Distribution, Age and Growth of Eastern Pacific Albacore (Thunnus alalunga Gmelin)

1955 ◽  
Vol 12 (1) ◽  
pp. 35-60 ◽  
Author(s):  
J. M. Partlo
Keyword(s):  
Average Length ◽  
Fork Length ◽  
Age And Growth ◽  
Frequency Distributions ◽  
Ring Number ◽  
Thunnus Alalunga ◽  
One Year ◽  
Relationship Of ◽  
The Relationship ◽  
Good Agreement

Seasonal and regional variations in the abundance of albacore during the 1949, 1950 and 1951 British Columbia fishing seasons suggest that exploitable stocks occurred in increasingly northerly areas during July and August and in more southerly areas during late August, September and early October. Catches were composed of four length-groups with average lengths of 54.3, 62.9, 71.7 and 81.9 centimetres. These groups were sometimes fairly discrete, but usually overlapped broadly, so that it was necessary to plot frequency distributions on probability paper in order to choose the best points of separation.Concentric marks on the centra of vertebrae were used as indicators of the age of the fish. The relationship of body length to vertebral radius is rectilinear. There is good agreement between the estimated average length and standard deviation in length of the fish when grouped by length and when grouped by vertebral ring number. The ages indicated for the four groups are III, IV, V and VI; however the first vertebral ring is somewhat less clear than the others and if it were discounted these ages would be reduced by one year. The fish whose vertebrae were examined had almost completed a year's growth.The length-weight relationship is expressed by the formula, log W = −4.912 + 3.13 log L, where W is the weight in kilograms and L is the fork length in centimetres.

Age and growth of Australian grayling, Prototroctes maraena Gnnther (Salmoniformes : Prototroctidae), in the Tambo River, Victoria

1983 ◽  
Vol 34 (3) ◽  
pp. 451 ◽  
Author(s):  
TM Berra ◽  
PL Cadwallader
Keyword(s):  
Age Determination ◽  
Fork Length ◽  
Age And Growth ◽  
Scale Growth ◽  
Length Frequency ◽  
Age Classes ◽  
Frequency Distributions ◽  
Overall Ratio ◽  
The Relationship ◽  
Australian Grayling

The age and growth of Australian grayling were studied in 1203 individuals collected from the Tambo River, Victoria, between January and November 1979. Scales from 667 grayling were examined. The scale method of age determination was validated by the analysis of seasonal changes in the pattern of scale growth and by correspondence between ages inferred from length-frequency distributions and ages determined by scale readings. One annulus is formed on the scale by October. Most (88%) grayling belonged to the 1+ and 2+ age-classes; fish aged 3+ and 4+ made up 11% of the collection, and fish aged 5+ less than 1%. Size increased from January until May; growth ceased during winter and resumed in September. There was no difference in growth between the sexes. The largest grayling collected was a female of 253 mm fork length (Lf). The overall length-weight relationship was W = 2 715 × 10-6Lf3 2764. The relationship between total length (Lt) and Lf was Lt = 0.93 16 + 1.0742 Lf, and between standard length (Ls) and Lf was Ls = 0.8007 + 0.9095 Lf The overall ratio of males to females was 56 : 44.

scholarly journals Morphoregression and length-weight relationship of Bali sardinella, Sardinella lemuru Bleeker 1853 in Bali Strait Waters

2019 ◽  
Vol 18 (3) ◽  
pp. 275
Author(s):  
Nyoman Dati Pertami ◽  
M.F. Rahardjo ◽  
Ario Damar ◽  
I.W. Nurjaya
Keyword(s):  
Standard Length ◽  
Average Length ◽  
Economic Value ◽  
Fork Length ◽  
Growth Patterns ◽  
Length Measurement ◽  
Weight Relationship ◽  
Total Length ◽  
Relationship Of ◽  
The Relationship

Bali Sardinella, Sardinella lemuru Bleeker 1853, included in small pelagic groups which have an important economic value. The production of Bali Sardinella was the highest among the other small pelagic fish in Bali Strait waters. The morphoregression and length-weight relationship are important to be known to facilitate the conversion between a length measurement to another type of length measurement and the weight. The aims of this research were to reveal the relationship between total length (TL) and standard length (SL), total length and fork length (FL), fork length and standard length, and the length-weight. The research was held in Bali Strait waters from March 2017 – Mei 2018. The morphoregression was analyzed using simple linear regression, whereas the length-weight relationship using power regression. A total of 470 individuals of Bali sardinella were collected during the study period. The fish that analyzed have a length range 9.7 –20.2 cm TL. The average length of Bali sardinella was13.7 cm. The relationship between total length (TL) and standard length (SL); total length (TL) and fork length (FL); fork length (FL) and standard length (SL) for Bali sardinella respectively were TL = 1.1038SL + 0.9313; TL = 1.0861FL + 0.2967; and FL = 1.0068SL + 0.6936, respectively. The value of b which were generated from the length-weight relationship of Bali Sardinella was 3.22 with the growth patterns were positive allometric.AbstrakIkan lemuru, Sardinella lemuru Bleeker 1853, termasuk dalam kelompok ikan pelagis kecil yang bernilai ekonomis tinggi. Dibandingkan dengan jenis pelagis kecil lainnya, hasil tangkapan ikan lemuru  lebih dominan di perairan Selat Bali. Persamaan morforegresi dan hubungan panjang bobot penting untuk diketahui sehingga mudah melakukan kon-versi dari satu jenis panjang ke jenis panjang lain dan bobotnya. Penelitian ini bertujuan untuk mengungkap hubungan antara panjang total (PT) dengan panjang baku (PB), panjang total dengan panjang cagak (PC), panjang cagak dengan panjang baku, serta hubungan panjang bobot ikan lemuru. Penelitian dilaksanakan di perairan Selat Bali kurun waktu Maret 2017 – Mei 2018. Morforegresi dianalisis menggunakan regresi linear sederhana, sedangkan hubungan panjang bobot dianalisis menggunakan regresi power. Ikan lemuru (Sardinella lemuru Bleeker 1853) yang dikumpulkan selama penelitian berjumlah 470 ekor. Ikan yang dianalisis memiliki kisaran panjang antara 9,7 – 20,2 cm PT. Panjang rata-rata ikan lemuru adalah 13,7 cm. Hubungan antara panjang total (PT) dan panjang baku (PB); panjang total (PT) dan pan-jang cagak (PC); panjang cagak (PC) dan panjang baku (PB) ikan lemuru secara berturut-turut adalah PT = 1,1038 PB + 0,9313; PT = 1,0861 PC + 0,2967; and PC = 1,0068 PB + 0,6936. Nilai b yang terbentuk pada hubungan panjang bobot ikan lemuru adalah 3,22  dengan pola pertumbuhan adalah allometrik positif.

Dresden commemorative meetings: Vladimir Scherbachev — Nikolay Medtner

2020 ◽  
pp. 25-39
Author(s):  
Р.Н. Слонимская
Keyword(s):  
Musical Culture ◽  
Russian Culture ◽  
Opera House ◽  
Boris Godunov ◽  
One Year ◽  
Relationship Of ◽  
The Relationship

В статье рассматриваются взаимоотношения выдающихся музыкальных деятелей русской культуры Владимира Владимировича Щербачёва и Николая Карловича Метнера. Фактический материал анализируется на основе писем Щербачёва к жене, Марии Илларионовне, написанных в период командировки 1922-1923 годов в Пильниц под Дрезденом. В письмах раскрывается атмосфера музыкальной культуры Германии этого периода (в том числе постановка в Дрезденской опере Бориса Годунова Модеста Петровича Мусоргского). Подробно описывается процесс работы Щербачёва над партитурой монументального симфонического полотна Второй симфонии на стихи Александра Блока и приводится мнение Метнера о ней. Раскрываются музыкально-эстетические позиции Щербачёва и Метнера в отношении разных сторон техники сочинения, педагогики, исполнительского искусства. Одна из ключевых проблем сохранение традиции и радикальное новаторство, вызывавшее у Метнера весьма сложную реакцию. В целом, письма музыкантов дают возможность воссоздать живой и органичный облик двух композиторов разных творческих ориентаций, но искренне переживающих за музыкальное искусство. В конце статьи представлена роль Щербачёва в становлении ленинградской школы композиции. The article considers the relationship of outstanding music figures of the Russian culture VladimirV.Scherbachev and NikolayK.Medtner. The analyzed factual material is based on Scherbachevs letters to his wife Maria Illarionovna, written during a one-year trip to Pilnitz on the Elbe near Dresden 19221923. The letters reveal the atmosphere of musical culture of Germany of this period (including the production of Boris Godunov by Mussorgsky in the Dresden opera house). The author gives a detailed description of the process of Scherbachevs work on the score of the monumental symphonic canvas the Second Symphony on the poems by A.Blok, and Medtners opinion about it. In general, the letters of the two musicians give us an opportunity to recreate living and organic image of the two composers possessing different creative bearings, but sincerely worried about the music art.

scholarly journals Oculomotor activity parameters of the operator in the P300 brain computer interface and similar stimulus situations

2015 ◽  
Vol 8 (4) ◽  
pp. 134-144
Author(s):  
I.A. Basyul
Keyword(s):  
Average Length ◽  
Brain Computer Interface ◽  
Computer Interface ◽  
Similar Stimulus ◽  
The Matrix ◽  
Relationship Of ◽  
The Relationship ◽  
Visual Fixations ◽  
Oculomotor Activity ◽  
Stimulus Environment

Hypotheses about the relationship of the processes of visual perception and variations of the task in an identical stimulus environment was tested. The following tasks were tested: 1) a simple observation of the illuminations of the character in the matrix; 2) counting the number of highlights; 3) monitoring of the target symbol highlights and typing text with the P300 BCI. In a group of 14 people showed that the highest average length of visual fixation and the lowest dispersion of fixation observed for the second type of task. Statistically significant differences in the level of dispersion of visual fixations found between 1-2 and 1-3 modes; differences between the modes for the duration of fixations are at trends. Significant differences in the number of visual fixations on the target symbols wasn’t detected. The overall conclusion is the high perspective of pairing methodology brain-computer interface on the P300 wave with eye tracking to optimize the characteristics of the stimulus in the BCI environment. The differences in the parameters of oculomotor activity between the tasks reflect the level of attention concentration in the target symbols of the P300 BCI

scholarly journals IMMU-44. PRE-DIAGNOSTIC EOSINOPHIL LEVEL AND GLIOBLASTOMA DEVELOPMENT IN PATIENTS WITH AND WITHOUT ATOPIC DISEASE

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii114-ii114
Author(s):  
Omar Bushara ◽  
Alexander Guzner ◽  
Kirsten Burdett ◽  
Patrick Murday ◽  
Matias Pollevick ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Eosinophil Count ◽  
Protective Factor ◽  
Immune Cell ◽  
Atopic Disease ◽  
Wilcoxon Rank Sum Test ◽  
One Year ◽  
Relationship Of ◽  
The Relationship ◽  
Eosinophil Counts

Abstract BACKGROUND Glioblastoma (GBM) is the most common primary malignant brain tumor and carries a very poor prognosis. Recent data report a negative association between the incidence of GBM and atopic disease. The underlying immunologic mechanisms of protection and the associated potential biomarkers are unclear. The aim of this retrospective study is to assess the relationship of eosinophil count to GBM risk by collecting eosinophil count in GBM patients with and without existing atopic disease. METHODS This is a retrospective study of 790 patients diagnosed with GBM from 2009–2019. Of those patients, 140 had laboratory values at least one year prior to diagnosis. Chart review was used to exclude patients with lymphoma, leukemia, other cancers, myelodysplastic syndromes, and unconfirmed drug, food, and adhesive reactions. 14 patients with chart-confirmed allergic rhinitis, asthma, or eczema and 47 controls were found. Wilcoxon rank sum test was used to compare the two groups. RESULTS The two groups did not differ in pre-diagnostic eosinophil counts (p=0.426). The two groups also did not differ in pre-diagnostic basophil, lymphocyte, neutrophil, or monocyte counts. Pre-diagnostic eosinophil to lymphocyte, monocyte to lymphocyte, and neutrophil to lymphocyte ratios also did not differ between the two groups. There were no other quantitative differences that would suggest a difference in immune cell profile. CONCLUSIONS In our study, the subset of GBM patients with atopic disease did not significantly differ in eosinophil count or other white blood cell subtypes when compared to GBM patients without atopic disease. Given that atopic disease is a known protective factor, and our atopic patients with GBM had normal eosinophil counts, we conclude that underlying immunologic factors such as eosinophilia may be protective from GBM as opposed to simply the presence of atopic disease. Prospective analysis to best understand eosinophil count as a surrogate for GBM risk is warranted.

scholarly journals Size composition and length-weight relationships of the Yellowfin Tuna (Thunnus albacares) in Bone Bay

2020 ◽  
Vol 153 ◽  
pp. 01006
Author(s):  
Jalil ◽  
Achmar Mallawa ◽  
Faisal Amir ◽  
Safruddin
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Average Length ◽  
Fork Length ◽  
Size Composition ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Weight Measurement ◽  
Weight Relationship ◽  
The Relationship

The size composition, length-weight relationship, and condition factor of Thunnus albacares were examined in Bone Bay. Sampling was conducted at two stations, i.e., Station I at Cimpu in Luwu Regency and Station II at Lonrae in Bone Regency between July 2018 and June 2019. 10246 and 2651 yellowfin tunas were captured in Station I and Station II, respectively. Measurement of the fork length ranged between 20 cm and 192 cm with an average length of 81,257 ± 33,456 cm in Station I, and between 26 to 162 cm with an average length of 95,479 cm in Station II. The weight measurement ranged between 0,35 and 99,21 kg with an average of 14,539 kg in Station I, and between 0,46 and 97,35 kg with an average of 26,978 kg in Station II. Calculation of the relationship was based on the formula W= 5,5−5FL2,7454 (R2 = 0,963) in Station I, and W=4,1−5FL2,9103 (R2 = 0,761) in Station II. The values of condition factor at Station I and Station II were 2,1395 and 3,4374, respectively. It is quite evident that the growth pattern of the yellowfin tunas at Bone Bay was negatively allometric, indicating that the length increased faster than the weight.

Maternal infectious diseases during pregnancy and obstetric complications in the etiology of distinct subtypes of schizophrenia: further evidence from maternal hospital records

1995 ◽  
Vol 10 (7) ◽  
pp. 326-330 ◽  
Author(s):  
E Franzek ◽  
G Stöber
Keyword(s):  
Infectious Diseases ◽  
Maternity Hospital ◽  
Obstetric Complications ◽  
Perinatal Complications ◽  
Hospital Records ◽  
Maternal Recall ◽  
Genetic Loading ◽  
Relationship Of ◽  
The Relationship ◽  
Good Agreement

SummaryOn the basis of 24 maternity hospital records, the current study investigated the validity of maternal recall and the relationship of maternal infections during pregnancy and obstetric complications (OCs) to different diagnostic subgroups of endogenous psychoses on which we reported previously in this journal. Maternal recall showed good agreement to maternity hospital records in the Lewis and Murray scale (ϑ = 0.74). With regard to infectious diseases during pregnancy maternal recall and records showed a weaker, but also good correlation (ϑ = 0.18). Psychoses with low genetic loading had more OCs than psychoses with high genetic loading. Maternal infectious diseases, especially during the fourth or fifth month of gestation, were significantly allocated to Leonhard's systematic schizophrenias. Data from maternity hospital records support our report that infectious diseases during midgestation and further perinatal complications seem to be important etiologic factors in systematic forms of schizophrenia without marked familial loading.

Hubungan berat lahir anak, rasio jenis kelamin anak, dan umur induk kerbau terhadap lama kebuntingan

2020 ◽  
Vol 9 (2) ◽  
pp. 35
Author(s):  
Yendraliza Yendraliza ◽  
Muhamad Rodiallah ◽  
Zumarni Zumarni
Keyword(s):  
Birth Weight ◽  
Standard Deviation ◽  
Sex Ratio ◽  
Artificial Insemination ◽  
Average Length ◽  
Positive Correlation ◽  
Relationship Of ◽  
The Relationship ◽  
Descriptive Method

This study was conducted to determine the relationship of birth weight of calves, sex ratio of the calves, and the age of the dam to the length of pregnancy in buffaloes resulting from artificial insemination in Kampar District. The method used in this research is the descriptive method by displaying the average and standard deviation. The total number of buffaloes that were artificially inseminated in 2018 and gave birth in 2019 was 21 buffalo-cows. Data were analyzed with the Pearson Product Moment (PPM) correlation. The parameters measured in this study were the length of pregnancy, calf birth weight, calf sex ratio, and dam’s age. The results showed a positive correlation between the birth weight of the calves, sex ratio of the calves, and the age of the dam to the length of pregnancy of 1.4%, with an average length of pregnancy, calf birth weight, and sex ratio of 351.81 days, 27.38 kg, and 1: 1 respectively.

Research of Deformation in Integral Stereolithography System

2011 ◽  
Vol 321 ◽  
pp. 230-233
Author(s):  
Guang Shen Xu ◽  
Jing Gong
Keyword(s):  
Layer By Layer ◽  
Ansys Software ◽  
Reaction Heat ◽  
Simulation Process ◽  
Bridge Model ◽  
Building Condition ◽  
Relationship Of ◽  
Elastic Mechanics ◽  
The Relationship ◽  
Good Agreement

There is more reaction heat of layer curing during fabrication process, so the integral SL System has shrinkage deformation. To improve the building accuracy of integral SL System, the deformation of integral SL is analyzed, a little deflection temperature stress bending differential equation, which describe the relationship of deformation with other parameters in integral SL System, is established with elastic mechanics. The relationship of distortion deformation with layer thickness, contract rate of resin, temperature difference and locations is obtained through the equation. The deformation of a bridge model is simulated with ANSYS software in different building condition. In the simulation process, curing units are activated layer by layer with the method of elements birth and death. The simulation results are in good agreement with the equation. The research results lay a foundation for building high accuracy objects with integral SL System.

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