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Go big or … don't? A field-based diet evaluation of freshwater piscivore and prey fish size relationships

freshwater piscivorous taxa: crappie (Pomoxis spp.), largemouth bass (Micropterus salmoides), muskellunge (Esox masquinongy), northern pike (Esox lucius), rock bass (Ambloplites rupestris), smallmouth bass ... In the largest analysis of predator-prey body mass ratios across ecosystems (i.e., terrestrial, marine, freshwater) and predator types (invertebrate, ectothermic vertebrate, and endothermic vertebrate

Fluorescence techniques for the determination of polycyclic aromatic hydrocarbons in marine environment: an overview

, Faculty of Marine Sciences, University of Las Palmas de G.C. , 35017 Las Palmas de G.C. , Spain Polycyclic Aromatic Hydrocarbons (PAHs) are compounds of great environmental interest because of their ... potential carcinogenic and mutagenic activity and their frequent occurrence in the environment, above all in the marine environment. Therefore it is an important to establish simple, sensitive and reliable

Metagenomic analysis of soil and freshwater from zoo agricultural area with organic fertilization

community analysed here. Conversely, genes for nitrogen fixation were abundant in freshwater, indicating that the N-fixation plays a crucial role in this particular ecosystem. Moreover, pathogenicity islands ... 1 0 Department of Technology, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences , Jaboticabal, São Paulo State, Brazil, 2 Centre for Marine Bio-Innovation

Worldwide sampling reveals low genetic variability in populations of the freshwater ciliate Paramecium biaurelia (P. aurelia species complex, Ciliophora, Protozoa)

-Gądek 0 Ewa Przyboś 0 0 Institute of Systematics and Evolution of Animals, Polish Academy of Sciences , Sławkowska 17, 31-016 Kraków , Poland 1 Sebastian Tarcz Species (or cryptic species ... sciences (Kodama and Fujishima 2014; Picariello et al. 2014; Tomazic et al. 2014; Benbouzid et al. 2015) , data from populations of particular species living in natural habitats remain scarce (Katz and

Arctic marine conservation is not prepared for the coming melt

Arctic countries to “Advance the protection of large areas of ecologically important marine, terrestrial and freshwater habitats, taking into account ecological resilience in a changing climate” (CAFF ... . , Ward , T. , and Watson , R. 2014 . Reinventing residual reserves in the sea: are we favouring ease of establishment over need for protection? Aquatic Conservation: Marine and Freshwater Ecosystems , 25

The art of co-production of knowledge in environmental sciences and management: lessons from international practice

This review paper addresses the challenging question of “how to” design and implement co-production of knowledge in climate science and other environmental and agricultural sciences. Based on a ... , Environment, and Spatial Sciences (GESS), Michigan State University , East Lansing, MI 48824 , USA 1 School of Geography and Development, University of Arizona , Tucson, AZ , USA 2 Ida Nadia S. Djenontin This

Optimum water depth ranges of dominant submersed macrophytes in a natural freshwater lake

freshwater lake were determined. ... Sciences (CRAES) , Beijing, China, 2 Ecology Department , College of Bioscience & Biotechnology, Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Hunan Agricultural University

Valuable natural products from marine and freshwater macroalgae obtained from supercritical fluid extracts

extraction compared to freshwater. All these findings show that marine and freshwater macroalgae, as a raw material, have the optimal biologically active compounds composition for cosmetics. ... extracts from the biomass of marine (Ulva clathrata, Cladophora glomerata, Polysiphonia fucoides, and their multi-species mixture) and freshwater (C. glomerata) macroalgae. Different extraction techniques

Long-term exposure to acidification disrupts reproduction in a marine invertebrate

( 2 Department of Marine Sciences ± TjaÈ rnoÈ , University of Gothenburg, TjaÈrnoÈ , StroÈ mstad, Sweden, 2 Alfred- Wegener-Institut, Helmholtz-Zentrum fuÈ r Polarund Meeresforschung

No-take marine reserves are the most effective protected areas in the ocean

Marine protected areas (MPAs) are an essential tool for reversing the global degradation of ocean life. Hence, it is important to know which types of MPAs are more effective, and under which

Sorption of pentachlorophenol (PCP) in the marine bottom sediments—batch sorption experiment at varying pressure

pressure (6000 hPa) simulating conditions at the water depth of 50 m. The sorption of PCP was examined in an artificial environment (microcosm) consisting of the marine water and the bottom sediments from a ... ), soil, mineral (montmorillonite), and various types of biomasses; and (II) marine or freshwater, deionized water, or artificially created water on the basis of typical electrolytes (CaCl2, MgCl2) with the

Micro- and Nanoplastic Pollution of Freshwater and Wastewater Treatment Systems

environment while scarce knowledge exists of freshwater systems. Because the majority of marine debris originates on land, the role of wastewater treatment systems and natural fluvial vectors in delivering ... organs, debilitation and ultimately death (see review by Derraik [21]). Similarities in MNP ingestion by freshwater organisms to marine fauna has been observed [8, 50, 82, 86] (see review by Eerkes-Medrano

How many sightings to model rare marine species distributions

Despite large efforts, datasets with few sightings are often available for rare species of marine megafauna that typically live at low densities. This paucity of data makes modelling the habitat of ... predictive performance than for the broader habitat taxon. To generate reliable habitat modelling predictions for rarely sighted marine predators, our results suggest (1) using GAMs with a Tweedie distribution

Zebrafish-based identification of the antiseizure nucleoside inosine from the marine diatom Skeletonema marinoi

nuclear magnetic resonance and high-resolution spectrometry. These results highlight the potential of zebrafish-based screening and bioassay-guided fractionation to identify neuroactive marine natural ... Biomedicine, Universite du Luxembourg , Belvaux , Luxembourg 1 School of Pharmaceutical Sciences, EPGL, University of Geneva, University of Lausanne, Genève, Switzerland, 2 Integrative Marine Ecology

Characteristics of meiofauna in extreme marine ecosystems: a review

Extreme marine environments cover more than 50% of the Earth’s surface and offer many opportunities for investigating the biological responses and adaptations of organisms to stressful life ... constantly find meiofauna organisms. Meiofauna is a collective name for a diverse assemblage of eukaryotic organisms found in both freshwater ecosystems and the marine realm (Mare 1942; Higgins and Thiel 1988

Seasonal variability in the persistence of dissolved environmental DNA (eDNA) in a marine system: The role of microbial nutrient limitation

minimal influence. The present study demonstrates significant seasonal variability in the persistence of d-eDNA in a natural marine environment that can be linked to the metabolic response of microbial ... OC , Sivaganesan M , Haugland RA , Field KG . Differential decay of human faecal Bacteroides in marine and freshwater . Environ Microbiol . 2011 ; 13 : 3235 ± 3249 . 1111/j.1462

Mass coral bleaching due to unprecedented marine heatwave in Papahānaumokuākea Marine National Monument (Northwestern Hawaiian Islands)

2014 marked the sixth and most widespread mass bleaching event reported in the Northwestern Hawaiian Islands, home to the Papahānaumokuākea Marine National Monument (PMNM), the world’s second largest ... , United States of America 1 Hawai`i Institute of Marine Biology, Kāne`ohe, Hawai`i, United States of America, 2 Ecosystem Sciences Division, Pacific Islands Fisheries Science Center , NOAA, Honolulu, Hawai

Marine litter plastics and microplastics and their toxic chemicals components: the need for urgent preventive measures

Persistent plastics, with an estimated lifetime for degradation of hundreds of years in marine conditions, can break up into micro- and nanoplastics over shorter timescales, thus facilitating their ... Marine Environment and the Coastal Region of the Mediterranean, Stockholm Convention Regional Activity Centre in Spain , Barcelona , Spain 2 POPs Environmental Consulting , Schwäbisch Gmünd , Germany 3

Direct and indirect effects of different types of microplastics on freshwater prey (Corbicula fluminea) and their predator (Acipenser transmontanus)

We examined whether environmentally relevant concentrations of different types of microplastics, with or without PCBs, directly affect freshwater prey and indirectly affect their predators. Asian ... mechanisms of exposure and exposure durations). Moreover, only a few studies have measured effects on freshwater organisms [15±18]. Most studies thus far still have focused on marine animals. Finally, few

Conservation of freshwater bivalves at the global scale: diversity, threats and research needs

Bivalves are ubiquitous members of freshwater ecosystems and responsible for important functions and services. The present paper revises freshwater bivalve diversity, conservation status and threats ... . Aquatic Conservation: Marine and Freshwater Ecosystems . Stoeckle , B. C. , R. Kuehn & J. Geist , 2016 . Environmental DNA as a monitoring tool for the endangered