Coştei Hydrographic Diversion Node, a Historical Environment Quality and Biological Resources Accessibility Game Changer; Anthropogenic Induced Problems and Sustainable Solutions ‒ An Ichthyologic Perspective

Abstract 26 fish species were affected by the Coştei historical diversion hydrotechnical system build in 1758. In order to mitigate the negative effects produced by this hydrotechnical work on the fish, a migration system, of nature-like meandering by pass type was proposed. The dimensions of this channel and the slope of about 2% allow fish, and other aquatic organisms to move upstream and downstream of the spillway.

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An Overview on the Potential Hazards of Pyrethroid Insecticides in Fish, with Special Emphasis on Cypermethrin Toxicity

Animals ◽

10.3390/ani11071880 ◽

2021 ◽

Vol 11 (7) ◽

pp. 1880

Author(s):

Mayada R. Farag ◽

Mahmoud Alagawany ◽

Rana M. Bilal ◽

Ahmed G. A. Gewida ◽

Kuldeep Dhama ◽

...

Keyword(s):

Fish Species ◽

Water Contamination ◽

Aquatic Organisms ◽

Mechanisms Of Action ◽

Review Article ◽

Plant Diseases ◽

Aquatic Weeds ◽

Public Health Importance ◽

Pyrethroid Insecticides ◽

Great Public Health

Pesticides are chemicals used to control pests, such as aquatic weeds, insects, aquatic snails, and plant diseases. They are extensively used in forestry, agriculture, veterinary practices, and of great public health importance. Pesticides can be categorized according to their use into three major types (namely insecticides, herbicides, and fungicides). Water contamination by pesticides is known to induce harmful impacts on the production, reproduction, and survivability of living aquatic organisms, such as algae, aquatic plants, and fish (shellfish and finfish species). The literature and information present in this review article facilitate evaluating the toxic effects from exposure to various fish species to different concentrations of pesticides. Moreover, a brief overview of sources, classification, mechanisms of action, and toxicity signs of pyrethroid insecticides in several fish species will be illustrated with special emphasis on Cypermethrin toxicity.

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STRUCTURE AND DYNAMICS OF CATCHES OF THE SHURYSHKARSKY DISTRICT OF THE YAMALO-NENETS AUTONOMOUS OKRUG

Сборник избранных статей по материалам научных конференций ГНИИ «Нацразвитие» (Санкт-Петербург, Июль 2021) ◽

10.37539/july318.2021.74.17.014 ◽

2021 ◽

Author(s):

Наталья Васильевна Смолина ◽

Ольга Андреевна Гарбузова

Keyword(s):

Fish Species ◽

Biological Resources ◽

Autonomous District ◽

Commercial Importance ◽

Structure And Dynamics ◽

Dynamics Of Catches ◽

Catch Statistics ◽

Nenets Autonomous

Анализ статистики уловов Шурышкарского района показал, что в 2015-2020 гг. промысловое значение имели 12 видов рыб, обеспечивая уловы от 8,6 до 10,1 тыс. тонн. Наибольший вклад в уловы по району вносили щука (47 %) и язь (27 %), доля сиговых в этот период снизилась с 22 до 11 %. Доля района в освоении биоресурсов ЯНАО возросла с 13 до 23 %, вклад в общие уловы щуки, леща, язя, окуня и карася в отдельные годы превышал 30 %. The analysis of catch statistics of the Shuryshkarsky district showed that in 2015-2020, 12 fish species were of commercial importance, providing catches from 8.6 to 10.1 thousand tons. The largest contribution to catches in the region was made by pike (47 %) and ide (27 %), the share of whitefish in this period decreased from 22 to 11 %. The share of the district in the development of biological resources of the Yamalo-Nenets Autonomous District increased from 13 to 23 %, the contribution to the total catches of pike, bream, ide, perch and crucian in some years exceeded 30 %.

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Assessment of heavy metal’s in Atlantic sea fish sold in Benin

International Journal of Biological and Chemical Sciences ◽

10.4314/ijbcs.v14i5.28 ◽

2020 ◽

Vol 14 (5) ◽

pp. 1853-1861

Author(s):

Elisabeth Yehouenou Azehoun Pazou ◽

Judicaël Azehoun Pazou ◽

Mahoudjro Roméo Adamou

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Human Health ◽

Fish Species ◽

Health Impact ◽

Atomic Absorption Spectrophotometry ◽

Negative Effects ◽

Fresh Fish ◽

Sources Of Pollution ◽

Metal Levels

Marine space is constantly threatened by various sources of pollution that may reduce its economic potential and have negative repercussions on human health. This study aims to assess heavy metals contamination of eight fish species and their impact on human health. Heavy metals such as cadmium, lead, copper and zinc were determined by atomic absorption spectrophotometry in fresh, cooked and fried fish. The results found in fresh fish (cadmium: 0.002 to 0.005 mg / kg, lead: 0 to 0.031 mg / kg, copper: 0.0045 to 0.305 mg / kg, zinc: 0.1245 to 0.6195 mg / kg), in cooked fish (cadmium: 0.0035 to 0.005 mg / kg, lead: 0 to 0.01 mg / kg, copper: 0 to 0.021 mg / kg, zinc: 0.171 to 0.327 mg / kg) and in fried fish (cadmium: 0.004 mg / kg, lead: 0 to 0.007 mg / kg, copper: 0 to 0.016 mg / kg, zinc: 0.0875 to 0.5065 mg / kg) showed that heavy metal levels are all below the standard values accepted by FAO / WHO. The consumption of these fish could therefore have no negative effect on the population’s health. Both types of cooking have both positive and negative effects on the heavy metal reduction in fish species. Although the concentrations of heavy metals are not worrying, the vigilance of the populations and a variation of the diet are important to guarantee a better health.Keywords: Heavy metals, health impact, Atlantic see fish, Cotonou.

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A statistical and spatial analysis of chemical contaminants in Cocos Lagoon, Guam

Journal of Student Research ◽

10.47611/jsr.vi.371 ◽

2017 ◽

Author(s):

Char'Mane Robinson ◽

Andrew Mason

Keyword(s):

Human Health ◽

Fish Species ◽

Aquatic Organisms ◽

Fish Tissue ◽

Coast Guard ◽

Tissue Samples ◽

Chemical Contaminants ◽

Health Concerns ◽

Adverse Health Effects ◽

Cocos Island

Cocos Lagoon is located on the southwestern end of the coast of Guam, and contains extensive coral reefs and an array of fish species. Within the Lagoon is a former US Coast Guard LORAN station on Cocos Island. Hazardous materials appear to have been disposed of on land and in near shore waters during the operation of the LORAN station, between the years of 1944 and 1963, exposing surrounding waters, sediment, fish species and humans to these materials. As part of a project to quantify chemical contaminants in Cocos Lagoon, and to address local and agency human health concerns, approximately 190 chemical contaminants were analyzed in sediments from 25 sites, along with 27 fish tissue samples from 16 sites. Higher levels of chemical contaminants were found in fish tissues collected from around Cocos Island, the site of the former LORAN station. Concentrations of polychlorinated biphenyls (PCBs), for example, were above an EPA recreational fishers’ screening value (SV) in some fish species from around Cocos Island, indicating risk to humans consuming fish from this area. PCBs at high concentrations are known to cause negative effects on resident marine aquatic organisms and human health concerns include cancer. Characterizing contaminant impacts to aquatic marine organisms and possible human health results from this project will provide resource managers with key information needed to make effective decisions for the health of Cocos Lagoon and also gauge the efficacy of restoration activities. The results show high levels of PCBs in the fish species from Coco Lagoon. This indicates that there is a high risk of adverse health effects such as cancer if consumed by humans.

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Post-Covid-19 Pandemic Awareness on The Use of Micro- and Nano Plastic and Efforts into Their Degradation - A Mini Review

Journal of Tropical Life Science ◽

10.11594/jtls.11.02.12 ◽

2021 ◽

Vol 11 (2) ◽

pp. 225-232

Author(s):

Ekwan Wiranto ◽

◽

Amira Rozdhl ◽

Nafizatun Hanafi ◽

Rabiatul Redzuan ◽

...

Keyword(s):

Circulatory System ◽

Aquatic Organisms ◽

Living Organism ◽

Global Scale ◽

Trophic Levels ◽

Negative Effects ◽

Debris Particles ◽

Characteristic Effect ◽

Living Organisms ◽

Global Threat

Micro- and nanoplastic pollution possess a global threat and cause a future problem and needs greater attention. Its pollution is also exacerbated recently by the use of abundance of plastic polymers in efforts to prevent and handle COVID-19 pandemic at the global scale. This review covered the major concerns about the characteristic, effect and bioremediation of micro- and nanoplastics of post COVID-19. Based on size, microplastic is described as debris particles smaller than 5 mm whereas, nanoplastic is referred to any particles smaller than 100 nm. Micro- and nanoplastic are easily ingested by many aquatic organisms at different trophic levels. This ingestion caused negative health impacts to all living organisms. Microplastic direct effect on living organism for example mechanical injury, false satiation, declined growth, promoted immune response, energy loss, disrupted enzyme activity and production, decreased fecundity, production of oxidative stress, and mortality. Nanoplastic could enter the circulatory system and caused negative effects on the cellular and molecular levels. Bioremediation of microplastic by magnoliophyta, bacteria, fungus and algae on several polymer forms was previously reported, however, not many on nanoplastic biodegradation. Therefore, current review will focus on the characteristics, effect and bioremediation effort of micro- and nanoplastic.

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The distribution and effects of microbeads on host-parasite interactions of Ontario wetland fauna: tadpoles, snails and trematodes

10.32920/ryerson.14646969.v1 ◽

2021 ◽

Author(s):

Mary Katherine Claudia Balsdon Balsdon

Keyword(s):

Aquatic Organisms ◽

Chlorella Pyrenoidosa ◽

Leopard Frog ◽

Negative Effects ◽

Long Time ◽

Negative Effect ◽

Host Parasite ◽

Leukocyte Profiles ◽

Echinostoma Trivolvis ◽

Many Particles

Plastic microbeads pose an environmental problem as they easily enter into waterbodies, take a long time to break down, and their ingestion can have negative effects on aquatic organisms. I found that microbead consumption had a significant negative effect on the growth of northern leopard frog (Lithobates pipiens) tadpoles, as well as their susceptibility to trematode parasite (Echinostoma trivolvis) infection, but minimal effects on leukocyte profiles and infection tolerance. Freshwater snails (Stagnicola elodes) given microbead diets exhibited a non-monotonic response in their production of trematode (Haematolechus parviplexus) infectious stages, with those in the highest microbead treatment tending to exhibit greater growth and shorter longevity. I also found that algae (Chlorella pyrenoidosa) and microbeads created density-dependent aggregations that could be a potential ingestion pathway for herbivorous fauna. Lastly, I found many particles in Ontario wetlands and ponds that may be used for controlled pesticide release, thus potentially posing a threat.

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Toxicity and Functional Tissue Responses of Two Freshwater Fish after Exposure to Polystyrene Microplastics

Toxics ◽

10.3390/toxics9110289 ◽

2021 ◽

Vol 9 (11) ◽

pp. 289

Author(s):

Martha Kaloyianni ◽

Dimitra C. Bobori ◽

Despoina Xanthopoulou ◽

Glykeria Malioufa ◽

Ioannis Sampsonidis ◽

...

Keyword(s):

Dna Damage ◽

Freshwater Fish ◽

Fish Species ◽

Biological Effects ◽

Perca Fluviatilis ◽

Aquatic Organisms ◽

Gill Tissue ◽

Holistic Approach ◽

Protein Carbonyls ◽

Chemical Additives

Microplastics (MPs)’ ingestion has been demonstrated in several aquatic organisms. This process may facilitate the hydrophobic waterborne pollutants or chemical additives transfer to biota. In the present study the suitability of a battery of biomarkers on oxidative stress, physiology, tissue function and metabolic profile was investigated for the early detection of adverse effects of 21-day exposure to polystyrene microplastics (PS-MPs, sized 5–12 μm) in the liver and gills of zebrafish Danio rerio and perch, Perca fluviatilis, both of which are freshwater fish species. An optical volume map representation of the zebrafish gill by Raman spectroscopy depicted 5 μm diameter PS-MP dispersed in the gill tissue. Concentrations of PS-MPs close to the EC50 of each fish affected fish physiology in all tissues studied. Increased levels of biomarkers of oxidative damage in exposed fish in relation to controls were observed, as well as activation of apoptosis and autophagy processes. Malondialdehyde (MDA), protein carbonyls and DNA damage responses differed with regard to the sensitivity of each tissue of each fish. In the toxicity cascade gills seemed to be more liable to respond to PS-MPs than liver for the majority of the parameters measured. DNA damage was the most susceptible biomarker exhibiting greater response in the liver of both species. The interaction between MPs and cellular components provoked metabolic alterations in the tissues studied, affecting mainly amino acids, nitrogen and energy metabolism. Toxicity was species and tissue specific, with specific biomarkers responding differently in gills and in liver. The fish species that seemed to be more susceptible to MPs at the conditions studied, was P. fluviatilis compared to D. rerio. The current findings add to a holistic approach for the identification of small sized PS-MPs’ biological effects in fish, thus aiming to provide evidence regarding PS-MPs’ environmental impact on wild fish populations and food safety and adequacy.

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First report of Paracoccidioides brasiliensis infection in fish

Medical Mycology ◽

10.1093/mmy/myz120 ◽

2019 ◽

Vol 58 (6) ◽

pp. 737-743

Author(s):

Igor Massahiro de Souza Suguiura ◽

Rafaela Macagnan ◽

Aline Myuki Omori ◽

Elder Luis Buck ◽

Josiane Aniele Scarpassa ◽

...

Keyword(s):

Latin American ◽

Fish Species ◽

Nile Tilapia ◽

Paracoccidioides Brasiliensis ◽

Aquatic Organisms ◽

Yeast Cells ◽

Molecular Evidence ◽

Serum Samples ◽

Tissue Samples ◽

First Report

Abstract The thermodimorphic fungus Paracoccidioides brasiliensis is the etiological agent of paracoccidioidomycosis (PCM), a deep mycosis endemic in Latin American countries that affects mainly male rural workers. Infection by P. brasiliensis has also been reported in several species of terrestrial animals; however, the capacity of the fungus to infect aquatic organisms is poorly known. The aim of this study was to detect P. brasiliensis in a fish species, Nile tilapia (Oreochromis niloticus), the most farmed and widely distributed fish in endemic areas for human PCM in Brazil. As a first step, the humoral immune response against the fungus was evaluated in an experimental group of three fish immunized with inactivated P. brasiliensis yeast cells. For the seroepidemiological study, serum samples of Nile tilapia raised in cages (n = 109) and in ponds (n = 105), collected from a fish slaughterhouse, were analyzed for P. brasiliensis antibodies by ELISA using gp43 as antigen. All the inoculated fish produced antibodies against the fungus. The seropositivity observed in fish raised in cages and ponds was 17.4 and 5.7%, respectively. Due to the higher seropositivity observed in caged fish, 100 tissue samples (encephalon, liver, and kidney), from another group of tilapia raised in cages, were analyzed by polymerase chain reaction (PCR; Pb-ITSR and Pb-ITSE). Three tissue samples (liver n = 1, kidney n = 1, and enchepahlon n = 1) from three different fish resulted positive to PCR. This is the first report to show serological and molecular evidence of P. brasiliensis infection in a fish species.

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The Proteome Map and PeptideAtlas of a widely cultivated tropical water fish Labeo rohita: A resource for the Aquaculture Community

10.21203/rs.3.rs-397364/v1 ◽

2021 ◽

Author(s):

Mehar Un Nissa ◽

Jaipal Reddy ◽

Arijit Mukherjee ◽

Nevil Pinto ◽

Biplab Ghosh ◽

...

Keyword(s):

Fish Species ◽

Labeo Rohita ◽

Sequence Information ◽

World Population ◽

Lysine Methylation ◽

Proteomic Profiling ◽

Nutritional Security ◽

Sustainable Solutions ◽

N Terminus ◽

Food And Nutritional Security

Abstract With the global consumption of fish outpacing population growth, aquaculture sector is facing challenges to address the rising demand of food and nutritional security. Integrative omics research provides a strong platform to understand the basic biology and translate this knowledge into sustainable solutions in tackling disease outbreak, increasing productivity thus ensuring food security. To further understand the complex biology of host-pathogen response and support the aquaculture effort, genome and proteome reference maps moving beyond simple sequence information of cultivated fish species will accelerate research and translation of quality products for food industries. Towards this end, we have performed an extensive proteomics-based investigation of Labeo rohita, one of the economically important fish species produced in world aquaculture. Deep proteomic profiling of 17 histologically normal tissues, plasma and embryo provided mass-spectrometric evidence for 6015 high confident canonical proteins at 1% false discovery rate. Tissue enriched expression of several biologically important proteins was validated using targeted proteomics with high quantitative accuracy. We characterised the global post translational modifications (PTMs) in terms of acetylation (n-terminus and lysine), methylation (n-terminus, lysine and arginine) and phosphorylation (serine, threonine and tyrosine) to present a comprehensive proteome resource. An interactive web-based portal was developed to support the Labeo rohita PeptideAtlas, (www.peptideatlas.org), a unique community resource for mass spectrometry-based peptide/protein evidence in fish. This draft proteome map of Labeo rohita would advance basic and applied research in aquaculture to meet the most critical challenge of providing food and nutritional security to an increasing world population.

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