The fresh-water fishes of Mexico north of the isthmus of Tehuantepec.

v.5(1904)

Experimental and theoretical analysis of the cyclic water gas shift reactor

Magdeburg, Univ., Fak. für Verfahrens- und Systemtechnik, Diss., 2015

Notes on fresh-water fishes from Mexico and Central America.

v.7:no.5(1907)

Late Devonian fresh-water fishes from the western United States / Robert H. Denison --

v.11:no.5(1951)

Systematics and zoogeography of the land and fresh-water mollusca of the New Hebrides.

Fieldiana Zoology v.43 contents

Some remarkable shells of a South American fresh-water mussel [by] Fritz Haas

v.31:no.3(1945)

New Caledonian land and fresh-water snails; an annotated check list.

v.41:no.3(1961)

The fresh-water fishes of North Borneo [by] Robert F. Inger and Chin Phui Kong.

v.45(1962)

A new catalogue of the fresh-water fishes of Panama, by Samuel F. Hildebrand.

v.22:no.4(1938)

Records of large fresh-water mussels.

v.24:no.24(1941)

Systematics of the land and fresh-water mollusca of the New Hebrides, [by] Alan Solem.

v.43:no.1(1959)

Check list of North American water-mites / Rodger D. Mitchell.

v.35:no.3(1954)

Protein content and electrophoretic profile of fat body and ovary extracts from workers of Melipona quadrifasciata anthidioides (Hymenoptera, Meliponini)

Workers of Melipona quadrifasciata anthidioides (Lepeletier, 1836) develop their ovaries and lay eggs, therefore the production of vitellogenin is expected. In electrophoretic profiles only fat body extracts from nurse workers and ovary extracts from newly-emerged workers show protein with molecular mass similar to vitellogenin. However, an increase in the protein content was detected in forager fat body. This increase was attributed to storage of vitellogenin or other proteins in the previous phase and not discharged into the hemolymph or to an effect of the increased titre of juvenile hormone in this phase of worker life over the fat body functioning.

Water depth selection during foraging and efficiency in prey capture by the egrets Casmerodius albus and Egretta thula (Aves, Ardeidae) in an urban lagoon in Rio de Janeiro State, Brazil

This study aimed to evaluate the water depth selection during foraging, the efficiency in prey capture, and the food items captured by Casmerodius albus (Linnaeus, 1758) and Egretta thula (Molina, 1782). The work was conducted at an urban lagoon, Lagoa Rodrigo de Freitas, Rio de Janeiro. Four transects were made each month (two in the morning and two in the afternoon) for six months. When the birds were detected foraging, the water depth and the types of prey captured were recorded. There was no significant relationship between the foraging efficiencies of the two species. However, they differed in relation to the water depth when foraging, and also in the food items captured. Casmerodius albus captured mainly fishes while Egretta thula captured mainly invertebrates. The results suggest that the differences in water depth when foraging and the food items captured allow a differential use of the food resources available by C. albus and E. thula at Lagoa Rodrigo de Freitas.

Zoogeography of the land and fresh-water mollusca of the New Hebrides, [by] Alan Solem.

v.43:no.2(1959)