scholarly journals Occurrence and spatial distribution of chemical contaminants in edible fish species collected from UK and proximate marine waters

2018 ◽  
Vol 114 ◽  
pp. 219-230 ◽  
Author(s):  
A.R. Fernandes ◽  
D. Mortimer ◽  
M. Holmes ◽  
M. Rose ◽  
L. Zhihua ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Fish Species ◽  
Marine Waters ◽  
Chemical Contaminants ◽  
Edible Fish

New and Previously Overlooked Records of Several Fish Species from the Marine Waters of New York

2016 ◽  
Vol 23 (1) ◽  
pp. 118-133
Author(s):  
Jeremy J. Wright ◽  
Robert E Schmidt ◽  
Bryan R. Weatherwax
Keyword(s):  
New York ◽  
Fish Species ◽  
Marine Waters

scholarly journals Mapping and Assessing Commercial Fisheries Services in the Lithuanian Part of the Curonian Lagoon

Fishes ◽  
2022 ◽  
Vol 7 (1) ◽  
pp. 19
Author(s):  
Edgaras Ivanauskas ◽  
Andrius Skersonas ◽  
Vaidotas Andrašūnas ◽  
Soukaina Elyaagoubi ◽  
Artūras Razinkovas-Baziukas
Keyword(s):  
Spatial Distribution ◽  
Residence Time ◽  
Fish Species ◽  
Circulation Model ◽  
Curonian Lagoon ◽  
Water Residence Time ◽  
Total Catch ◽  
Catch Per Unit Effort ◽  
Commercial Fish ◽  
The Impact

The spatial distribution of biomass of main commercial fish species was mapped to estimate the supply of a provisioning fishery service in the Curonian lagoon. Catch per unit effort (CPUE) was used as a proxy to estimate the efficiency of commercial fishing and, subsequently, the potential biomass of fishes. The relationship between distinctive characteristics of the fishing areas and corresponding commercial catches and CPUE was analyzed using multivariate analysis. The total catch values and CPUE used in the analyses were derived from the official commercial fishery records. RDE analysis was used to assess the variation of both catch and CPUE of commercial fish species, while the percentages of bottom sediment type coverage, average depth, annual salinity, and water residence time in each of the fishing squares were used as explanatory variables. This distance e-based redundancy analysis allowed for the use of non-Euclidean dissimilarity indices. Fisheries data spatial distribution map indicated the lack of coherence between the spatial patterns of commercial catches and CPUE distribution in the northern part of the lagoon. Highest CPUE values were estimated in the central-eastern part of the lagoon as compared to the western part of the lagoon where CPUE values were substantially lower. Both total catch and CPUE appeared not to be related to the type of bottom habitats statistically while being spatially correlated in-between. However, the impact of salinity and water residence time calculated using the 3D hydraulic circulation model on the distribution of both CPUE and commercial catches was statistically significant.

Assessment of heavy metals in water samples and tissues of edible fish species from Awassa and Koka Rift Valley Lakes, Ethiopia

2012 ◽  
Vol 185 (4) ◽  
pp. 3117-3131 ◽  
Author(s):  
Larissa Dsikowitzky ◽  
Mesfin Mengesha ◽  
Elias Dadebo ◽  
Carlos Eduardo Veiga de Carvalho ◽  
Sven Sindern
Keyword(s):  
Heavy Metals ◽  
Fish Species ◽  
Water Samples ◽  
Rift Valley ◽  
Rift Valley Lakes ◽  
Edible Fish

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

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.

scholarly journals Human health risk assessment of screened pesticides residues in two edible fish species of river Ganga, India

2020 ◽  
Author(s):  
Zeshan Shah ◽  
Zubair Nengroo
Keyword(s):  
Health Risk ◽  
Human Health ◽  
Common Carp ◽  
Fish Species ◽  
Risk Ratio ◽  
Pesticide Residues ◽  
Human Health Risk ◽  
Carcinogenic Risk ◽  
River Ganga ◽  
Edible Fish

Abstract Study was carried out to determine the concentration and bioaccumulation of pesticide residues in edible fish from river Ganga, India, to assess human health risk via consumption of fish. Two commonly edible fish species bagrid catfish and common carp were collected. The n-hexane extract of the muscle tissues were characterized by gas chromatography coupled to mass spectrometry and quantified by electron capture detector for pesticide residues. Bioaccumulation factors (BAFs) in common carp of pesticides were found to be higher than those in bagrid fish. Daily exposures of pesticides for consumers via fish consumption were determined by calculating and comparing estimated daily intake (EDI) with ADI values. The EDI results in our study were insignificantly high from ADI values. Non-carcinogenic and carcinogenic risks were evaluated by Target hazard quotient (THQ) and risk ratio (R), respectively. Hazard quotients (THQ) were found to be lower than the set 1.0, inferring non-carcinogenic risk by consumption of fish from the river. Regard to contaminants carcinogenic affects the total risk ratio (R) value of pesticides were found lower than threshold of tolerable risk except of heptachlor indicating carcinogenic risk via consumption of fish. The results demonstrate that due to increased pollution in the ecosystem required more attention.

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