4.Disscussion
4.1 Behavior observation of presence in water column and bury activity
Burial activity is one of the most important aspect of eel lifestyle. Despite on fact that in our experiment most of eels decided to stay in water column , about 14 eels at the end of trials were partly present in a water column. Most of them give preference to medium and large size gravel , both with 5 eels respectively. Suitable size of holes between gravel might be a reasonable explanation why eels choose especially this type of habitat.
It is sensible that we did not observe any of burring eel in small gravel because of subtract tight composition, which do not allowed eels to bury in it. Explanation why there is so small number off burying eels in small
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Good substacte,with fine coarse wholes is a perfect habitat which help young eels be less vulnerable and increase their chances for survivor. That also might explain why we bserved that juvenile eel had a lower preference for sediment substrata with grain sizes .It is because they simply could not bury(GS). However, in a results he had some who were found in this habitat,and it might confuse the reader. Those eels we found between the box with subtract and plastic quadrant. Expecially this behaviour we found in a smaller eels because of their tiny size and probably hiding from other larger …show more content…
It is strongly recommended to avoid those activation to protect stream environment for eel natural habitat.(17)
Thus, in light of the results in this study, it can be assumed that excavation and habitat destruction observed in recent years has probably reduced the quantity and quality of suitable habitats for juvenile eel, which could be negatively affecting both ecologically and economically.
4.5 Further studies
Various observations European eel life history should be describe not as truly catadromous, but "facultative or semi catadromous". Due to fact that European eel were found in different waters such as freshwater,brakish and coastal,and freshwater phase is not be a essential part of their life history, could not make them not truly catadromous species.(18)
This is the only experimental study until now, as far as we know, that contribute to the understanding the habitat choice of eel juveniles in brackish salinity water .Therefore further studies should be taken in order to contribute better understand about substrate selection in all Anguillae group.
Eels used to migrate yearly from the Chesapeake Bay but have been blocked by the large dams on the Susquehanna River. Young eels were captured below the dams and transported here to continue their life span in these home waters. Eels are hosts for mussels which help purify the waters of Pine
This behavior was observed in all the three experiments and through the period of observation, isopods seemed to move to different sponges before they settled down behind one of them. The χ2 value was 0.03842932, df was 3 and hence the P value was less than 0.001 which proves that this result is not a result of random probability and is in fact significant and reliable. In Trial 2, the hypothesis was that most isopods would go to the sponge with sucrose solution and our hypothesis was proved correct through the experiment. It was observed that a majority (55%) of the isopods preferred sucrose relative to the other sources of moisture.
70 common limpets were identified in the 40m bracket identified as the littoral zone, between 0m to 40m. The common limpet employs a range of adaptations to survive the abiotic and biotic conditions associated with the littoral zone. Firstly, the limpet uses a structural adaptation to overcome the harsh wave action in the tidal zone, by using their radula to grip on to imperfections in the rock. Furthermore, they employ a behavioural adaptation of grinding their shells down into the rock, to further ensure they are not swept away by the tide. Additionally, the limpet utilises a behavioural adaptation regarding its tough shell and powerful radula, to defend against predators.
THE GREAT LAKES The great lakes are comprised of 5 different fresh water lakes, Superior, Huron, Michigan, Ontario, and Erie. The lakes are situated along the US-Canadian border, touching Ontario in Canada and Michigan, Minnesota, Wisconsin, Illinois, Ohio Pennsylvania, Indiana and New York in the United States. Roughly 34 million people in Canada and the United States live in the great lakes basin, and also 35 000 plants and animals, over 170 of those being fish, inhabit the great lakes (Zimmermann). This significantly large water body holds an estimate of 6 quadrillion gallons of water.
The stickleback fish have gained much attention from evolutionary biologists because of their historic ability to adapt to conditions that were not favorable and to survive successfully in them. They are also able to give researchers insight into how evolution occurs in other organisms. The stickleback normally spawns in freshwater but lives in the salt-water ocean. Long ago when ice melted and receded, the fish were given new possible places to inhabit and they did, expanding their spawning locations to newly formed streams. Eventually, though, the streams were cut off from the sea and the once salt-water sticklebacks were faced with the problem of being stuck in freshwater with no way to get out.1
The Louisiana coast has wetlands and estuaries and several ecosystem services for habitat for breeding, spawning, feeding and nursery for many species of fish. The same marshes for the winter habitat
I had the opportunity to observe Kentucky Aquatics, a local club team, that was under the coaching of Chris Fugmann. Chris started up a swim program and single handedly ran it for 26 years before combining swim teams with wildcat aquatics to become Kentucky aquatics. I selected this assignment because I want to pursue a swim coaching career and I would be able to apply concepts learned in KHP 547 in becoming a more effective coach. I had a positive experience when I completed the observation and I was able to apply it to the concepts learned in this course. Some of the concepts that I witnessed included operant conditioning, motivation tactics, and motivational climate.
“Finding Fish” by Antwone Quenton Fisher was published in 2001, and is a novel chronicling Antwone Fisher’s childhood to early adulthood years. He faced many trials and tribulations growing up motherless and fatherless causing him to be sucked into the system which led him to face psychological development issues down the road. Antwone Fisher was born on August 3, 1959 by Eva Mae Fisher who was imprisoned at the time of his birth, and his father was killed few months prior to his birth leaving him parentless and abandoned. Due to his mother being in prison the time of his birth, Antwone’s mother was found unfit and revoked of her prenatal rights; and he was placed into foster care with the Pickett’s. The Pickett’s raised other foster
Today, the Salton Basin is 35 miles long, 15 miles wide, and 30 feet deep (2). It is also around 228 feet below sea level (2). It’s current salinity is around 48,000 milligrams per liter, or 37 percent higher than the Pacific Ocean which allows only for salt-tolerant fish and birds to survive (2). The Salton Basin of Imperial Valley is one of the most biologically diverse areas in California with over 400 species and subspecies found there (2). Common mammals that can be found in the Imperial Valley are raccoons, coyotes, striped skunks, desert pocket mice, Merriam 's kangaroo rats, desert cottontails, Valley pocket gophers, and Round-tailed ground squirrels.
Finding Fish is a memoir written by Antwone Quenton Fisher in 2001. Fisher is an American director, screenwriter, author and film producer born on August 3, 1959, in a Cleveland, Ohio prison. Fish’s autobiographical book, Finding Fish, was briefly a New York Times Best Seller. Fish wrote Finding Fish to inform people of his own unfortunate, abusive childhood, but also how he was able to make a life for himself later on in life. He also wrote Finding Fish to give troubled children hope that no matter what, life will get better, if you make the change happen.
Genz refers to this as an unexplored area weedy area that is productive in the early winter. Nevertheless, the fish will move into the deeper water during the later season, so this does not work as well. A sticky area refers to a location with ground that is not too soft or hard. This is a heavenly paradise for burrowing insects and fish know it. This is also a place where fisherman can catch their limit.
On the trip with SWEEP the health of the Susquehanna River was studied. In order to do that, chemical test, biological tests, and physical observations were made. Chemical testing showed the more scientific side of water quality, such as the amount of nitrates, phosphates, the pH values, temperature, dissolved oxygen, and turbidity. Searching for macroinvertebrates was the biological testing. Certain macroinvertebrates and the quantity found determines how healthy the stream is.
There are three ways of fish migrations. First is upstream, second is downstream and last one is laterally. As Tor sp. is practices long distance migration, the dam impoundment would block their nature behavioural of migrating. Thus, fish passes can be the solution to the trapped fish in order to assist their migratory.
Even when the differences in language are apparent, mentors in this case can also facilitate discussion to find common ground. This would have been an asset when simulating the process of the European Eel management. As an example, stakeholders had different definitions attached to the word ‘sustainable’. Stakeholders such as HORECA and DUPAN labeled eel fishing as a sustainable practice given appropriate measures in catching, restocking and fishing eel. While our stakeholder, the good fish foundation did not recognize any sustainable method in fishing eel, considering its critically endangered status and the uncertainties surrounding the decline in the eel population.