scholarly journals Study of Fish Diversity and Livelihood Status of Fishermen in Karatoya River, Panchagarh Region

2021 ◽  
Vol 17 (2) ◽  
pp. 58-70
Author(s):  
Md. Abdur Razzaq Joadder ◽  
Sushen Roy ◽  
Dil Afroza Khanom ◽  
Syeda Nusrat Jahan ◽  
Md Al-Amin Sarker

Background: Objective: The study was conducted to investigate the fish diversity and socio-economic profiles of the fishermen of Karatoya River in Panchagarh district in the Northern part of Bangladesh. Methodology: Pertinent information was collected from forty randomly selected fishermen from the study area who were directly involved in fishing in the rivers during the period of twelve months from July 2017 to June 2018. The data interpretations showed that 50 fish species under 8 orders and 17 families were recorded from the Karatoya River during the study period. Cypriniformes was found as the most dominant order constituting 48% of the total fish populationfollowed by Channiformes (6%), Sliuriformes(18%), Clupiformes (6%), Mastacembeliformes (6%), Perciformes (12%), Beloniformes (2%), Tenaodontifomres (2%). Fishes in this river are seriously affected by the various kinds of natural and manmade causes. Under this circumstance, a better understanding of the diversity and distribution of fishes in the Karatoya River is urgently needed. Result: In the study area the fishermen age range from 16 to 65 years. It was found that most of the fishermen (35%) illiterate though a small proportion completed primary level of education. 75% percent of the fishermen used their own tube-well, while 20% and 5% used government and neighbors’ tube-well, respectively. In the study area, 55% of the fishermen were far from power plants and the rest of them had (45%) access to electricity. Majority (45%) of the fishermen was 1-10 decimal land, while 17.5% had 11-20 decimal lands and 15% had above 40 decimal lands and significant proportion of fishermen depend upon village doctors (62.5%) for their health facilities. Forty five percent of fishermen were engaged in fishing as their main occupation, 40% in agriculture and 15% in daily labor. Conclusion: Fishermen of Karatoya River were mostly illiterate, poor income, lack of training exposure and lack of awareness about their health facilities and sanitation. Journal of Science Foundation 2019;17(2):54-57

2018 ◽  
Vol 108 (0) ◽  
Author(s):  
Eduardo M. Brambilla ◽  
Virginia S. Uieda ◽  
Marcos G. Nogueira

ABSTRACT Knickzones are originated from basaltic outcroppings, present runs, riffles and pools and are highly influenced by flood pulses, which maintain their natural dynamic. However, the construction of hydroelectric power plants alters or eliminate the dynamism of this area and can affect the resident fauna that may be dependent on it. The aim of this study was to evaluate the organization of a knickzone’s ichthyofauna considering the influence of seasonality and connectivity of habitats. The study was performed in a knickzone located in the Sapucaí-Mirim River, Southeast Brazil. We sampled four rocky pools connected to the river and three isolated pools, during rainy and dry conditions. The analysis of the two factors (connectivity and seasonality) and of their interaction showed a significant influence only for seasonality on ichthyofauna structure, with higher values of abundance in the rainy season. The species that most contributed to the high dissimilarity between seasons were Knodus moenkhausii (50% of contribution) and Astyanax bockmanni (21%). The former is the most abundant species in the rainy season and the later in the dry season. The alteration between low and high water level occurs frequently in knickzones, as it is a rocky shallow platform in the middle of a river, with floods occurring seasonally or in stochastic short-term periods. This hydrological seasonal dynamic, high limnological variability and complex interactions of different habitats (pools, runs and rapids) explain the particular ichthyofauna structure in such small area. Our results also indicate the potential importance of basaltic knickzones for regional fish diversity conservation, especially due to the imminent threat by intensive hydropower reservoir construction.


2008 ◽  
Vol 11 (Number 2) ◽  
pp. 9-22
Author(s):  
A S El Shwaihde ◽  
A S M Giasuddin ◽  
M M Ziu

The presets study was designed to ionic the serum levels of vitamin E and lipids ITCh. Ms. HDL-C. LDL-C) and their relationships in acme myocardial it (AMI) patinas nl a particular geographical area such as Deena, Libya. Patients with AM! Bomber: 33, age range: 34-76 years; sex: 24 males. nine females) who were admitted to corona'', care unit (CCU). Al-Wanda Teaching Hospital, Dents, Libya and 28 normal controls (age range: 34-76 'wars: sew 17 males, II females) were included in the souk daring the period of February to A81, 2000. Blood samples were collected within twenty four hours of AM/ and subjected to routine haematological. biochemical (cardiac enzymes) and special biochemical (vitamin E, investigations. Blood samples from the controls were also subjected to the same investigations. Risk factors parcicularly smoking (Si), hypertension (HMO and diabetes mellitus (DM) were also noted. Semis levels of vitamin E. HOL-C were significantly lower in patients compared to controls, 'Mile serum levels of TCh, TGs and LDL-C were significantly higher hi patients. Significant proportion of the patients had lower plasma vitamin S and HDL-C levels. while serum TCh and LDL-C. but not TGs levels were higher in significant proportion of the patient. Plumb: E kiwis in the subjects and in three sabgroups of patients correlated negatimly nvitb TCh levels. Similar negative correlations in the whole group and subgroups ofpatients were also observed between vitamin E and LDL-C levels. A positive my-elation was observed between To, and LDL-C levels M the subjects as well as in all the subgroups. The data showed that the antioxidant vitamin 5, lipids and lipoproteins are closely associated with each other, and control of one might in ike,. the others. These also stressed the need for the control of both dietary intakes and onus lipids an and TGs) in order to have elevated antioxidants and HDL-C kiwis and lower LDL-C tem(' all of which are beneficial in protecting against AML.


PLoS ONE ◽  
2017 ◽  
Vol 12 (9) ◽  
pp. e0184599
Author(s):  
Miho Sato ◽  
Deogratias Maufi ◽  
Upendo John Mwingira ◽  
Melkizedeck T. Leshabari ◽  
Mayumi Ohnishi ◽  
...  

2015 ◽  
Vol 72 (2) ◽  
pp. 226-237 ◽  
Author(s):  
Pasan Samarasin ◽  
Charles K. Minns ◽  
Brian J. Shuter ◽  
William M. Tonn ◽  
Michael D. Rennie

Biodiversity in northern Canada (north of 60°N latitude) is threatened, primarily by increasing resource exploitation and by climate change. Unfortunately, we have relatively limited knowledge of aquatic biodiversity for this region, making it difficult to develop suitable policies to manage these threats. Here we describe, quantify, and test hypotheses related to fish biodiversity and biomass in 37 lakes in a diamond mining district (the Barrenlands) in the Northwest Territories, Canada (64°N, 110°W). To estimate species richness and biomass of fish, we took advantage of exhaustive sampling and monitoring surveys conducted in the region and compared our northern estimates against estimates from southern Canadian lakes. We found that most of the 37 northern lakes contained two to four species, with the largest lake containing eight species. Salmonids dominated this system, with lake trout (Salvelinus namaycush) being the dominant species in abundance and biomass. Comparative analysis with similar-sized southern Canadian lakes showed no significant difference in the slopes of species richness versus lake area curves. Surprisingly, total fish biomass distributions for northern, Barrenlands lakes were also similar to southern, Ontario lakes. Overall, our results suggest that Barrenlands lakes are important natural resources of Canada that should be conserved for the future. Under anticipated scenarios of climate change, these lakes may represent important refugia for coldwater fishes (e.g., lake trout) as habitats at the southern edges of their ranges become more limiting.


2016 ◽  
Vol 12 (33) ◽  
pp. 319
Author(s):  
Doumbia Mohamed

In Côte d’Ivoire, 15 % of maternal deaths are related to illegal abortions. Despite the known consequences, abortion practice is increasing more and more in a restrictive legislative context. Few formal studies and national statistics on the phenomenon exist, much less at the level of precarious slums of Abidjan. This article is a contribution to the understanding of abortion practice in the unprivileged urban context of Yopougon in Abidjan. It aims to analyze the logics and conditions of abortion in the precarious slums of Yopougon. A survey of a sample of 309 women aged 15 to 49 years, living in union in six precarious slums and, an investigation in three public health facilities and five private clinics and among traditional healers were conducted. Results indicate an overall prevalence of 11%. Women who aborted are generally young (85.3%), with no education (35.30%) or primary level of education (32.35%). Proportion of women who aborted increase with parity up to three children and decreases from the fourth child. The lack of financial resources (79.41%) and the fear and stigma (47.05%) are the main reasons of abortion. The majority of abortions took place in private clinics (58.82%).


2019 ◽  
Author(s):  
Leonard O. Ajah ◽  
Fidelis A. Onu ◽  
Oliver C. Ogbuinya ◽  
Monique I. Ajah ◽  
Benjamin C. Ozumba ◽  
...  

AbstractBackgroundLow utilization of health facilities for delivery by pregnant women poses a public health challenge in Nigeria.AimTo determine the factors that influence the choice of birth place among antenatal clinic attendees.MethodologyThis was a cross-sectional study of the eligible antenatal clinic attendees at Mater Misericordiae Hospital, Afikpo and Saint Vincent Hospital, Ndubia in Ebonyi State from February 1, 2016 to June 30, 2016. Analysis was done using EPI Info 7.21 software (CDC Atlanta Georgia).ResultsA total of 397(99.3%) completely filled questionnaires were collated and analysed. Approximately 71% of the health facilities closest to the respondents had maternity services. It took at least 1 hour for 80.9% of the respondents to access health facilities with maternity services. Most (60.2%) of the respondents had antenatal care attendance and majority of them did so at public hospitals. Approximately 43.8% of the respondents were delivered by the skilled birth attendants. The common determinants of birth place were nearness of the health facilities, familiarity of healthcare providers, improved services, sudden labour onset and cost. Also 61.7% of the respondents chose to deliver in public health facilities due to favourable reasons but this could be hampered by the rudeness of some healthcare providers at such facilities. A significant proportion of private health facilities had unskilled manpower and shortage of drugs.ConclusionA greater proportion of women will prefer to deliver in health facilities. However there are barriers to utilization of these facilities hence the need for reversal of this ugly trend.


2011 ◽  
Vol 6 (01) ◽  
pp. 13-19 ◽  
Author(s):  
Solomon A Yimer ◽  
Carol Holm-Hansen ◽  
Gunnar Bjune

Introduction:  Ethiopia has a growing private health sector. In recent years, the directly observed treatment short course (DOTS) strategy was initiated in selected private health facilities in the country. The objective of the present study was to assess knowledge and practice of private practitioners in tuberculosis (TB) control in Amhara Region, Ethiopia.Methodology: An institution-based cross-sectional study was conducted among 112 private practitioners selected from all private health facilities in the region. The study was conducted between May and August 2008 and data was collected using a semi-structured questionnaire. Group differences were analyzed using the chi-square test.Results: Fifty-nine (52.7%) of the private practitioners suspected TB in patients with three weeks' duration of cough. Only 37 (33.0%) of the private practitioners were able to precisely list the correct treatment regimens for all categories as recommended in the National Tuberculosis and Leprosy Control Program guidelines. The correct frequency of TB treatment monitoring was provided by 44 (50%) of the respondents.  Overall 44 (39.3%) of the private practitioners did not have satisfactory knowledge about the directly observed treatment short course (DOTS) strategy. Those who attended DOTS training during the two years prior to the survey were more likely to have satisfactory knowledge compared to those who did not receive training (OR 4.45, 95% CI: 1.33, 14.87, p < 0.02). Conclusion: A significant proportion of private practitioners did not have satisfactory knowledge and practice about DOTS. The provision of regular DOTS refresher courses improves TB management for patients in the region.


2018 ◽  
Vol 5 (4) ◽  
pp. 1162 ◽  
Author(s):  
Anne M. Pertet ◽  
Dan Kaseje ◽  
Careena O. Odawa ◽  
Jackline Ochieng ◽  
Lydia Kirika ◽  
...  

Background: Children from nomadic pastoralist communities might not receive all the recommended doses of vaccines at age-appropriate times due to limited access to immunization services.  Skipped, delayed or missed vaccination doses result in under vaccination which in turn make children vulnerable to preventable diseases.  The purpose of present study was to establish completion timeliness and under-vaccination of all the recommended childhood vaccinations in a nomadic pastoralist community.Methods: Authors used a cluster sampling technique to identify children aged 0 to 24 months at the household level.  Vaccine completion was the accumulation of the required number of doses by infants irrespective of the timing. Timeliness was vaccines administered within the recommended age range. Under vaccination was the sum total of days a delayed vaccine was given after the recommended age range.Results: Completion of all individual antigens did not meet the target of 90%. The mean number of days a child remained under-vaccinated in days was: OPV0, 20 days; BCG, 39 days; measles vaccine, 47 days; PVC3, 121 days; pentavalent, 117 days, and rotavirus, 103 days.  Approximately 42% were severely under-vaccinated for more than six months. Vaccine-specific under-vaccination of more than six months was:  pentavalent 3, 20%; PCV 3, 14%; OPV 3, 9.5%; BCG, 3%, and measles vaccine 20%. Overall children remained under-vaccinated for 185 days.Conclusions: A significant proportion of children remained under vaccinated for extended periods leaving them at risk during a vulnerable period of their life.


2016 ◽  
Vol 3 (2) ◽  
pp. 112
Author(s):  
Unstain N. W. J. Rembet ◽  
Adnan S. Wantasen

For the management activity of coastal area, especially coral reefs, need basic data about economic condition of the coral reefs. Therefore, to manage the ecosystem of coral reefs in Bahoi Village, need an analysis act of economic condition. Whereas, for the economic values, analyze base on direct use of the society. Total economic values of the coral reefs in Bahoi Village, analyze only from the direct use. At the moment its about Rp.2.420.130.000/year. This values is the acumulation from the direct use of fisheries (coral fish) about Rp.2.368.980.000/year and the direct use of the tourism about Rp.51.150.000/year. The relation of ecological and economic condition, base on the result of the coefficient values is 0.0887 for coral and 0.2470 for algae, indicated that 1% growth of the coral coverage unit, will raise 8.87% unit of the total fish. Likewise, 1% growth of the algae coverage, will raise 24.70% of the total fish. In other words, every growth of the coral coverage and algae coverage, will raise the total fish. The relation of fish diversity and fishing trip to the fisherman income, the coefficient values is 2.7475 for fish diversity and 1.1693 for fishing trip, indicated that 1% growth of fish diversity fish, will raise 274.75% unit of the fisherman income. Likewise, 1% growth of fishing trip per month, will raise 116.93% unit of the fisherman income. To improve the ecological condition that finally can increase the society income, therefore activity that cause damage to the coral reefs, such as fishing with “bubu” and coral mining, need to be stopped. It’s also need to develop the other benefit of coral reefs, like tourism. Key words : analysis, ekonomic, ekological, coral reff Abstrak   Untuk suatu kegiatan pengelolaan wilayah pesisir khususnya terumbu karang, diperlukan data dasar mengenai nilai ekonomi dari terumbu karang. Oleh sebab itu guna pengelolaan ekosistem terumbu karang di Desa Bahoi perlu dilakukan pengkajian ekonomi. Nilai ekonomi total dari terumbu karang di Desa Bahoi hanya dilihat dari nilai manfaat langsung, yang saat ini memiliki nilai sebesar Rp 2.420.130.000/tahun. Nilai ini merupakan akumulasi dari manfaat langsung perikanan tangkap (ikan karang) sebesar Rp 2.368.980.000/tahun dan manfaat langsung wisata sebesar Rp 51.150.000/tahun. Hubungan kondisi ekologi dan ekonomi dilihat dari nilai koefisien yang diperoleh yaitu 0.0887 untuk karang batu dan 0.2470 untuk algae  menunjukkan bahwa setiap pertambahan 1% dari satuan tutupan karang batu akan diikuti dengan penambahan 8.87% satuan jumlah ikan. Demikian juga dengan penambahan 1% satuan tutupan algae akan dikuti dengan penambahan 24.70% satuan jumlah ikan. Dengan kata lain, setiap penambahan tutupan karang dan tutupan algae akan diikuti dengan peningkatan jumlah ikan. Dalam hubungan keanekaragaman ikan dan trip penangkapan terhadap pendapatan nelayan nilai koefisien yang diperoleh yaitu 2.7475 untuk keanekaragaman ikan dan 1.1693 untuk trip penangkapan, menunjukkan bahwa setiap pertambahan 1% dari satuan keanekaragaman ikan akan diikuti dengan penambahan 274.75% satuan pendapatan nelayan. Demikian juga dengan penambahan 1% satuan jumlah trip per bulan akan dikuti dengan penambahan 116.93% satuan pendapatan nelayan. Untuk meningkatkan kondisi ekologi, yang pada akhirnya akan meningkatkan penghasilan masyarakat, maka kegiatan yang mengakibatkan rusaknya terumbu karang seperti penangkapan ikan dengan bubu dan penambangan karang harus dihentikan, serta perlu dikembangkannya manfaat lain terumbu karang seperti pariwisata yang sangat potensial untuk dikembangkan di wilayah ini. Kata-kata kunci : kajian, ekonomi, ekologi, terumbu karang   1 Dibiayai oleh Direktorat Pendidikan Tinggi dalam program PENPRINAS MP3EI 2015-2016 2 Staf pengajar pada Fakultas Perikanan dan Ilmu Kelautan UNSRAT


Author(s):  
I. Simonovski ◽  
L. Cizelj

Material ageing and fatigue effects play a significant role in safe operation of nuclear power plants. Particular issues are the initialization and propagation of microstructurally small cracks which can represent a significant proportion of a component’s life time. These cracks are still not well understood, one of the reason being that a number of microstructural features have a significant influence on such cracks: crystallographic orientations of grains, grain boundaries, inclusions, voids, material phases, etc. Microstructural features away from the crack have smaller effect on the crack tip parameters. Crack length also plays a role. For a long crack the influence of the surrounding microstructural features will be smaller than for a small crack. A crack of sufficient length can be modeled using classical fracture mechanics methods. The question is when do we reach this point? To try to answer this question we create a model containing a large number of randomly sized, shaped and oriented grains with a crack inserted into a surface grain. Random grain structure is modelled using a given Voronoi tessellation. We then extend the crack up to 7 grains in length and estimate the standard deviation of crack tip opening displacements (CTOD) due to the random crystallographic orientations of the grains surrounding the crack. To account for the deformation mechanism at the grain size scale anisotropic elasticity and crystal plasticity constitutive models are employed. We show that even at crack length equivalent to 7 grains the standard deviation of the crack tip opening displacements due to the surrounding crystallographic orientations is still 7.3% and that from engineering point of view a crack with length of less than 10 average grain sizes can not be taken as independent of the surrounding microstructural features.


Sign in / Sign up

Export Citation Format

Share Document