Results 151 to 160 of about 613 (182)

Food consumption and gastric emptying of Farfantepenaeus paulensis

open access: yesAquaculture, 2005
Abstract The effect of Farfantepenaeus paulensis body weight (BW) on food consumption (FC) and gastric emptying (GE) was determined for four shrimp size classes (SC) under laboratory conditions: SC 1  = 1.36 ± 0.43 g (mean wet BW ± S.D.); SC 2  = 2.99 ± 0.47 g; SC 3  = 5.55 ± 0.52 g and SC 4  = 7.23 ± 0.50 g. FC increased gradually with shrimp size,
R. Soares   +3 more
core   +3 more sources

Long-term ammonia toxicity to the pink-shrimp Farfantepenaeus paulensis

open access: yesComparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2009
Juvenile pink-shrimp Farfantepenaeus paulensis were exposed (75 days) to NH(3) (0.016-0.287 mg L(-1)) under static condition with water renewal every 24h. Experiments were performed at 20 degrees C, at a water salinity of 15 ppt, and at pH 7.8. Endpoints analyzed were survival, growth and predation rates. After 75 days of exposure, survival was >or=90%
Kleber Campos, Miranda-Filho   +3 more
core   +5 more sources
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Purification and partial characterization of the plasma clotting protein from the pink shrimp Farfantepenaeus paulensis

Comparative Biochemistry and Physiology - B Biochemistry and Molecular Biology, 2005
A clotting protein (CP) was purified from the plasma of the pink shrimp Farfantepenaeus paulensis by sequential anion-exchange chromatography. The shrimp CP was able to form stable clots in vitro in the presence of hemocyte lysate and Ca2+, suggesting that the clotting reaction is catalyzed by a Ca2+-dependent transglutaminase present in shrimp ...
Luciane Maria Perazzolo   +2 more
exaly   +3 more sources

Feeding rhythms and diet of Farfantepenaeus paulensis under pen culture in Patos Lagoon estuary, Brazil

open access: yesJournal of Experimental Marine Biology and Ecology, 2005
Abstract The feeding habits of Farfantepenaeus paulensis under pen culture in the Patos Lagoon estuary (Brazil) were studied. A total of 1074 shrimp had their stomach contents analyzed. Samples were taken bi-hourly over a 24 h period at about 10 day intervals during 2 months. F. paulensis did not exhibit strict feeding periodicity (except at D 21–
R. Soares   +3 more
openaire   +2 more sources

Effects of captivity and eyestalk ablation on antioxidant status of shrimps (Farfantepenaeus paulensis)

Aquaculture, 2004
The effects of 45 days of captivity and eyestalk ablation on the activity of the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) as well as the levels of total glutathione content (TGSH) were evaluated in shrimp hepatopancreas (Farfantepenaeus paulensis).
Eduardo A. Almeida   +3 more
openaire   +2 more sources

Influence of biofilm on the production of Farfantepenaeus paulensis in pens in the Patos Lagoon estuary

Aquaculture International, 2018
The objective of the present work was to determine the influence of artificial substrates that increase the area for biofilm development on the production performance of Farfantepenaeus paulensis juveniles in pens. Shrimp were stocked at a density of 20/m2 in pen structures (bottom area = 50 m2) that were installed in the Patos Lagoon estuary.
Eduardo Luis Cupertino Ballester   +5 more
openaire   +1 more source

Effects of age and size on reproductive performance of captive Farfantepenaeus paulensis broodstock

Aquaculture, 2004
Abstract The performance of captivity-reared Farfantepenaeus paulensis broodstock of different ages (10 and 16 months old) and sizes were compared in two separate 30-day-long trials. For each trial, groups of 20 males and 30 unilaterally eyestalk-ablated females were stocked into two 10-m2 maturation tanks.
Silvio Peixoto   +5 more
openaire   +1 more source

Spermatozoa ultrastructure of the pink shrimp Farfantepenaeus paulensis (Decapoda: Dendrobranchiata)

Acta Zoologica, 2011
AbstractBraga, A.L., Nakayama, C.L., Suita de Castro, L.A. and Wasielesky, W. 2011. Spermatozoa ultrastructure of the pink shrimp Farfantepenaeus paulensis (Decapoda: Dendrobranchiata). —Acta Zoologica (Stockholm) 00: 1–6.The spermatozoa ultrastructure of the pink shrimp Farfantepenaeus paulensis was investigated in this morphological study ...
André L. Braga   +3 more
openaire   +1 more source

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