Fecundity of Grand Bank Haddock

1963 ◽  
Vol 20 (6) ◽  
pp. 1465-1487 ◽  
Author(s):  
V. M. Hodder
Keyword(s):  
Early Development ◽  
Body Length ◽  
Environmental Conditions ◽  
Food Supply ◽  
The Body ◽  
Age Group ◽  
Individual Fish ◽  
The Individual ◽  
Better Than

The fecundity of Grand Bank haddock was investigated from 229 specimens collected during the early springs of 1957–61. It was found that fecundity increased at a rate proportional to about the fifth power of the body length and to the square of the age, the correlations between fecundity and length and between fecundity and weight being better than that between fecundity and age. Within any age-group fecundity was found to increase with length. Since the larger fish of an age-group are the first to mature, it is suggested that fecundity of individual fish may be more directly related to the number of times that the fish has spawned than to such parameters as length, weight or age. Certain differences in fecundity, found between the samples of the individual years, are discussed in relation to such environmental conditions as temperature in so far as it determines the degree of haddock concentration (thus affecting the food supply) at certain times which are probably critical during the early development and maturation of the ova.

scholarly journals STUDY ON LEVELS OF SERUM IRON AND SERUM FERRITIN IN ADOLESCENT DEPRESSION IN A TERTIARY CARE HOSPITAL

2020 ◽  
pp. 1-4
Author(s):  
Madhurima Bora ◽  
Sherin Gogoi ◽  
Puja Bora
Keyword(s):  
Serum Iron ◽  
Adolescent Depression ◽  
Tertiary Care ◽  
The Body ◽  
Care Hospital ◽  
Age Group ◽  
Omega 3 ◽  
Medical College ◽  
The Individual ◽  
T Values

Introduction: A notable feature of patients suffering from mental disorders is the severity of deficiency in the nutrients in diets especially essential vitamins, minerals and omega-3 fatty acids. Iron is a vital nutrient that plays a role in every cell of the body, the deficiency of which will cause depression besides lack of energy, dizziness, light headedness and pale skin. Aim: The study is aimed to estimate serum iron and Ferritin in adolescent depression cases and to evaluate their role in adolescent depression. Method material: Patients in the age group of 13 – 19 years, suffering from depression, and attending Psychiatry OPD of Gauhati Medical College are taken as cases. Controls are healthy individuals in the same age group. Samples are collected and serum iron and ferritin are estimated and compared between the two groups. Data are analyzed with the help of Minitab-19 and in MS-excel. Results: Both serum iron and ferritin are decreased significantly in group containing adolescent with depression. Both are highly significant P<0.001 with ‘t’ values 14.42 and 13.11 respectively. Conclusion: This Study gives us an idea that while investigating a case of adolescent depression, emphasis must be given to the nutritive status (iron and ferritin) of the individual also.

scholarly journals ASIATIC SMELT OSMERUS DENTEX STEINDACHNER ET KNER, 1870 OF THE UDA RIVER (NORTHWESTERN OKHOTSK SEA) — BIOLOGY, ECOLOGY, FISHERY

2019 ◽  
Vol 199 ◽  
pp. 83-97
Author(s):  
V. P. Ovsyannikov ◽  
A. Yu. Nemchenko ◽  
A. N. Kanzeparova
Keyword(s):  
Body Weight ◽  
Body Length ◽  
River Flow ◽  
Age Groups ◽  
River Mouth ◽  
The Body ◽  
Spawning Migration ◽  
Spawning Grounds ◽  
Absolute Fecundity ◽  
The Individual

Data on biology, ecology and fishery of asiatic smelt in the Uda River during its spawning migration are analyzed. The spawning begins in May-June in 2–11 km from the river mouth and lasts 3–10 days. Timing of its start varies from May 22 (2014 and 2018) to June 14 (2001), with 24 days difference. The spawning migration begins under the water temperature 6.0 оС, during the spawning the temperature varies from 6.2 to 11.9 оС. The river flow velocity on the spawning grounds is 1.2–2.6 m/s, the river depth varies from 0.3 to 2.5 m. Age of the spawners is 2–8 years, their length is 11.5–32.0 cm and weight 10.8–275.0 g, males usually prevail in number (63–81 %). Depending on the year-class strength, the fish in age of 3 or 4 years prevail among the spawners. After spawning, females leave the spawning grounds immediately — in that time their occurrence in the catches below the spawning grounds can reach 85 %. Size of the spawners decreases during the migration, for males the decreasing was from 19.0 to 15.0 cm in 2007, from 20.2 to 18.8 cm in 2014, from 19.3 to 16.6 cm in 2015, and from 19.4 to 16.0 cm in 2016, for females — from 21.0 to 18.0 cm in 2007, from 22.1 to 19.6 cm in 2014, from 21.3 to 19.0 cm in 2015, and from 24.5 to 16.1 cm in 2016. Annual increments of the smelt body length are 0.7–7.8 cm, on average 3.9 cm, for the body weight 17.1–39.9 g, on average 32.1 g. The minimum registered size of mature male and female was 11.5 and 13.0 cm, respectively. Percentage of the smelt with non-commercial size during spawning migration was 19.2 % in 2007, 0.4 % in 2014, 15.4 % in 2015, and 28.4 % in 2016. The group linear growth of asiatic smelt could be approximated by Bertalanffy equation: L = 30.5 [1 – e–0.317 (t – 0.533)]. Its body length dependence on weight is described by the equation of simple allometry: W = 0.002 L3.380 (determination r 2 = 0.92–0.99). The body weight depends on age as the function: Wt = 2.974t 2.136. Individual absolute fecundity of the smelt in the Uda varies from 11300 to 141300 eggs, on average 52500 eggs in 2016 and 50400 eggs in 2007; these values are close to the smelt fecundity in the Ulbeya and Inya rivers. The fecundity variation generally increases with the age: the registered ranges of absolute fecundity (thousand eggs) were, by age groups: 19.1 for 3 years, 53.5 for 4 years, 37.8 for 5 years, 57.5 for 6 years, and 60.3 for 7 years old fish, the ranges of relative fecundity (eggs/g of body weight) were: 864, 537, 565, 501, and 449 eggs/g for the same age groups. The total population fecundity was 32.7. 109 eggs in 2016. The individual absolute fecundity has the following dependencies on body length, weight, and age: AF(L) = 0.001 L3.437, AF(W) = 0.650 W0.986, and AF(t) = 1.661 t 2.250, respectively. The stock of asiatic smelt in the Uda is represented by migrating fish only. Its fishery was conducted by 8 companies, their total annual landing increased from 10 t in 2012 to 373 t in 2017 and slightly decreased recently: the mean landing for 2013–2019 was 276 t. The spawning biomass of smelt was estimated from 637 to 1734 t, by years, that was about 70 % of the biomass of mature smelt in the Shantar Sea.

scholarly journals EVALUATION OF THE GROWTH PERFORMANCE OF CALVES FROM DIFFERENT DAMS SERVED BY SAME BULKL

2021 ◽  
Vol 28 (1) ◽  
pp. 72-77
Author(s):  
S. I. OMEJE ◽  
S. O. ALAKU ◽  
B. I. ODO ◽  
K. I. EMEHELU
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Body Length ◽  
Mean Value ◽  
The Body ◽  
Body Measurements ◽  
Weight Changes ◽  
Coefficients Of Variation ◽  
Cattle Ranch ◽  
The Individual

The growth performance of seve calves from different Mutura dams served by same bull was studied in a mini cattle ranch. Body measurements were taken and observed for growth over a period of 12 months. The result indicates an apparaent difference among the calves in all parameters measured including body weight, body length, height at withers and heratgirth. Growth rate also showed increased differences among the experimental calves. The birth weights of the seven calves ranged from 9.8 to 13.0kg, with a mean value of 11.42+0.44 while the yearling weights were between 107.80 and 129.48kg with an overall mean of 120.57+2.44. The coefficients of variation for body weight at birth and at 12 monthys were 10.16 and 5.36% respectively. The results further revealed that body weight at yearling age correlated positively with all parameters and these include body length (r=0.81889, r2 = 67.09), height at withers (r=0.8837, r2=78.09). Similarly, body length had a positive correlation with height at withers (r=0.9667, r2=93.45) and heartgirth (r=0.8782, r2=77.13). White height at withers correlated positively with heartgirth (r=0.9291, r2=86.42). Similar trends were obtained in the regression of each of the body measurements on the other in which body weight changes depended more on those of body length (0.56) than on heartgirth (0.34). Judging from the observed variations existing among the individual calves resulting from the different cows at birth and at 12 months of age, maternal rather than paternal influences appeared to be more important in the traits studied.

scholarly journals A comparative analysis of the relationship between stature and ultrasound dimensions of internal organs in adolescents

2021 ◽  
Vol 12 (2) ◽  
pp. 19-27
Author(s):  
Valerii O. Yerkudov ◽  
Andrey P. Pugovkin ◽  
Aleksej J. Volkov ◽  
Oksana I. Musaeva ◽  
Dmitriy J. Volkov ◽  
...  
Keyword(s):  
Thyroid Gland ◽  
Body Length ◽  
Individual Characteristics ◽  
The Body ◽  
Comparative Characteristic ◽  
Z Score ◽  
Internal Organs ◽  
Average Group ◽  
The Individual ◽  
The Relationship

The aim of the study was a comparative characteristic of the size of internal organs according to ultrasonography data in subjects with various deviations in stature, determined using international standardized norms. Materials and methods. The stature was measured in 93 adolescents, aged 13 to 17 years. Based on the measurements, the Z-score of body length was calculated according to the WHO Growth Reference, 2007 and three groups were formed for comparing the sizes of internal organs: average, above average, below average. Ultrasonography data of the internal organs dimensions and thyroid gland was performed using a Toshiba Aplio 500 ultrasound scanner. Results. There were statistically significantly lower values of the liver span and the longitudinal size of the gallbladder in the examined subjects from the below average group compared to the rest of the subjects. The length of the spleen and the total volume of the thyroid gland were statistically significantly different in subjects from all three groups, with the highest values in volunteers from the above average group. A weak direct correlation was shown between the Z-score of body length and liver span, the length of the cauda of the pancreas, and the width of the spleen. An average direct statistical relationship was found between the Z-score of stature and the length of the spleen, as well as the total volume of the thyroid gland. Conclusion. To a greater extent, body length is associated with the size of the parenchymal organs with a pronounced connective tissue frame - the liver and spleen, as well as the thyroid gland due to the relationship of its volume with hormones that regulate growth and development. Clinical substantiation of the relationship between the structure of the body and internal organs opens up the possibility of creating anatomical standards that allow ultrasound morphometric assessment of internal organs, taking into account the individual characteristics of the patients body size.

THE COMPARATIVE CHARACTERISTIC OF BIOLOGICAL INDICATORS OF THE BREAM ABRAMIS BRAMA IN THE KAMA AND VOLGA REACHESES OF THE KUIBYSHEV RESERVOIR

2017 ◽  
pp. 56-63
Author(s):  
Vladimir Vyacheslavovich Kuznetsov ◽  
Vyacheslav Alekseevich Kuznetsov
Keyword(s):  
Body Length ◽  
Age Structure ◽  
Biological Indicators ◽  
The Body ◽  
Comparative Characteristic ◽  
Abramis Brama ◽  
Kuibyshev Reservoir ◽  
Average Mass ◽  
Bream Abramis Brama ◽  
Better Than

The article consideres the dimensional and age structure, growth and coefficient of fatness of the bream Abramis brama in the Volga and the Kama reaches of the Kuibyshev reservoir in 2011-2014. In the period of bream spawning, according to Fulton, in May 2012 there was carried out accounting of sire species of bream in the reaches of the Kama, in the Volga reaches in May, 2013. However the average sizes of the body length of the bream statistically did not differ, and values of average mass of his body in the Kama reaches were higher. Fish age in the Volga reaches fluctuated between 2+…11+ years old, i.e. in the Kama reaches there were more species of older age. However, comparing age of the fish caught in 2012, one can see that the results in both places were equal, i.e. reproduction level differs very little. Dominating in catches of 2011-2014 were bream species born in 2004, 2005 and 2008. Among producers there were species of 2004-2005 generations. Growth of the bream in a phase of destabilization of an ecosystem of the Kuibyshev reservoir in comparison even with river conditions was slowed down. It can be noted that growth of the bream in a phase of destabilization of an ecosystem of the Kuibyshev reservoir in comparison even with river conditions was slowed down. In the Volga reaches even-aged individuals of the bream grow better, than in the Kama reaches where biomass of fodder benthos is lower. In the Kama reaches average sizes of fatness coefficient on Fulton are higher than in the Volga reaches.

Croissance, nutrition et reproduction des ouaouarons Rana catesbeiana Shaw (Amphibia Anura) des Laurentides au nord de Montréal

1980 ◽  
Vol 58 (2) ◽  
pp. 175-183 ◽  
Author(s):  
Marcel Bruneau ◽  
Etienne Magnin
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Body Length ◽  
Sexual Maturity ◽  
Rana Catesbeiana ◽  
The Body ◽  
Small Lakes ◽  
Length Growth ◽  
Mating Calls ◽  
The Individual

About 2600 bullfrogs have been captured in three small lakes of the Laurentian region and 1863 among them have been marked and released. The study of the body length growth has been made by three methods (age lecture on pterygoïds, body length histograms, mark–recapture), which give concordant results: 59 mm at 1 year, 81 mm at 2 years, 108 mm at 3 years, 125 mm at 4 years, 137 mm at 5 years, 143 mm at 6 years. The biggest, measuring 162 mm, might have been 8 or 9 years old. The growth rate is the most important between 2 and 3 years, when bullfrogs reach sexual maturity. The body weight is 18 g at 1 year and 40 g at 2 years. At 3 years, the females weigh 101 g and the males 96 g. and at 5 years, the weights are respectively 215 and 194 g. Bullfrogs between 45 and 65 mm eat mostly in sects and the biggest ones eat mostly frogs, tadpoles, fish, and crayfish. The mating calls were heard by the end of May and the spawning occurs between the 20th of June and the 10th of July. The number of eggs (3 826 to 23 540) depends on the size of the individual. Sexual maturity is generally reached at 3 years when bullfrogs measure between 95 and 110 mm. However, some individuals reach sexual maturity at 2 years and some others at 4 years. Our results were compared with those of the literature.

scholarly journals Reproductive biology of amur flathead asp Pseudaspius leptocephalus (Pallas, 1776)

2020 ◽  
Vol 200 (2) ◽  
pp. 308-320
Author(s):  
N. N. Semenchenko ◽  
E. V. Ostrovskaya
Keyword(s):  
Reproductive Biology ◽  
Body Length ◽  
Gonadosomatic Index ◽  
The Body ◽  
Mountain Rivers ◽  
Oocyte Growth ◽  
Age Of Maturity ◽  
Batch Spawning ◽  
The Individual ◽  
Single Batch

Some characteristics of reproductive biology are considered for amur flathead asp Pseudaspius leptocephalus (Pallas, 1776), as features of its spawning, reproduction capability, annual dynamics of oocyte growth and females gonadosomatic index. This is the species with a single batch spawning. Age of maturity for the asps living in different areas ranges from 3+ to 5+, mostly 5+ with the body length of 31 cm for the key fishing grounds. They spawn in the lower sections of mountain rivers from late May till early June. Females prevail in ratio 2 : 1, on average, both in the spawning and feeding aggregations. The individual absolute fecundity of amur flathead asp females depends linearly on their body length and weight.

scholarly journals Analysis of lines and breeds of sires in the breeding of the Czech warmblood horses based on grading their offspring in rearing facilities for testing young horses (RFT)

2013 ◽  
Vol 61 (6) ◽  
pp. 1605-1612
Author(s):  
Hana Černohorská ◽  
Eva Sobotková ◽  
Martina Kosťuková ◽  
Iveta Bihuncová ◽  
Ivana Oravcová
Keyword(s):  
Statistical Significance ◽  
Orange Peel ◽  
Multiple Comparisons ◽  
The Body ◽  
Body Conformation ◽  
Individual Effects ◽  
And Performance ◽  
The Individual ◽  
Young Horses ◽  
Better Than

The objective of the present study was to evaluate the effect of the breed of sire and line of sire on grading of the body conformation and performance of colts of warmblood horses in rearing facilities for testing young horses (RFT). The groundwork database contained data from 2001 to 2011 from nine RFT’s. The database was processed statistically using the GLM method to assess the statistical significance of the effect of the breed of the sire and line of the sire on body conformation and performance of the colts. By multiple comparisons of the individual effects using the Tukey-B method we discovered statistically significant differences in the body conformation and performance of colts of sires among the respective breeds and lines. The performance of the offspring of Dutch warmblood, Hanoverian horse and Holsteiner horse sires is better than of the offspring of sires of the Thoroughbred, Czech warmblood and Selle Francais. The conformation of the offspring by sires of the Holsteiner horse and Hanoverian horse breeds is superior to that of offspring by sires of the Selle Francais and Czech warmblood. The mechanics of movement of the offspring of the 2300 Shagya XVIII-Báb. line is inferior to the offspring of the following lines: 3100 Adeptus xx, 67 Dark Ronald, 1000 Der Lowe xx, 3250 Dwinger 3257, 4800 Ladykiller xx, Orange Peel xx – Alme Z, 1100 Przedswit VI-Rad., 4900 Rantzau xx – Cor De La Bryere, 4600 Rittersporn xx – Ramzes 4028, 60 St. Simon and 88 Teddy. The effect of the line of the sires on the body conformation of colts has not been proved.

Influence of stable iodine on the uptake of the thyroid – model vs. experiment

2001 ◽  
Vol 40 (01) ◽  
pp. 31-37 ◽  
Author(s):  
U. Wellner ◽  
E. Voth ◽  
H. Schicha ◽  
K. Weber
Keyword(s):  
Time Course ◽  
Compartment Model ◽  
The Body ◽  
Iodine Uptake ◽  
Model Calculations ◽  
Physiological Conditions ◽  
Iodine Supply ◽  
Predicted Values ◽  
The Individual ◽  
Stable Iodine

Summary Aim: The influence of physiological and pharmacological amounts of iodine on the uptake of radioiodine in the thyroid was examined in a 4-compartment model. This model allows equations to be derived describing the distribution of tracer iodine as a function of time. The aim of the study was to compare the predictions of the model with experimental data. Methods: Five euthyroid persons received stable iodine (200 μg, 10 mg). 1-123-uptake into the thyroid was measured with the Nal (Tl)-detector of a body counter under physiological conditions and after application of each dose of additional iodine. Actual measurements and predicted values were compared, taking into account the individual iodine supply as estimated from the thyroid uptake under physiological conditions and data from the literature. Results: Thyroid iodine uptake decreased from 80% under physiological conditions to 50% in individuals with very low iodine supply (15 μg/d) (n = 2). The uptake calculated from the model was 36%. Iodine uptake into the thyroid did not decrease in individuals with typical iodine supply, i.e. for Cologne 65-85 μg/d (n = 3). After application of 10 mg of stable iodine, uptake into the thyroid decreased in all individuals to about 5%, in accordance with the model calculations. Conclusion: Comparison of theoretical predictions with the measured values demonstrated that the model tested is well suited for describing the time course of iodine distribution and uptake within the body. It can now be used to study aspects of iodine metabolism relevant to the pharmacological administration of iodine which cannot be investigated experimentally in humans for ethical and technical reasons.

EPIDEMIOLOGY AND OUTCOMES OF ELECTRIC BURN INJURY AT TERTIARY CARE CENTER IN JODHPUR, RAJASTHAN

2019 ◽  
Vol 3 (6) ◽  
Author(s):  
Bharti Saraswat ◽  
Ashok Yadav ◽  
Krishna Kumar Maheshwari
Keyword(s):  
Burn Injury ◽  
Low Voltage ◽  
Care Center ◽  
Tertiary Care ◽  
The Body ◽  
Electrical Injury ◽  
Age Group ◽  
Electric Circuits ◽  
Medical College ◽  
Social Burden

Background- Electric burns and injuries are the result of electric current passing through the body. Temporary or permanent damage can occur to the skin, tissues, and major organs. Methods- This prospective study was carried out on patients admitted in burn unit of department of surgery M.G. Hospital associated with Dr. S.N. Medical College Jodhpur. Records of the patients admitted from January 2018 to December 2018 were studied. Bed head tickets of the patients evaluated in detail. Results- In our study out of 113 patients maximum no. of patients were in age group of 21-30 years 44 (38.94%) followed by age group <11 years in 21 (18.58%) patients and age group of > 60 years in only 3 (2.65%).39 (34.51%) patients were farmer and 15 (13.27%) were electrician in out of 113 total patients, while 37 (32.74%) were without any occupation. 65 (57.52%) cases of high voltage (HV) electrical injury and 48 (42.48%) cases were of low voltage (LV) electrical injury. Conclusion- Morbidity leading to permanent disabilities make the person physically dependent on others. It can be prevented by educating the people about the proper handling to electric circuits & devices. Proper communication among the electricians may help in lowering such accidents. Proper rehabilitation of the handicapped person & employment to the member of the affected family may reduce the social burden caused by such electricity concerned accidents.

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