scholarly journals Distribution of eggs and adults of alaska plaice Pleuronectes quadrituberculatus and flathead sole Hippoglossoides elassodon (Pleuronectidae) in the Pacific waters of Kamchatka

2021 ◽  
Vol 201 (2) ◽  
pp. 400-415
Author(s):  
R. T. Ovcherenko ◽  
D. Ya. Saushkina
Keyword(s):  
Old Age ◽  
Middle Age ◽  
Age Groups ◽  
Biological Parameters ◽  
Young Fish ◽  
Southeastern Kamchatka ◽  
Pacific Waters ◽  
The Pacific ◽  
Embryo Cleavage ◽  
Hippoglossoides Elassodon

Distribution and biological parameters are considered for eggs and adults of two flatfish species on the data of annual surveys conducted on the shelf of southeastern Kamchatka in summer of 2011–2014 and 2016–2019. The eggs of Pleuronectes quadrituberculatus were sampled mostly at the stage of a germinal strip forming, whereas the eggs of Hippoglossoides elassodon were mostly at the stage of embryo cleavage. The main congestions of the eggs were found in the Kronotsky Bay and northern Avachinsky Bay. The adults of both species concentrated mainly in the northern Kronotsky Bay, at Cape Povorotny. Old age groups prevailed in aggregations of P. quadrituberculatus, but middle-age and young fish — in the aggregations of H. elassodon.

Biology and Management of Dogfish Sharks

2009 ◽  
Keyword(s):  
Kuril Islands ◽  
Spiny Dogfish ◽  
Depth Range ◽  
Southeastern Kamchatka ◽  
Pacific Waters ◽  
The Pacific ◽  
Body Weights ◽  
Northern Kuril Islands ◽  
Catch Rates ◽  
The Northern Kuril Islands

Abstract.—Spiny dogfish <em>Squalus acanthias </em>are occasionally caught by bottom trawls in the Pacific waters off the northern Kuril Islands and southeastern Kamchatka. Only 23 specimens were captured during 8 years of commercial and research cruise observations from 1993 to 2000. This species occurred most frequently off the southeastern coast of Kamchatka within a depth range of 200–300 m and a bottom temperature range of 2°–3°C. In the study area, this shark was represented by specimens with total lengths of 54–85 cm (69.2 cm average) and body weights of 1–3 kg (1.8 kg average). Dogfish were captured in the Pacific waters off the northern Kuril Islands and southeastern Kamchatka from July to December. Maximum catch rates occurred in November and were probably related to southward migrations.

scholarly journals Prevalence and comparative likelihood of urinary tract infection (UTI) among female out patients in BSMMU

2013 ◽  
Vol 40 (2) ◽  
pp. 231-239
Author(s):  
Hamida Khanum ◽  
Fahmida Munir ◽  
AZM Shafiullah ◽  
Farhana Muznebin
Keyword(s):  
Escherichia Coli ◽  
Urinary Tract Infection ◽  
Urinary Tract ◽  
Relative Risk ◽  
Tract Infection ◽  
Old Age ◽  
Middle Age ◽  
Age Groups ◽  
Urine Samples ◽  
E Coli

Out of 200 urine samples of female out patients from BSMMU hospital, 128 (64%) cases were detected as Escherichia coli positive, 66.67% of cases in summer and 60% in winter. To compare the risks of E. coli infection in summer and winter and also among different age groups, odd ratio (OR) and relative risk (RR) were used as measures of comparative likelihood. The values of both OR and RR were greater than one when the risk of E. coli infection of adults (16-35) was compared with that of middle age (36-50) and old age (51-70) groups. The adults were always at higher risk of UTI by E. coli, and the livelihood of infection was not equal in summer and winter. DOI: http://dx.doi.org/10.3329/bjz.v40i2.14317 Bangladesh J. Zool. 40(2): 231-239, 2012

scholarly journals Some Rare and Insufficiently Studied Snailfish (Liparidae, Scorpaeniformes, Pisces) in the Pacific Waters off the Northern Kuril Islands and Southeastern Kamchatka, Russia

ISRN Zoology ◽  
2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
A. M. Orlov ◽  
A. M. Tokranov
Keyword(s):  
Juvenile Fish ◽  
Kuril Islands ◽  
Hermit Crabs ◽  
Southeastern Kamchatka ◽  
Pacific Waters ◽  
The Pacific ◽  
Wide Range ◽  
Vertical Distributions ◽  
Northern Kuril Islands ◽  
The Northern Kuril Islands

Spatial and vertical distributions, size-weight compositions, age, and diets of 10 rare or poorly known snailfish (Liparidae) from the Pacific off the southeastern Kamchatka and the northern Kuril Islands are described. The species include blacktip snailfish Careproctus zachirus, Alaska snailfish C. colletti, blacktail snailfish C. melanurus, proboscis snailfish C. simus, falcate snailfish C. cypselurus, big-disc snailfish Squaloliparis dentatus, longtip snailfish Elassodiscus obscurus, slender snailfish Paraliparis grandis, gloved snailfish Palmoliparis beckeri, and stout snailfish Allocareproctus jordani. These species inhabit a wide range of depths. Careproctus melanurus, C. cypselurus, E. obscurus, P. grandis, and C. colletti are the deepest; C. simus and S. dentatus occur mostly between 300 and 600 m; the three other species seldom occur at depths of 150–200 m. The life span of these species is 10–13 years, and specimens of age classes 2–5 constitute the bulk of catches. All except A. jordani are benthophages that eat small crustaceans, shrimps, hermit crabs, and amphipods. A. jordani consumes crustaceans and also polychaete worms, sea snails, octopi, brittle stars, juvenile fish, and fishery offal.

Age-Specific Analysis of Injury; In Between Youth and Old, Late Middle Ages Increases Injury Vulnerability (Preprint)

2020 ◽  
Author(s):  
Hansol Chang ◽  
Ji Young Min ◽  
Dajeong Yoo ◽  
Sung Yeon Hwang ◽  
Hee Yoon ◽  
...  
Keyword(s):  
Emergency Department ◽  
Injury Prevention ◽  
Old Age ◽  
Middle Age ◽  
Age Groups ◽  
Age Group ◽  
Prevention Strategies ◽  
Group 4 ◽  
Group 3 ◽  
Group 1

BACKGROUND Injury is a leading cause of both mortality and moderate and severe disability. Injury is preventable, and there had been many injury prevention strategies in the past. Age is one factor that affects injury characteristics. OBJECTIVE This study aimed to investigate the national prevalence of injury by age groups to probe new injury prevention strategies. METHODS This data was collected retrospectively from the Emergency Department-based Injury In-depth Surveillance (EDIIS) in South Korea, including patient data who visit 25 emergency departments between January 2011 and December 2017. Patients were divided into four groups by age: 18 to 34 years as group 1; 35 to 49 years, group 2; 50 to 64 years, group 3; 65 years and over, group 4. RESULTS A total of 1,221,746 patients were included, and each age group had a different injury pattern. Group 3 injury outcomes and injured body parts are similar to Group 4. This is why old age injury prevention strategies should be devised right from middle age and not after old age. Interestingly, in our study, Group 4 and Group 1 both were unlikely to have worn seatbelt when traffic injury occurred, which is different compared to other country studies. CONCLUSIONS In our study, each age group shows diverse characteristics in the mode of injury, place, time, and outcome and Group3, which represents late middle age, shows increased vulnerability. Therefore, it is imperative that all age groups have their own injury prevention method and more caution is needed in late middle age injury. CLINICALTRIAL This data was collected retrospectively from the Emergency Department-based Injury In-depth Surveillance (EDIIS) in South Korea.This study was approved by the Institutional Review Board (IRB) of Samsung Medical Center, IRB No. 2020-05-042.

Ageing Does Not Affect Ulnar Variance: An Investigation in Taiwan

2008 ◽  
Vol 33 (6) ◽  
pp. 797-799 ◽  
Author(s):  
W. -S. CHEN ◽  
J. -W. WANG
Keyword(s):  
Longitudinal Study ◽  
Old Age ◽  
Middle Age ◽  
Age Groups ◽  
Normal Subjects ◽  
Ulnar Variance ◽  
Group Iii ◽  
Group I ◽  
Student’S T ◽  
Student’S T Test

This paper presents a longitudinal study of the effect of ageing on ulnar variance. Between 1976 and 1985, ulnar variance in 1000 normal adult subjects was measured using the Palmer method. In 1995 to 2002, 17 to 22 years later, the ulnar variance was measured again in 864 of them. They were stratified into three age groups: Group I consisted of 351 subjects of young age (20–39 year-old), Group II of 318 subjects of middle age (40–59 year-old) and group III of 195 subjects of old age (60 year-old or older). The means of the initial and the final ulnar variance of the whole series and the three groups were compared by the paired Student’s t-test. There were no significant differences between the initial and final ulnar variances in all three age groups and in the whole series. In normal subjects without diseases or injuries affecting the wrist, ageing does not affect the ulnar variance.

scholarly journals Study of Time Orientation and Wellbeing in Old Age

2015 ◽  
Vol 2 (2) ◽  
Author(s):  
Thiyam Kiran Singh ◽  
Bharathi Kumari ◽  
Pragyendu ◽  
Akshat Chowdhury
Keyword(s):  
Old Age ◽  
Time Perspective ◽  
Middle Age ◽  
Age Groups ◽  
Future Time Perspective ◽  
Time Orientation ◽  
Psychological Wellbeing ◽  
Future Time ◽  
One Way Anova ◽  
Two Age Groups

The present study aimed at exploring time perspective in relation to psychological wellbeing among 90 subjects belonging to 3 different age categories. The time perspective questionnaire ( Zimbardo & Boyd ,1999 ) and psychological wellbeing questionnaire ( Bhogle et al, 1995) were administered to a sample of 90 ( 30- Adolescence, 30-Middle Age and 30-Old Age). Data were analyzed with the help of one – way ANOVA and correlation. The results indicated significant differences across 3 age levels in past negative and future areas of time perspective. In past negative area of time perspective the older generation has obtained significantly higher mean than the other two age groups. In future time perspective the younger generation has obtained significantly higher mean. The result also found no significant corelationship between time perspective and wellbeing.

scholarly journals Radial Growth Adaptability to Drought in Different Age Groups of Picea schrenkiana Fisch. & C.A. Mey in the Tianshan Mountains of Northwestern China

Forests ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 455
Author(s):  
Liang Jiao ◽  
Xiaoping Liu ◽  
Shengjie Wang ◽  
Ke Chen
Keyword(s):  
Climate Change ◽  
Drought Stress ◽  
Old Age ◽  
Tree Species ◽  
Radial Growth ◽  
Forest Ecosystems ◽  
Middle Age ◽  
Age Groups ◽  
Tianshan Mountains ◽  
Picea Schrenkiana

Forest ecosystems are strongly impacted by extreme climate, and the age effects of radial growth under drought can provide profound understanding of the adaptation strategy of a tree species to climate change. Schrenk spruce (Picea schrenkiana Fisch. & C.A. Mey) trees of three age groups (young, middle-aged, and old) were collected to establish the tree-ring width chronologies in the eastern Tianshan Mountains of northwestern China. Meanwhile, we analyzed and compared the response and resistance disparities of radial growth to drought in trees of different age groups. The results showed that (1) drought stress caused by increasing temperatures was the main factor limiting the radial growth of Schrenk spruce, (2) the old and young trees were more susceptible to drought stress than the middle-aged trees, as suggested by the responses of Schrenk spruce trees and based on the SPEI (standardized precipitation evapotranspiration index), and (3) the difference of the resistance indexes (resistance, recovery, resilience, and relative resilience) of three age groups to drought supported that the resistance values were in the order middle age > young age > old age, but the recovery, resilience, and relative resilience values were in the order old age > young age > middle age. These results will provide a basis for the ecological restoration and scientific management of dominant coniferous tree species of different age groups in the sub-alpine forest ecosystems of the arid regions under climate change scenarios.

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