Vertical Migration Pattern of Hookworm Larvae in Soil

Studies on hookworm larvae. V. Further observations of infective larvae in migration towards vegetables.

In the report III (1954) of this series, I reported the experimental results of some investigations carried out during the summer season from July to August 1952-1953. Through these former investigations, I came to understand many points of the migration towards vegetables of the hookworm larvae. However it was unexpected that most of them were easily destroyed by the sun's rays after migration...

Soil Acidity and Survival of Hookworm Larvæ

Vertical distribution of Baltic sprat larvae: changes in patterns of diel migration?

Ontogenetic and diurnal vertical migration patterns of Baltic sprat larvae were investigated for the periods 1989–1990 and 1998– 2002. Comparison of the results led to the hypothesis that the diel vertical migration behaviour of sprat larvae .10 mm has changed. In 1989 and 1990, sprat larvae migrated to the surface at night, whereas they stayed 30–50 m deep by day. From 1998 to 2002, sprat larv...

Ancylostoma caninum MTP-1, an astacin-like metalloprotease secreted by infective hookworm larvae, is involved in tissue migration.

Infective larvae (L3) of nematodes secrete macromolecules that are critical to infection and establishment of the parasite in the host. The dog hookworm Ancylostoma caninum secretes an astacin-like metalloprotease, Ac-MTP-1, upon activation in vitro with host serum. Recombinant Ac-MTP-1 was expressed in the baculovirus/insect cell system as a secreted protein and was purified from culture mediu...

Diel vertical migration and spatial overlap between fish larvae and zooplankton in two tropical lakes, Brazil.

The effect of fish larvae on the diel vertical migration of the zooplankton community was investigated in two tropical lakes, Finado Raimundo and Pintado lakes, Mato Grosso do Sul State, Brazil. Nocturnal and diurnal samplings were conducted in the limnetic region of each lake for 10 consecutive months from April 2008 to January 2009. The zooplankton community presented a wide range of response...