scholarly journals PENGARUH MUSIM TERHADAP KERAGAMAN DAN KELIMPAHAN KOPEPODA (KRUSTASEA) DI PERAIRAN MANGROVE ESTUARI T. N. UJUNG KULON, BANTEN

2010 ◽  
Vol 15 (2) ◽  
pp. 191-197
Author(s):  
Mulyadi Mulyadi ◽  
Conni M. Sidabalok
Keyword(s):  
Environmental Factors ◽  
Rainy Season ◽  
National Park ◽  
Dry Season ◽  
Copepod Community ◽  
Abundance And Distribution ◽  
The Relationship ◽  
Dry And Rainy Seasons

An observation on Copepoda diversity and abundance in three mangrove estuaries in Ujung Kulon National Park, Banten was carried out in June and November 2008. The objective of this observation was to investigate the relationship between diversity and abundance of copepods with some environmental factors which affected the distribution in dry and rainy seasons. A total of 28 species from 17 genera and 14 families of copepods were recorded. The highest density of the copepod community was recorded in June (dry season) while the lowest density was in November (rainy season). The diversity, abundance and distribution of copepods were found to be different in the three sites.

Keanekaragaman, Kelimpahan, dan Sebaran Kopepoda (Krustasea) di Perairan Bakau Segara Anakan, Cilacap

2017 ◽  
Vol 2 (2) ◽  
pp. 21 ◽  
Author(s):  
Mulyadi Mulyadi ◽  
Dewi Citra Murniati
Keyword(s):  
New Records ◽  
Dry Season ◽  
The Other ◽  
Mangrove Area ◽  
Average Abundance ◽  
Segara Anakan Lagoon ◽  
Abundance And Distribution ◽  
Relationship Of ◽  
The Relationship ◽  
Dry And Rainy Seasons

<strong>Diversity, Abundance, and Distribution of Copepods (Crustacea) in the Mangrove Area of Segara Anakan, Cilacap.</strong> Observations on the diversity of Copepods, its abundance, and its distribution in three mangrove and estuarine locations in Segara Anakan Lagoon, Cilacap, were conducted in May (dry season) and November (rainy season) 2009. This study aims to determine the relationship of diversity and abundance of Copepods with some environmental factors that affect its distribution in the dry and rainy seasons. Copepod samples were taken from Kutawaru waters, Dermaga Sleko, and Ciperet using vertical and horizontal plankton nets, day and night. They were then preserved, deposited, and identified in MZB LIPI. There were 36 species of Copepods from 18 genera and 20 families, including 10 new records. The highest species diversity of Copepods was recorded in November, while the lowest was in May. The average abundance in May was higher than in November. The diversity and abundance in Ciperet in both dry and rainy seasons were always higher than the other two sites. Acartia erythraea, A. sinjiensis and Pseudodiaptomus annandalei were found to dominate the waters especially during the dry season in May. The community composition of Copepods occupying the waters was determined by salinity, while its activity and development were determined by temperature. <br />

STUDI BIONOMIK VEKTOR MALARIA DI KECAMATAN KALIBAWANG, KULONPROGO

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Sardjito Eko Windarso dkk
Keyword(s):  
Land Use ◽  
Malaria Vector ◽  
Rainy Season ◽  
Dry Season ◽  
Physical Factors ◽  
Mosquito Vector ◽  
Anopheles Species ◽  
Commercial Farming ◽  
Study Results ◽  
Dry And Rainy Seasons

The increasing of malaria cases in recent years at Kecamatan Kalibawang has been suspected correspond with the conversion of farming land-use which initiated in 1993. Four years after the natural vegetation in this area were changed become cocoa and coffee commercial farming estates, the number of malaria cases in 1997 rose more than six times, and in 2000 it reached 6085. This study were aimed to observe whether there were any differences in density and diversity of Anopheles as malaria vector between the cocoa and mix farming during dry and rainy seasons. The results of the study are useful for considering the appropriate methods, times and places for mosquito vector controlling. The study activities comprised of collecting Anopheles as well as identifying the species to determine the density and diversity of the malaria vector. Both activities were held four weeks in dry season and four weeks in rainy season. The mea-surement of physical factors such as temperature, humidity and rainfall were also conducted to support the study results. Four dusuns which meet the criteria and had the highest malaria cases were selected as study location. Descriptively, the results shows that the number of collected Anopheles in cocoa farming were higher compared with those in mix horticultural farming; and the number of Anopheles species identifi ed in cocoa farming were also more varied than those in the mix horticultural farming.Key words: bionomik vektor malaria, anopheles,

scholarly journals Description of the larva of Bromeliagrion rehni (Odonata: Coenagrionidae) with bionomic notes concerning its phytotelmic habitat in central Amazonas, Brazil

2008 ◽  
Vol 25 (3) ◽  
pp. 479-486 ◽  
Author(s):  
Sharlene R. da S. Torreias ◽  
Ulisses G. Neiss ◽  
Neusa Hamada ◽  
Ruth L. Ferreira-Keppler ◽  
Frederico A.A. Lencioni
Keyword(s):  
Rainy Season ◽  
Environmental Parameters ◽  
Dry Season ◽  
Stage Larva ◽  
Water Volume ◽  
Apical Region ◽  
Last Stage ◽  
First Time ◽  
The Relationship

The last-stage larva of Bromeliagrion rehni Garrison in De Marmels & Garrison, 2005 is described and illustrated and bionomics and habitat information on this species are provided. The study was conducted in the Reserva Florestal Adolpho Ducke, located near Manaus, state of Amazonas, Brazil.Twelve samplings were done between April, 2003 and April, 2005: six in the rainy season and six in the dry season. In each sampling month, 12 bromeliads (Guzmania brasiliensis Ule, 1907, Bromeliaceae) were collected, six of which were terrestrial and six epiphytic, yielding144 samples. A total of 75 specimens of B. rehni were collected. The relationship between larval B. rehni abundance and the measured environmental parameters (volume (ml), pH, season and stratum) was significant (ANCOVA, F = 5.296, d.f. = 130, p < 0.001). Larvae were most abundant in the rainy season (p < 0.01) and water volume was positively related to the abundance of B. rehni. Larvae of B. rehni can be distinguished from those of B. fernandezianum (the only species in the genus with described larvae) by the number of setae in the prementum and by the color of the apical region of the femur. The association of this species with phytotelmata of G. brasiliensis is reported here for the first time.

Stable Isotopes Analysis of Precipitation in Subtropical Plateau of Yunnan

2014 ◽  
Vol 1010-1012 ◽  
pp. 1059-1063
Author(s):  
Wei Guan ◽  
Tao Fan ◽  
Xiu Qin Zhu
Keyword(s):  
Stable Isotopes ◽  
Rainy Season ◽  
Mean Value ◽  
Dry Season ◽  
Precipitation Line ◽  
Stable Isotopic ◽  
Different Seasons ◽  
Geographical Position ◽  
The Mean ◽  
The Relationship

To elucidate the relationship between stable isotopes of precipitation (SIP) and the extreme drought in Kunming area, based on the stable isotopes data of the GNIP in Kunming site from 1986 to 2003, the precipitation line equation is brought forward and the seasonal change rule of stable isotopes are discussed. The stable isotopic compositions of precipitation exhibit great diversities in different seasons during to influences of multiple factors, such as monsoon, rainfall amount moisture source and others. The δ18O values in rainwater exhibit significant seasonal variations, the average of-10.12‰ in rainy season, the dry season is-4.5‰, having lower values in the rainy season and higher one in the dry season. The amount effect of precipitation is very distinct, that concealed the temperature effect. Got the special geographical position,dvalues present unique characteristics, the average ofdvalues is 10.78‰ in rainy season, and is 4.86‰ in dry season, the mean value is generally lower than most parts of the world.

scholarly journals Studi Potensi Air Buangan Permukaan Perkotaan Sebagai Sumber Air Irigasi

2018 ◽  
pp. 19-25
Author(s):  
Binsar Silitonga
Keyword(s):  
Soil Texture ◽  
Rainy Season ◽  
Geographical Location ◽  
Growth Period ◽  
Its Region ◽  
Dry Season ◽  
Rain Water ◽  
Natural Event ◽  
The Relationship ◽  
Water Amount

Indonesia geographical location (60LU-110LS) causes most of its region experience heavy amount of rainfall. Overflowing rain water is consequently ample in amount, and potentially a great source for irrigation. Both urban and subburbs part of Medan, where some primary livelihood is in agriculture, benefit from this natural event. However the level of availability all year is not certain. Too much in rainy season means flood, and too little means drought in dry season. Farmers normally neglected the importance of storing rain water in rainy season in order to supply the dry season, and thus becomes problem for farmers. How much water can potentially be used for agriculture in urban area, what is the relationship between water amount with soil texture, types of certain-soil-suitable crop, plant growth period. This research aims to analyze and answer this particular question.

scholarly journals Hubungan Iklim Terhadap Produksi Serta Pendapatan Petani Karet di Kabupaten Padang Lawas Utara

2019 ◽  
Vol 1 (1) ◽  
pp. 56-67
Author(s):  
Irwansyah Nasution ◽  
Tumpal H.S. Siregar ◽  
Erwin Pane
Keyword(s):  
Rainy Season ◽  
Dry Season ◽  
Climate Variables ◽  
Climatic Variable ◽  
Climate Variable ◽  
The Difference ◽  
Relationship Of ◽  
Farmer Income ◽  
The Relationship ◽  
Rainy Days

This study examines the relationship of Climate Variables with Rubber Yield And Farmer Income In Three Subdistricts of Padang Lawas Utara.  This study aims to (1) to determine the effect of climate variable to rubber yield and, (2) To know the difference of farmer's income in rainy season and dry season. This research was conducted in March until May 2017. The result of research is climatic variable especially rainfall and rainy day very significant for influential  rubber yields in Three Subdistricts in Padang Lawas Utara. This may indicate that increasing rainfall amounts with higher rainy days cause a decrease in tapping days resulting in reduction of rubber productivity. There results also showed that farmers' income in rainy season difference in dry season whereas farmer income in dry season is higher than rainy season

scholarly journals Sexual behavior of 'morada nova' breeding sheep under semi-intensive rearing during the mating season in the brazilian semiarid

2017 ◽  
Vol 38 (6) ◽  
pp. 3657
Author(s):  
Luana de Fátima Damasceno dos Santos ◽  
Edgard Cavalcanti Pimenta Filho ◽  
Edilson Paes Saraiva ◽  
Dermeval Araújo Furtado ◽  
Walter Esfrain Pereira ◽  
...  
Keyword(s):  
Sexual Behavior ◽  
Sexual Behaviors ◽  
Rainy Season ◽  
Dry Season ◽  
Dry Period ◽  
Brazilian Semiarid ◽  
Intensive Rearing ◽  
Execution Frequency ◽  
Dry And Rainy Seasons ◽  
Intensive System

This study aimed to evaluate the sexual behavior of 'Morada Nova' breeding sheep reared in the Brazilian semi-arid during dry and rainy seasons in a semi-intensive system. The behavioral data were gathered from 4 rams and 114 ewes, among which 55 during the rainy season and the other 59 females in the dry season. The behavioral observations were conducted from 6 am to 5 pm, during both periods. The observations were carried out continuously and split into 'event' (execution frequency) and 'state' (execution time). During the rainy season, the breeding sheep showed the most efficient sexual behavior, with a shorter reaction time (RT) and less frequent mount attempts (MA), being of 122 sec and 2.97, respectively. However, throughout the dry period, some sexual behaviors such as sniffing the urogenital of females (SUF), penis exposure (EXP), head tossing (HT), and courting of females (FC) became more frequent, mainly in the afternoon, as with the flehmen response (FR). Male courting behavior was more evident in the rainy season during the end of the day, remaining less active during the dry period. Sexual behavior intensity in 'Morada Nova' sheep varies throughout the day, especially in the dry season.

Daily patterns in aerial activity by spinner dolphins in Fernando de Noronha

2017 ◽  
Vol 98 (5) ◽  
pp. 1151-1157 ◽  
Author(s):  
R.C. De Carli ◽  
F.J.L. Silva ◽  
J.M. Silva
Keyword(s):  
Seasonal Variations ◽  
Rainy Season ◽  
Relative Frequency ◽  
National Park ◽  
Dry Season ◽  
Body Parts ◽  
Fernando De Noronha ◽  
Spinner Dolphins ◽  
Daily Patterns

Activities displayed by animals are usually cyclic, and fluctuations in behavioural repertoires can be observed on a daily or seasonal timescale. The present study describes daily and seasonal variations in the aerial events – such as leaps, spins and slaps with body parts – by spinner dolphins in Baía dos Golfinhos, Fernando de Noronha Marine National Park, in Brazil. To measure aerial events by dolphins, we compiled and analysed data collected from January 2006 to December 2010. A total of 113,027 aerial events were recorded during 1431 days of land-based daytime observations. Our results show that the frequency of aerial events was positively correlated with the number of dolphins in the bay. The relative frequency of aerial events was higher in the rainy season, when compared with the dry season. Aerial activities also varied throughout the day, with dolphins being more active in the morning, specifically from 8:00 a.m. to 8:59 a.m., regardless of the season.

scholarly journals EFFECT OF PHOSPHORUS SUPPLEMENTATION ON PREGNANCY IN WHITE FULANI (BUNAJI) CATTLE

2021 ◽  
Vol 6 ◽  
pp. 41-46
Author(s):  
E. C. I. Molokwu ◽  
N. N. Umunna ◽  
S. M. Dennis
Keyword(s):  
Plasma Levels ◽  
Rainy Season ◽  
Practical Method ◽  
Inorganic Phosphorus ◽  
Dry Season ◽  
Phosphorus Level ◽  
Bone Meal ◽  
White Fulani ◽  
Plasma Phosphorus ◽  
Dry And Rainy Seasons

THE effect of bone meal supplementation on pregnancy and plasma phosphorus level in White Fulani (Bunaji) cattle was investigated over a 13-month period. The monthly mean plasma levels of inorganic phosphorus for supplemented Cows varied from 4.63mg/100ml in dry season to 8.09mg/100ml in the rainy season in contrast to 3.07 to 7.09/100ml in the dry and rainy seasons respectively, for the controls. Bonemeal supplementation resulted in earlier conception and calving. Fifty percent of the supplemented cows calved by the end of the period of supplementation in contrast to 25 percent of the controls. By two months after the study period, 100% of cows that received the supplementation had conceived compared with 87.50% of the controls. It is concluded from the study that bonemeal is a practical method for improving the fertility of White Fulani cattle in the grazing areas of Nigeria where soil and forage are deficient in phosphorus 

scholarly journals THE PREVALENCE AND SEASONALITY OF LIVESTOCK DISEASES IN ZARIA, NIGERIA: A TEN YEAR NECROPSY STUDY

2021 ◽  
Vol 24 (2) ◽  
pp. 192-196
Author(s):  
P. D Halle ◽  
M. A. Raji ◽  
N. D. G. Ibrahim
Keyword(s):  
Rainy Season ◽  
Seasonal Fluctuation ◽  
Dry Season ◽  
Control Measures ◽  
Seasonal Occurrence ◽  
Effective Control ◽  
Physical Injuries ◽  
Livestock Diseases ◽  
Dry And Rainy Seasons

A ten-year (1986 - 1995) record of necropsy report on diagnosed livestock diseases in Zaria, Kaduna State is evaluated to determine the prevalence and seasonal occurrence of the major livestock diseases in the Northern part of Nigeria. A total 1093 animals comprising 132 cattle, 240 goat 318 shell, 20 horses, 47 pigs and 336dogs were examined at necropsy. Some diseases such as cowdriosis, Pneumonia, Ectoparasitism, and Haemonchosis showed seasonal fluctuation while others like Babesiosis, Trypanosomiasis and physical injuries were evenly distributed throughout the year. The major problem of livestock in Zaria was Pneunonia (247 cases) with a seasonal occurrence of 38.6% and 61.31% for the dry and rainy seasons respectively. During the rainy season, cowdriosis (17.42%) in cattle, Pneumonia (25.0%, 21.10% and 20.0%) in goats, sheep and horses; gastroenteritis (14.89%) and starvation/malnutrition (14.89%) in pigs and rabies (8.93%) in dogs were the major problems. Starvation/malnutrition (4.17%) in Goats and gastroenteritis (12.5%) were more prevalent during the dry season. The relevance during of this report to effective control measures for the livestock resources in Nigeria is also highlighted.

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