Results 11 to 20 of about 273,699 (263)

Seasonal changes in the reproductive cycle and condition index of the surf clam Mactra stultorum (Mollusca: Bivalvia) in the Gulf of Gabes, Tunisia

open access: yesOceanological and Hydrobiological Studies, 2023
The reproductive biology of Mactra stultorum from the Gulf of Gabes was investigated monthly during a one-year period (2017). This study is the first study examining its reproductive biology during one-year in the south of Tunisia.
Derbali Abdelkarim
doaj   +1 more source

Effect of humidity on the life cycle and reproduction of Dermacentor reticulatus (Ixodidae) in laboratory mice [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2003
The reproductive cycle of Dermacentor reticulatus (Ixodidae) is described in this paper. Experimental infestation was carried out on immobilized (fixed) RAP mice and those that could move freely. Dermacentor reticulatus (D.
Darabus Gh.   +4 more
doaj   +1 more source

Inflorescence Emergence and Flowering Response of Olive Cultivars Grown in Olive Reference Collection of Portugal (ORCP)

open access: yesPlants, 2023
In olive trees, fluctuations in the onset of phenological stages have been reported due to weather conditions. The present study analyses the reproductive phenology of 17 olive cultivars grown in Elvas (Portugal) in 3 consecutive years (2012–2014 ...
Carla Inês   +2 more
doaj   +1 more source

Long distance dispersal and oceanographic fronts shape the connectivity of the keystone sponge Phakellia ventilabrum in the deep northeast Atlantic

open access: yesFrontiers in Marine Science, 2023
Little is known about dispersal in deep-sea ecosystems, especially for sponges, which are abundant ecosystem engineers. Understanding patterns of gene flow in deep-sea sponges is essential, especially in areas where rising pressure from anthropogenic ...
Sergi Taboada   +30 more
doaj   +1 more source

Blood biochemical parameters of simmental cows in different phases of reproductive cycle [PDF]

open access: yesVeterinarski Glasnik, 2011
This paper presents the values of blood biochemical parameters of Simmental cows (n = 60), divided into five groups (dry cows, early puerperium, late puerperium, the fifth month of lactation, and cows with an extended service period). The ration
Radović Bisa   +3 more
doaj   +1 more source

Reproductive cycle of Geukensia demissa (Bivalvia: Mytilidae) on a beach at Nazaret, El Moján, Zulia State, Venezuela

open access: yesCiencias Marinas, 2005
The mytilid Geukensia demissa invaded Lake Maracaibo and since it is a new species at this location, little is known about its reproductive biology.
María Báez   +2 more
doaj   +1 more source

ON THE TECHNIQUE OF MODELING ONTOGENETIC CHANGES IN FISH AND INSECTS LIFECYCLE

open access: yesСистемный анализ и прикладная информатика, 2017
The article discusses the approach to modeling of metamorphoses in the development of a number of species in the context of their influence on the success of long-term trends of population dynamics.
A. Yu. Perevaryukha
doaj   +1 more source

Female ageing and reproductive outcome in assisted reproduction cycles [PDF]

open access: yesSingapore Medical Journal, 2014
Fertility in women declines with increasing age. With the deferment of marriage and childbearing, couples are turning to assisted reproductive technology to counteract this decline. We aimed to evaluate the results of in vitrofertilisation (IVF)/intracytoplasmic sperm injection (ICSI) in women of different age groups, and highlight the cost ...
T Y, Tan, S K, Lau, S F, Loh, H H, Tan
openaire   +2 more sources

Reproductive cycle of Loxechinus albus (Echinodermata: Echinoidea) in two areas of the Magellan Region (53ºS, 70-72ºW), Chile

open access: yesScientia Marina, 1999
The reproductive cycle of the Chilean edible sea urchin, Loxechinus albus, was studied in two areas of the Magellan region, the Cockburn Channel (53°43´S, 70°42´W) and Dawson Island (53°43´S, 72°00´W). Eleven monthly samplings were carried out from April
Sylvia T. Oyarzún   +3 more
doaj   +1 more source

First episode depression in women- a study of clinical characteristics through the female reproductive stages in a rural tertiary care center in Kerala

open access: yesKerala Journal of Psychiatry, 2019
Background: The lifetime prevalence of major depressive disorders is 10-25% for women and 5-12% for men. Women are more prone to develop depressive episode from the period of menarche to the perimenopausal period. Relatively little research has been done
Joice Geo   +3 more
doaj   +1 more source

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