Predicting chemical contaminants in freshwater sediments through the use of historical biochemical endpoints in resident fish species

2002 ◽  
Vol 21 (10) ◽  
pp. 2138-2145 ◽  
Author(s):  
Daniel Schlenk ◽  
Yelena Sapozhnikova ◽  
Jean Paul Baquirian ◽  
Andrew Mason
Keyword(s):  
Fish Species ◽  
Freshwater Sediments ◽  
Chemical Contaminants ◽  
Resident Fish

The influence of freshwater flows on two estuarine resident fish species show differential sensitivity to the impacts of drought, flood and climate change

2017 ◽  
Vol 100 (9) ◽  
pp. 1121-1137 ◽  
Author(s):  
Joel Williams ◽  
Jeremy S. Hindell ◽  
Greg P. Jenkins ◽  
Sean Tracey ◽  
Klaas Hartmann ◽  
...  
Keyword(s):  
Climate Change ◽  
Fish Species ◽  
Differential Sensitivity ◽  
Resident Fish ◽  
Estuarine Resident

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 Nutrient and Chemical Contaminant Levels in Five Marine Fish Species from Angola—The EAF-Nansen Programme

Foods ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 629 ◽  
Author(s):  
Amalie Moxness Reksten ◽  
Avelina M. Joao Correia Victor ◽  
Edia Baptista Nascimento Neves ◽  
Sofie Myhre Christiansen ◽  
Molly Ahern ◽  
...  
Keyword(s):  
Marine Fish ◽  
Fish Species ◽  
Food Products ◽  
Animal Origin ◽  
Species Variation ◽  
Marine Fish Species ◽  
Chemical Contaminants ◽  
Potential Consumer ◽  
Food Composition Tables ◽  
Terrestrial Animal

Fish is a rich source of several important nutrients and an important part of the otherwise plant-dominated diet present in Angola. However, fish may also be a source of contaminants. The aim of this study was to analyse the nutrient contents and the levels of chemical contaminants, including arsenic, cadmium, mercury, and lead, in five commonly consumed marine fish species sampled during a survey with the research vessel Dr. Fridtjof Nansen in Angola. The species’ contribution to recommended nutrient intakes (RNI) for women and children was assessed and compared to that of food products of terrestrial animal origin. All the sampled species are good sources of protein and micronutrients if included in the diet, and inter-species variation is evident. The species were identified to contribute 5–15% of the RNI for calcium, iron, iodine, and zinc and exceeded the contribution to protein and iron intakes of food products of terrestrial animal origin. Furthermore, the potential consumer exposure to chemical contaminants in the species was assessed. None of the species exceeded the maximum levels for cadmium, mercury, and lead, and the potential consumer exposure to cadmium and methylmercury was considered low. The data presented in this study represent an important contribution to African food composition tables.

Parasite communities of a fish assemblage from the intertidal rocky zone of central Chile: similarity and host specificity between temporal and resident fish

Parasitology ◽  
2009 ◽  
Vol 136 (11) ◽  
pp. 1291-1303 ◽  
Author(s):  
G. MUÑOZ ◽  
Y. CORTÉS
Keyword(s):  
Host Specificity ◽  
Fish Species ◽  
Fish Assemblage ◽  
Parasite Species ◽  
Parasite Community ◽  
Central Chile ◽  
Resident Fish ◽  
Parasite Communities ◽  
High Host Specificity ◽  
Intertidal Fish

SUMMARYThe different species of a fish assemblage can, to some extent, be similar in terms of their parasite communities, which can be associated with certain ecological host traits. This study compared the parasite community descriptors between temporal and resident fish species composing an intertidal assemblage from central Chile. Host specificity and similarity indices of parasite communities among the fish species were also considered. A total of 1097 fish representing 14 species were collected during spring and summer of 2 consecutive years. A total spectrum of 40 parasite species was found, of which copepods and trematodes were the commonest. Congeneric fish species had the highest similarities in their parasite communities. Based on a cluster analysis, using only some fish species, no group was distinguished using abundance or prevalence of parasites, because 50% of parasite species had high host specificity and only few of them were shared among fish species. Adult parasites showed high host specificity and were found mainly in resident intertidal fish, whereas the temporal fish had parasites with different degrees of specificity. Consequently, resident intertidal fish were characterized by their own parasite species, meaning that their transmissions might be restricted to the intertidal zone.

scholarly journals Behavioural traits and feeding ecology of Mediterranean lionfish and native species naiveté to lionfish predation

2020 ◽  
Author(s):  
Daniele D’Agostino ◽  
Carlos Jimenez ◽  
Tom Reader ◽  
Louis Hadjioannou ◽  
Stephanie Heyworth ◽  
...  
Keyword(s):  
Reef Fish ◽  
Fish Species ◽  
Feeding Ecology ◽  
Native Species ◽  
Invasion Success ◽  
Generalist Predators ◽  
Western Atlantic ◽  
Predatory Behaviour ◽  
Resident Fish ◽  
The Mediterranean

ABSTRACTThe detrimental effects of invasion by Indo-Pacific lionfish (Pterois volitans/miles) on western Atlantic fishes have spurred concerns for Mediterranean fish biodiversity, where a Lessepsian invasion of lionfish has recently begun. In order to assess the potential impact on biodiversity, we examine key behavioural and ecological traits of lionfish, and the resident fish community in the Mediterranean, that may contribute to lionfish invasion success. We focus on Cyprus, where lionfish populations were first sighted in 2012 and have now established abundant and stable populations. Using field observations, we examine lionfish predatory behaviour and feeding ecology, and resident fish species naiveté to hunting lionfish. Our findings suggest that lionfish in the Mediterranean are crepuscular generalist predators, with prey targeted dominated by small-bodied benthic or bentho-pelagic associated species. Such prey are more likely to be native than introduced (Lessepsian) fishes, with native prey fishes showing greater naiveté towards lionfish than Lessepsian prey species. Notably, one of the Mediterranean’s key ecological fish species (the native damselfish Chromis chromis), showed the highest level of naiveté and was the most heavily targeted prey. Overall, lionfish in the Mediterranean show similar predatory behaviour and ecology to their western Atlantic counterparts. Although the Mediterranean invasion is still relatively recent, it may result in a similar disruption to reef fish biomass to that recorded in the Atlantic, with impact to the structure and biodiversity of reef fish communities and the services they provide.

Habitat use by juvenile salmon, other migratory fish, and resident fish species underscores the importance of estuarine habitat mosaics

2019 ◽  
Vol 625 ◽  
pp. 145-162 ◽  
Author(s):  
L Chalifour ◽  
DC Scott ◽  
M MacDuffee ◽  
JC Iacarella ◽  
TG Martin ◽  
...  
Keyword(s):  
Habitat Use ◽  
Fish Species ◽  
Juvenile Salmon ◽  
Migratory Fish ◽  
Estuarine Habitat ◽  
Resident Fish ◽  
Habitat Mosaics

Comparative Recoveries of Planted Yearling and Fall-Fingerling Brook Trout (Salvelinus fontinalis) from Ontario Lakes

1978 ◽  
Vol 35 (4) ◽  
pp. 391-396 ◽  
Author(s):  
J. M. Fraser
Keyword(s):  
Key Words ◽  
Fish Species ◽  
Brook Trout ◽  
Salvelinus Fontinalis ◽  
Growth Yield ◽  
Resident Species ◽  
Resident Fish ◽  
Size Groups ◽  
Resident Populations ◽  
Creel Census

Yearling and fall-fingerling brook trout (Salvelinus fontinalis) were planted in two lakes with few or no resident fish species and in three lakes with resident populations. The comparative recoveries of the two size-groups of trout planted were assessed by creel census and/or intensive gillnetting. Recoveries of planted yearling brook trout were greater from lakes supporting few or no resident fish species (15.9–35.9%) and less in lakes supporting suckers, minnows, and sticklebacks (5.9–14.8%). Experience was similar with fall fingerlings planted in the same set of lakes though comparative recoveries were less. Lakes with few fish competitors yielded 3.5–4.8 kg of trout for each kilogram of fall fingerlings planted compared with 2.9–3.0 kg for each kilogram of yearlings planted. The returns of trout from lakes also supporting resident species were only 0.3–0.8 kg for each kilogram of yearlings or fall fingerlings planted. Key words: Salvelinus fontinalis, planting, survival, growth, yield

Chemical contaminants in fish species from rivers in the North of Luxembourg: Potential impact on the Eurasian otter (Lutra lutra)

Chemosphere ◽  
2010 ◽  
Vol 78 (7) ◽  
pp. 785-792 ◽  
Author(s):  
Aurore Boscher ◽  
Sylvie Gobert ◽  
Cédric Guignard ◽  
Johanna Ziebel ◽  
Lionel L’Hoste ◽  
...  
Keyword(s):  
Fish Species ◽  
Lutra Lutra ◽  
Chemical Contaminants ◽  
Eurasian Otter ◽  
The North ◽  
Potential Impact
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