077042","DOIUrl":"https://doi.org/10.1080/03946975.2015.1077042","url":null,"abstract":"Paracyclops pilosus (Copepoda, Cyclopoida) is a typical benthic organism that also occurs in the water column. In this study, we report the first occurrence of this species in Brazil. Live adult individuals were acquired and maintained in laboratory cultures. Experiments were performed to address the parameters of the life cycle of this species. Adult males and females were maintained in water from the Negro River that was previously filtered in growth chambers, and were fed with the microalgae Pseudokirchneriella subcapitata and Ceriodaphnia silvestrii neonates. In these conditions, P. pilosus exhibited a short life cycle with an average duration of 12.8 days from egg-hatching to the adult stage. The developmental characteristics were similar to those that have been reported for other species of Cyclopoida; however, the duration we obtained for its post-embryonic development was longer than those that have been reported for other cyclopoid species at 25°C. Because this species is adapted to high temperatures, it is possible that its optimum development occurs at temperatures greater than 25°C. P. pilosus may be more widely distributed in the Amazon region than previously reported because this species may have been overlooked due to its small size and cryptic benthic habits.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2015-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2015.1077042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Description of immature stages of the flesh fly Peckia (Sarcodexia) lambens (Wiedemann) (Diptera: Sarcophagidae) provides better resolution for taxonomy and forensics 对肉蝇Peckia (sarcoxia) lambens (Wiedemann)(双翅目:麻蝇科)未成熟阶段的描述为其分类和鉴定提供了更好的解决方案

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-07-03 DOI: 10.1080/03946975.2015.1057435

K. P. Vairo, M. Queiroz, P. M. Mendonça, R. R. Barbosa, C. D. de Carvalho

引用次数: 5

Surveys of mammal communities in a system of five forest reserves suggest an ongoing biotic homogenization process for the Niger Delta (Nigeria) 对5个森林保护区哺乳动物群落的调查表明，尼日尔三角洲正在经历生物同质化过程。

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-06-11 DOI: 10.1080/03946975.2015.1049084

F. Petrozzi, G. Akani, N. Amadi, E. Eniang, S. Gippoliti, L. Luiselli

{"title":"Surveys of mammal communities in a system of five forest reserves suggest an ongoing biotic homogenization process for the Niger Delta (Nigeria)","authors":"F. Petrozzi, G. Akani, N. Amadi, E. Eniang, S. Gippoliti, L. Luiselli","doi":"10.1080/03946975.2015.1049084","DOIUrl":"https://doi.org/10.1080/03946975.2015.1049084","url":null,"abstract":"Community composition and an index of relative abundance were analyzed for mammals (excluding most rodents, shrews and bats) of five forest reserves in the Niger Delta (Southern Nigeria). Twenty-nine species were recorded, 86.2% of them being found in all protected areas. Although most of the species were already known from the study area, there were unexpected patterns concerning the duikers. Indeed, the presence of only one species (Philantomba walteri) (CH Smith, 1827) was confirmed, whereas at least five additional duiker species were reported for the study area by earlier authorities. Another duiker species (Cephalophus niger Gray, 1846) was recorded once during the present surveys and is not known whether it represents a stabilized presence in the Niger Delta. The empirical Abundance Index suggested that only three species were very rare (Trichechus senegalensis (Link, 1795), C. niger, and Pan troglodytes (Blumenbach, 1775)). Diversity-dominance diagrams showed that the evenness profiles were similar across study areas. Linear distance (Km) between the barycenters of forest reserves was significantly positively correlated with relative community composition dissimilarity. Overall, a biotic homogenization process for the mammal communities of the five forest reserves was observed, likely as an outcome of the high deforestation of the last 50 years.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2015.1049084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 57

On a new species of decorator crabs of the genus Paratymolus Miers, 1879 (Crustacea: Decapoda: Brachyura: Majoidea: Inachidae) from the Persian Gulf 波斯湾装饰蟹属一新种记述(甲壳纲:十足目:短足目:大总科:装饰蟹科)

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-04-03 DOI: 10.1080/03946975.2015.1036670

R. Naderloo, M. Türkay

引用次数: 3

Bird dropping masquerading of the nest by the potter wasp Minixi suffusum (Fox, 1899) (Hymenoptera: Vespidae: Eumeninae) 灰蜂(Minixi suffusum, Fox, 1899)对巢的伪装(膜翅目:蜂科:灰蜂科)

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-04-03 DOI: 10.1080/03946975.2015.1027103

T. H. Auko, B. M. Trad, R. Silvestre

引用次数: 6

Annotations on marine and freshwater leeches (Annelida, Clitellata, Hirudinea) from North Africa 北非海洋水蛭和淡水水蛭注释(蛭形目，蛭形目，水蛭目)

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-04-03 DOI: 10.1080/03946975.2015.1046737

Raja Ben Ahmed, M. Gammoudi, Ichrak Khaled, S. Tekaya, L. Mansour, S. Alwasel, A. Harrath

引用次数: 10

A review of the genus Hieroglyphus (Acrididae: Hemiacridinae) from India, with description of a new species 标题印度象形蝗属研究述评(蝗科:半蝗科)并附一新种描述

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-03-06 DOI: 10.1080/03946975.2015.1015850

H. Kumar, M. K. Usmani

引用次数: 6

Aspects of the ecology of the tortoise Kinixys nogueyi (Lataste, 1886) in Togo and Nigeria (West Africa) 多哥和尼日利亚(西非)陆龟Kinixys nogueyi (Lataste, 1886)生态学方面的研究

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-01-02 DOI: 10.1080/03946975.2014.992616

Gabriel Hoinsoudé Segniagbeto, E. Eniang, F. Petrozzi, L. Vignoli, D. Dendi, G. Akani, L. Luiselli

引用次数: 9

Population dynamics for banana prawns, Penaeus merguiensis de Man, 1888 in coastal waters off the northern part of the Persian Gulf, Iran 1888年在伊朗波斯湾北部沿海水域的香蕉对虾，merguiensis de Man

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-01-02 DOI: 10.1080/03946975.2015.1006459

M. Safaie

{"title":"Population dynamics for banana prawns, Penaeus merguiensis de Man, 1888 in coastal waters off the northern part of the Persian Gulf, Iran","authors":"M. Safaie","doi":"10.1080/03946975.2015.1006459","DOIUrl":"https://doi.org/10.1080/03946975.2015.1006459","url":null,"abstract":"This study was conducted to determine the population dynamics of Penaeus merguiensis stock in the coastal waters of the Persian Gulf. A total of 4994 male and 5264 female prawns were collected monthly by a bottom-trawl net, from July 2010 to September 2012. The carapace length and weight relationship demonstrated that growth in both sexes was allometric. The asymptotic carapace length (CL∞) was estimated at 48 mm for males and 54 mm for females. The growth parameter K was calculated as 1.6 Yr− 1 for males and 1.8 Yr− 1 for females. The total mortality rate for males was more than that for females. And the exploitation rates were 0.75 for males and 0.69 for females. The sex ratio identified that it was not a constant 1:1 throughout the year, with 51.3% females. Banana prawns can spawn all year round and have a spawning peak from February to May. The Lm50% was estimated at a carapace length of 33.64 mm. The exploitation of P. merguiensis in the area is intended to protect spawners and juvenile stock for renewal. Also, the results showed that long-term monitoring is still required to better understand P. merguiensis population dynamics.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2015-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2015.1006459","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15