Results 41 to 50 of about 115,613 (166)
Se estudia el desarrollo larvario del camarón de río del norte de Chile, Cryphiops caementarius, desde el estado de zoea 1 hasta el primer juvenil, caracterizando y analizando criterios que verificaron la aplicación de indicadores de tipo morfológico y ...
María C Morales, Jaime Meruane
doaj
One of the factors affecting the effectiveness of predatory coccinellids in an aphid infested crop is the food specificity of the predator. The response towards six species of aphids (Sternorrhyncha: Aphididae) was therefore tested in one of the most ...
Plamen KALUSHKOV, Ivo HODEK
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Study on the developmental function of CT14 using the model organism Caenorhabditis elegans
Objective·To investigate the effects of the cancer-testis antigen 14 (CT14) on embryonic and larval development in nematodes by using the model organism Caenorhabditis elegans (C.
YANG Shuwen +4 more
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Phyllocnistis citrella (Stainton), is one of the most worrying pests in the citrus growing sector. Insects’ fat body is an important tissue where numerous metabolic processes take place; its significance can be clearly seen in its main functions, i.e ...
Gloria Valeria Vaca +2 more
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Climate change has driven global temperature increases, resulting in severe heat waves, altered precipitation patterns, and extreme weather events. In April 2024, a massive die‐off of hybrid catfish larvae and fry occurred in Thai aquaculture farms ...
Juniman Rey +16 more
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Since the relative ratios of Ca2+ and Mg2+ can vary greatly from one water body to another, and lime used for the increase of water hardness or pH can have different ratios of Ca2+ and Mg2+ in its composition, the objective of this study was to analyze ...
Lenise Vargas Flores da Silva +2 more
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In this paper, we describe and illustrate the morphology of the first larval stage of the prawn Macrobrachium brasiliense. Two ovigerous females were obtained in a stream environment, which belongs to Paraná River Basin, Southeastern of Brazil, and were ...
João Alberto Farinelli Pantaleão +3 more
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Larval Development and Metamorphosis in Sipuncula [PDF]
In a brief review of development of the phylum Sipuncula, four patterns of development are recognized: (1) direct with no pelagic stage; (2) one larval stage, a lecithotrophic trochophore; (3) two larval stages, a lecithotrophic trochophore and a lecithotrophic pelagosphera; (4) two larval stages, a lecithotrophic trochophore and a planktotrophic ...
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LARVAL DEVELOPMENT IN THE ASTEROID ECHINASTER ECHINOPHORUS
1. Echinaster echinophorus off the west coast of Florida was observed to spawn, from early April to late July, two different egg types: one type is pelagic, brown to black in color and 1.0-1.3 mm in diameter, while the second is bright orange, ranges from 0.84 to 0.88 mm in diameter and settles immediately to the substratum after spawning. 2.
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