<i>Mysidopsis bahia</i>: An Estuarine Species Suitable for Life-Cycle Toxicity Tests to Determine the Effects of a Pollutant

Nimmo,; Bahner, LH; Rigby, R. A.; Sheppard, J.C.; Aj, Wilson

doi:10.1520/stp32393s

Cited by 44 publications

(3 citation statements)

References 9 publications

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“…We do not know why R. harrisii larvae are so much more resistant to Kepone than to mirex. The range of concentrations of Kepone in which development of the decapod, C. sapidus, occurred (Table V) was much more narrow than the range reported for the survival of 48-h-old juvenile Mysidopsis bahia, a mysid, exposed to different concentrations of Kepone for 19 days (Nimmo et aL, 1977). Survival of mysids was 90.6% in pg l-~, 84.4% in 0.39/Jg 1-~, 50% in 1.55 Pg 1-~, 3.1% in 4.4 pg l-1 and 0% in 8.7 pg 1-~.…”

Section: Survivalmentioning

confidence: 82%

“…Kepone is readily taken from water by marine organisms (Waish et al, 1977;Schimmel and Wilson, 1977;Nimmo et aL, 1977;Hansen et aL, 1977b), and is passed through a food chain . Depuration varies among species tested.…”

Section: Introductionmentioning

confidence: 99%

“…Hansen et aL (1977a) studied the chronic effects of Kepone on embryo, fry, juvenile and adult sheepshead minnows (Cyprinodon variegatus). The only life history toxicity tests on a malacostracan crustacean have been made on mysids, Mysidopsis bahia (Nimmo et aL, 1977).…”

Section: Introductionmentioning

confidence: 99%

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Kepone effects on larval development of mud-crab and blue-crab

Bookhout

Costlow

Monroe

1980

Water Air Soil Pollut

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Abstract. Laboratory experiments were conducted to determine the effects of Kepone on the larval development of the mud-crab, Rhithropanopeus harrisii, and the commercial blue crab, Callinectes sapidus, from the time of hatching until the 1 st crab stage was reached.Differential survival of R. harrisii from hatching to 1st crab stage occurred in a range of 35 to 125 ppb Kepone, whereas differential survival of C. sapidus over the same period of development occurred in a range of 0.1 to 1.0 ppb. Statistical analysis indicated that, for every 10 ppb Kepone added, duration from hatching to 1st crab stage of R. harrisii was increased by 0.391 + 0.043 days; whereas for each increase of 0.1 ppb, the duration from hatching to 1st crab stage of C. sapidus is prolonged by 0.38 + 0.10 days. The 1st and 2nd zoeal stages of R. harris# were the most sensitive developmental stages to Kepone, but the 1st zoeal stage of C. sapidus was not sensitive, statistically, to any concentration of Kepone tested. In zoeal stages II, IIl and IV, there were significant increases in mortality of C. sapidus over the previous stage in all media tested.

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Section: Survivalmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

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Kepone effects on larval development of mud-crab and blue-crab

Bookhout

Costlow

Monroe

1980

Water Air Soil Pollut

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Size‐ and shape‐dependent effects of microplastic particles on adult daggerblade grass shrimp (Palaemonetes pugio)

Gray

Weinstein

2017

Enviro Toxic and Chemistry

343

156

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The incidence of microplastics in marine environments has been increasing over the past several decades. The objective of the present study was to characterize the size- and shape-dependent effects of microplastic particles (spheres, fibers, and fragments) on the adult daggerblade grass shrimp (Palaemonetes pugio). Grass shrimp were exposed to 11 sizes of plastic: spheres (30, 35, 59, 75, 83, 116, and 165 μm), fragments (34 and 93 μm), and fibers (34 and 93 μm) at a concentration of 2000 particles/400 mL (= 50 000 particles/L) for 3 h. Following exposure, grass shrimp were monitored for survival, ingested and ventilated microplastics, and residence time. Mortality ranged from 0% to 55%. Spheres and fragments <50 μm were not acutely toxic. Mortality rates in experiments with spheres and fragments >50 μm ranged from 5% to 40%. Mortality was significantly higher in the exposure to 93-μm fibers than other sizes tested (p < 0.001). The shape of the particle had a significant influence on the number of particles ingested by the shrimp (p < 0.001). The residence time of particles in the gut ranged from 27 to 75 h, with an average of 43.0 ± 13.8 h. Within the gills, the residence time ranged from 27 to 45 h, with an average of 36.9 ± 5.4 h. The results suggest that microplastic particles of various sizes and shapes can be ingested and ventilated by adult daggerblade grass shrimp, resulting in acute toxicity. Environ Toxicol Chem 2017;36:3074-3080. © 2017 SETAC.

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The effects of a chronic mercury exposure on survival, reproduction and population dynamics ofMysidopsis Bahia

Gentile

Hoffman

et al. 1983

Enviro Toxic and Chemistry

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The epibenthic mysid Mysidopsis bahia was chronically exposed throughout its entire life cycle to inorganic mercury. The experimental design permitted the precise measurements of survival rates; individual and population growth rates; and sublethal reproductive responses, including time to sexual maturation and first brood release, egg development time, brood size and frequency of reproduction. Mercury was acutely toxic (96‐h LC50) to juveniles at 3.5 μg L−1, chronically toxic (35‐d LC50) at 1.8 μg L−1 and differentially toxic to males and females (α = 0.05). Male and female mortality rates were 35 and 18%, respectively, from sexual maturation (day 14) through termination of the assay (day 35). Reproductive effects included delays in sexual maturation and brood release at 1.6 μg L−1, a doubling of brood development time at 2.5 μg L−1 and subsequent abortion and significant decreases in the total broods released (and therefore juveniles produced) at 1.6 μg L−1. Intrinsic rates of population increase (r), calculated from life‐tables, decreased with increasing mercury concentration. The critical value (r = 0) for mercury occurs at 1.6 μg L−1, which corresponds well with the upper limit of the maximum acceptable toxicant concentration, the usual endpoint of life‐cycle toxicity tests. The toxicity test system is a sensitive, precise model for studying lethal, sublethal and potential population consequences of pollution.

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Mysidopsis bahia: An Estuarine Species Suitable for Life-Cycle Toxicity Tests to Determine the Effects of a Pollutant

Cited by 44 publications

References 9 publications

Kepone effects on larval development of mud-crab and blue-crab

Kepone effects on larval development of mud-crab and blue-crab

Size‐ and shape‐dependent effects of microplastic particles on adult daggerblade grass shrimp (Palaemonetes pugio)

The effects of a chronic mercury exposure on survival, reproduction and population dynamics ofMysidopsis Bahia

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