Hatching factors affecting

Hatch, F.T., Colvin, M.E. and SeidI, E.T. (1996). Stractural and Quantum Chemical Factors Affecting Mutagenic Potency of Aminoimidazo Azaarenes. Environ.Mol.Mutagen., 27, 314-330. 

The available evidence on the exudation of miscellaneous and unidentified compounds is also shown in Table 5.II. Nematode-stimulating and hatching factors (Table 5.IV) are also frequently present in root exudates. Likewise, factors that affect the growth of fungi, shown in Table 5.V, are commonly present. These data in Table 5.II-V, assembled by Rovira, suggest that most of the simple organic compounds formed in plants are able at times to escape from roots in at least detectable amounts. 

The deterioration of metals, commonly referred to as corrosion, is a critical factor affecting the useful life of metals in facilities. Most importantly, the rate of corrosion affects how long a particular metal component wiU function in its intended use. Some metals corrode at a very slow rate, which makes them good candidates for certain applications. For example, aluminum has been found to be an excellent material for hatch covers in atmospheric exposures. On the other hand, the use of 304 stainless steel for pipe hangers in piers over salt water has resulted in failures within a year. The application, the environment, and the intended service are critical to proper material selection. 

Fish are affected by pH. it is a iimiting factor for many aquatic species. As the pH decreases, physicai stress occurs to the mucous membranes and giiis of the fish. Their reproductive cycies become disrupted and their eggs don t hatch, or the baby fish, caiied fry, are born with physical defects. Many fish die from disease and loss of calcium and other eiectroiytes. The acidity of the precipitation can also cause aiuminum and other metals to leach out of the rock and soil, posing a toxic threat to the organisms. 

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