Statement of Accounts of Library &amp; Museum

Patwardhan, D. K.

doi:10.1080/0371750x.1947.10877820

Cited by 2 publications

(2 citation statements)

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“…In the spiny lobster Panulirus polyphagus, following exposure to copper, orange-yellow color of hepatopancreas changed from orange-yellow to greenish black [23]. The hepatopancreas of Palaemon malcomsonii changed from orange red to bluish black due to heavy metal toxicity [24]. Metapenaeus bennettae and mud crab Scylla serrata following long-term exposure to copper resulted in yellowish-brown coloration in hepatopancreas [25,26].…”

Section: Discussionmentioning

confidence: 99%

Effect of Copper on Morphology, Weight, and Chromosomal Aberrations in the Spiny Lobster, Panulirus homarus (Linnaeus, 1758)

Maharajan¹,

Vaseeharan

Rajalakshmi

et al. 2011

Biol Trace Elem Res

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Spiny lobster Panulirus homarus which had been exposed to cupric ion at 9.55 and 19.1 μg/l for 28 days was examined for sub-lethal effects including morphology, wet weight, and induced genotoxic effect on the chromosome. Following cupric exposure, the color of lobster P. homarus changed from yellowish-brown to greenish black in the hepatopancreas, changed from normal creamy white to yellowish white in the muscle, and changed to greenish black in the gill. A significant change in the percentage of wet weight of muscle (28.70 ± 0.41-23.47 ± 0.45), hepatopancreas (4.03 ± 0.12-2.63 ± 0.17), and gills (3.63 ± 0.45-3.87 ± 0.12) were observed in the copper-treated lobsters. The diploid number of chromosomes of P. homarus was over 200 metaphases from ten lobsters, as 2n = 58, and consisted of 16 acrocentric, seven metacentric, and six sub-metacentric chromosomes. The lobsters exposed to cupric ion at 9.55 and 19.1 μg/l showed different types of chromosomal aberrations such as centromeric gaps, chromatid breaks, centromeric fusion, stickiness, ring chromosomes, and acrocentric association region. The frequency of aberrations increased with duration of exposure. In conclusion, it was suggested that cupric ion interacts with the spindle formation and consequently distorts the normal karyomorphology, indicating cytogenetic effect on lobster.

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Section: Discussionmentioning

confidence: 99%

Effect of Copper on Morphology, Weight, and Chromosomal Aberrations in the Spiny Lobster, Panulirus homarus (Linnaeus, 1758)

Maharajan¹,

Vaseeharan

Rajalakshmi

et al. 2011

Biol Trace Elem Res

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“…Puluemon lamarrei (H.M. Edwards) grows to a maximum length of 80 mm and has a wide distribution in the freshwater habitats of India (De Man, 1908;Kemp, 1915;Panikkar and Aiyer, 1939;Patwardhan, 1937;Chopra and Tiwari, 1947). For the present study, prawns of different body sizes were collected from the Bellandur tank (near Bangalore, South India).…”

Section: Experimental Animalsmentioning

confidence: 99%

Laboratory studies on food intake, growth and conversion efficiency of Palaemon lamarrei in relation to body size

Shakuntala

Reddy

1977

Aquaculture

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The effects of body size on the food intake, growth and conversion efficiency of the freshwater prawn Palaemon lamarrei have been studied. In captivity, fed on a restricted diet of the muscles of the fish Gambusia affinis, moulting in these prawns occurred once in 18 + 5 days at a temperature of 26 f 1°C. The importance of these cast moults, contributing a sizable amount of organic matter to the detritus deposit of freshwater habitats has been indicated. In a log-log system, both food intake and growth per day, represented as a percentage of body weight, showed an inverse relationship to the body size. Animals in the size range of 600-800 mg exhibited the highest conversion efficiency. The present study indicates that these prawns can be successfully reared and grown under laboratory conditions.

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Statement of Accounts of Library & Museum

Cited by 2 publications

References 0 publications

Effect of Copper on Morphology, Weight, and Chromosomal Aberrations in the Spiny Lobster, Panulirus homarus (Linnaeus, 1758)

Effect of Copper on Morphology, Weight, and Chromosomal Aberrations in the Spiny Lobster, Panulirus homarus (Linnaeus, 1758)

Laboratory studies on food intake, growth and conversion efficiency of Palaemon lamarrei in relation to body size

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