Results 61 to 70 of about 367 (169)

Reproductive Biology and Spawning Patterns of Polynemus melanochir: Implications for Conservation and Population Management

International Journal of Zoology, Volume 2025, Issue 1, 2025.
Understanding the reproductive biology of Polynemus melanochir is essential for conservation purposes and a sustainable management perspective for this species in the Mekong River system. The current study investigates patterns of ovarian histology in this species along with spawning season, fecundity, and maturity stages in female specimens caught in ...
Lam Thi Thao Vo, Anh Ngoc Tran, Tran Thi Huyen Lam, Quang Minh Dinh, Gieo Hoang Phan, Ton Huu Duc Nguyen, Joao Pedro Barreiros   +6 more
wiley   +1 more source

Frequency and ecological risk of microplastics and mesoplastics in the soil of residential areas near Tehran landfill in 2021

سلامت و محیط, 2022
Background and Objective: Among the emerging contaminants, microplastics threaten public health. This study aimed to determine microplastic and mesoplastics in soil of residential areas adjacent to Tehran Landfill and assess its ecological risk ...
Mohamad Mehdi Ghorbaninejad Fard Shirazi, Sakine Shekoohiyan, Gholamreza Moussavi, Mohsen Heidari   +3 more
doaj  

Potential Ecological Risk and Characterization of Floating Microplastics in the Surface Water of a Highly Urbanized Large River in Southeast Asia

Scientifica, Volume 2025, Issue 1, 2025.
Microplastics (MPs) are widespread in aquatic environments and pose significant threats to ecosystems, wildlife, and human health. While MP pollution in water has received considerable attention, there is still limited understanding of its regional distribution, shapes, and associated risks. The Jamuna River, one of the largest freshwater ecosystems in
Mohammad Abdul Momin Siddique, Samsun Naher, Nazrul Islam, Md. Yeamin Hossen, Sayma Tabassum, Azad Uddin, Koushik Das, M. Safiur Rahman, Chengcheng Xia   +8 more
wiley   +1 more source

Experimental study of buoyant macro- and mesoplastic trapping by Spartina maritima

Marine Pollution Bulletin
A set of laboratory experiments was conducted to assess the trapping efficiency of buoyant plastic debris by the estuarine vegetation Spartina maritima. Different hydrodynamic conditions typical of salt marshes were simulated in a hydraulic flume. These conditions included varying water levels between 40% and 90% of stem height, wind speeds up to 2 m/s,
Nuñez Perez, Paula, Pérez García, Laura, Rezaee, Seyed Meysam, Bárcena Gómez, Javier Francisco, García Gómez, Andres   +4 more
openaire   +3 more sources

Effects of polyester microplastics and naproxen on lettuce growth and development and soil abiotic factors

Agrosystems, Geosciences &Environment, Volume 7, Issue 4, December 2024.
Abstract Microplastics (MPs), formed from the physical breakdown of larger plastics, have been found across a variety of ecosystems. Much research has been done on the effects of MPs in aquatic ecosystems, but fewer studies have explored their effects in terrestrial environments, particularly in agroecosystems where modern practices contribute strongly
Andy Chen, Pamela Jane Victoria A. Barroso, Jennifer Tran, Ashley K. Gance, Miranda A. Kearney   +4 more
wiley   +1 more source

The role of hydrodynamic fluctuations and wind intensity on the distribution of plastic debris on the sandy beaches of Paraná River, Argentina

, 2021
Plastic in the environment is considered an emerging pollutant of global concern. In spite of intensive research, many questions remain open, such as the processes that drive the deposition and remobilization of plastic debris on river beaches.
Stéphane, Rodrigues, González Fernández, Daniel, Garello, Nicolás, Blettler, Martín C.M., Wantzen, Karl M., Garello, Nicolás Andrés, González-Fernández, Daniel, Blettler, Martin Cesar Maria, Wantzen, Karl Matthias, Espínola, Luis Alberto, Espínola, Luis A., Rodrigues, Stéphane, Karl M. Wantzen, Luis A. Espínola, Martín C.M. Blettler, Daniel González-Fernández, Stephane Rodrigues, Nicolás Garello   +17 more
core   +1 more source

Plastic litter is a part of the carbon cycle in an urban river: Microplastic and macroplastic accumulate with organic matter in floating debris rafts

Water Environment Research, Volume 96, Issue 9, September 2024.
Microplastic and macroplastic litter was found at higher densities with floating organic matter rafts in an urban river. Converting measurements of plastic litter to units of mass of carbon in plastic is needed for direct comparisons to organic matter and to understand plastic litter as part of the carbon cycle.
Timothy J. Hoellein, Bailey A. Schwenk, Elizabeth M. Kazmierczak, Fritz Petersen   +3 more
wiley   +1 more source

Mesoplasticity approach to studies of the cutting mechanism in ultra-precision machining

Chinese Journal of Mechanical Engineering, 2014
There have been various theoretical attempts by researchers worldwide to link up different scales of plasticity studies from the nano-, micro- and macro-scale of observation, based on molecular dynamics, crystal plasticity and continuum mechanics. Very few attempts, however, have been reported in ultra-precision machining studies.
Rongbin W. B. Lee, Hao Wang, Suet To, Chi Fai Cheung, Chang Yuen Chan   +4 more
openaire   +1 more source

Macrodebris and mesoplastic data collection from six sandy beaches on São Vicente, Cape Verde, collected May – July, 2023

We assessed the composition and abundance of macrodebris items as well as of mesoplastic particles on six sandy beaches on the island of São Vicente, Cape Verde, in the time period from May to July 2023.
Lenz, Mark, Fernandes Dos Reis, Odair, Meyer, Anna Natalie, Acksen, Sina   +3 more
core   +1 more source

Thermogravimetric analysis and kinetic study of marine plastic litter

, 2016
Meeresmüll ist nicht bloß ein ästhetisches Problem, sondern ein ökologisches und ökonomisches welches weltweit Schäden verursacht. Um ein solches komplexes Problem zu lösen, gibt es viele Ansätze und einer von ihnen ist es, einen Pyrolyse-Reaktor zu ...
Bonell, Leonora
core   +2 more sources