Results 41 to 50 of about 3,908 (258)

Effects of chronic trawling disturbance on the secondary production of suprabenthic and infaunal crustacean communities in the Adriatic Sea (NW Mediterranean)

Ciencias Marinas, 2009
Towing gears are known to produce several kinds of effects on benthic ecosystems. As small organisms and benthic species with faster growth rates and shorter life histories can withstand the fishing mortality and benefit from reduced competition or ...
A Ligas, AM De Biasi, M Demestre, L Pacciardi, P Sartor, JE Cartes   +5 more
doaj   +1 more source

Environmental Impacts of the Bioeconomy: A Systematic Review of Variables, Methods, Sectors and Policy Relevance

Sustainable Development, EarlyView.
ABSTRACT The bioeconomy has become a component of sustainability strategies addressing climate change, resource scarcity and economic transformation. Despite a growing body of literature, evidence on the environmental impacts of the bioeconomy remains fragmented, heterogeneous and distributed across sectors and regions. This paper provides a systematic
Javier Coca, Valeria Ferreira, Laia Pié
wiley   +1 more source

Bottom Trawling and Multi‐Marker eDNA Metabarcoding Surveys Reveal Highly Diverse Vertebrate and Crustacean Communities: A Case Study in an Urbanized Subtropical Estuary

Environmental DNA
Estuarine habitats serve as critical feeding and nursery grounds for many aquatic species and support fisheries. However, monitoring these complex ecosystems using conventional trawling methods is destructive, costly, and labor‐intensive.
Jack Chi‐Ho Ip, Hai‐Xin Loke, Sam King Fung Yiu, Meihong Zhao, Yixuan Li, Yitao Lin, Chun‐Ming How, Jiezhang Mo, Meng Yan, Jinping Cheng, Vincent Chi‐Sing Lai, Leo Lai Chan, Kenneth Mei Yee Leung, Jian‐Wen Qiu   +13 more
doaj   +1 more source

How do government subsidies affect the economic viability of industrial shrimp fisheries on the Amazon Continental Shelf?

Frontiers in Marine Science
The southern brown shrimp (Penaeus subtilis) is the primary crustacean species commercially exploited by the industrial trawl shrimp fleet operating over the Amazon continental shelf.
Janayna Galvão de Araújo, Marcos Antônio Souza Santos, Bianca Bentes, Ualerson Peixoto, Flávia Lucena Fredou, Victoria J. Isaac   +5 more
doaj   +1 more source

Exploring the degree of trawling disturbance by the analysis of benthic communities ranging from a heavily exploited fishing ground to an undisturbed area in the NW Mediterranean

Scientia Marina, 2011
This study focuses on 4 sites in the northwestern Mediterranean to investigate the response of benthic fauna across a gradient of trawling impact. One site was located in a heavily exploited fishing ground.
Silvia de Juan, Montserrat Demestre, Pilar Sanchez   +2 more
doaj   +1 more source

Trace Element Contamination in Top Predatory Elasmobranchs From the Southern Black Sea: Implications for Ecosystem Health and Risk Assessment

Environmental Toxicology, EarlyView.
ABSTRACT Environmental pollution resulting from the rapid increase in human population, urbanization, intensive use of chemicals in agriculture, and industrial development has reached a level that threatens natural life today. Trace elements are one of the most important factors causing significant levels of pollution in the environment and are added ...
Levent Bat, Süleyman Özdemir, Zekiye Birinci Özdemir, Ayşah Öztekin   +3 more
wiley   +1 more source

Improved trawling setup for sampling pelagic juvenile fish communities in small inland bodies of water [PDF]

Acta Ichthyologica et Piscatoria, 2018
Trawling juveniles is an effective method to estimate 0+ fish assemblages in inland bodies of water. Trawlers are usually moved between bodies of water by ground transport, which restricts the size, weight and type of the equipment able to be transported,
T. Jůza, Z. Sajdlová, M. Čech, V. Draštík, L. Kočvara, M. Tušer., J. Kubečka   +6 more
doaj   +3 more sources

Ontogeny of foraging behaviour in an opportunistic gull inhabiting urban marine ecosystems

Wildlife Biology, EarlyView.
Urbanization affects ecosystems by reducing biodiversity and displacing species from native habitats. While some suffer, others, like urban wildlife, adapt through innovative feeding and behaviours that improve their fitness in human‐altered settings. Despite research on wildlife in urban areas, the development of foraging behaviour in urban species is
Joan Navarro, Víctor Martín-Vélez, Joan Giménez, José Antonio Garcia, Pablo Cermeño, Jordi Figuerola, Raül Aymí, Tomás Montalvo   +7 more
wiley   +1 more source

The electrified benthic frame trawl (EBFT): A new approach for sampling benthic fish species in a large river – The experiences of the Joint Danube Survey 3

Frontiers in Marine Science, 2015
In large rivers, such as the Danube, standardized and representative sampling of fish is still problematic. Until now, night time shoreline electrofishing proved to be the most comprehensive fish assessment method, however, it is not suitable for ...
Ágnes Irma György, Vinzenz Bammer, Michael Schabuss, Luchezar Pehlivanov   +3 more
doaj   +1 more source

Urban bats show dietary flexibility in aquatic arthropod consumption at urban and rural waterbodies

Wildlife Biology, EarlyView.
Urban waterbodies are critical for biodiversity and provide feeding grounds for insectivorous bats. Yet, how urbanisation affects bats' food choices at urban waterbodies and the role of emergent aquatic arthropods remain poorly understood. We compared the diet of three urban bat species – Vespadelus vulturnus, Chalinolobus gouldii,and Myotis macropus –
Tanja M. Straka, Melissa E. Carew, Isabel Valenzuela, Stephen R. Griffiths, Pia E. Lentini, Linda F. Lumsden, Rahul Rane, Rodney Ree van der   +7 more
wiley   +1 more source