Results 11 to 20 of about 1,178,796 (218)

The current state of windbreaks of the Left Bank Forest Steppe of Ukraine

Ukrainian Journal of Forest and Wood Science, 2023
The relevance of the study is related to the need to determine the current state of windbreaks as a component of the forest-agrarian landscape of a particular region. The purpose of the study is to conduct a comprehensive assessment of windbreaks. During
V. Maliuha, O. Sovakov, S. Dudarets
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Age, growth and population structure of Acanthocardia tuberculata (Bivalvia: Cardiidae) in the eastern Adriatic Sea

Scientia Marina, 2012
A study of the age, growth and population structure of Acanthocardia tuberculata from the eastern Adriatic Sea was carried out. The condition index analysis identified one reproductive peak, which occurred between April and May, for a population of A ...
Melita Peharda, Daria Ezgeta-Balić, Margita Radman, Nela Sinjkević, Nedo Vrgoč, Igor Isajlović   +5 more
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Reproductive activity and biochemical composition of the pullet carpet shell Venerupis senegalensis (Gmelin, 1791) (Mollusca: Bivalvia) from Ria de Aveiro (northwestern coast of Portugal)

Scientia Marina, 2011
The present study characterizes the reproductive cycle of Venerupis senegalensis (=V. pullastra) from Ria de Aveiro (Portugal) as well as its nutrient storage and exploitation strategy.
Sandra Joaquim, Domitília Matias, Ana Margarete Matias, Paula Moura, William S. Arnold, Luís Chícharo, Miguel Baptista Gaspar   +6 more
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The influence of different microalgal diets on Crassostrea angulata (Lamarck, 1819) broodstock conditioning

Frontiers in Marine Science, 2014
The Portuguese oyster Crassostrea angulata shows great potential in oyster farming. In Europe, pure populations of this species were observed only in the southern coasts of Portugal and Spain, namely in Rio Sado, Rio Mira and Guadalquivir.
Catarina Anjos, Catarina Anjos
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Morphological and population changes of the cockle Cerastoderma glaucum in Lake Qarun, Egypt, may be driven by accelerated environmental deterioration

Journal of Taibah University for Science, 2021
The cockle Cerastoderma glaucum represents a significant element of the benthic community in Lake Qarun, Egypt. The population of this species has severely declined in the lake.
Marwa E. Abd-Alla, Afaf M. El-Gindy, Jurek Kolasa, Kandeel E. Kandeel   +3 more
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Penilaian Kondisi dan Prediksi Sisa Umur Jembatan Mahulu Kalimantan Timur Menggunakan Bridge Manajemen System (BMS)

Teknika, 2023
Jembatan adalah suatu prasarana transportasi darat yang dapat dilalui oleh kendaraan atau pejalan kaki untuk melintasi medan yang sulit seperti sungai, danau, jalan raya, jalan kereta api, dan sebagainya.
musfain musfain, Tumingan Tumingan, Sahrullah Sahrullah   +2 more
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Biological performance of the penshell Atrina maura and mussel Mytella strigata under different water flow regimes

Ciencias Marinas, 2010
Three water flow rates (3.1, 7.3, and 12.1 cm s–1) were used during a 26-day period to determine their effects on shell dimensions, tissue mass, condition index, biochemical composition of tissues, and mortality of the penshell Atrina maura and mussel ...
D Arrieche, A N Maeda-Martínez, J A Farías-Sánchez, P E Saucedo   +3 more
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Preliminary results on the biology of the European eel (Anguilla anguilla) in the European Southern tip

Frontiers in Marine Science, 2015
In the context of the European Eel Recovery Plan, managers need confident biological information based on its own geographical areas. In the specific case of Andalusia (Southern Spain), we are developing a capture-recapture experiment based in the use of
Raquel Moreno-Valcárcel
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Reproductive periods of Lucina pectinata (BIVALVE; LUCINIDAE) in the Paranaguá Estuarine Complex, Paraná - Brazil

Brazilian Journal of Biology
The objectives of the present study is to describe the size for exploitation and gonadal maturation of L. pectinata in Peças Island in Paraná coast. Twenty two individuals were sampled every month, from an intertidal flat of the Peças River, Municipality
S. W. Christo, C. S. Ivachuk, A. L. Ferreira-Júnior, T. M. Absher   +3 more
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Damage Identification of Turnout Rail through a Covariance-Based Condition Index and Quantitative Pattern Analysis

Infrastructures, 2023
Subjected to complex loadings from the wheel–rail interaction, turnout rail is prone to crack damage. This paper aims to develop a condition evaluation method for crack-alike damage detection of in-service turnout rail.
Jun-Fang Wang, Jian-Fu Lin, Yan-Long Xie
doaj   +1 more source