scholarly journals Influência das fases da lua na abundância de Larimus breviceps na zona de arrebentação da praia de Miramar-PB

2017 ◽  
Vol 1 (36) ◽  
pp. 107 ◽  
Author(s):  
Paulo Victor Celestino Ferreira ◽  
Ana Luisa Araújo de Amorim ◽  
Willy Vila Nova Pessoa ◽  
Jonas De Assis Almeida Ramos
Keyword(s):  
Surf Zone ◽  
Full Moon ◽  
Lunar Phase ◽  
The Moon ◽  
Spatial Change ◽  
Beach Seine ◽  
Moon Phases ◽  
Distinct Area ◽  
Management Plans ◽  
Physicochemical Data

The present study aimed to investigate the possible influence of moon phases on the abundance and population structure of Larimus breviceps in the surf zone of Miramar beach. The studied area was divided into two distinct area according to the proximity to the estuary. Samples were carried out weekly, during May and June 2014. Three hauls, using a beach seine net, were conducted in each area, during each lunar phase, totaling 48 hauls at the end of the sample program. Before each sample, physicochemical data were obtained from water, as salinity, temperature, pH, conductivity and turbidity. Most of individuals caught in both areas, had length classes between 2 and 8 cm and were considered juveniles. Along the area 1, highest mean weight and length were found during the first quarter and full moon. While, in area 2 occurred during the last quarter and full moon. The individuals of juvenile stage demonstrated be influenced by the moon, showing spatial change on their catch according to lunar phases. The data obtained in this study revealed that the surf zone of Miramar work as an important nursery habitat for L. breviceps. Moreover, these data could provide support for supervisions and management plans of the local fishery

Rocket Determination of the Ultra-Violet Reflectivity of the Moon

1967 ◽  
Vol 1 (1) ◽  
pp. 11-11 ◽  
Author(s):  
J. H. Carver ◽  
B. H. Horton
Keyword(s):  
Wavelength Range ◽  
Full Moon ◽  
Ultra Violet ◽  
Lunar Phase ◽  
Atmospheric Ozone ◽  
The Moon

We have used rocket-borne photometers to determine the ultra-violet flux of the full moon in the wavelength range 2400-2900A where atmospheric ozone prevents ground-based observations. The lunar fluxes determined in two rocket firings from Woomera on 9th December, 1965, and 30th August, 1966, are summarized in the Table. The results for the two firings have been corrected to full moon values on the assumption that the lunar phase law is the same at these ultra-violet wavelengths as it is in the visible.

scholarly journals On certain variations of the mean height of the barometer, mean temperature and depth of rain, connected with the lunar phases, in the cycle of years from 1815 to 1823

1843 ◽  
Vol 4 ◽  
pp. 211-211
Keyword(s):  
Full Moon ◽  
Lunar Cycle ◽  
Lunar Phase ◽  
The Moon ◽  
Lunar Phases ◽  
Mean Temperature ◽  
The Mean ◽  
New Moon ◽  
Made In

The table given in this paper contains the results of calculations relating to the objects specified in the title; cast into periods of six, seven, or eight days, so as to bring the day of the lunar phase belonging to it in the middle of the time. The observations were all made in the neighbourhood of London. It appears from them that in the period of the last quarter of the moon the barometer is highest, the temperature a little above the mean, and the depth of rain the smallest. In the period of the new moon, both the barometer and temperature are considerably depressed, and the rain increased in quantity. The influence of the first quarter shows itself by the further depression of the barometer; but the temperature rises almost to the point from which it had fallen, and the rain still increases, but not in an equal ratio. Lastly, the full moon again reduces the temperature; while the barometer attains its maximum mean height, and the quantity of rain is the greatest. Thus it appears, that during this lunar cycle, the approach of the last quarter is the signal for the clearing up of the air, and the return of sunshine.

Activity of Microtus pennsylvanicus related to moon phase and moonlight revealed by the sand transect technique

1969 ◽  
Vol 47 (6) ◽  
pp. 1183-1186 ◽  
Author(s):  
G. J. Doucet ◽  
J. R. Bider
Keyword(s):  
Population Growth ◽  
Full Moon ◽  
Microtus Pennsylvanicus ◽  
Moon Phase ◽  
The Moon ◽  
Moon Phases ◽  
Paired Samples ◽  
Sampling Sequence ◽  
New Moon

Activity of Microtus pennsylvanicus was recorded as the number of crossings per day over a sand transect during four consecutive summers. Appropriate samples were selected to test the effects of both moon phases and moonlight on activity. Initially the results of tests comparing new moon to full moon phases showed that the voles were more active during new moon in only 3 of 10 discreet paired samples tested. However, when the effects of sampling sequence, phenology of population growth, date at which moon phases occurred, and, finally, the effect of climate were all considered as factors which could have affected the above results, it seemed reasonable to conclude that the new moon phase tended to be associated with higher activity. To establish if moonlight by itself, independent of phases, was a factor affecting the activity, tests were made during brightest and darkest nights of the lunar month and results indicated that moonlight did not affect the differences in activity found in the moon phase tests.

scholarly journals The moon phases influence on the beginning of astronomical dawn determination in Yogyakarta

2017 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Abu Yazid Raisal ◽  
Yudhiakto Pramudya ◽  
Okimustava Okimustava ◽  
Muchlas Muchlas
Keyword(s):  
Full Moon ◽  
Moving Average ◽  
Weather Condition ◽  
The Sun ◽  
The Moon ◽  
Moon Phases ◽  
Brightness Level ◽  
Sky Brightness ◽  
New Moon ◽  
The Difference

<p class="Abstract">In astronomy, there are three types of dawn. They are astronomical, nautical, and civil dawn. The sunlight is starting to appear on the east horizon when the Sun altitude is 18<sup>o</sup> below the horizon. Hence, there is a change on the sky brightness. The sky brightness can be affected by the moon phases. The sky brightness level is monitored by Sky Quality Meter (SQM). The SQM was installed upward to the zenith. There are 4 locations of measurement in Yogyakarta. The data has been collected for nine months to obtain the complete moon phases. The beginning of astronomical dawn is time when the sky brightness level is starting to decrease. The moving average algorithm was employed to determine the beginning of astronomical dawn. The time when the astronomical dawn begins is compared with the sun altitude calculation. The sun altitude calculation has been done using accurate times software. The difference of the beginning of astronomical dawn by measurement and calculation are 18.61±6.81 minutes, 19.12±3.28 minutes, 31.12±7.76 minutes, and 27.24±8.04 minutes, on the new moon (0), on the first quarter (0.25), on the full moon (0.5) and on the last quarter (0.75), respectively. The weather condition is also contributing to the results.</p>

Effect of season of the year and phase of the moon on puberty and on the occurrence of oestrus and conception in dairy heifers reared on high planes of nutrition

1980 ◽  
Vol 31 (1) ◽  
pp. 13-26 ◽  
Author(s):  
J. H. B. Roy ◽  
Catherine M. Gillies ◽  
M. W. Perfitt ◽  
I. J. F. Stobo
Keyword(s):  
Artificial Insemination ◽  
Full Moon ◽  
Live Weight ◽  
Lunar Cycle ◽  
Controlled Environment ◽  
Lunar Phase ◽  
Frequency Of Occurrence ◽  
The Moon ◽  
Marked Influence ◽  
Dairy Heifers

ABSTRACTA study of the factors that influence the age at first oestrus has been made with 57 Friesian heifers reared on high planes of nutrition in a partially-controlled environment. Although animals born during the period of increasing daylength reached puberty approximately 2 months earlier than those born during decreasing daylength, there was also a marked influence of live weight at 182 days of age and of the phase of the moon at the time of oestrus.Frequency of occurrence of first oestrus and of conception showed four distinct peaks at approximately 7-day intervals within the lunar cycle; this association between conception and lunar phase appeared to decline with increasing parity. Frequency of occurrence of artificial insemination, which reflected all suspected instances of oestrus, was also related to lunar phase. This effect of the lunar phase appears to be associated in the young heifer with 7-day cycles of oestrous activity positioned in time by the occurrence of the full moon.

scholarly journals Once after a full moon: acute type A aortic dissection and lunar phases

2021 ◽  
Author(s):  
Henrik Bjursten ◽  
Daniel Oudin Åström ◽  
Shahab Nozohoor ◽  
Khalil Ahmad ◽  
Mariann Tang ◽  
...  
Keyword(s):  
Relative Risk ◽  
Aortic Dissection ◽  
Full Moon ◽  
Type A ◽  
Temporary Increase ◽  
Lunar Phase ◽  
Acute Type ◽  
The Moon ◽  
Severe Condition ◽  
Type A Aortic Dissection

Abstract OBJECTIVES Acute type A aortic dissection (ATAAD) is a rare but severe condition, routinely treated with emergent cardiac surgery. Many surgeons have the notion that patients with ATAAD tend to come in clusters, but no studies have examined these observations. This investigation was undertaken to study the potential association between the lunar cycle and the incidence of ATAAD. METHODS We collected information on 2995 patients who underwent ATAAD surgery at centres from the Nordic Consortium for Acute Type A Aortic Dissection collaboration. We cross-referenced the time of surgery with lunar phase using a case-crossover design with 2 different definitions of full moon (&gt;99% illumination and the 7-day full moon period). RESULTS The period when the moon was illuminated the most (99% definition) did not show any significant increase in incidence for ATAAD surgery. However, when the full moon period was compared with all other moon phases, it yielded a relative risk of 1.08 [95% confidence interval (CI) 1.00–1.17, P = 0.057] and, compared to waxing moon, only the relative risk was 1.11 (95% CI 1.01–1.23, P = 0.027). The peak incidence came 4–6 days after the moon was fully illuminated. CONCLUSIONS This study found an overrepresentation of surgery for ATAAD during the full moon phase. The explanation for this is not known, but we speculate that sleep deprivation during full moon leads to a temporary increase in blood pressure, which in turn could trigger rupture of the aortic wall. While this finding is interesting, it needs to be corroborated and the clinical implications are debateable.

scholarly journals Kajian Morfometri Rajungan (Portunus pelagicus) Linnaeus, 1758 (Crustacea: Portunidae) pada Dua Fase Bulan yang Berbeda di Perairan Desa Tunggulsari, Rembang

2021 ◽  
Vol 10 (1) ◽  
pp. 109-116
Author(s):  
Wukir Berliana Pratiwi ◽  
Ria Azizah Tri Nuraini ◽  
Widianingsih Widianingsih
Keyword(s):  
Full Moon ◽  
Carapace Width ◽  
Major Influence ◽  
Lunar Phase ◽  
Exploratory Research ◽  
Moon Phase ◽  
Portunus Pelagicus ◽  
Moon Phases ◽  
Research Activities ◽  
New Moon

Fase bulan secara periodik mengalami perubahan dan menjadi faktor yang mempengaruhi perairan secara fisika, kimia, maupun biologi. Kondisi tersebut di wilayah perairan laut menimbulkan fenomena pasang surut yang memiliki pengaruh besar terhadap kehidupan biota laut seperti rajungan (Portunus pelagicus). Strategi penangkapan yang tepat dapat dilakukan dengan menentukan target satu spesies atau dengan cara melihat fase bulan. Penelitian ini bertujuan untuk melakukan kajian morfometri, nisbah kelamin, hubungan lebar berat, dan tingkat kematangan gonad rajungan (Portunus pelagicus) yang tertangkap nelayan pada fase bulan purnama dan bulan mati dari Perairan Desa Tunggulsari, Rembang. Pengambilan data dilakukan terhadap rajungan (Portunus pelagicus) yang tertangkap oleh nelayan dari perairan Desa Tunggulsari. Kegiatan penelitian dilakukan pada tanggal 9 Januari 2020, 28 Januari 2020, 10 Februari 2020, 25 Februari 2020, 10 Maret 2020, dan 24 Maret 2020. Hasil penelitian berdasarkan uji T statistik menunjukkan bahwa ada perbedaan komposisi rajungan dari fase bulan purnama dan bulan mati dengan selisih yang tidak signifikan. Rajungan yang tertangkap pada fase bulan purnama memiliki rata-rata ukuran berat dan lebar yang lebih kecil dibandingkan pada fase bulan mati. Analisis power curve hubungan lebar dan berat rajungan yang ada di perairan Desa Tunggulsari bersifat allometrik negatif yang berarti pertumbuhan lebar karapas lebih cepat dibandingkan beratnya.  The lunar phase periodically changes and becomes a factor that affects the waters physically, chemically, and biologically. These conditions in the marine waters cause tidal phenomena which have a major influence on marine life such as blue swimming crab (Portunus pelagicus). The right fishing strategy can be done by determining the target of one species or by looking at the phases of the moon. This study aims to study the morphometry, sex ratio, weight-width relationship, and maturity level of the crab gonads (Portunus pelagicus) caught by fishermen in the full moon and new moon phases of the Tunggulsari Waters, Rembang. The method used in this research is descriptive exploratory. Research activities were carried out on January 9, 2020, January 28, 2020, February 10, 2020, February 25, 2020, March 10, 2020, and March 24, 2020. The results of the study based on the statistical T test showed that there was an insignificant difference in the catch of the full moon and new moon phases. The crabs that are caught in the full moon phase have an average size of weight and width that is smaller than in the new moon phase. Analysis of the relationship between the width and weight of small crabs in the waters of Tunggulsari Waters is negative allometric, which means that the carapace width grows faster than its weight.

Self-poisoning and Moon Phases in Oslo

1986 ◽  
Vol 5 (1) ◽  
pp. 51-52 ◽  
Author(s):  
D. Jacobsen ◽  
P.S. Frederichsen ◽  
K.M. Knutsen ◽  
Y. Sørum ◽  
T. Talseth ◽  
...  
Keyword(s):  
Full Moon ◽  
The Moon ◽  
Moon Phases ◽  
Western Countries ◽  
Tidal Waves

1 During 1980 the relation between the moon phases and 1187 cases of self-poisonings in Oslo was studied. 2 In contrast to a previous report from India no significant correlation was found between the full moon and self-poisoning. 3 The aetiology of self-poisonings in western countries is rather more complex than to be explained by speculative 'human tidal waves'.

scholarly journals Lunar cycle in homicides: a population-based time series study in Finland

BMJ Open ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. e022759 ◽  
Author(s):  
Simo Näyhä
Keyword(s):  
Time Series ◽  
Negative Binomial ◽  
Full Moon ◽  
Piecewise Linear ◽  
Negative Binomial Regression ◽  
Lunar Cycle ◽  
The Moon ◽  
Moon Phases ◽  
Time Series Study ◽  
Series Study

ObjectiveTo test whether homicides in Finland vary according to moon phases.DesignA time series study.SettingFinland.Participants6808 homicides committed in 1961–2014.OutcomeDaily numbers of homicides.MethodThe daily numbers of homicides were related to eight moon phases and the illuminated percentage of the moon disc using negative binomial regression. To identify lunar patterns, piecewise linear terms of lunar days were used, together with changes from one moon phase to another. Homicides were similarly regressed on quintiles of the illuminated percentage of the moon disc. A periodic term of length 29.53 days was included to detect cyclic patterns. The results were adjusted for sex, age, secular trend, distance from the moon, seasons, weekday, major holidays and temperature.ResultsDuring the full moon, 15% less homicides were committed than during the new moon (RR 0.85; 95% CI 0.77 to 0.94) and 86% less during the lightest quintile of illumination compared with the darkest quintile (RR 0.14; 95% CI 0.04 to 0.50). Adjustments did not change the results. Piecewise linear regressions showed a significant decline in homicides at the full moon and a rise thereafter. The full moon drop in homicides was directionally similar for seasons, weekdays, sex, age and time periods, and it was particularly pronounced in the early part of period studied (1961–1974). Periodic regression showed a regular cyclic pattern of length 29.53 days (p~0.035).ConclusionsContrary to current scientific opinion, an association exists between moon phases and homicides, and contrary to what has been previously assumed, homicides declined during the full moon, especially in earlier decades. However, the causality of the association remains elusive.

scholarly journals Secular pattern of aneurismal rupture with the lunar cycle and season

2016 ◽  
Vol 23 (1) ◽  
pp. 60-63 ◽  
Author(s):  
Jillian C Banfield ◽  
Mohamed Abdolell ◽  
Jai S Shankar
Keyword(s):  
Intracranial Aneurysm ◽  
Intracranial Aneurysms ◽  
Full Moon ◽  
Lunar Cycle ◽  
Aneurysm Rupture ◽  
Endovascular Coiling ◽  
The Moon ◽  
Moon Phases ◽  
Ruptured Intracranial Aneurysm ◽  
New Moon

Background The lunar cycle and seasons may be associated with rates of rupture of intracranial aneurysms, but the literature is mixed. Studies of the association between the lunar cycle and rates of aneurysm rupture used the eight qualitative moon phases. The purpose of this study was to assess any association of aneurysm rupture with the lunar cycle and with the season. Materials and methods We retrospectively reviewed all cases of subarachnoid haemorrhage secondary to ruptured intracranial aneurysm treated with endovascular coiling in our institution over a 10-year period. We included only cases with a known rupture date. We used the degree of illumination of the moon to quantitatively code the lunar cycle. Results A total of 212 cases were included in our analyses. The odds of aneurysm rupture were significantly greater ( p < 0.001) when the moon was least (new moon) and most (full moon) illuminated, as compared to the middle of the lunar cycle. The odds of rupture tended to be higher ( p = 0.059) in the summer, compared to autumn. Conclusions The odds of aneurysm rupture were greater when the moon was least illuminated (new moon) and most illuminated (full moon), compared to the middle of the lunar cycle.

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