Examination of interaction of trypanosome infection and crude oil exposure on hematology of the longhorn sculpin (Myoxocephalus octodecemspinosus)

1982 ◽  
Vol 28 (4) ◽  
pp. 435-438 ◽  
Author(s):  
J. W. Kiceniuk ◽  
R. A. Khan ◽  
M. Dawe ◽  
U. Williams
Keyword(s):  
Crude Oil ◽  
Trypanosome Infection ◽  
Longhorn Sculpin ◽  
Oil Exposure

Influence of crude oil and pulp and paper mill effluent on mixed infections of Trichodina cottidarium and T. saintjohnsi (Ciliophora) parasitizing Myoxocephalus octodecemspinosus and M. scorpius

1994 ◽  
Vol 72 (2) ◽  
pp. 247-251 ◽  
Author(s):  
R. A. Khan ◽  
D. E. Barker ◽  
K. Williams-Ryan ◽  
R. G. Hooper
Keyword(s):  
Crude Oil ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Contaminated Sediment ◽  
Pulp And Paper Mill ◽  
Paper Mill Effluent ◽  
Site Field ◽  
Myoxocephalus Scorpius ◽  
Longhorn Sculpin ◽  
Fish Hosts

Samples of longhorn sculpin (Myoxocephalus octodecemspinosus) were exposed to sediment contaminated with crude oil or pulp and paper mill effluent for periods up to 13 months in the laboratory. Other samples were collected at sites where crude oil or effluent from a pulp and paper mill are discharged. The intensity of gill infections of Trichodina spp. on exposed fish was significantly higher than on controls 5, 9, and 13 months after exposure. The intensity of the ciliates was also greater on sculpins collected near an oil-receiving terminal than on those sampled 5 km from the polluted site. Field collections of longhorn and shorthorn (Myoxocephalus scorpius) sculpins at and distant from a pulp and paper mill had high and low intensities of the ciliates, respectively. Similarly, the intensity of trichodinid ciliates was also significantly greater in longhorn sculpins exposed to effluent-contaminated sediment than in controls 5 months after exposure. The results suggest that the intensity of gill-inhibiting species such as trichodinids in susceptible fish hosts increases after chronic exposure to crude oil and to pulp and paper mill effluent, and the parasites may serve as indicators of pollution.

scholarly journals Sublethal Effects of Crude Oil and Chemical Dispersants on Multiple Life History Stages of the Eastern Oyster, Crassostrea virginica

2020 ◽  
Vol 8 (10) ◽  
pp. 808
Author(s):  
Sara M. Garcia ◽  
Kevin T. Du Clos ◽  
Olivia H. Hawkins ◽  
Brad J. Gemmell
Keyword(s):  
Life History ◽  
Crude Oil ◽  
Crassostrea Virginica ◽  
Sublethal Effects ◽  
Oil Pollution ◽  
Eastern Oyster ◽  
Clearance Rates ◽  
Important Species ◽  
Life History Stages ◽  
Oil Exposure

The eastern oyster Crassostrea virginica is an ecologically and economically important species that is vulnerable to oil pollution. We assessed sublethal effects of soluble fractions of crude oil alone (WAF) and crude oil in combination with Corexit 9500 dispersant (CEWAF) on oysters at three life history stages. Veliger swimming, pediveliger settlement, and adult clearance rates were quantified after 24 h exposures to the contaminants. Veliger swimming speeds were not significantly impacted by 24 h exposures to WAF or CEWAF. A larger proportion of veligers were inactive following WAF and CEWAF exposure as compared to the control, but the effect was greater for pediveligers, and pediveliger settlement in the highest concentration CEWAF treatment decreased by 50% compared to controls. Thus, pediveligers may be particularly vulnerable to oil exposure. In the adults, we found significant clearance rates reductions that persisted 33 days after acute exposure to CEWAF. Knowledge of sublethal effects of oil and dispersant at multiple life history stages aids understanding of how this important species will respond to an oil spill.

Seahorse (Hippocampus reidi) as a bioindicator of crude oil exposure

2015 ◽  
Vol 117 ◽  
pp. 28-33 ◽  
Author(s):  
Frederico Augusto Cariello Delunardo ◽  
Luciano Rodrigues de Carvalho ◽  
Bruno Ferreira da Silva ◽  
Michel Galão ◽  
Adalberto Luís Val ◽  
...  
Keyword(s):  
Crude Oil ◽  
Oil Exposure

Combined effects of hypoxia or elevated temperature and Deepwater Horizon crude oil exposure on juvenile mahi-mahi swimming performance

2018 ◽  
Vol 139 ◽  
pp. 129-135 ◽  
Author(s):  
Edward M. Mager ◽  
Christina Pasparakis ◽  
John D. Stieglitz ◽  
Ronald Hoenig ◽  
Jeffrey M. Morris ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Crude Oil ◽  
Swimming Performance ◽  
Deepwater Horizon ◽  
Combined Effects ◽  
Oil Exposure

scholarly journals Effect of dispersed crude oil exposure upon the aerobic metabolic scope in juvenile golden grey mullet (Liza aurata)

2012 ◽  
Vol 64 (4) ◽  
pp. 865-871 ◽  
Author(s):  
Thomas Milinkovitch ◽  
Julie Lucas ◽  
Stéphane Le Floch ◽  
Hélène Thomas-Guyon ◽  
Christel Lefrançois
Keyword(s):  
Crude Oil ◽  
Grey Mullet ◽  
Liza Aurata ◽  
Metabolic Scope ◽  
Oil Exposure

CHEMICAL ANALYSIS METHODS FOR CRUDE OIL

1995 ◽  
Vol 1995 (1) ◽  
pp. 1004-1006
Author(s):  
Zhendi Wang ◽  
Mervin F. Fingas
Keyword(s):  
Pattern Recognition ◽  
Chemical Analysis ◽  
Crude Oil ◽  
Analysis Method ◽  
Weathered Oil ◽  
Specific Individual ◽  
Using Data ◽  
Oil Exposure ◽  
Spilled Oil ◽  
Weathering Process

ABSTRACT Using an oil chemical analysis method developed in our laboratory, more than 280 compounds in the Alberta Sweet Mixed Blend (ASMB) oil have been positively identified. The distribution of selected target compounds offers unique and sensitive fingerprints for matching the source of spilled oil and tracing the weathering process of oil in the environment. The pattern recognition plots involving more than 100 oil-specific individual components and component groupings permit deduction of a best set of values for oil exposure to weathering. Using data from different samples including crude oil, weathered oil, and 22-year-old spilled oil as examples, the distinct advantages of the described method over the current methods are examined.

THE EFFECTS OF CRUDE OIL ON LARVAE OF LOBSTER HOMARUS AMERICANUS

1977 ◽  
Vol 1977 (1) ◽  
pp. 569-573
Author(s):  
Joseph M. Forns
Keyword(s):  
Crude Oil ◽  
Mass Culture ◽  
Homarus Americanus ◽  
Behavioral Characteristics ◽  
American Lobster ◽  
Larval Stages ◽  
Fourth Larval Stage ◽  
Flow Through ◽  
Oil Exposure ◽  
South Louisiana

ABSTRACT The effects of API reference South Louisiana crude oil upon four larval stages of American lobster (Homarus americanus) were determined in a flow-through system. Tests were conducted with naturally-hatched animals in individual test chambers as well as in mass culture systems in an operating state lobster hatchery. Experimental flow-through crude oil exposure concentrations were 0.1, and 1.0 ppm, administered as a strongly-agitated emulsion-like mix to ambient temperature seawater ranging from 15°-20°C. Oil exposure residence times ranged from 0.8-5.6 minutes depending on the test. Exposed animals were monitored six times daily for feeding behavioral characteristics, mobility, molting success, growth and development times to reach the fourth larval stage. Pigmentation analysis was performed on individual larvae by photomicroscopy, and hydrocarbon analyses were also conducted thereon. Post-larval development through the eighth stage was investigated. Statistical comparisons were made among different control animals and between control and oil-exposed larvae.

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