Microplastic pollution characteristic in surface water and freshwater fish of Gehu Lake, China

Abstract Much more attention has been poured into microplastic pollution in freshwater systems recently. In the present study, the pollution of microplastics (MPs) in surface water and freshwater fish (crucian carp, etc.) were investigated from Gehu Lake, which is the second largest lake in southern Jiangsu after Taihu Lake. The result manifested that the average abundance of MPs was respectively 6.33 ± 2.67 n/L for surface water and 10.7 items per individual for freshwater fish. The distribution of MPs in Gehu Lake varied from place to place, with the highest abundance of MPs was observed in the two estuaries of the eastern part of the lake. It was speculated that topographical factors and human factors were the main factors affecting the abundance and distribution of MPs. Transparent fibers were the main type of MPs in water samples, accounting for 69.70% of all detected particles. Meanwhile, most of the MPs ingested by freshwater fish were fibers, and the main colors were transparent and blue. In addition, the dominant size of the MPs was between 0.1 mm to 0.5 mm in water and fish samples. Moreover, PES, Man-made fiber, and PP were the dominant polymer types in the surface water and fish samples. The results of this investigation can provide basic data for the research and management of MPs in freshwater systems.

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Inequality in the distribution of 137Cs contamination within freshwater fish bodies and its affecting factors

Scientific Reports ◽

10.1038/s41598-021-85291-6 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Nobuyoshi Ishii ◽

Toshio Furota ◽

Maiko Kagami ◽

Keiko Tagami ◽

Shigeo Uchida

Keyword(s):

Nutritional Status ◽

Freshwater Fish ◽

Body Length ◽

Fish Species ◽

Crucian Carp ◽

Condition Factor ◽

Silver Carp ◽

Fresh Weight ◽

Internal Organs ◽

Fish Samples

AbstractContamination of freshwater fishes with 137Cs remains as a serious problem in Japan, nearly 10 years after the Fukushima nuclear power plant accident, but there is limited information on the distribution of 137Cs contamination in fish bodies. The 137Cs distribution can be used for the estimation of internal radiation exposure through the consumption of fish and for the dose estimation of fish themselves. In this study, the 137Cs distribution in the bodies of 8 freshwater fish species was investigated as percentages of total body burden for fish inhabiting Lake Inba. Fish samples were caught in stake nets placed close to the shore approximately once a month. After the measurement of body length and fresh weight, the radioactivities of 137Cs in muscle, internal organs, spawn, milt and bone were assayed using high-purity germanium detectors. Analysis of all fish samples showed that the 137Cs distribution was highest in muscle (54 ± 12%), followed by internal organs (7.8 ± 4.6%), spawn (7.4 ± 5.4%), milt (3.2 ± 2.1%) and bone (1.2 ± 0.58%). Among fish species, the highest proportion of 137Cs in muscle was detected in largemouth bass (71 ± 1 3%), followed by snakehead (69 ± 14%), channel catfish (63 ± 17%), common carp (62 ± 14%), barbel steed (58 ± 6.5%), silver carp (57 ± 7.7%), bluegill (53 ± 4.7%), and crucian carp (50 ± 10%). These results suggested that the 137Cs in muscle was likely to be high in piscivorous fishes compared to omnivorous fishes, especially crucian carp. The proportion of 137Cs in muscle of crucian carp was not explained either by body length or fresh weight. However, a positive correlation was found between the proportion of 137Cs in muscle and the condition factor which was an indicator of nutritional status calculated from a length–weight relationship. This correlation implied that more 137Cs accumulated in muscle tissue of a fish species with high nutritional status. This is the first study to show that condition factor is more important than body length and wet weight in explaining the high proportion of 137Cs in muscle tissues, at least for crucian carp.

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Preliminary Screening for Microplastic Concentrations in the Surface Water of the Ob and Tom Rivers in Siberia, Russia

Sustainability ◽

10.3390/su13010080 ◽

2020 ◽

Vol 13 (1) ◽

pp. 80

Author(s):

Yulia A. Frank ◽

Egor D. Vorobiev ◽

Danil S. Vorobiev ◽

Andrey A. Trifonov ◽

Dmitry V. Antsiferov ◽

...

Keyword(s):

Surface Water ◽

Arctic Ocean ◽

River System ◽

The Arctic ◽

Preliminary Screening ◽

Freshwater Systems ◽

Ob River ◽

The Arctic Ocean ◽

Abundance And Diversity ◽

Blank Spot

To date, the largest Russian rivers discharging to the Arctic Ocean remain a “blank spot” on the world map of data on the distribution of microplastics in freshwater systems. This study characterizes the abundance and morphology of microplastics in surface water of the Ob River and its large tributary, the Tom River, in western Siberia. The average number of particles for the two rivers ranged from 44.2 to 51.2 items per m3 or from 79.4 to 87.5 μg per m3 in the Tom River and in the Ob River, respectively. Of the recovered microplastics, 93.5% were less than 1 mm in their largest dimension, the largest group (45.5% of total counts) consisted of particles with sizes range 0.30–1.00 mm. Generally, microfragments of irregular shape were the most abundant among the Ob and Tom samples (47.4%) and exceeded microfibers (22.1%), microfilms (20.8%), and microspheres (9.74%) by average counts. Results from this study provide a baseline for understanding the scale of the transport of microplastics by the Ob River system into the Arctic Ocean and add to currently available data on microplastics abundance and diversity in freshwater systems of differing global geographic locations.

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Microplastic pollution characteristic in surface water and freshwater fish of Gehu Lake, China

Environmental Science and Pollution Research ◽

10.1007/s11356-021-15338-8 ◽

2021 ◽

Author(s):

Xia Xu ◽

Ling Zhang ◽

Yingang Xue ◽

Yu Gao ◽

Liping Wang ◽

...

Keyword(s):

Surface Water ◽

Freshwater Fish

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Pesticides in surface water of the Yakima River basin, Washington, 1999-2000; their occurrence and an assessment of factors affecting concentrations and loads

10.3133/wri014211 ◽

2002 ◽

Keyword(s):

Surface Water ◽

River Basin ◽

Factors Affecting ◽

Yakima River

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Risk Assessment for the Selected Surface Water Intake

Journal of Konbin ◽

10.2478/jok-2020-0079 ◽

2020 ◽

Vol 50 (4) ◽

pp. 147-163

Author(s):

Dawid Szpak ◽

Janusz R. Rak ◽

Krzysztof Boryczko ◽

Izabela Piegdoń ◽

Jakub Żywiec

Keyword(s):

Water Quality ◽

Risk Assessment ◽

Drinking Water ◽

Surface Water ◽

Water Intake ◽

Security Measures ◽

Efficient System ◽

Factors Affecting ◽

Risk Definition ◽

Water Supply Company

AbstractThe purpose of the work is to analyze the risk for surface water intake, taking into account factors affecting the water quality. A three-parameter risk definition was proposed. It was found that the analyzed water intake has an efficient system that protects consumers against drinking water of inadequate quality (multibarier system). The task of the water supply company is to maintain its security measures (including a caution and warning station, biomonitoring) in a state of efficiency.

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Nationwide study of dioxins in the freshwater fish Carassius auratus (gibelio) langsdorfii (crucian carp) in Japan: Concentrations and estimation of source contribution ratios

Chemosphere ◽

10.1016/j.chemosphere.2007.06.034 ◽

2007 ◽

Vol 69 (8) ◽

pp. 1177-1187 ◽

Cited By ~ 12

Author(s):

Yoko Kajiwara ◽

Nobuhisa Kashiwagi ◽

Kiwao Kadokami

Keyword(s):

Freshwater Fish ◽

Carassius Auratus ◽

Crucian Carp ◽

Carassius Auratus Gibelio ◽

Nationwide Study ◽

Source Contribution

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Microplastics in the Arctic: A case study with sub-surface water and fish samples off Northeast Greenland

Environmental Pollution ◽

10.1016/j.envpol.2018.08.001 ◽

2018 ◽

Vol 242 ◽

pp. 1078-1086 ◽

Cited By ~ 53

Author(s):

Silvia Morgana ◽

Laura Ghigliotti ◽

Noelia Estévez-Calvar ◽

Roberto Stifanese ◽

Alina Wieckzorek ◽

...

Keyword(s):

Surface Water ◽

The Arctic ◽

Fish Samples

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CHAPTER 8. Heavy Metals Distribution in Surface Water Samples of Taihu Lake, China

Heavy Metals In Water ◽

10.1039/9781782620174-00168 ◽

2014 ◽

pp. 168-176

Author(s):

Hou-Qi Liu ◽

Ying Liu ◽

Guang Liu ◽

Xue-Bin Yin

Keyword(s):

Heavy Metals ◽

Surface Water ◽

Water Samples ◽

Taihu Lake ◽

Surface Water Samples

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Multispecies and Watershed Approaches to Freshwater Fish Conservation

Multispecies and Watershed Approaches to Freshwater Fish Conservation ◽

10.47886/9781934874578.ch9 ◽

2019 ◽

Keyword(s):

Freshwater Fish ◽

Flood Control ◽

Freshwater Fishes ◽

Native Fish ◽

Conservation Areas ◽

Fish Conservation ◽

Freshwater Systems ◽

Partnership Development ◽

Freshwater Habitats

<em>Abstract</em>.—Texas harbors 191 species of native freshwater fishes, 48% of which are considered imperiled. The primary cause of fish species imperilment in Texas is anthropogenic alteration of freshwater systems, which continues to occur at rates and scales that threaten the long-term resiliency of freshwater habitats, species, and ecosystems. Innovative conservation approaches are needed to restore and maintain functional watershed processes, restore freshwater habitats, and conserve native species while simultaneously supporting human needs, such as flood control, municipal and agricultural water supply, water quality protection, and water-based recreation. The need for an integrated and holistic approach to conservation of freshwater systems has been the impetus for development of the Texas Native Fish Conservation Areas Network (hereafter “Texas NFCAs Network”). The Texas NFCAs Network consists of springs, ciénegas, creeks, rivers, and associated watersheds uniquely valued in preservation of Texas freshwater fish diversity. Twenty native fish conservation areas have been designated throughout the state. These were selected based on a spatial prioritization focused on identification of freshwater systems critically important to the long-term persistence of 91 freshwater fishes considered species of greatest conservation need. Through a shared vision of collaborative stewardship, conservation partnerships have formed among nongovernmental organizations, universities, and state and federal agencies to plan and deliver actions within the Texas NFCAs Network to restore and preserve native fishes and their habitats. Furthermore, the Texas NFCAs Network has increased awareness of the ecological, recreational, and economic values of Texas freshwater systems and helped increase interest and capacity of local landowners, communities, and recreational users (e.g., paddlers, anglers) to act as advocates and local stewards of these systems. By facilitating partnership development, coordinating broad-based conservation planning, and leveraging technical and financial resources toward strategic conservation investments, the Texas NFCAs Network has served as a catalyst for collaborative, science-based stewardship of native freshwater fishes and their habitats in Texas. The Texas NFCAs Network offers a successful case study in multispecies and watershed approaches to freshwater fish conservation transferrable to other states in the United States, with particular relevance to those states that, similar to Texas, consist predominately of privately owned landscapes.

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