Growth of Cutthroat Trout (Salmo clarki) in Chef Creek, Vancouver Island, British Columbia

1970 ◽  
Vol 27 (11) ◽  
pp. 2063-2070 ◽  
Author(s):  
Edwin L. Cooper
Keyword(s):  
Lateral Line ◽  
Age Groups ◽  
Cutthroat Trout ◽  
Group Iv ◽  
The Body ◽  
Age Group ◽  
Caudal Peduncle ◽  
Anterior Portion ◽  
Size At Age ◽  
Salmo Clarki

Cutthroat trout were collected periodically from April 3 to September 20, 1968, by electrofishing and were preserved in formalin. Within a few days, each fish was measured and a sample of scales was taken for study. Scales first appeared on these cutthroat trout immediately above and below the lateral line on the anterior portion of the caudal peduncle. Scales were always selected from this area for study, mounted in glycerin–gelatin, and examined at a magnification of 127 diameters. Scales grow relatively more slowly as the fish increases in length, causing the body–scale relation to be curvilinear. Growth of the fish was determined both by calculating size-at-age data from the scales and by comparing mean lengths of age-groups collected at different times of the year.The growth of cutthroat trout from Chef Creek was slow; calculated mean fork lengths for the first three annuli were 50, 84, and 119 mm. Only a few fish of age-group IV were collected and these were considered to be nonanadromous individuals on the basis of scale examination and small size.

Circuli development on body scales of young pond-reared walleye (Stizostedion vitreum)

1985 ◽  
Vol 63 (4) ◽  
pp. 912-915 ◽  
Author(s):  
C. L. Glenn ◽  
J. A. Mathias
Keyword(s):  
Age Groups ◽  
Total Body Length ◽  
Progressive Increase ◽  
The Body ◽  
Age Group ◽  
Scale Growth ◽  
Caudal Peduncle ◽  
Fish Size ◽  
The Mean ◽  
Total Body

The development of circuli on the scales of young walleye were related to fish size and age. The species first develop scales in the caudal peduncle region of the body when the fish are approximately 30 mm in total body length and about 36 days old. Scale growth and circulus formation are directly related to body growth, with maximum deposition occurring in late July and early August. Seldom are circuli continuous ridges surrounding the scale focus; rather the number of lateral and central circuli are dependent on scale shape, body size, and time. The distances between respective circuli of all age groups examined were relatively constant except for a progressive increase in intercircular spaces between the first four circuli of fish aged 36–64 days. Within each age group the mean intercircular distances between the first 10 to 12 circuli tended to decrease with distance from scale focus. Cteni develop on caudal scales when scales have four to five circuli and when walleye are about 6 weeks of age.

Size-At-Age Variability and Sexual Dimorphism of Morphometric Characteristics in the Late Ontogenesis of the Marsh Frog, Pelophylax Ridibundus (Anura, Ranidae), from Terrytory of Crimea

2019 ◽  
Vol 53 (4) ◽  
pp. 325-334
Author(s):  
V. N. Peskov ◽  
N. A. Petrenko ◽  
V. Yu. Reminnyi
Keyword(s):  
Age Groups ◽  
The Body ◽  
Adult Males ◽  
Morphometric Characteristics ◽  
Morphometric Characters ◽  
Mean Values ◽  
Marsh Frog ◽  
Males And Females ◽  
Size At Age ◽  
Linear Body

Abstract We study size-at-age and sexual variability of morphometric characteristics of the marsh frog. According to the size of the body, males were divided into three size-age groups (juvenis, subadultus, adultus), females — into four groups (juvenis, subadultus, adultus, adultus-I). We found that the chronological age of frogs (skeletochronology) does not always correspond to their biological age (size and proportions of the body). We noted that the semi-adult males are reliably larger than females by mean values of 26 studied morphometric characters. Males and females of “adultus” group do not differ by linear body size, significant differences were found in body proportions (7 characters). For the females of “adultus-I” group, the mean values of 26 characters are significantly larger than for “adultus” males. The results of our study showed that with the age of the marsh frog, the level of exhibition, directionality and structure of morphometric sex differences changes.

scholarly journals A new species of Characidium (Characiformes: Crenuchidae) from small coastal drainages in northeastern Brazil, with remarks on the pseudotympanum of some species of the genus

2014 ◽  
Vol 12 (2) ◽  
pp. 333-342 ◽  
Author(s):  
Angela M. Zanata ◽  
Priscila Camelier
Keyword(s):  
New Species ◽  
Lateral Line ◽  
The Body ◽  
Northeastern Brazil ◽  
Horizontal Scale ◽  
Caudal Peduncle ◽  
Transversal Line ◽  
Lateral Band ◽  
The Family ◽  
A New Species

Characidium samurai, a species of the family Crenuchidae apparently endemic to rio das Almas and rio Vermelho basins, Bahia, Brazil, is described. The new species is readily distinguishable from its congeners, except C. lanei, by having a dark lateral band along the head and body that is particularly broad from the rear of the head to the end of the caudal peduncle (1.5 or 2 scales wide) and by the absence of dark bars or blotches on the ventral half of the body. Characidium samurai differs from C. laneiby having the lateral band with straight borders overall (vs.lateral band with somewhat irregular borders due to blotches extending dorsally or ventrally), anal fin ii,7-8 (vs. ii,6), and 4 horizontal scale rows above the lateral line and 4 below (vs. 5/3). It further differs from congeners by a series of features, including isthmus completely covered by scales, lateral line complete with 34-37 perforated scales, 9 scales on the transversal line, 14 scale rows around the caudal peduncle, anal fin ii,7-8, and the absence of dark bars or spots on the fins, except by a faded dorsal-fin bar. The presence of pseudotympanum in four species of Characidium is discussed.

Some Morphological Differences Between the Subspecies of Cutthroat Trout, Salmo clarkii clarkii and Salmo clarkii lewisi, in British Columbia

1959 ◽  
Vol 16 (6) ◽  
pp. 903-922 ◽  
Author(s):  
S. U. Qadri
Keyword(s):  
British Columbia ◽  
Lateral Line ◽  
Cutthroat Trout ◽  
Complete Separation ◽  
The Body ◽  
Natural Distribution ◽  
Spot Number ◽  
Coastal Cutthroat Trout ◽  
Morphological Differences ◽  
Coastal British Columbia

Coastal cutthroat trout, S. c. clarkii Richardson, occupy most lakes and streams of coastal British Columbia, including the adjacent islands. Yellowstone cutthroat, S. c. lewisi (Girard), occupy southeastern British Columbia; their range is separated from that of the coastal subspecies by a zone lacking cutthroat trout. A map showing all natural distribution records in the province is presented. From 60 to 146 specimens were examined for distinguishing characters. Spots below the lateral line are more numerous towards the anterior end in S. c. clarkii, but more numerous towards the posterior end in S. c. lewisi. A plot of spot number in selected areas of the body provides almost complete separation of individuals of the two subspecies. Significant differences also occur in certain scale counts and in body and peduncle depth, although these characters overlap considerably between the subspecies. No difference was found in vertebral count.

scholarly journals The burden of the current curative expenditure of injury in Dalian, China-A study based on “System of Health Accounts 2011”

2020 ◽  
Author(s):  
Shu Sun ◽  
Liuna Yang ◽  
Xinzhu Hu ◽  
Yalan Zhu ◽  
Boxi Liu ◽  
...  
Keyword(s):  
Foreign Body ◽  
Lower Limb ◽  
Control Strategies ◽  
Age Groups ◽  
The Body ◽  
Age Group ◽  
Curative Care ◽  
Health Accounts ◽  
System Of Health Accounts ◽  
The Cost

Abstract Background Injury is one of the major public health problems, which causes more than 5 million deaths in the world every year. Cases of specific types of injury put a tremendous threat to human health and also add a heavy medical burden on individuals and societies. This study was to calculate and analyze the current curative expenditure (CCE) of injury in Dalian and consequently to provide control strategies for decision-makers. Main text: A total of 565 medical institutions were selected with multistage stratified cluster random sampling, containing 4,375,351 valid samples. Subsequently, the distribution of injury CCE in different dimensions (including age and site of injury) was analyzed under the framework of System of Health Accounts 2011(SHA 2011) using the established database. There were increases from 32.36/100,000 in 2006 to 37.34/100,000 in 2017 and from 46.12/100,000 in 2006 to 54.48/100,000 in 2017 in urban and rural residents respectively. The study found that the CCE of injury in Dalian had reached 1572.73 million RMB, accounting for 7.45% of the total curative care expenditure. In the 15–25 age group, the cost of injury accounts for a larger proportion of CCE than other age groups. Among the injuries in different regions of the body, injuries to the spine, lower limb, head and foreign body entering cost the most. Conclusions Dalian has a relatively serious burden of injury costs. The essential and primary goal is to reduce the cost and increase the benefit of attending to patients with injuries. Specific control strategies should be tilted toward the age group 15–25. Injuries to the spine, lower limb, head and foreign body entering also should be priorities of interventions.

scholarly journals AYURVEDIC DIETARY CONCEPTS IN DIFFERENT AGE GROUP OF CHILDREN

2020 ◽  
pp. 84-86
Author(s):  
Shamama Firdaus ◽  
Sunil Topre ◽  
Nitin Mane
Keyword(s):  
Life Style ◽  
Dietary Habits ◽  
Age Groups ◽  
Healthy Person ◽  
The Body ◽  
Developmental Phase ◽  
Age Group ◽  
Factors Influencing ◽  
Healthy Nutrition ◽  
Major Factors

Ayurveda is a science of life, which mainly aims to promote and preserve the health of the individuals. In this techno and competitive era, life style and diet are major factors influencing the health of the individuals. Diet and dietary habits play important role in maintenance of health. Ayurveda, its main aim is to promote and preserve the health, strength and longevity of healthy person and to cure the disease. Ayurveda places special emphasis on Ahara and believes that healthy nutrition nourishes the Sharir, Mana, Atma. As Acharyas has described Ahara. Nidra, Brahmcharya are Tryoupsthambha (sub pillars) which support the body itself. Here Ahara has been placed first which shows that it is most important to maintain and sustain of life. Children are delicate and most sensitive and prone to the infectious diseases. They are miniature of adult. They are in Ajatvyajanawastha (developing stage). Psychologically they are innocent. Being in developmental phase, Ahara plays very important role in the life of children. So parents should be aware of dietetic components required by child in different age groups.

Two new Hyphessobrycon (Characiformes: Characidae) species from Central Amazon basin, Brazil

Zootaxa ◽  
2017 ◽  
Vol 4318 (1) ◽  
pp. 123 ◽  
Author(s):  
CRISTIANO R. MOREIRA ◽  
FLÁVIO C.T. LIMA
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
The Body ◽  
Dark Band ◽  
Caudal Peduncle ◽  
Anterior Portion ◽  
Central Amazon ◽  
Two New Species

Two new species of Hyphessobrycon, H. ericae and H. wosiackii, are described from the Amazon basin, Brazil. Both new species are distinguished from congeners by the coloration, composed by one humeral blotch merging with an anterior dark band restricted to the anterior portion of the body and the presence of a caudal peduncle blotch. Hyphessobrycon ericae is distinguished from H. wosiackii by presenting a humeral spot vertically elongated, with an overall appearance of an arrow, instead of an anteriorly rounded humeral spot. 

scholarly journals Peculiarities of using drugs in the elderly and senile persons

Akademos ◽  
2021 ◽  
pp. 77-88
Author(s):  
Victor Ghicavii ◽  
◽  
Anastasia Caracas ◽  
Keyword(s):  
Age Groups ◽  
The Elderly ◽  
The Body ◽  
Age Group ◽  
Functional Disorders ◽  
Aged People ◽  
Drug Substances ◽  
Pathological Conditions ◽  
Medicinal Substances ◽  
Treatment Plans

Elderly patients, compared to young people, use a huge volume of drugs because they are exposed to a greater number of diseases and pathological conditions, denote significant organic changes and age-induced functional disorders. The elucidation of the peculiarities of the action and usage of medicinal substances by elderly and senile people is currently gaining in importance since the share of people from this age group increased considerably, they becoming longer-lived. The body reaction to the drug substances in this category of patients changes as a result of the physiological aging of the organs and tissues and the presence of various simultaneous diseases. With age, the frequency of adverse drug reactions increases if compared to that of middle-aged people. Also, the sensitivity to most drugs is more pronounced to elderly and senile persons, which is why their usage dose should be reduced, the range of more active and toxic preparations being considerably limited. All these create difficulties in treatment, because, in these patients, polypragmasia is found more frequently than in other age groups, where about half of the drugs are prescribed according to vital indications. For these reasons, when prescribing drugs and drawing up treatment plans, the doctor should take into account, in a fairly thorough way, all the information on the aging process, the patient’s condition and the nature of the conditions currently being treated.

scholarly journals Two new species of Isbrueckerichthys Derijst, 1996 (Siluriformes: Loricariidae) from the rio Paranapanema basin, Brazil

Zootaxa ◽  
2006 ◽  
Vol 1372 (1) ◽  
pp. 53 ◽  
Author(s):  
FERNANDO C. JEREP ◽  
OSCAR A. SHIBATTA ◽  
EDSON H.L. PEREIRA ◽  
OSVALDO T. OYAKAWA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Exposed Surface ◽  
Caudal Peduncle ◽  
Anterior Portion ◽  
Strongly Convex ◽  
Two New Species ◽  
Peduncle Length ◽  
Superior Portion ◽  
Entire Margin

Two new Isbrueckerichthys species from Paranapanema river basin are described, I. saxicola and I. calvus, respectively from ribeirão Jacutinga and rio Taquara affluents. Both species present all diagnostic characters of the genus, and differ from their congeners by having bicuspid teeth (vs. simple teeth in I. alipionis), hypertrophied odontodes along the lateral margin of head (vs. hypertrophied odontodes only at the anterior portion of snout in I. epakmos) and longer pectoral-fin spine and shorter caudal peduncle length in relation to I. duseni. The new species can be distinguished from each other by number of odontodes in each minute abdominal platelet (more than six in I. saxicola vs. at most six in I. calvus); by the presence of a plated area under the three first plates of the lateral line in I. saxicola vs. its absence in I. calvus in which this region is naked; by a exposed portion of cleithrum bordering the entire margin of the opercular opening in I. saxicola vs. bordering just the superior portion in I. calvus; and by presenting the exposed surface of supraoccipital plain or slightly convex in I. saxicola vs. strongly convex with an area without odontodes on the center in I. calvus.

The fluctuations of melatonin and copeptin levels in blood serum, during surgical stress regarding the pediatric population.

2021 ◽  
Vol 17 ◽  
Author(s):  
Maria Dragoumi ◽  
Dimitrios Dragoumis ◽  
Sotirios Karatzoglou ◽  
Ioannis Spiridakis ◽  
Areti Chitoglou-Makedou ◽  
...  
Keyword(s):  
Surgical Stress ◽  
Pediatric Population ◽  
Age Groups ◽  
Underlying Disease ◽  
Diagnostic Value ◽  
The Body ◽  
Age Group ◽  
Post Surgery ◽  
Significant Difference ◽  
Group 3

Introduction: Copeptin is known to be associated with heart damage, while melatonin is a regulatory hormone associated with circadian rhythm and represents the levels of inflammation in the body. Methods and patients: The aim of the study was to measure in different surgeries the levels of copeptin and melatonin at different times before and after surgery in 56 patients aged from 5 days to 13.6 years. We measured copeptin in 50-microL serum and plasma samples from patients before surgery, immediately after surgery, and 24 hours after surgery. The measured levels are aligned with the published GC / MS data and the sensitivity of the analysis is such that serum and plasma levels can only be measured by rapid extraction. The measurement was made before surgery, immediately after surgery and 24 hours after surgery. Results: The multifactorial statistical analysis revealed a statistically significant difference between the 24-hour postoperative copeptin values in group 1 (mild-moderate gravity surgery) and group 2 (severe surgery) of the severity of the surgery. Post-hoc tests with Tukey correction for age groups in multiple comparisons of multifactorial analysis revealed a statistically significant difference (p <0.05) between 24-hour postoperative melatonin values in age group 3 (3-6 years) and 5 (6-12 years old). The age group 3 showed significantly (p <0.05) lower 24 hours postoperative melatonin values compared to the age group 5 (6-12 years). Again, these 3-6 year olds were more likely to have inflammation due to the severity of the surgery and the presence of inflammation after the surgery. Discussion: In summary, copeptin is a reliable biomarker for assessing a patient's health both preoperatively and postoperatively. Copeptin and melatonin are two independent agents and are not related to each other, and more studies will be needed with more patients of the same age and with the same underlying disease to assess their diagnostic value. Finally, melatonin could be considered an indicator of inflammation on its own and based on pre- and post-surgery values to assess a patient's health status and take appropriate actions.

Sign in / Sign up

Export Citation Format

Share Document