Reproduction and growth of the spiny lebbeid shrimp, Lebbeus groenlandicus (Fabricius, 1775) (Caridea, Hippolytidae) in the East Sea of Korea

Crustaceana ◽  
2014 ◽  
Vol 87 (11-12) ◽  
pp. 1430-1446 ◽  
Author(s):  
Ho Jin Bae ◽  
Chul-Woong Oh
Keyword(s):  
Gonadosomatic Index ◽  
Growth Function ◽  
East Sea ◽  
Breeding Period ◽  
Female Ratio ◽  
Von Bertalanffy Growth Function ◽  
Significant Difference ◽  
Male Female Ratio ◽  
Regression Slopes ◽  
Egg Stages

Reproduction and growth of the spiny lebbeid shrimp, Lebbeus groenlandicus (Fabricius, 1775), were investigated based on samples in the East Sea of Korea [= Sea of Japan], from January 2012 to April 2013. We collected 2964 shrimp samples during the study period, which included significantly more females than males (male : female ratio, 1.0 : 1.17). The females were generally larger than the males, and significant differences in the linear-regression slopes of carapace length (CL) versus body weight between the sexes indicate sex-specific differences in allometric growth. The gonadosomatic index (GSI) varied monthly, reaching a maximum in November 2012 (10.28) and a minimum in March 2013 (2.15). The proportion of ovigerous females varied from month to month. The highest values of the GSI coincided with the breeding period, and there was a significant difference between the mean GSI of females with non-eyed and those with eyed eggs, indicating that L. groenlandicus is a consecutive breeder. There was a significant correlation between CL and the number of eggs (EN) in the early egg stages. There was also a significant difference in the slopes of the regressions of CL versus EN between females carrying non-eyed and eyed egg stages. Based on the dry weights in the early egg stages, reproductive output was determined to be 0.18 ± 0.006. The Von Bertalanffy growth function parameters were CL∞ = 38.80 mm, year−1, , and WP = 0.4 for males, and CL∞ = 43.64 mm, year−1, , and WP = 0.6 for females. The growth performance index () was 2.86 for males and 2.89 for females.

Reproductive traits of the lake prawn Palaemon paucidens De Haan, 1844 (Decapoda, Palaemonidae), from Goesan Lake, South Korea

Crustaceana ◽  
2013 ◽  
Vol 86 (10) ◽  
pp. 1191-1205
Author(s):  
Indah Puspitasari ◽  
Chul Woong Oh ◽  
Wan Ok Lee
Keyword(s):  
Fisheries Management ◽  
Carapace Length ◽  
Gonadosomatic Index ◽  
Reproductive Traits ◽  
Biological Information ◽  
Breeding Period ◽  
Life Strategy ◽  
Strategy Adaptation ◽  
Significant Difference ◽  
Egg Stages

The reproductive biology of Palaemon paucidens De Haan, 1844, from Goesan Lake, Korea, was investigated during the period May 2010-October 2011. The proportion of females was significantly greater than that of males (female : male ratio, 1 : 0.7). The gonadosomatic index (GSI) varied monthly, reaching a maximum in May and a minimum in September. Monthly variations in the proportions of ovigerous females showed peaks in April and May. The highest values of the GSI coincided with the breeding period of P. paucidens (April-August). There was no significant difference between the mean GSI of females with non-eyed and eyed eggs, indicating that P. paucidens is a non-consecutive breeder. There was a significant correlation between the number of eggs and the carapace length at early egg stages. There was no significant difference in the intercepts of the regressions of the number of eggs versus carapace length between females carrying non-eyed and eyed egg stages, indicating that there was no brood loss during the incubation period. Egg volume increased significantly (by 75.6%) as eggs developed from the non-eyed to the eyed stage. Reproductive output was 0.20 ± 0.04, based on dry weights in early egg stages. The results were compared with other studies of P. paucidens in Sukdang Lake and other species of palaemonids in different habitats. This comparison reveals intra- and inter-specific variations in reproductive traits of palaemonid shrimp. The phenomenon is suggested to be a result of adaptations to different environmental conditions. Variation in reproductive traits within the same species reflects a different life strategy adaptation in species that will require a different approach in fisheries management. Information on intra- and inter-specific variation in reproductive traits is important to be used as one basic issue of biological information to support an effective fisheries management of P. paucidens, which has been locally exploited in Korea and Japan.

scholarly journals Impact of fifteen days fishing ban in the major spawning grounds of hilsa (Tenualosa ilisha Hamilton 1822) on its spawning success

2015 ◽  
Vol 2 (3) ◽  
pp. 491-497 ◽  
Author(s):  
Md Anisur Rahman ◽  
Flura ◽  
Tayfa Ahmed ◽  
Md Mehedi Hasan Pramanik ◽  
Mohammad Ashraful Alam
Keyword(s):  
Positive Impact ◽  
Breeding Period ◽  
Spawning Grounds ◽  
Female Ratio ◽  
Spawning Areas ◽  
Percent Composition ◽  
Male Female Ratio ◽  
Similar Quantity ◽  
The Impact ◽  
Spawning Success

The present study was conducted to assess the impact of fifteen days fishing ban on breeding success of hilsa shad in the major spawning grounds of hilsa in the month of September and October, 2015. The study showed that fishing ban during spawning seasons have significant role in the successful reproduction of hilsa. In and around the spawning grounds among all the captured hilsa, male: female ratio was found 1: 1.86 and percent composition was 35% and 65% respectively. In 2015, percent composition of spent hilsa during major breeding period in the spawning grounds was found 36.60%. The eggs production of hilsa was calculated, in the year 2010, 2011, 2012, 2013, 2014 and 2015 about 336199Kg, 385500Kg, 380400Kg, 447100Kg, 417765Kg and 494365Kg respectively, hilsa eggs could have been produced indicating a positive impact of 15 days fishing ban in the spawning season. Comparatively higher percentages of gravid hilsa were found which were not available in the similar quantity and condition in the fishing ban period in other than spawning areas of hilsa. During the present investigation, fairly higher amount of spent hilsa and juveniles were observed in the spawning grounds. On the other hand, fewer juveniles and spent hilsa were observed in the adjacent areas of the spawning grounds indicating that in comparison to the recent reports there might have little or no changes of the spawning grounds of hilsa occurred. Along with the jatka fry, spawn and fries of other fishes were also found in higher quantity than the previous years and thus it is assumed that 15 days fishing ban also might have positive impact on the successful breeding of other fishes. Overall, the fishing ban was found effective for successful breeding of hilsa.Res. Agric., Livest. Fish.2(3): 491-497, December 2015

scholarly journals Common Eye Diseases in Children in Saudi Arabia (Jazan)

2016 ◽  
Vol 8 ◽  
pp. OED.S39055 ◽  
Author(s):  
Abdulrahman Darraj ◽  
Walid Barakat ◽  
Mona Kenani ◽  
Reem Shajry ◽  
Abdullah Khawaji ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Ocular Trauma ◽  
Eye Diseases ◽  
P Value ◽  
Female Ratio ◽  
Root Cause ◽  
Significant Difference ◽  
Male Female Ratio ◽  
Chi Squared ◽  
The Common

Background The rise in childhood eye diseases has become a matter of concern in Saudi Arabia, and hence a study has been conducted on the residents of Jazan. The aim of the research was to find out the root cause of such issues and provide a solution to prevent such circumstances for it may affect the vision of children. In this study, therefore, we aimed to determine the types of childhood eye diseases in Jazan and to discuss the best ways to prevent them or prevent their effect on the vision of our children. Our institutions are working toward the longevity and welfare of the residents, and healthcare is one of the important aspects in such a field. Methods This is a retrospective review of all patients less than 18 years of age who presented to the pediatric ophthalmology clinic of Prince Mohammed Bin Nasser Hospital, Jazan, between October 2014 and October 2015. The data, collected on 385 cases, included the age at first presentation, sex, clinical diagnosis, refractive error (RE) if present, and whether the child had amblyopia. If the child did not undergo complete ophthalmic examination with cycloplegic refraction, he/she was excluded. All data were collected and analyzed using the software SPSS. A P-value < 0.05 was considered statistically significant. Results We reviewed the files of 385 children, with a male/female ratio of 1.1:1.0. The group aged 0–6 years made up the largest group ( P = 0.01), and the ratio is an expression to define the credibility of the study using a chi-squared test. Strabismus (36.9%), RE (26.5%), ocular trauma (7.5%), infection of cornea and conjunctiva (7.3%), and keratoconus (6.2%) were the most common conditions. There was no significant difference in presentation by age group and sex among children with REs and squint. Trauma was seen more commonly among males and in the group aged 12–18 years. Conclusion In this retrospective study, the focus was on the common childhood eye diseases that were considerably high. Hypermetropia was the predominant RE, which is in contrast to other studies where myopia was more common. However, it is important to promote public education on the significance of early detection of strabismus, REs, and amblyopia and have periodic screening in schools. The discussion of the various issues is aimed at increasing the awareness and building a support for the cause by creating the knowledge base to treat things on time and acknowledging the severity of the issues.

scholarly journals EFECTOS DE LA PESCA SOBRE LA BIOLOGÍA REPRODUCTIVA DE LA LISA MUGIL INCILIS (PISCES: MUGILIDAE) EN LA CIÉNAGA GRANDE DE SANTA MARTA, CARIBE COLOMBIANO

2016 ◽  
Vol 39 (2) ◽  
Author(s):  
Danetcy Mármol Rada ◽  
Efraín Viloria Maestre ◽  
Jacobo Blanco Racedo
Keyword(s):  
Gonadosomatic Index ◽  
Strategy Management ◽  
Female Ratio ◽  
Rainy Period ◽  
Management Measures ◽  
Male Female Ratio ◽  
Fish Catch ◽  
Spawning Time ◽  
Biological Aspects ◽  
Mugil Incilis

The mullet Mugil incilis is one of the most important fish resources in the Ciénaga Grande de Santa Marta. Based on monitoring of fishery statistics collected in the periods 1994-1996 and 2000-2007 and biological aspects of the species between 2006 and 2007, we evaluated fishing effects on the reproductive biology of M. incilis. Fishery statistics revealed that catch and fish size declined with time. Peak spawning was observed to occur between November - December, when the gonadosomatic index and condition factor showed their maximum values, contrasting with water salinity that plunged in the rainy period. Male: female ratio was estimated as 1:3 after a sample of 1954 individuals, and mean maturity size (MMS) calculated as 23.8 cm total length (TL), lower than that previously reported. Mullet represented 30 % of the whole fish catch in the period 1994-2007, and 65 % of the individuals were found below their MMS, mainly caught with cast-nets at spawning time. Lower occurrence of larger fish in the catch seems to be a reasonable explanation for the reduction of MMS. No evidence was found to attribute this decrease to a species strategy. Management measures for this fishery are discussed and suggested.

scholarly journals Analysis of renal lesions in Chinese tuberous sclerosis complex patients with different conditions of TSC1/2 genetic mutations

2020 ◽  
Author(s):  
Wenda Wang ◽  
Yang Zhao ◽  
Xu Wang ◽  
Zhan Wang ◽  
Guoyang Zheng ◽  
...  
Keyword(s):  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Renal Cysts ◽  
Genetic Mutations ◽  
Imaging Evaluation ◽  
Female Ratio ◽  
Renal Lesions ◽  
Significant Difference ◽  
Male Female Ratio ◽  
And Function

Abstract Objective The renal manifestations of tuberous sclerosis complex (TSC) are complicated and various. We’d like to report the information of genetic mutations in TSC patients with renal lesions, and to discuss the relationship between features of renal lesions and genetic mutations, including mutant genes and mutant types. Methods TSC patients with renal lesions who came to Urology Department of our hospital from January 1st, 2015 to January 1st, 2020 were retrospectively analyzed. TSC patients who received next generation sequencing (NGS) of TSC1/2 and imaging examinations were screened out. When familial TSC patients were confirmed, only the probands were included. The patients who had imaging evaluation in our hospital before any treatment for TSC renal angiomyolipomas (AMLs) were also selected for further analysis of relationship between genetic mutations and AML sizes. Results 70 clinically or genetically diagnosed TSC patients with renal lesions were included. The average age was 29.3±8.3 years old. Male-female ratio was 1:1.5. 15 patients (21.4%) were probands of TSC families (3 TSC1 , 10 TSC2 , and 2 NMI). 67 patients (95.8%) had bilateral renal AMLs with one patient had a pathological diagnosis of epithelioid AML ( TSC2 mutation). One patient had multiple renal cysts ( TSC2 mutation), one had renal cell carcinomas (RCCs) ( TSC1 mutation) and one had Wilms tumors ( TSC1 mutation). Among the 70 included patients, 4 patients had TSC1 mutations, 51 had TSC2 mutations, and 15 had no mutation identified (NMI). There was no statistically significant difference between TSC2 mutations and NMI groups (11.4±5.7 vs. 8.0±5.6cm, P = 0.077) when considering AML sizes. There was also no statistically significant difference among AML sizes of patients with TSC2 mutation types of nonsense, missense, frameshift, slipping, and fragment deletion ( P = 0.712). And no statistically significant difference was found between maximus diameters in familial and sporadic patients, either (11.4±5.8 vs. 10.5±5.8, P = 0.663). Conclusions The conditions of TSC genetic mutations will affect type and severity of renal lesions. Other focuses such as protein structure and function need to be studied for renal manifestations. Except for patients with TSC1 and TSC2 genetic mutations, patients with NMI and familial patients are also needed more attention for the pathogenesis of them is still unknown.

scholarly journals The Relationship of Amount of Resection and Time for Recovery of Bell’s Phenomenon after Levator Resection in Congenital Ptosis

2017 ◽  
Vol 11 (1) ◽  
pp. 24-30 ◽  
Author(s):  
Ruchi Goel ◽  
Divya Kishore ◽  
Smriti Nagpal ◽  
Sparshi Jain ◽  
Tushar Agarwal
Keyword(s):  
Care Center ◽  
Tertiary Care ◽  
Close Monitoring ◽  
Female Ratio ◽  
Exact Test ◽  
Significant Difference ◽  
Levator Resection ◽  
Male Female Ratio ◽  
Bell's Phenomenon ◽  
Bell’S Phenomenon

Background: Recovery of Bell`s phenomenon after levator resection is unpredicatable. Delayed recovery can result in vision threatening corneal complications. Aim: To study the variability of Bell’s phenomenon and time taken for its recovery following levator resection for blepharoptosis and to correlate it with the amount of resection. Methods: A prospective observational study was conducted on 32 eyes of 32 patients diagnosed as unilateral simple congenital blepharoptosis who underwent levator resection at a tertiary care center between July 2013 and May 2015. Patients were followed up for 5 months and correction of ptosis, type of Bell`s, duration of Bell`s recovery and complications were noted. Results: The study group ranged from 16-25 years with 15:17 male: female ratio. There were 9 mild, 16 moderate and 7 severe ptosis. Satisfactory correction was achieved in all cases. Good Bell`s recovery occurred in 13 eyes on first post-op day, in 2-14 days in 19 eyes and 28 days in 1 eye. Inverse Bell`s was noted along with lid oedema and ecchymosis in 2 patients. Large resections (23-26mm) were associated with poor Bell`s on the first postoperative day (p=0.027, Fisher`s exact test). However, the duration required for recovery of Bell`s phenomenon did not show any significant difference with the amount of resection. (p=0.248, Mann Whitney test). Larger resections resulted in greater lagophthalmos (correlation=0.830, p<0.0001). Patients with recovery of Bell`s delayed for more than 7 days were associated with greater number of complications (p=0.001 Fisher`s Exact Test). Conclusion: Close monitoring for Bell`s recovery is required following levator resection.

A Clinicopathological Study of Ossifying Fibromas and Comparison between Central and Peripheral Ossifying Fibromas

2012 ◽  
Vol 13 (4) ◽  
pp. 509-514 ◽  
Author(s):  
Santosh Hunasgi ◽  
Vandana Raghunath
Keyword(s):  
Statistical Significance ◽  
Female Ratio ◽  
Histopathological Features ◽  
Significant Difference ◽  
Predominant Cell Type ◽  
Clinicopathological Study ◽  
Male Female Ratio ◽  
The Mean ◽  
Radiographic Changes ◽  
Larger Sample

ABSTRACT Aims and objectives To study the clinical, histological features of peripheral and central ossifying fibromas and also to compare between them. Materials and methods The sample comprised a total 50 cases of ossifying fibromas [25 central ossifying fibromas (COF) and 25 peripheral ossifying fibromas (POF)] inclusive of cemento-ossifying fibromas. Results The mean age is 28.2 years in POF and 24.7 years in COF. The male: female ratio was 1:1.5 in POF and 1:1.8 in COF. The size of the lesions varied from 0.45 to 2.75 cm in cases of POF and in COF, it ranged from 1.25 to 13.5 cm. COF showed more duration (1-8 years) when compared with POF (1-3). Majority of cases of COF showed radiolucent, mixed radiolucent and radiopaque unilocular lesions. The predominant cell type in both POF and COF was a combination of both ovoid and spindle cells. Regarding vascularity it showed mild, moderate and intense vascularity. On comparison of all stromal changes between POF and COF showed no statistically significant difference. Conclusion The clinical parameters and radiographic changes of POF and COF in our study were similar to the previous studies. Histopathological features like type of cells, cellularity and vascularity in POF and COF were similar to previous studies. However, when clinical and histopathological features were compared between POF and COF showed no statistical significance except for site of the lesion. These features signify the behavior of two lesions. Further research on larger sample might give more insights into these lesions. How to cite this article Hunasgi S, Raghunath V. A Clinicopathological Study of Ossifying Fibromas and Comparison between Central and Peripheral Ossifying Fibromas. J Contemp Dent Pract 2012;13(4):509-514.

scholarly journals A comparative study between extracorporeal shock wave lithotripsy and ureterorenoscopic lithotripsy in the management of upper ureteric calculus

2016 ◽  
Vol 18 (3) ◽  
pp. 39
Author(s):  
B Shrestha ◽  
HN Joshi ◽  
BR Malla ◽  
D Gyanwali ◽  
SM Shrestha ◽  
...  
Keyword(s):  
Shock Wave ◽  
Urinary Tract ◽  
Extracorporeal Shock Wave Lithotripsy ◽  
Shock Wave Lithotripsy ◽  
Female Ratio ◽  
Ureteric Calculus ◽  
Extracorporeal Shock Wave ◽  
Significant Difference ◽  
Male Female Ratio ◽  
Tract Infections

Introduction and Objective: A stone in the ureter usually comes from the kidney. Urolithiasis is the third most common disease of the urinary tract which is surpassed only by urinary tract infections and pathologic conditions of prostate. There are some controversies on the effectiveness of extracorporeal shock wave lithotripsy (ESWL) and ureteroscopic lithotripsy (URSL) in ureteral stones. We aim to compare the efficacy of ESWL and URSL in the management of upper ureteric stones in terms of stone clearance.Materials and Methods: This prospective hospital based study included patients with upper ureteric calculus managed with URSL with DJ stenting or ESWL at Dhulikhel Hospital-Kathmandu University Hospital from August 2014 to December 2015. Stone size, stone clearance, number of sittings, complications and need of other procedure were recorded.Results: Total number of patients undergone ESWL was 49 and URSL was 48. There was no difference in male/ female ratio, age and stone diameter between two groups (P>0.05). Total stone-free ratio was 85.71%(42/49) for ESWL and 81.25%(39/48) for URSL, partial fragmentation requiring shift of modality of treatment was 12.24%(6/49) for ESWL and 12.5%(6/48) for URSL, failed procedure was 2.04%(1/49) for ESWL and 6.25%(3/48%) for URSL(P= 0.577).Conclusion: ESWL is as effective as URSL in the management of upper ureteric calculus with no significant difference in age, male/female ratio, stone diameter and stone free ratio

scholarly journals Professionalism among Intern Doctors of Different Medical College Hospitals in Bangladesh

2017 ◽  
Vol 7 (2) ◽  
pp. 17-22
Author(s):  
Syed Golam Samdani ◽  
Tahmina Begum
Keyword(s):  
Professional Competence ◽  
Sampling Technique ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Female Ratio ◽  
Medical College ◽  
Attitude And Practice ◽  
Significant Difference ◽  
Male Female Ratio ◽  
The Status

This descriptive cross-sectional study was conducted to explore the status of professionalism regarding knowledge, attitude and practice among intern doctors of different medical college Hospitals in Bangladesh. Study period was July 2015 June 2016.Sample size was 300 and convenient sampling technique was adopted. Study was carried out among all Bangladeshi intern doctors of 4 governments and 2 non-governments selected medical college Hospitals of Dhaka and outside Dhaka. Total 300 intern doctors responded to a self-administered questionnaire. Male female ratio was almost 1:1. Concept of professionalism and level of knowledge regarding its various aspects are not satisfactory in large extends. But attitude towards most of the major principles of professionalism are as much as positive like USA and UK physicians. However, regarding honesty with patients, one statement like physicians should disclose all significant medical errors to affected patients and/or guardians, only 36.9% agreed with this. Similarly, only 43% agreed the statement of re-certification examination to maintain professional competence. Regarding attitude and practice of major attributes & responsibilities of professionalism there is no significant difference (p>0.05) between male and female intern doctors working in different medical college hospitals; but regarding practice there is a significant difference (p<0.05) among intern doctors working in government and non-government hospitals. This study recommended that institutional agreement should be on a definition, setting expectations & curriculum framework regarding professionalism to increase scope of teaching & learning in our undergraduate & post-graduate students.Bangladesh Journal of Medical Education Vol.7(2) 2016: 17-22

scholarly journals A study of dysnatremia in patients admitted in medical intensive care unit of a tertiary care teaching hospital

2021 ◽  
Vol 8 (2) ◽  
pp. 220
Author(s):  
Mantavya Patel ◽  
Sanjay Kumar Paliwal ◽  
Syed Javed
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Medical Intensive Care Unit ◽  
Tertiary Care ◽  
Female Ratio ◽  
Survival Status ◽  
Icu Stay ◽  
Significant Difference ◽  
Male Female Ratio ◽  
Medical Intensive Care

Background: Both dysnatremia at admission and that acquired in the intensive care unit (ICU) have been shown to have a direct influence on prognosis. The present was planned to study dysnatremia in adult patients admitting in medical intensive care unit (MICU).Methods: The present prospective observational study was conducted on patients admitted in medical ICU over a period of 1 year who developed dysnatremia during ICU stay. Patient’s age, sex, diagnosis at the time of diagnosis, comorbidities, serum sodium levels, risk factors, length of ICU stay, and survival status were noted.Results: Out of total 798 patients during the study period; 207 (25.94%) were found to have hypernatremia and 87 (10.9%) were hyponatremic. In hypernatremic group male/ female ratio was 125/82 and it was 50/37 in hyponatremic group. The mean ICU stay was significantly more in hypernatremic patients (4.76±3.57) compared to hyponatremic group (4.06±2.80). (p˂0.05) Mortality in both hypernatremic patients and hyponatremic patients was found significantly more in hypervolemic group which was 84.38% and 53.84% respectively. (p˂0.05)Conclusions: This study concluded that nowadays hypernatremia is more common with longer ICU stay. In both hypernatremia and hyponatremia mortality was found similar without any significant difference.

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