File:Aquatic life (1916-1917) (19559108488).jpg

Title: Aquatic life
Identifier: aquaticlife219161917baus (find matches)
Year: 1916-1917 (1910s)
Authors: Bausman, Joseph E
Subjects: Aquariums; Fish culture
Publisher: Philadelphia : J. E. Bausman
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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92 Slqaattr JLitt vegetable matter and small infusorians. It has been stated that very young fish will follow a female to catch the young as they are liberated. Another food crustacean is Cypris, though it is not as desirable as Daphnia. It has a hard bivalve shell and in conse- quence is sometimes called the hard-shell water flea. Its movements are slow, and even either in swimming or crawling over the bottom. The young are developed
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Drawings by Author in a brood pouch, but, unlike the Daphnia are not fully mature when expelled. It multiplies even more rapidly than Daphnia. Every aquarist knows Cyclops. It will appear in most any aquarium that has been standing for a time without fishes. It has a long, tapering body, ending in two thin, sharp appendages; a single eye in the centre of the head ; two long anten- nae used for propulsion. The female bears two egg-sacs, each containing about twelve eggs. The young mature in about fifteen days, and themselves bear eggs. The female will develop egg-sacs every few days. The fairy shrimp, Gamarus, rarely ex- ceeds half an inch in length. In struc- ture it resembles the ordinary shrimp, being a more highly organized crustacean than the others discussed. It has two ways of moving through the water, swim- ming and hopping, although it usually swims. The large ones are very destruc- tive to young fishes, but the young shrimps serve as good fish food. It i'5 regretted that space does not per- mit a discussion of more of these inter- esting little animals. There are so many that it would take a large book to describe and illustrate them. It is to be hoped that these articles will arouse interest in the many minute forms of aquatic life that heretofore the aquarist has only re- garded as food for fishes, neglecting to study them from other than an economic standpoint. The Essex County Aquarium Society, Newark, has elected the following officers for the year: President, Max G. Ham- merschlag; vice president, G. VV. Ludolf; treasurer. Dr. William Bachmann ; secre- tary, William Feldman, 214 Runyon street, Newark, N. J. The society celebrated its first anni- versary on February 3d with a smoker- entertainment. Twenty new members were initiated. The meetings are held on the first and third Friday of each month, at the Newark Turn \"erein Hall, 186 William street, Newark, N. ). At the January meeting of the Boston Aquarium Society, Chief Deputy Game Warden ()rrin C. Boume delivered a lec- ture on the work of the Fish Commission of Massachusetts. The talk was illus- trated by lantern slides of the various fishes of the State, and scenes showing methods of culture and distribution.— Walter H. Chute, Secretarv.

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