Sublethal Toxicity of Crude Oil Exposure in The Blue Crab, Callinectes sapidus, at Two Life History Stages

2016 ◽  
Vol 98 (2) ◽  
pp. 178-182 ◽  
Author(s):  
Sarah M. Giltz ◽  
Caz M. Taylor
Keyword(s):  
Life History ◽  
Crude Oil ◽  
Blue Crab ◽  
Callinectes Sapidus ◽  
Sublethal Toxicity ◽  
Life History Stages ◽  
Oil Exposure

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.

Detection of the water-soluble fraction of crude oil by the blue crab, Callinectes sapidus

1981 ◽  
Vol 5 (1) ◽  
pp. 3-11 ◽  
Author(s):  
Walter H Pearson ◽  
Stephen E Miller ◽  
J.W Blaylock ◽  
Bori L Olla
Keyword(s):  
Crude Oil ◽  
Blue Crab ◽  
Soluble Fraction ◽  
Callinectes Sapidus ◽  
Water Soluble ◽  
Water Soluble Fraction

scholarly journals Effects of crude oil on survival and development in embryonated eggs in Callinectes sapidus Rathbun, 1896 (Decapoda, Portunidae)

2018 ◽  
Author(s):  
Kelsie L. Kelly ◽  
Caz M. Taylor
Keyword(s):  
Crude Oil ◽  
Blue Crab ◽  
Oil Spill ◽  
Callinectes Sapidus ◽  
Deepwater Horizon ◽  
The United States ◽  
Spawning Season ◽  
Blue Crabs ◽  
Deepwater Horizon Oil Spill ◽  
Important Species

Blue crabs, Callinectes sapidus Rathbun, 1896, are ubiquitous along the Atlantic and Gulf coasts of the United States. These organisms play an integral role in the ecosystems of the Gulf of Mexico (GOM), where not only are they a keystone species, but are also socioeconomically important. The survival of embryonated eggs is necessary to ensure adequate recruitment into the next generation. Because the 2010 Deepwater Horizon oil spill (DWH) occurred during the peak of the blue crab spawning season, the incident likely impacted blue crab embryos. In order to assess the effect of oil on embryonic growth and development, we collected embryonated eggs from seven different female blue crabs from the GOM throughout the spawning season and exposed them to an oil concentration of 500 ppb (the approximate concentration of oil at the surface water near the site of the Deepwater Horizon oil rig). Exposure to oil at this concentration caused a significantly larger proportion of prezoeae versus zoeae to hatch from embryonated eggs in experiments lasting longer than 4 days. Exposure to oil did not significantly affect overall survival or development rate. The prezoeal stage is a little-studied stage of blue crab development. Though it may or may not be a normal stage of development, this stage has been found to occur in suboptimal conditions and has lower survival than zoeal stages. The larger proportion of prezoeae following prolonged exposure to oil thus indicates that crude oil at concentrations likely to be experienced by crabs after the DWH spill negatively impacted the development of blue crab embryos. In addition to providing insight into the effects of the Deepwater Horizon oil spill, this study sheds light on embryonic development in blue crabs, a critical, but poorly investigated phase of this important species’ life cycle.

scholarly journals Publisher Correction: Oil exposure disrupts early life-history stages of coral reef fishes via behavioural impairments

2017 ◽  
Vol 1 (9) ◽  
pp. 1412-1412 ◽  
Author(s):  
Jacob L. Johansen ◽  
Bridie J. M. Allan ◽  
Jodie L. Rummer ◽  
Andrew J. Esbaugh
Keyword(s):  
Life History ◽  
Coral Reef ◽  
Early Life ◽  
Early Life History ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Life History Stages ◽  
Oil Exposure

The Role of Alternate Hosts in the Ecology and Life History of Hematodinium sp., a Parasitic Dinoflagellate of the Blue Crab (Callinectes sapidus)

2012 ◽  
Vol 98 (1) ◽  
pp. 73-84 ◽  
Author(s):  
Katrina M. Pagenkopp Lohan ◽  
Kimberly S. Reece ◽  
Terrence L. Miller ◽  
Kersten N. Wheeler ◽  
Hamish J. Small ◽  
...  
Keyword(s):  
Life History ◽  
Blue Crab ◽  
Callinectes Sapidus ◽  
Alternate Hosts ◽  
History Of
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