scholarly journals Morphometric study of banded gourami (Colisa fasciata) in Jessore, Bangladesh

2016 ◽  
Vol 2 (1) ◽  
pp. 113-120
Author(s):  
Sharmin Akter ◽  
Md Farid Uz Zaman ◽  
Md Hasan Uj Jaman ◽  
Iren Nahar Sithi ◽  
Dilruba Yesmin ◽  
...  
Keyword(s):  
Sex Ratio ◽  
Fishery Management ◽  
Monsoon Season ◽  
B Value ◽  
Morphometric Study ◽  
Random Samples ◽  
Significant Difference ◽  
Mean Size ◽  
The Relationship ◽  
Group Distribution

Population morphometry including population demography, size group distribution, length weight relationship and sex ratio of an important freshwater fish, Colisafasciata was studied which collected fromJessore and Jhenaidah districts in Bangladesh during May, 2014 to April, 2015. Random samples of 201 individuals (108males and 93 females) were collected from different fish markets in Jessore (Monirampur, Borobazar, Chowgasa) and Jhenaidah (Mohespur, Barobazar, Kotchandpur) districst. The mean size of the specimen was recorded 65.08 ±14.32 mm in length and 7.43 ±3.09 g in body weight. Females were found little smaller than males. The specimens were larger in winter than summer and monsoon season. But in monsoon season the females were larger than males. The maximum length of the specimen collected from Jhenaidah district was smaller compare to the specimen of Jessore district. Most of the population (29%) was observed under 55-64 mm size class. Linear relationship was obtained between the log length (mm) and log weight (g) of the species in respects of sexes, seasons, and districts. The allometric coefficient ‘b’ of the relationship indicated negative allometric growth of the species as ‘b’ value was less than 3. The overall sex ratio (male: female=1:0.86)showed significant difference from the expected value 1:1. Overall males showed non-significant over females (?2 =1.119) in all season of both districts but in November males showed the significant (P<0.01) dominance over females. However, the findings of the present study have helped us to understand more about the species is the prerequisites in fishery management strategy and culture system.Asian J. Med. Biol. Res. March 2016, 2(1): 113-120

Fecundity and Gonado-somatic Index of Trichiurus lepturus (Linnaeus, 1758) Along the Zamboanga del Norte Coast

2018 ◽  
Vol 6 (7) ◽  
pp. 120
Author(s):  
Ma. Dulce C. Guillena
Keyword(s):  
Sex Ratio ◽  
Stock Assessment ◽  
Chi Square ◽  
Moon Phases ◽  
Ovary Weight ◽  
Moment Coefficient ◽  
Trichiurus Lepturus ◽  
Significant Difference ◽  
The Relationship ◽  
Somatic Index

Gonado-somatic index and fecundity are tools for measuring the sexual maturity and ability of animals to reproduce.  This study investigates the reproduction of Trichiurus lepturus. Specifically, this aimed to determine the sex ratio, the GSI, the relationship between fecundity and total length, fecundity and total weight, fecundity and ovary weight. The Descriptive Method of research was used.  Percentage and chi-square was utilized in determining the percentage of occurrence and sex ratio respectively.   Pearson r Product Moment Coefficient of Correlation was used to determine the relationships of the parameters. The study revealed that females outnumbered males and the sex ratio for different month showed significant difference.  Spawning season was observed to occur in November and December as revealed in its GSI values and it synchronized with the full and new moon phases.  Fecundity is positively correlated with body weight, body size, and ovary weight where ovary weight is observed to be the best index for fecundity.  The results of this study could be used further for formal stock assessment of cutlassfish fishery.

scholarly journals Sex Ratio and Growth Pattern of Coconut Crabs Birgus latro (Crustacea, Decapoda, Cianobitidae) in North Moluccas Province, Indonesia

Omni-Akuatika ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 1
Author(s):  
Rugaya Serosero ◽  
Sulistiono Sulistiono ◽  
Nurlisa A. Butet ◽  
Etty Riani
Keyword(s):  
Body Weight ◽  
Sex Ratio ◽  
Growth Pattern ◽  
B Value ◽  
Strongly Correlated ◽  
Thorax Length ◽  
Large Size ◽  
Cephalothorax Length ◽  
Relationship Of ◽  
The Relationship

Coconut crab (Birgus latro) is a crustacean that has a large size until four kilograms. The study  aimed to analyze sex ratio and growth pattern including the relationship of thorax length - body weight, thorax width - body weight and cephalothorax length plus rostrum - body weight in Daeo (Morotai Island), Laigoma (South Halmahera District) and Fitako (North Halmahera District). The sex ratio was determined using χ2 test and the growth pattern was tested by the b value through t test. The results showed sex ratio of 1: 0.9 in Daeo (n = 581), 1: 0.6 in Laigoma (n = 24), and 1: 2 in Fitako (n = 31). The relationship of thorax length, thorax width and cephalothorax length plus rostrum with body weight were strongly correlated (R2> 70%). The growth pattern of coconut crab in Daeo was negative allometric, while in Laigoma and Fitako were negative allometric and isometric.

Socio-economic factors and the sex ratio at birth

1971 ◽  
Vol 3 (1) ◽  
pp. 23-42 ◽  
Author(s):  
Michael S. Teitelbaum ◽  
Nathan Mantel
Keyword(s):  
Sex Ratio ◽  
Birth Order ◽  
Economic Status ◽  
Economic Effect ◽  
Economic Variables ◽  
Socio Economic Status ◽  
Significant Difference ◽  
Study Population ◽  
Socio Economic Variables ◽  
The Relationship

Using a large special study population and refined indicators of socio-economic status, the relationship of the live birth sex ratio to socio economic variables is examined. The analyses provide control for the possible confounding effects of race and birth order.The sex ratio is shown to be significantly and positively associated with socio-economic variables. The relationship is not linear, however, but instead is characterized by an apparent ‘diminishing returns’ curve. The major increase in sex ratio is detected as socio-economic status increases from low to moderate. No significant change occurs between moderate and higher socio-economic levels.Even after controlling for the significant socio-economic effect, the analyses detect a significant difference between the sex ratios of Whites on the one hand and Negroes and Puerto Ricans on the other.No significant association between birth order and the sex ratio can be detected in the study population.

scholarly journals Heightened bronchial hyperresponsiveness in the absence of heightened atopy in children with current wheezing and low-income status.

Thorax ◽  
2007 ◽  
Author(s):  
Javier Mallol ◽  
Jose A. Castro-Rodriguez ◽  
Eliana Cortez ◽  
Viviana Aguirre ◽  
Pedro Aguilar ◽  
...  
Keyword(s):  
Pulmonary Function ◽  
Low Income ◽  
Challenge Test ◽  
Bronchial Hyperresponsiveness ◽  
Significant Risk ◽  
Prick Test ◽  
Income Status ◽  
Random Samples ◽  
Significant Difference ◽  
The Relationship

Background: Although global studies as ISAAC have provided with valuable data on the prevalence of asthma in children of Latin America, there is very few information on the relationship between asthma symptoms, pulmonary function, bronchial hyperresponsiveness and atopy in the region. Methods: This study examined the relationship between self-reported wheezing in the last 12 months, pulmonary function, airway responsiveness and atopy in children from a low-income population neighborhood in Santiago, Chile. Two random samples (100 each) of children aged 13-14 years who participated in ISAAC Phase One were selected according to whether they have reported or not, wheezing in the last 12 months. Spirometry, methacholine bronchial challenge test and prick test were performed in all individuals. Results: Children who reported current wheezing had significantly higher bronchial hyperresponsiveness (BHR) to methacholine as compared to those without wheezing (71.6% vs.52.6%, respectively; p=0.007,) and no significant difference was found in FEV1 (116.7„b12.3% vs. 120.3„b14.5%, respectively, p=0.11). The prevalence of atopy was not significantly different between those children who reported wheezing as compared to those who did not (44.2% vs. 42.3%; respectively, p=0.89). Multiple regression analysis showed that only BHR to methacholine (OR 2.72, 95% CI: 1.25-4.13, p=0.01) and maternal asthma (OR 3.1, 95%CI 1.2-8.3, p=0.03) were significant risk factors for current wheezing. Conclusions: Our results support previous findings suggesting that in adolescents from unprivileged populations, self-reported current wheezing is related to BHR but not to atopy.

scholarly journals Investigation on Some Biological Aspects of Nile Tilapia, Oreochromis niloticus (L. 1758) from Khashm El-Girba Fish Market, Sudan: Length Weight Relationship, Condition Factor and Sex Ratio

2020 ◽  
pp. 20-26
Author(s):  
Mutasim Yousif Mohamed Abdalla ◽  
Ahmed Abu Zaid Ahmed ◽  
Moatez Mohammed Elhassan
Keyword(s):  
Sex Ratio ◽  
Oreochromis Niloticus ◽  
Condition Factor ◽  
B Value ◽  
Economic Importance ◽  
Allometric Growth ◽  
Growth Coefficient ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Biological Aspects ◽  
The Relationship

The present study was carried out to investigate some aspects of the biology of Oreochromis niloticus, it has ecological and economic importance, found in Khashm El-Girba market; here, we describe the length-weight relationships, condition factors and sex ratio of O. niloticus.  A total of 525 specimens were collected from August to November 2016. This study indicated that; the regression of length against weight was computed from the relationship W= a Lb; growth coefficient (b) value 2.880 ±0.430 less than 3, which indicate have negative allometric growth. The condition factors (K) is 3.866 ± 0.027; While the sex ratio was (M: F) 1:0.98.

A PRELUDE ON THE BIOLOGY OF PUNTIUS AMPHIBIUS

2017 ◽  
Vol 4 (1) ◽  
pp. 69-72
Author(s):  
Munisha Murali S ◽  
Sheeba S
Keyword(s):  
Sex Ratio ◽  
Feeding Habits ◽  
Monsoon Season ◽  
Gut Content ◽  
Significant Difference ◽  
Active Feeding ◽  
Food And Feeding ◽  
Males And Females ◽  
Relationship Of ◽  
Somatic Index

Knowledge on fish biology is essential for improving aquaculture. The present study was focused on the biology of Puntiusamphibius. The fishes were collected from a freshwater body in parlance known as “Arappa”, located in Thalikulam at Thrissur district in Kerala. This water body is in the vicinity of the sea anddebouches into the marine during monsoon season. In the present investigation 106 fishes were collected during March to August 2006. The study revealed that there was no significant difference observed among the length weight relationship of males and females. Composition of gut content showed that it is a selectivefeeder of Bacillariophyceae and a pronounced omnivore. The gastro-somatic index of female and male was high during May indicating the active feeding during breeding.The sex ratio between males and females was variable and female dominated over males. The fecundity of fish was proportional to the weight of the ovary. Gonado-somatic index was comparatively high during spawning seasons. This is a preliminary lesson on the reproductive biology and certain distinctive characters such as length-weight and food and feeding habits of Puntius amphibius.

scholarly journals Length-Weight Relationship, Condition Factor and Feeding Habit of Fishes from Mangrove of Santubong Estuary, Sarawak, Malaysia

2021 ◽  
Vol 11 (2) ◽  
pp. 10-18
Author(s):  
Farah Akmal Idrus ◽  
Fazimah Aziz ◽  
Adriana Christopher Lee
Keyword(s):  
Condition Factor ◽  
Feeding Habits ◽  
Monsoon Season ◽  
B Value ◽  
Feeding Habit ◽  
Food Items ◽  
Weight Relationship ◽  
Significant Difference ◽  
Fish Samples ◽  
Study Species

Length-weight relationship (LWR), condition factor (K) and feeding habits of Coilia dussumieri, Nemapteryx nenga and Nibea soldado from Santubong Estuary, Sarawak, Malaysia were reported in the present study. The sampling was conducted during the non-monsoon season and monsoon season from April to November 2017 at Buntal, Penambir and Demak rivers using three-layered gillnets. A total of 182 fish samples were caught and measured for the total length and body weight. Then, the data were analysed by the equations for LWR and K. The feeding behaviour analysis was carried out using Relative Gut Index (RGI) and Frequency of Food Occurrence method. The log-transformed regression showed that most of the fishes exhibited negative allometric. K showed a significant difference between seasons. The RGI values of the fishes showed that they were carnivorous. The highest frequency of food occurrence in both seasons was gastropods (94-95 %) and the food items were found to be more variable during monsoon season (gastropods insect, worms, fish, asteroidea, phytoplankton and bivalve). The b value is an exponent to measure the growth pattern of fish and in this study, the b values were in the expected range of 2.5-3.5 and not affected by seasonal variation. The K values suggesting that most of the species were surviving well in the river and was influenced by seasonal change. The RGI and frequency of food occurrence showed that all fish in this study species were carnivorous with more variability in food was observed during the monsoon season. The data of this study are important for a sustainable fisheries management in this area.

scholarly journals Dynamics of CT visible pleural effusion in patients with pulmonary infarction

2018 ◽  
Vol 52 (3) ◽  
pp. 245-249
Author(s):  
Igor Kocijancic ◽  
Jernej Vidmar ◽  
Marko Kastelic
Keyword(s):  
Pulmonary Embolism ◽  
Pleural Effusion ◽  
Time Course ◽  
Clinical Symptoms ◽  
Significant Negative Correlation ◽  
Pulmonary Infarction ◽  
Significant Difference ◽  
Mean Size ◽  
The Mean ◽  
The Relationship

Abstract Background Pleural effusion remains largely unexplored in patients with pulmonary embolism and concurrent pulmonary infarction. The aim of the study was to investigate the relationship between the size of pulmonary infarction and pleural effusion as well as the time course of pleural effusion in patients with pulmonary infarction. Patients and methods Data from 103 patients with pulmonary infarction was retrospectively analysed along with patient comorbidities, size of pulmonary infarction, presence and size of pleural effusion with the time between the onset of clinical symptoms of pulmonary infarction and CT study. Results Assessment of possible correlations between the size of pulmonary infarction and age revealed a significant negative correlation. There was a highly significant difference (p = 0.005) in the mean size of pulmonary infarction in patients with effusion (34.5 cm3) compared to those without it (14.3 cm3), but the size of the effusion had no correlation with the size of pulmonary infarction. The size of the effusion peaked between 4th–5th day after the onset of clinical symptoms of pulmonary infarction. In the first 5 days after the onset of clinical symptoms of pulmonary infarction a significant correlation was found between the size of the effusion and time with approximation of 1.3 mm/12 h. Conclusions The data shows that patients with a pleural effusion are more likely to have a larger pulmonary infarction than those without it. If present, the effusion can be expected to increase in a relatively slow linear fashion in the first 5 days after the onset of clinical symptoms of pulmonary infarction.

Relationship between Thyroglobulin and Tumor Detectabilily with Thallium-201 in Differentiated Thyroid Cancer

2000 ◽  
Vol 39 (01) ◽  
pp. 10-15 ◽  
Author(s):  
S. P. Müller ◽  
Ch. Reiners ◽  
A. Bockisch ◽  
Katja Brandt-Mainz
Keyword(s):  
Thyroid Cancer ◽  
Differentiated Thyroid Cancer ◽  
Roc Analysis ◽  
Tsh Suppression ◽  
Significant Difference ◽  
Test Specificity ◽  
The Relationship ◽  
Tumor Scintigraphy ◽  
Tsh Stimulation

Summary Aim: Tumor scintigraphy with 201-TICI is an established diagnostic method in the follow-up of differentiated thyroid cancer. We investigated the relationship between thyroglobulin (Tg) level and tumor detectability. Subject and methods: We analyzed the scans of 122 patients (66 patients with proven tumor). The patient population was divided into groups with Tg above (N = 33) and below (N = 33) 5 ng/ml under TSH suppression or above (N = 33) and below (N = 33) 50 ng/ml under TSH stimulation. Tumor detectability was compared by ROC-analysis (True-Positive-Fraction test, specificity 90%). Results: There was no significant difference (sensitivity 75% versus 64%; p = 0.55) for patients above and below 5 ng/ml under TSH suppression and a just significant difference (sensitivity 80% versus 58%; p = 0.04) for patients above and below 50 ng/ml under TSH stimulation. In 18 patients from our sample with tumor, Tg under TSH suppression was negative, but 201-TICI-scan was able to detect tumor in 12 patients. Conclusion: Our results demonstrate only a moderate dependence of tumor detectability on Tg level, probably without significant clinical relevance. Even in patients with slight Tg elevation 201-TICI scintigraphy is justified.

Comparative study of Clinical Characteristics in Patients with Mild and Severe Reflux Esophagitis

2020 ◽  
Vol 66 (1) ◽  
pp. 19-22
Author(s):  
Melania Macarie ◽  
Simona Maria Bataga ◽  
Monica Pantea ◽  
Razvan Opaschi ◽  
Simona Mocan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Sex Ratio ◽  
Hiatal Hernia ◽  
Statistical Significance ◽  
Erosive Esophagitis ◽  
Male Gender ◽  
Consecutive Series ◽  
Study Group ◽  
Entire Study ◽  
Significant Difference

AbstractObjective: This study aims to determine the correlation between risk factors and erosive esophagitis development.Methods: We conducted a retrospective observational study on a consecutive series of 19.672 patients who underwent upper gastrointestinal endoscopy between 01.01.2011-31.12.2017. A total of 3005 patients, diagnosed with erosive esophagitis, were included in the present study and stratified according to Los Angeles classification.Results: During the studied period we found 3005 patients with erosive esophagitis, sex ratio male to female was 1.3/1, the most common forms of esophagitis being grade A and B: 74.54% patients with esophagitis grade A, 14.80% patients with grade B; 5.29% patients were with grade C and 5.35% patients with esophagitis grade D. In severe esophagitis the male predominance was more prevalent (249 males, 71 female), with a sex ratio 3.50/1. The correlation of male gender with severe esophagitis was highly statistically significant (p < 0.0001, OR 2.97; 95% CI 2.25-3.91). Hiatal hernia was diagnosed in 1171 patients, the presence of large hiatal hernias, being an important predictor, with statistical significance (p < 0.0001, OR 3.41; 95% CI 2.22-5.21), for severe esophagitis development. Incidence of Helicobacter pylori infection was 11.51%, in the entire study group, with no statistical significant difference between patients with mild or severe esophagitis (12.02% vs 7.18%).Conclusion: Erosive esophagitis is a frequent disease, the most common forms being grade A and B. Male gender and the presence of hiatal hernia are the most important risk factors for erosive esophagitis development, in our study group.

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