The Influence of Stream Barriers and The Hypothetical Origin of Highlands Fishes.

2021 ◽  
Author(s):  
Nurul F.M. Fadzil ◽  
Zarul H. Hashim ◽  
Amir S. R. M. Sah ◽  
Shahrul A. M. Sah ◽  
Amirul A. A. Aziz ◽  
...  
Keyword(s):  
Fish Species ◽  
Fish Assemblages ◽  
Fish Distribution ◽  
Species Assemblages ◽  
Fish Movement ◽  
Chi Square ◽  
Number Of Species ◽  
The World ◽  
Chi Square Test

Abstract Instream barriers such as waterfalls and man-made dams may result in distinct fish assemblages on both sides of the barriers. To determine the influence of these barriers on fish assemblages, a study was conducted in Sungai Enam that have substantial barriers including an 18-m high waterfall with 6.1% slope. Fish were captured using a backpack electrofishing gear together with scoop nets. Thirteen fish species from six families were recorded along this stream, but only Poropuntius smedleyi (Cyprinidae) can be found along the stream and the reach above the waterfall. Studies on a second site, Sungai Kooi, that has a 65m high and 90° slope waterfall, revealed eight fish species from three families, but only P. smedleyi and Devario regina (Cyprinidae) occurred above the waterfall. The number of species in both streams increases from upstream to downstream. A chi-square test revealed that the total number of species among reaches in Sungai Enam differed significantly. Fish species found above the waterfall are known to have no special adaptations to climb or jump over the barriers. Therefore, to explain their existence above the substantial waterfalls especially in Sungai Kooi, we proposed three hypotheses: (1) the world was once flooded and there was no limitation to fish distribution, (2) fish species assemblages were separated by land uplifting, and (3) there are other stream branches enabling fish movement into respective streams. Further studies are required to confirm these hypotheses.

scholarly journals Occupational hazards and public health concerns of migrant construction workers: an epidemiological study in southern India

2019 ◽  
Vol 6 (2) ◽  
pp. 818
Author(s):  
C. J. Nirmala ◽  
S. Dharaneesh Prasad
Keyword(s):  
Respiratory Infections ◽  
Labour Force ◽  
Cross Sectional Study ◽  
Construction Workers ◽  
Gastrointestinal Infections ◽  
Chi Square ◽  
Cross Sectional ◽  
The World ◽  
Musculoskeletal Problems ◽  
Chi Square Test

Background: Construction industry is one of the stable growing industries of the world and construction labour form 7.5% of the world labour force. In India, it is the largest economic activity after agriculture. Migrant construction workers are at a greater risk of developing certain health disorders and sickness than workers in many other industries. The objective was to study the socio demographic profile, morbidity profile among construction workers.Methods: A cross sectional study conducted at two construction sites in southern Bangalore and all workers were enrolled as study subjects. Data was collected using a pretested semi structured questionnaire. Statistical analysis used: descriptive statistics like percentages and Chi square test for test of significance.Results: Majority of the study population belonged to 15-45 years age group (87.3%), class IV (40.3%) socioeconomic status, Hindu religion (85%). Around 40% of them were illiterates and 68% of them were unskilled workers, rest semiskilled workers. Around 50% were from Raichur district of North Karnataka. Prevalence of injury was 8%, musculo-skeletal problems were around 50% followed by respiratory infections and gastrointestinal infections.Conclusions: The prevalence of musculoskeletal problems, respiratory problems and gastrointestinal infections was reported to be high among unskilled and semiskilled construction workers. There is need for health education and other prevention strategies for control of the same. Measures are needed to improve the work environment of construction workers by ensuring availability of personal protective equipments, good living conditions and sanitation facilities at the sites. 

scholarly journals Acute pancreatitis and low ascites-serum albumin gradient ascites caused by Brucellosis

2021 ◽  
Vol 8 (8) ◽  
pp. 470-474
Author(s):  
Mesut Aydin
Keyword(s):  
Acute Pancreatitis ◽  
Serum Proteins ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Chi Square ◽  
Pancreatic Leakage ◽  
Brucella Infection ◽  
The World ◽  
Chi Square Test ◽  
Spss Software

Objective: Brucellosis is a zoonotic disease seen widely around the world. Although many aspects and treatment of this disease is well known, peritoneal involvement and ascites is not well established so far. Material and Methods: This study retrospectively enrolled 346 adult patients (aged >17 years) with acute Brucellosis attending Hepatology Clinic, Van Yuzuncu Yil University, between April 2013 and May 2016. Characteristics of those with and without ascites were analyzed using Pearson correlation coefficients and Chi-Square test in SPSS software system. Results: Of the 346 cases, 20 (5, 7%) had ascites. Those with ascites had significantly higher transaminase, cholestatic enzyme and amylase levels compared to those without ascites. Conclusions: We conclude that acute Brucella infection can lead to a unique low gradient ascites probably resulting from pancreatic leakage followed by peritoneal accumulation of serum proteins.

scholarly journals Demersal fish assemblages and habitat characteristics on the continental shelf and upper slope of the north-western Mediterranean

2000 ◽  
Vol 80 (6) ◽  
pp. 981-988 ◽  
Author(s):  
Montserrat Demestre ◽  
Pilar Sánchez ◽  
Pere Abelló
Keyword(s):  
Continental Shelf ◽  
Fish Species ◽  
Fish Assemblages ◽  
Demersal Fish ◽  
Western Mediterranean ◽  
Habitat Characteristics ◽  
Species Assemblages ◽  
The North ◽  
Benthic Sediments ◽  
Upper Slope

Continental shelf and upper slope fish communities were studied along the Catalan coast based on 66 experimental bottom otter trawls. A total of 79 demersal fish species were studied by means of cluster analysis and multi-dimensional scaling (MDS) ordination for community structure. Analysis revealed the existence of five major location clusters. Similarity percentage analysis (SIMPER) was determined by comparing the dissimilarity between two groups of samples using the discriminating species. Geomorphological characteristics, bottom substratum and depth showed direct influences on species assemblages. High correlation between the biotic data samples and depth was observed. The fish species assemblages identified five main demersal fish associations which corresponded with the five location clusters and with five benthic sediments (mud of the upper slope, sand and gravel, mud of the shelf, muddy-sand and sand with rocky outcrops).

Hubungan Kecacingan dengan Kejadian Anemia pada Anak Sekolah Dasar di Kecamatan Tanjung Senang Bandar Lampung

2021 ◽  
Vol 1 (4) ◽  
pp. 445-452
Author(s):  
Rita Agustina ◽  
Tusy Triwahyuni ◽  
Devita Febriani Putri ◽  
Nindi Destiani
Keyword(s):  
Elementary School ◽  
School Children ◽  
Elementary School Children ◽  
P Value ◽  
Chi Square ◽  
Cross Sectional ◽  
The World ◽  
Chi Square Test ◽  
Quota Sampling ◽  
Prevalence Of Anemia

ABSTRACT: RELATIONSHIP WITH ANEMIA IN ELEMENTARY CHILDREN IN TANJUNG SENANG REGENCY, BANDAR LAMPUNG Background: Anemia is a condition in which the number of red blood cells or the hemoglobin concentration in them is less than normal. WHO in the World Wide Prevalence of Anemia reports that the total population of the world who suffer from anemia is 1.62 billion people with a prevalence in primary school children (25.4%) and 305 million school children worldwide suffer from anemia. In general, the cause of anemia is nutritional deficiencies, especially iron deficiency and parasitic infections such as worms. Worms is an infectious disease caused by parasites in the form of worms. Objective: Knowing the Relation between Worms and Anemia in Elementary School Children in In Tanjung Senang District Bandar Lampung in 2020. Method: This type of research is quantitative research and analytical observational research methods with a cross sectional approach with the Chi Square test. Sampling was done using Quota Sampling. The sample in this study were 63 people. Results: The results of the Chi Square test showed p-value = 0.000, which is less than the significance value of 5% (0.05), this shows that there is a significant relationship between worms and anemia in elementary school children in Tanjung Senang, Bandar Lampung, in 2020. Conclusion: There is a significant relationship between helminths and the incidence of anemia in elementary school children in Tanjung Senang, Bandar Lampung, in 2020. Keywords: Worms, Anemia Incidence  ABSTRAK: HUBUNGAN KECACINGAN DENGAN KEJADIAN ANEMIA PADA ANAK SEKOLAH DASAR DI KECAMATAN TANJUNG SENANG BANDAR LAMPUNG Pendahuluan: Anemia merupakan suatu kondisi dimana jumlah sel darah merah atau konsentrasi hemoglobin di dalamnya kurang dari biasanya. WHO dalam World wide Prevalence of Anemia melaporkan bahwa total dari keseluruhan penduduk dunia yang menderita anemia adalah 1,62 miliar orang dengan prevalensi pada anak sekolah dasar (25,4%) dan 305 juta anak sekolah di seluruh dunia menderita anemia. Pada umumnya penyebab anemia adalah kekurangan nutrisi, terutama kekurangan zat besi dan infeksi parasit seperti kecacingan. Kecacingan merupakan penyakit infeksi yang disebabkan oleh parasit berupa cacing.Tujuan: Penelitian ini bertujuan untuk mengetahui Hubungan Kecacingan Dengan Kejadian Anemia Pada Anak Sekolah Dasar di Di Kecamatan Tanjung Senang Bandar Lampung Tahun 2020. Jenis penelitian yang digunakan adalah penelitian kuantitatif dan metode penelitian analitik observasional dengan pendekatan cross sectional dengan uji Chi Square. Pengambilan sampel dilakukan dengan menggunakan Quota Sampling. Sampel pada penelitian ini sebanyak 63 orang.Hasil: Hasil uji Chi Square  menunjukkan p-value = 0.000 dimana kurang dari nilai kemaknaan yaitu 5% (0.05), hal tersebut menunjukkan terdapat hubungan yang signifikan antara kecacingan dengan kejadian anemia pada anak Sekolah Dasar di Kecamatan Tanjung Senang Bandar Lampung Tahun 2020.Kesimpulan: Kesimpulannya terdapat hubungan yang signifikan antara kecacingan dengan kejadian anemia pada anak Sekolah Dasar di Kecamatan Tanjung Senang Bandar Lampung Tahun 2020. Kata Kunci  Kecacingan, Kejadian Anemia

Historical Changes in Large River Fish Assemblages of the Americas

2005 ◽  
Keyword(s):  
Fish Species ◽  
Fish Assemblages ◽  
Sewage Treatment ◽  
Fish Fauna ◽  
Large River ◽  
Water Volume ◽  
Mean Width ◽  
Minas Gerais State ◽  
The World ◽  
Annual Discharge

<em>Abstract.</em>—The Rio das Velhas is a tributary of the Rio São Francisco, one of Brazil’s largest rivers. It is the Rio São Francisco’s second most important tributary in water volume (mean annual discharge of 631 m<sup>3</sup>/s), with a drainage area of 27,867 km<sup>2</sup>, length of 761 km, and mean width of 38 m. Like many other rivers around the world, it became heavily polluted in the 1900s. The Rio das Velhas is the most polluted river of Minas Gerais state because the basin contains approximately 4.5 million people. Unlike other Brazilian rivers, its fish fauna was studied from 1850 to 1856. Fifty-five fish species were recorded; 20 of them were first described at that time, when there were previously no more than 40 known species in the entire São Francisco basin. Recent fish collections, approximately 150 years later, indicate 107 fish species, but some may be locally extinct. There are good prospects of rehabilitating this fauna because of the connectivity of the Rio das Velhas with the São Francisco main stem, its well-preserved tributaries, and increased investments in sewage treatment.

scholarly journals Historical biogeography of fishes from coastal basins of Maranhão State, northeastern Brazil

2019 ◽  
Vol 17 (2) ◽  
Author(s):  
João Marcelo S. Abreu ◽  
Jack M. Craig ◽  
James S. Albert ◽  
Nivaldo M. Piorski
Keyword(s):  
Fish Species ◽  
Climatic Conditions ◽  
Northeastern Brazil ◽  
Species Assemblages ◽  
Biogeographic History ◽  
Biogeographic Provinces ◽  
Species Pairs ◽  
The World ◽  
History Of ◽  
Coastal Basins

ABSTRACT The Amazonian ichthyofauna is one of the most diverse in the world, yet fishes from the adjacent coastal basins of Maranhão State in Northeastern Brazil remain poorly known. We use phylogeographic, community phylogenetic and phylogenetic beta diversity methods to study the biogeographic history of fishes from the coastal basins of Maranhão State. We report a total of 160 fish species from the basins of the Maranhão region, representing a 93% increase over results of previous studies. All the fish species assemblages from Maranhão are polyphyletic, with only a few putative sister species pairs inhabiting the region. The modern watershed divides among Maranhão basins do not form substantial barriers to dispersal for freshwater fish species, and are more effectively modelled as biogeographic islands than as biogeographic provinces. In combination these results suggest that the Maranhão ichthyofauna was assembled under the influence of several macroevolutionary (extinction, dispersal) and landscape evolution processes, during the Miocene and Pliocene, as well as by the modern ecological characteristics of the region. The results indicate that the distinctive geological and climatic conditions and history of Northeastern Brazil strongly constrained the formation of aquatic faunas in coastal basins of Maranhão State.

scholarly journals Association between Truck Crashes due to Mechanical Failure and Truck Age

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Jaeyoung Lee ◽  
Suyi Mao ◽  
Mohamed Abdel-Aty ◽  
Yanqi Lian ◽  
Lishengsha Yue ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Environmental Effects ◽  
Traffic Safety ◽  
Mechanical Failure ◽  
Environmental Benefits ◽  
Chi Square ◽  
The World ◽  
Chi Square Test ◽  
The Impact

There have been efforts to restrict older trucks in many jurisdictions all over the world. The primary goal of the restrictions is to minimize greenhouse gas emissions. In addition to the environmental benefits, it is also possible that the truck age restriction could contribute to the enhancement of traffic safety. Older trucks are subject to longer travel-miles than newer trucks and tend to have higher mechanical failure rates. Extremely few studies have been done to explore the impact of trucks’ age on their crash occurrence due to mechanical problems. This study aims to investigate the association between the truck crashes due to mechanical issues and the truck age. Two approaches are adopted to achieve the objective. First, a chi-square test reveals that the proportions of the mechanical failures among older trucks are higher than those among newer ones ( χ 2  = 256.199, p < 0.0001 ). Second, the modeling results indicate that the number of truck crashes due to mechanical failures is significantly increased by the truck age. The findings suggest that policies restricting older trucks should consider not only environmental effects but also traffic safety benefits.

scholarly journals PENGARUH USIA DAN JENIS KELAMIN PADA KEPATUHAN PASIEN DIABETES MELITUS MENGGUNAKAN OBAT ANTIDIABETES DI PERUM KETAPANG SOKARAJA KULON

2019 ◽  
Vol 10 (2) ◽  
pp. 76-81
Author(s):  
Ikhwan Yuda Kusuma
Keyword(s):  
Drug Information ◽  
Third Place ◽  
Chi Square ◽  
The Third ◽  
Central Java ◽  
The World ◽  
Chi Square Test ◽  
Survey Results ◽  
Central Java Province ◽  
Diabetes Melitus

ABSTRACT The WHO survey results show that the number of DM patients in Indonesia is ranked the 4th largest in the world. DM causes death by 5% every year. Deaths from DM are expected to increase by 50% in the next ten years. The results of the 2007 Central Java RISKESDAS showed that the prevalence of DM in Central Java province was 0.8% and overall was 1.3%. The highest prevalence is found in Cilacap Regency (3.9%), second place is Tegal City Regency (3.1%), for the third place is Surakarta (2.8%), fourth place is Pemalang (2.1%), and fifth place is occupied by Banyumas (1.9%) (Ministry of Health, 2009). This study used an experimental design by treating the group of cases. The research instruments in this study were interview guides about the number of remaining antidiabetic drugs to check the compliance and MMAS questionnaires that had been validated and translated into Indonesian versions (Setyaningsih, 2013). The results of data analysis using the Chi-Square test were obtained p = 0.220 (p> 0.05) based on the MMAS questionnaire, this indicates that this indicates that this study of age has a significant influence on the adherence of antidiabetic use in DM patients in Perum Ketapang Sokaraja Kulon.   Keywords: Age, Diabetes Mellitus, Drug Information          

scholarly journals Analysis Of Smoking Behavioral Factors In Adolescents During Covid-19 Pandemic In Aru Islands Maluku

2021 ◽  
Vol 5 (1) ◽  
pp. 196-203
Author(s):  
Novalin Wakim ◽  
Milla Evelianti Saputri ◽  
Milya Helen
Keyword(s):  
Smoking Habit ◽  
Total Sample ◽  
Smoking Behaviour ◽  
P Value ◽  
Behavioral Factors ◽  
Chi Square ◽  
Cross Sectional ◽  
Good Education ◽  
The World ◽  
Chi Square Test

Background: Smoking has become a habit of Indonesian society. This behavior is not only found in adults but also in adolescents over 15 years. Indonesia ranks third out of the ten largest smoking countries in the world. There are 33.37% of the population of the Aru Islands aged over 15 years who have a smoking habit. This behaviour in adolescents occurs due to invitations from peers, being ridiculed by friends if they do not smoke, desire to try new things, fad, addicted, imitating parents and the influence of the mass media.Purpose: This study aimed to determine the factors of smoking behaviour in adolescents in Aru Islands, Maluku.Methods: This study used a cross sectional approach with a total sample of 72 respondents using purposive sampling technic. This research used questionnaire as instrument, whereas the data were analysed using the chi-square test to relate the analysed data to the chi-square of age, education, knowledge, and stress levels.Results: The results shows that there are relationships between age (p. value 0.015), education (p. value 0.005), knowledge (p. value 0.038) and stress levels (p. value 0.035) on smoking behaviour in the Aru Islands region, Maluku.Conclusion: The hope is that with good education and knowledge, teenagers in these areas will be more easily exposed to information about the dangers and impacts of smoking at a young age and not use cigarettes as an escape to deal with stress

scholarly journals Fish Assemblages in a Small Mangrove System on Príncipe Island, Gulf of Guinea

2021 ◽  
Vol 8 ◽  
Author(s):  
Mariana Cravo ◽  
Armando J. Almeida ◽  
Hamilton Lima ◽  
João Azevedo e Silva ◽  
Salomão Bandeira ◽  
...  
Keyword(s):  
Fish Species ◽  
Fish Assemblages ◽  
Developmental Stages ◽  
Environmental Parameters ◽  
Mangrove Ecosystem ◽  
Dry Season ◽  
Fish Distribution ◽  
Food Sources ◽  
Revealed Preferences ◽  
Sao Tome And Principe

Mangroves are highly productive ecosystems with complex adaptations to the transition between freshwater and sea. Mangroves function as nursery habitats for many organisms, providing protection and food sources for early developmental stages of crustaceans and fish, helping to maintain adjacent marine stocks. Mangroves in São Tomé and Príncipe remain poorly studied. This study addresses the importance of a small mangrove stand to ichthyofauna. The main goal of the study was to describe the fish assemblages of the Praia Salgada mangrove stand on Príncipe Island, and assess if variations in the season, tide, and mangrove zone affected fish distribution. Fish assemblages were sampled with mosquito nets during the rainy and dry seasons, and neap and spring tides, while environmental parameters such as water depth, temperature, pH, and salinity measurements were taken. The characteristics of the water column were affected by a sandbank that developed between sampling seasons, impacting on the dynamics of the water and biological exchanges between the mangrove stand and the adjacent marine environment. The study identified 14 fish species occurring in the Praia Salgada mangrove stand from a total of 772 specimens caught. Five species were recorded for the first time as occurring in the country’s mangrove areas, namely Caranx latus, Ethmalosa fimbriata, Mugil curema, Gobioides cf. africanus, and Citharus cf. linguatula. Most of the reported species are of commercial interest, and were predominantly juveniles, suggesting that the mangrove ecosystem provides a nursery function for several species. Some species revealed preferences for either the upper or lower part of the mangrove forest. The size of fish sampled tended to be bigger during the dry season, especially for the Mugilidae, Aplocheilichthys spilauchen and Gobiidae groups. E. fimbriata and Eucinostomus melanopterus displayed similar sizes between seasons. The average quantity of fish caught per day in the rainy season was three times higher than in the dry season. The fish species distribution in the mangrove stand varied significantly according to the season and mangrove zone. The overall results suggest that the Praia Salgada mangrove stand provides a nursery function for several of the studied fish species.

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