Results 121 to 130 of about 2,618 (162)
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A simple stress test for Penaeus vannamei postlarvae
Aquaculture, 1998Abstract The effects of age on resistance to low salinity and formalin stress were determined in early Penaeus vannamei postlarvae (PL) with acute static bioassays. Two-hour median lethal concentrations (2 h-LC50) of formalin were 274, 288, 298 and 293 ppm for PL ages of 1, 2, 3 and 4 days (PL1–PL4), respectively.
Addison L Lawrence
exaly +2 more sources
Inhibition of Na+,K+-ATPase in Penaeus indicus postlarvae by lead
Comparative Biochemistry and Physiology C, Comparative Pharmacology and Toxicology, 2000The plasma membrane/mitochondrial fractions of Penaeus indicus postlarvae contain Mg2+-dependent ATPase, Na+,K+-stimulated ATPase, Na+-stimulated ATPase and K+-stimulated ATPase. The Na+,K+-activated, Mg2+-dependent ATPase was investigated further in relation to different pH and temperature conditions, and at various concentrations of protein, ouabain,
Y Prabhakara Rao
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Prawn postlarvae fishing in coastal Bangladesh: Challenges for sustainable livelihoods
Marine Policy, 2010 Fishing for prawn (Macrobrachium rosenbergii) postlarvae is a major contributor to the livelihoods of the coastal poor in Bangladesh, including women. A study of coastal livelihoods along the lower Pasur River in southwest Bangladesh indicates that on ...
Max Troell +2 more
exaly +2 more sources
Marine Policy, 2013 In Bangladesh, prawn (Macrobrachium rosenbergii) farming remains dependent on the capture of wild postlarvae as hatchery production is still inadequate.
Anna Carmen Occhipinti +2 more
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Detection of Bacteria and Fungi Associated with Penaeus Monodon Postlarvae Mortality [PDF]
Procedia Environmental Sciences, 2015 Diseases on shrimp postlarvae caused by bacterial and fungal still remain an important concern due to their economic values. Application of microalgae as natural feed has brought promising results for growth of shrimp postlarvae. The aim of this research
Hermin Pancasakti Kusumaningrum
exaly +2 more sources
On the Postlarva of the Goby Lebetus
Journal of the Marine Biological Association of the United Kingdom, 1971An examination of the postlarvae of the goby Lebetus Winther collected in the neighbourhood of Plymouth shows that there are two forms, separable on degree of development of the fins, meristic characters and body proportions. The differences are sufficient to indicate that there must be two species whose identity can only be made certain by rearing ...
null Neclâ Demir, F. S. Russell
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Copper-induced oxidative stress and biomarkers in the postlarvae of Penaeus indicus
Environmental Science and Pollution Research, 2020The objective of the present research is to study the levels of reactive oxygen species (ROS) and protein carbonyl (PC) and the functional protein levels of metallothioneins (MT) in Penaeus indicus postlarvae (PL) upon sublethal copper exposure and to determine the biomarkers. The PL were exposed to sublethal copper of 0.164 ppm.
Samuel David Raj, Thatipaka +2 more
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Biofloc as a potential natural feed for shrimp postlarvae
International Biodeterioration & Biodegradation, 2016Abstract In this study, the suitability of excess biofloc that was discarded as waste from Litopenaeus vannamei farm effluent was investigated for effectiveness as a dietary replacement in rearing L. vannamei postlarvae (PL). A commercial shrimp diet (control) was compared to four diets containing dried waste biofloc at 25%, 50%, 75% and 100 ...
Helena Khatoon +6 more
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Speed and Direction of Swimming by Postlarvae of the American Lobster
Transactions of the American Fisheries Society, 1989Abstract The postlarva (larval stage IV) of the American lobster Homarus americanus is very different in form and behavior from earlier larval stages. Recruitment to the benthic population occurs during the postlarval period. Field observations in Rhode Island nearshore waters showed most postlarvae to be swimming in northerly to easterly directions ...
Cobb, J. S. +3 more
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Effects of High pH on Macrobrachium rosenbergii Postlarvae
1984By adjusting pH through additions of NaOH solution (~.8N), the response of recently metamorphosed Macrobrachium rosenbergii postlarvae to pH values ranging from 7.5 to 12.0 was determined. At pH 9.0 weak animals and subsequent mortalities were observed. At pH 9.5 or greater, mass mortalities occurred.
Hummel, Charles G. +3 more
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