Annual Developmental Cycle of Gonads of European Perch Females (Perca fluviatilis L.) from Natural Sites and a Canal Carrying Post-cooling Water from the Dolna Odra Power Plant (NW Poland)

2015 ◽  
Vol 63 (2) ◽  
pp. 85-93 ◽  
Author(s):  
Lucyna Kirczuk ◽  
Józef Domagała ◽  
Małgorzata Pilecka-Rapacz
Keyword(s):  
Power Plant ◽  
Cooling Water ◽  
Perca Fluviatilis ◽  
Developmental Cycle ◽  
European Perch ◽  
Nw Poland

scholarly journals Cardiorespiratory adjustments to chronic environmental warming improve hypoxia tolerance in European perch (Perca fluviatilis)

2021 ◽  
pp. jeb.241554
Author(s):  
Andreas Ekström ◽  
Erika Sundell ◽  
Daniel Morgenroth ◽  
Tristan McArley ◽  
Anna Gårdmark ◽  
...  
Keyword(s):  
Climate Warming ◽  
Nuclear Power ◽  
Acute Hypoxia ◽  
Cooling Water ◽  
Perca Fluviatilis ◽  
Thermal Acclimation ◽  
Hypoxia Tolerance ◽  
Physiological Traits ◽  
European Perch ◽  
Environmental Warming

Aquatic hypoxia will become increasingly prevalent in the future due to eutrophication combined with climate warming. While short-term warming typically constrains fish hypoxia tolerance, many fishes cope with warming by adjusting physiological traits through thermal acclimation. Yet, little is known about how such adjustments affect tolerance to hypoxia.We examined European perch (Perca fluviatilis) from the Biotest enclosure (23°C, Biotest population), a unique ∼1 km2 ecosystem artificially warmed by cooling water from a nuclear power plant, and an adjacent reference site (16-18°C, Reference population). Specifically, we evaluated how acute and chronic warming affect routine oxygen consumption rate (MO2routine) and cardiovascular performance in acute hypoxia, alongside assessments of the thermal acclimation of the aerobic contribution to hypoxia tolerance (critical O2 tension for MO2routine; Pcrit) and absolute hypoxia tolerance (O2 tension at loss of equilibrium; PLOE).Chronic adjustments (possibly across lifetime or generations) alleviated energetic costs of warming in Biotest perch by depressing MO2routine and cardiac output, and by increasing blood O2 carrying capacity relative to reference perch acutely warmed to 23°C. These adjustments were associated with improved maintenance of cardiovascular function and MO2routine in hypoxia (i.e., reduced Pcrit). However, while Pcrit was only partially thermally compensated in Biotest perch, they had superior absolute hypoxia tolerance (i.e., lowest PLOE) relative to reference perch irrespective of temperature.We show that European perch can thermally adjust physiological traits to safeguard and even improve hypoxia tolerance during chronic environmental warming. This points to cautious optimism that eurythermal fish species may be resilient to the imposition of impaired hypoxia tolerance with climate warming.

Seawater Scrubbing for the Removal of Sulfur Dioxide in a Steam Turbine Power Plant

2005 ◽  
Author(s):  
Akili D. Khawaji ◽  
Jong-Mihn Wie
Keyword(s):  
Power Plant ◽  
Sulfur Dioxide ◽  
Steam Turbine ◽  
Flue Gas ◽  
Operating Cost ◽  
Cooling Water ◽  
Cost Savings ◽  
Fuel Oil ◽  
So2 Emissions ◽  
Heavy Fuel Oil

The most popular method of controlling sulfur dioxide (SO2) emissions in a steam turbine power plant is a flue gas desulfurization (FGD) process that uses lime/limestone scrubbing. Another relatively newer FGD technology is to use seawater as a scrubbing medium to absorb SO2 by utilizing the alkalinity present in seawater. This seawater scrubbing FGD process is viable and attractive when a sufficient quantity of seawater is available as a spent cooling water within reasonable proximity to the FGD scrubber. In this process the SO2 gas in the flue gas is absorbed by seawater in an absorber and subsequently oxidized to sulfate by additional seawater. The benefits of the seawater FGD process over the lime/limestone process and other processes are; 1) The process does not require reagents for scrubbing as only seawater and air are needed, thereby reducing the plant operating cost significantly, and 2) No solid waste and sludge are generated, eliminating waste disposal, resulting in substantial cost savings and increasing plant operating reliability. This paper reviews the thermodynamic aspects of the SO2 and seawater system, basic process principles and chemistry, major unit operations consisting of absorption, oxidation and neutralization, plant operation and performance, cost estimates for a typical seawater FGD plant, and pertinent environmental issues and impacts. In addition, the paper presents the major design features of a seawater FGD scrubber for the 130 MW oil fired steam turbine power plant that is under construction in Madinat Yanbu Al-Sinaiyah, Saudi Arabia. The scrubber with the power plant designed for burning heavy fuel oil containing 4% sulfur by weight, is designed to reduce the SO2 level in flue gas to 425 ng/J from 1,957 ng/J.

scholarly journals Occurrence of parasites of the genus Eustrongylides spp. (Nematoda: Dioctophymatidae) in fish caught in Trasimeno lake, Italy

2016 ◽  
Vol 5 (4) ◽  
Author(s):  
Raffaella Branciari ◽  
David Ranucci ◽  
Dino Miraglia ◽  
Andrea Valiani ◽  
Fabrizia Veronesi ◽  
...  
Keyword(s):  
Cyprinus Carpio ◽  
Carassius Auratus ◽  
Micropterus Salmoides ◽  
Abdominal Cavity ◽  
Perca Fluviatilis ◽  
Tinca Tinca ◽  
European Perch ◽  
Black Bass ◽  
Zoonotic Parasites ◽  
Edible Fish

<em>Eustrongylides</em> spp. is considered a freshwater fish zoonotic nematode. In the present study, the prevalence of <em>Eustrongylides</em> spp. in six edible fish (European perch - <em>Perca fluviatilis</em>, goldfish - <em>Carassius auratus</em>, largemouth black bass - <em>Micropterus salmoides</em>, tench- <em>Tinca tinca</em>, carp - <em>Cyprinus carpio</em> and sand smelt - Atherina boyeri) of Trasimeno lake was surveyed. The investigations were conducted from October 2014 to September 2015 and 384 specimens per species for each season were caught in Trasimeno lake and examined for the presence of larvae in the abdominal cavity and muscle. The presence of nematodes in the abdominal cavity and musculature was revealed in three fish species. The prevalence of Eustrongylides spp. infection was 6.84, 1.89 and 0.13% in perch, largemouth black bass and sand smelt, respectively. The number of parasites per fish was only one in largemouth black bass and sand smelt and ranged from one up to three in perch. This study states that the European perch, largemouth black bass and sand smelt of Trasimeno lake are infected with zoonotic parasites; therefore, food business operators have to take appropriate measures to guarantee the health of consumers.

scholarly journals Adult female European perch (Perca fluviatilis) from the Baltic Sea show no evidence of thiamine deficiency

2021 ◽  
pp. 102081
Author(s):  
Johan Gustafsson ◽  
Karin Ström ◽  
Linus Arvstrand ◽  
Lars Förlin ◽  
Lillemor Asplund ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Adult Female ◽  
Thiamine Deficiency ◽  
Perca Fluviatilis ◽  
The Baltic Sea ◽  
European Perch ◽  
Perch Perca Fluviatilis ◽  
The Baltic

scholarly journals A Process for Evaluating Adverse Environmental Impacts by Cooling-Water System Entrainment at a California Power Plant

2002 ◽  
Vol 2 ◽  
pp. 81-105 ◽  
Author(s):  
C.P. Ehrler ◽  
J.R. Steinbeck ◽  
E.A. Laman ◽  
J.B. Hedgepeth ◽  
J.R. Skalski ◽  
...  
Keyword(s):  
Power Plant ◽  
Environmental Impacts ◽  
Environmental Protection Agency ◽  
Transport Model ◽  
Larval Fish ◽  
Larval Mortality ◽  
Water System ◽  
Cooling Water ◽  
Water Quality Control ◽  
Plant Effects

A study to determine the effects of entrainment by the Diablo Canyon Power Plant (DCPP) was conducted between 1996 and 1999 as required under Section 316(b) of the Clean Water Act. The goal of this study was to present the U.S. Environmental Protection Agency (EPA) and Central Coast Regional Water Quality Control Board (CCRWQCB) with results that could be used to determine if any adverse environmental impacts (AEIs) were caused by the operation of the plant’s cooling-water intake structure (CWIS). To this end we chose, under guidance of the CCRWQCB and their entrainment technical working group, a unique approach combining three different models for estimating power plant effects: fecundity hindcasting (FH), adult equivalent loss (AEL), and the empirical transport model (ETM). Comparisons of the results from these three approaches provided us a relative measure of confidence in our estimates of effects. A total of 14 target larval fish taxa were assessed as part of the DCPP 316(b). Example results are presented here for the kelp, gopher, and black-and-yellow (KGB) rockfish complex and clinid kelpfish. Estimates of larval entrainment losses for KGB rockfish were in close agreement (FH is approximately equals to 550 adult females per year, AEL is approximately equals to 1,000 adults [male and female] per year, and ETM = larval mortality as high as 5% which could be interpreted as ca. 2,600 1 kg adult fish). The similar results from the three models provided confidence in the estimated effects for this group. Due to lack of life history information needed to parameterize the FH and AEL models, effects on clinid kelpfish could only be assessed using the ETM model. Results from this model plus ancillary information about local populations of adult kelpfish suggest that the CWIS might be causing an AEI in the vicinity of DCPP.

scholarly journals Certification of European perch from the Irikla Reservoir (basin of the Ural River) according to the standards of the Marine Stewardship Council

Trudy VNIRO ◽  
2020 ◽  
Vol 179 ◽  
pp. 124-148
Author(s):  
D. L. Lajus ◽  
I. A. Belyanin ◽  
E. P. Ermolova ◽  
P. V. Golovin
Keyword(s):  
Fisheries Management ◽  
Perca Fluviatilis ◽  
World Market ◽  
Small Scale ◽  
European Perch ◽  
Certification Programs ◽  
Marine Stewardship Council ◽  
Depth Analysis ◽  
Seafood Products ◽  
Reservoir Basin

Certification according to the standards of the Marine Stewardship Council (MSC) is highly demanded in the world market of seafood products. In Russia, a number of fisheries already have MSC certificates, but still there is a significant potential for certification of other fisheries. This requires analysis of the experience of companies that have successfully obtained the certification. Special attention should be paid to small-scale fisheries, whose financial opportunities to participate in certification programs, unlike large fisheries, are seriously limited. In the present work, process of ecological certification of fishery is considered on an example of the gillnet fishery of European perch Perca fluviatilis in the Irikla Reservoir, located in the middle course of the river Ural in the Orenburg Province. The catch volume of perch is 200–250 metric tons during the recent years. Fishing companies that fish in this reservoir have been working on MSC certification for over ten years. Process of certification has shown that the fishery meets the necessary standards, but even after the certification completed in 2016, there is a need for certain activities to support certification. These are in-depth analysis of the recreational fisheries, development of research plans in cooperation with scientific fishery institutes, specifically aimed at informing the certification process, independent analysis of the fisheries management system, detailed study of various bycatch species. It can be concluded that positive experience of this small-scale fishery with ecological certification can be important in improving fisheries management not only in Russia but also worldwide.

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