Gator Hole Graphics
... 9. In years with heavy rainfall, isolated ponds crowded with fish do not form. Because of their unique fishing technique, wood storks have a harder time catching fish that are not packed together. Under these conditions, it would take more time and energy for parents fishing one at a time to catch ...
... 9. In years with heavy rainfall, isolated ponds crowded with fish do not form. Because of their unique fishing technique, wood storks have a harder time catching fish that are not packed together. Under these conditions, it would take more time and energy for parents fishing one at a time to catch ...
Effluents - University of Arizona
... matter can impact the receiving water. Wastewater from processing plants can also impact receiving waters if they are not treated sufficiently. Conventional water treatment plants, constructed wetlands, and irrigation of crop plants are suggested as methods of reducing negative impacts from eutrophi ...
... matter can impact the receiving water. Wastewater from processing plants can also impact receiving waters if they are not treated sufficiently. Conventional water treatment plants, constructed wetlands, and irrigation of crop plants are suggested as methods of reducing negative impacts from eutrophi ...
The Blow Fish - chem.uwec.edu
... sequence of the sodium-ion channel makes it immune from being bound by TTX. Tetrodotoxin will not recognize the channel in these organisms. The only known predators resistant to this toxin is the common garter snake. ...
... sequence of the sodium-ion channel makes it immune from being bound by TTX. Tetrodotoxin will not recognize the channel in these organisms. The only known predators resistant to this toxin is the common garter snake. ...
aquaculturehealth - Aquaculture Magazine Incorporating Aquaculture
... affect carp of any age. For example, it has been estimated that in natural outbreaks of disease, mortality may vary from 70 to 100 percent, the implication being that many, if not all, age groups are affected, (although it is difficult to understand how such figures can be obtained with any accuracy ...
... affect carp of any age. For example, it has been estimated that in natural outbreaks of disease, mortality may vary from 70 to 100 percent, the implication being that many, if not all, age groups are affected, (although it is difficult to understand how such figures can be obtained with any accuracy ...
Society for the Conservation of Reef Fish Aggregations
... many fish on the market When enforcement is easier If the species changes sex; aggregations may be important for communicating information on sex ratios and sex change If there is high wastage due to predation when hooked, or to mortalities in egg-bound fish when needed for the live fish ...
... many fish on the market When enforcement is easier If the species changes sex; aggregations may be important for communicating information on sex ratios and sex change If there is high wastage due to predation when hooked, or to mortalities in egg-bound fish when needed for the live fish ...
Post-settlement Diet Shift of Chlorurus sordidus and Scarus
... Li-Shu Chen (2002) Post-settlement diet shift of Chlorurus sordidus and Scarus schlegeli (Pisces: Scaridae). Zoological Studies 41(1): 47-58. Ontogenetic changes in the development of feeding structures and feeding habits of juvenile parrotfishes Chlorurus sordidus and Scarus schlegeli (Family: Scar ...
... Li-Shu Chen (2002) Post-settlement diet shift of Chlorurus sordidus and Scarus schlegeli (Pisces: Scaridae). Zoological Studies 41(1): 47-58. Ontogenetic changes in the development of feeding structures and feeding habits of juvenile parrotfishes Chlorurus sordidus and Scarus schlegeli (Family: Scar ...
. Carp, Cyprinus carpio Overview Overview table Invasion history
... macrophyte cover appear to be preferred sites. Males externally fertilize eggs and females spread them over aquatic plants. They spawn during spring and summer in temperate conditions and year round in tropical conditions. Eggs vary from 1.2 to 1.4 mm in diameter, are yellowish-green and usually hat ...
... macrophyte cover appear to be preferred sites. Males externally fertilize eggs and females spread them over aquatic plants. They spawn during spring and summer in temperate conditions and year round in tropical conditions. Eggs vary from 1.2 to 1.4 mm in diameter, are yellowish-green and usually hat ...
Balantidium coli
... breath, colitis (inflammation of the colon), abdominal pain, weight loss, deep intestinal ulcerations, and possibly perforation of the intestine. After ingestion of an infective Balantidium coli cyst, days to weeks may pass before infection occurs. ...
... breath, colitis (inflammation of the colon), abdominal pain, weight loss, deep intestinal ulcerations, and possibly perforation of the intestine. After ingestion of an infective Balantidium coli cyst, days to weeks may pass before infection occurs. ...
TIDES AND SEASCAPE CONFIGURATION: DETERMINANTS OF
... examination of these two important processes in tropical macro tidal areas may provide useful insights to understand what determines the connectivity between habitats at local scales, which in turn could contribute to the establishment of successful management strategies within Marine Protected Area ...
... examination of these two important processes in tropical macro tidal areas may provide useful insights to understand what determines the connectivity between habitats at local scales, which in turn could contribute to the establishment of successful management strategies within Marine Protected Area ...
Alien invasive fish species in Polish waters: an overview
... Poland. Similarly, the presence of European mudminnow, Umbra kramerii is disputable as only one record from the 1960s was reliably documented while in two other locations species identification is doubtful and it is supposed that it could have been the eastern mudminnow, Umbra pygmaea (Witkowski et ...
... Poland. Similarly, the presence of European mudminnow, Umbra kramerii is disputable as only one record from the 1960s was reliably documented while in two other locations species identification is doubtful and it is supposed that it could have been the eastern mudminnow, Umbra pygmaea (Witkowski et ...
Myxobolus cerebralis
Myxobolus cerebralis is a myxosporean parasite of salmonids (salmon, trout, and their allies) that causes whirling disease in farmed salmon and trout and also in wild fish populations. It was first described in rainbow trout in Germany a century ago, but its range has spread and it has appeared in most of Europe (including Russia), the United States, South Africa and other countries. In the 1980s, M. cerebralis was found to require a tubificid oligochaete (a kind of segmented worm) to complete its life cycle. The parasite infects its hosts with its cells after piercing them with polar filaments ejected from nematocyst-like capsules.Whirling disease afflicts juvenile fish (fingerlings and fry) and causes skeletal deformation and neurological damage. Fish ""whirl"" forward in an awkward, corkscrew-like pattern instead of swimming normally, find feeding difficult, and are more vulnerable to predators. The mortality rate is high for fingerlings, up to 90% of infected populations, and those that do survive are deformed by the parasites residing in their cartilage and bone. They act as a reservoir for the parasite, which is released into water following the fish's death. M. cerebralis is one of the most economically important myxozoans in fish, as well as one of the most pathogenic. It was the first myxosporean whose pathology and symptoms were described scientifically. The parasite is not transmissible to humans.