Results 141 to 150 of about 540 (162)
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Oxygen Consumption and Ammonia Excretion During the Moulting Cycle in the Shrimp Xiphopenaeus kroyeri

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 1998
Abstract Xiphopenaeus kroyeri (Heller, 1862) is one of the main contributors to the benthic megafauna biomass in Sao Paulo State littoral coast (Brazil). Routine respiration ( R ) and ammonia–N excretion ( U ) rates, defined as those measured during minimum but uncontrolled activity, were quantified in different-sized shrimps at stages C/D 0 , A/B,
P.S.M Carvalho, V.N Phan
openaire   +1 more source

Exploring chitin morphologies in cuticle fragments of Xiphopenaeus kroyeri by atomic force microscopy

Carbohydrate Polymers, 2002
Abstract Shells of Xiphopenaeus kroyerishrimp were submitted to mild acid and alkaline treatments to produce α chitin films, which were characterised by infrared spectroscopy. Dynamic AC operational mode atomic force microscopy (AFM) was used to image the external surface and regions of an inner surface of the cuticle. All samples were scanned in air.
C.T Andrade   +3 more
openaire   +1 more source

Population dynamics of the seabob shrimpXiphopenaeus kroyeri(Dendrobranchiata, Penaeidae) in south-eastern Brazil

African Journal of Marine Science, 2013
The population dynamics, including the sex ratio, reproductive period, individual growth and longevity, and population structure of the shrimp Xiphopenaeus kroyeri, are described. The shrimps were collected monthly from July 2005 to June 2007 at four sites in Ubatuba Bay, Brazil.
Heckler, G.   +4 more
openaire   +3 more sources

EROD activity and genotoxicity in the seabob shrimp Xiphopenaeus kroyeri exposed to benzo[a]pyrene (BaP) concentrations

Environmental Toxicology and Pharmacology, 2012
Seabob shrimp Xiphopenaeus kroyeri is a marine species that lives in shallow waters of coastal environments, often impacted by polycyclic aromatic hydrocarbons (PAH) pollution. In the present study, seabob shrimp were exposed for 96 h to benzo[a]pyrene (BaP) at the nominal concentrations of 100, 200, 400 and 800 microg-L(-1).
Arthur José, da Silva Rocha   +7 more
openaire   +2 more sources

Spatiotemporal evaluation of Xiphopenaeus kroyeri (Heller, 1862) abundance in a region of the Southwest Atlantic shelf

Continental Shelf Research, 2019
Abstract Several activities, such as port and fishing operations, exploit coastal marine ecosystems around the world, creating significant environmental impact. Since these activities often overlap spatially, they can interfere with each other. This paper aims to evaluate the spatiotemporal variability in the relative abundance of the Atlantic seabob
Juliana Almeida Kolling   +2 more
openaire   +1 more source

Morphometric variation in the shape of the cephalothorax of shrimpXiphopenaeus kroyerion the east coast of Brazil

Journal of the Marine Biological Association of the United Kingdom, 2012
The objective of this study was to analyse the differences in shape of the cephalothorax in four fishery stocks of sea-bob shrimpXiphopenaeus kroyerithat are distributed on the east coast of Brazil, applying geometric morphometry as the analytical tool. Samples were collected at the fishing ports of Caravelas (17°43′S 39°15′W), Vitória (20°15′S 40°14′W)
Fábio Guilherme Bissaro   +2 more
openaire   +1 more source

A Kinetic Characterization of (Na+, K+)-ATPase Activity in the Gills of the Pelagic Seabob Shrimp Xiphopenaeus kroyeri (Decapoda, Penaeidae)

The Journal of Membrane Biology, 2014
We characterize the kinetic properties of a gill (Na(+), K(+))-ATPase from the pelagic marine seabob Xiphopenaeus kroyeri. Sucrose density gradient centrifugation revealed membrane fractions distributed mainly into a heavy fraction showing considerable (Na(+), K(+))-ATPase activity, but also containing mitochondrial F0F1- and Na(+)- and V-ATPases ...
Francisco Assis, Leone   +6 more
openaire   +2 more sources

Período reprodutivo do Xiphopenaeus kroyeri (Heller, 1862) capturados em Lucena-PB

2020
Hildemário Castro Neto   +2 more
openaire   +1 more source

Ovarian morphology and oocyte development in the seabob shrimp Xiphopenaeus kroyeri: a histological and histochemical approach for the study of penaeid reproduction

Aquaculture, 2023
Cecília Craveiro   +7 more
openaire   +1 more source

Effect of 4-Hexylresorcinol and Sodium Metabisulphite on Spoilage and Melanosis Inhibition in Xiphopenaeus kroyeri Shrimps

Journal of Food Processing and Preservation, 2017
Juliana Antunes Galvao   +2 more
exaly  

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