Introduction
The assignment of this study is to understand the fish passage failure, to give informed information to design or manage operational changes that can increase fish pass efficiency and the sustainability of fish species. Mechanisms of fish pass failure, such as structure, environment and behavior factors can be a detriment in aiding passage structures as well as a benefit. Without the reconstruction of a fish pass, the juvenile elves become isolation in turn imposes elves’ distinction. It is therefore very important that the objective in re constructing a fish pass is clear, of the aquatic changes being made, to the enhancement of elves migration, produce sustainability. This can include to policy makers and efficiency cost to perform criteria for ranking severity to priorities fish passage, therefore prioritizing the re constructing of a fish passage structure, in allowance to enable fish to pass barriers that reflect obstacles.
Method
The study conducted a literature search for peer reviewed articles pertaining directly to evaluation of the fish passage. The review articles included, re construction of the fish passage, prioritizing the severity of fish passage remodeling and reconstruction, and preventing the extinction of fish species. The student reviewed four studies based on the sustainability of juvenile elves and the reconstruction.
The definition of a fish pass is also known as a dyke, waterway, cannel, dam, a fish passage in which the juvenile eels, fish, water species pass through, to travel up stream, or downstream.
Results
The four case studies that were reviewed in analysis the fish passage are as follows:
The first article titled “Enhancing immigration and recruitment of eels; the use of...
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...studies need to be made.
Works Cited
Bunt, C. M. (2001). Fishway entrance modifications enhance fish attraction. Fisheries Management & Ecology, 8(2), 95-105. doi:10.1046/j.1365-2400.2001.00238.x
Kemp, P. S., & O'Hanley, J. R. (2010). Procedures for evaluating and prioritising the removal of fish passage barriers: a synthesis. Fisheries Management & Ecology, 17(4), 297-322. doi:10.1111/j.1365-2400.2010.00751.x
Knights, B., & Whites, E. (1998). Enhancing immigration and recruitment of eels; the use of passes and association trapping systems. Fisheries Management and Ecology, 5, 459-471.
Prato, E. E., Comoglio, C. C., & Calles, O. O. (2011). A simple management tool for planning the restoration of river longitudinal connectivity at watershed level: priority indices for fish passes. Journal Of Applied Ichthyology, 2773-79. doi:10.1111/j.1439-0426.2011.01856.x
Culvert design is extremely important because fish passage in rivers, creeks and other waterways are essential for reproduction and survival of many fish species. If poor designs of culverts are installed, upstream fish migration can be impeded. Many culverts have been designed especially for fish migration and passage. Culverts have many impacts to stream system even when fish passage is successful including; channel disruption during construction, hydraulic effects up and downstream, increased
chapter 17 in the textbook, “Reconstruction.” During reconstruction, the South was brought back into the union but Republican hopes of having the South follow northern lines of development were never realized. Race relations and the comeback of conservative Democrats extremely limited African-American opportunities. The northern industrial continued by economic advances were less by corruption and the depression of 1873. The Compromise of 1877 ended the Reconstruction era.
facilities. Reconstruction, a period of rebuilding in the American South that lasted from the end of 1865 to 1877, put a temporary stop to these policies in some places. Blacks had won enough political power in the South during Reconstruction to prevent the passage of legislation designed to deny them access to public facilities. Also, after the Civil War the national government remained committed to upholding at least some degree of racial fairness. However, even during Reconstruction, most Southern
had devastated the Mediterranean economy, and the Romans were anxious to prevent another messianic outbreak, which could easily lead to another 500,000 deaths-as the Bar Kochba revolt would demonstrate a generation later. In order to make any reconstruction of the country lasting, the Romans needed to offer the Jews alternative stories that would distract them from the messianic messages inherent in the Torah, and persuade them to accept Roman values. Titus Flavius Vespasianus 39-81 According