Wild tuna, a species of large ocean fish, have decreased in number because of overfishing Recently, attempts have been made to farm tuna by feeding the fish in ocean cages until they become large enough for sale. However, tuna farming has faced several problems and criticisms.
First, female tuna do not lay eggs in captivity, so tuna farmers must capture large quantities of young wild tuna to stock their farms, further reducing wild tuna populations. These young tuna are caged and fed until they are large enough to be sold. Since the captured females in tuna farms cannot lay eggs to replace the tuna that are sold, tuna farmers continue to catch young wild tuna to keep their farms going and so worsen the decline in wild tuna populations.
Second, tuna raised on farms are very expensive because they depend on a costly, high-protein food derived from other fish. Tuna feed almost exclusively on small fish, which supply them with the proteins and nutrients they require. A single tuna can grow more than four meters long, weigh close to 700 kilograms, and eat 70 kilograms of food a day! It is unlikely that tuna farms can remain profitable while supplying so much expensive food for the tuna.
Third tuna confined to ocean cages are likely to become infested with parasites, organisms that feed on and weaken the animal they attach to. Tuna farmers off the coast of southern Australia have had problems with infestations of blood flukes, a type of parasite that lives within the blood vessels and heart of infected fish. Parasite infestations weaken tuna, slow their growth, and can even cause death, usually by making them susceptible to other diseases. Tuna farms in southern Australia have had 10 percent of their tuna die before they could be sold.
Recently, there has been a ton of debate about if the tune farming can be made beneficial or not. More specifically, in regards to the reading text, the writer puts forth his idea that now-a-days tuna farming are facing lots of problems. In the listening, the lecturer is quick to point out that there some significant flaws in the writer's claims. In fact, the lecturer believes that according to the recent research, it has been observed that those concerns mentioned in the reading, can be easily overcome, and addresses, in detail, the trouble with each point made in the reading text.
To begin with, the writer claims that as the female tuna are not capable of laying eggs in large amount, the tuna farmers need to capture large quantities of the young tuna to ensure that they can sell these tuna when they become sufficiently large enough for selling them out, to keep their farms going. Therefore, this further causes a decline in tuna population. In the listening, the lecturer stand in firm opposition to this claim. He challenges this argument by mentioning that researchers has found that by injecting hormones into the body of female animal lead to better fertility. Moreover, he also mentions that this method also does not cause harm to the female tunas as well as the consumers.
Secondly, the author posits that raising tuna on farms are very expensive as tuna fishes need to feed costly, high-protein fishes as their food. In the listening, the lecturer rebuts this by asserting that it is not necessary that tuna fishes must be fed high protein fishes. Moreover, he elaborates on this by mentioning that, the same protein can be generated from the plants following more inexpensive process. Therefore, this ensures that tuna farms can remain profitable along with supplying the high-protein to the tuna fishes.
Finally, the author states that tuna fishes are vulnerable to parasite infestation as it has been found the in the coast of southern Australia that tuna fish with infestation of blood flukes, which slowed down the growth of the tuna fishes. Not surprisingly, the lecturer finds issue with this claim by contending that recent researchers has observed that if the cages of the tuna farm is moved further offshore, towards deeper in the ocean, the blood fluke infestation has stopped. Therefore, it has also increased the growth of the tuna fishes and reduces the chance to get susceptible to other diseases.
To sum up, the lecturer and the writer hold conflicting views on this.
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- Question Summarise the points made in the lecture being sure to explain how they case doubt on specific points made in the reading passage 3
Grammar and spelling errors:
Line 1, column 118, Rule ID: IN_REGARD_TO[1]
Message: Use simply 'regarding' or 'with regard to'.
Suggestion: regarding; with regard to
...e beneficial or not. More specifically, in regards to the reading text, the writer puts forth...
^^^^^^^^^^^^^
Line 1, column 209, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...th his idea that now-a-days tuna farming are facing lots of problems. In the list...
^^
Line 6, column 378, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...protein can be generated from the plants following more inexpensive process. Ther...
^^
Line 8, column 143, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...d the in the coast of southern Australia that tuna fish with infestation of blood...
^^
Line 11, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...writer hold conflicting views on this.
^^^^^^^
Transition Words or Phrases used:
also, but, finally, if, moreover, second, secondly, so, therefore, well, in fact, as well as, to begin with, to sum up
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 14.0 10.4613686534 134% => OK
Auxiliary verbs: 8.0 5.04856512141 158% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 20.0 12.0772626932 166% => OK
Pronoun: 42.0 22.412803532 187% => Less pronouns wanted
Preposition: 60.0 30.3222958057 198% => OK
Nominalization: 6.0 5.01324503311 120% => OK
Performance on vocabulary words:
No of characters: 2106.0 1373.03311258 153% => OK
No of words: 422.0 270.72406181 156% => Less content wanted.
Chars per words: 4.99052132701 5.08290768461 98% => OK
Fourth root words length: 4.53239876712 4.04702891845 112% => OK
Word Length SD: 2.5888926544 2.5805825403 100% => OK
Unique words: 212.0 145.348785872 146% => OK
Unique words percentage: 0.502369668246 0.540411800872 93% => More unique words wanted or less content wanted.
syllable_count: 640.8 419.366225166 153% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 7.0 3.25607064018 215% => Less pronouns wanted as sentence beginning.
Article: 14.0 8.23620309051 170% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 9.0 2.5761589404 349% => Less preposition wanted as sentence beginnings.
Performance on sentences:
How many sentences: 17.0 13.0662251656 130% => OK
Sentence length: 24.0 21.2450331126 113% => OK
Sentence length SD: 67.4057588948 49.2860985944 137% => OK
Chars per sentence: 123.882352941 110.228320801 112% => OK
Words per sentence: 24.8235294118 21.698381199 114% => OK
Discourse Markers: 6.94117647059 7.06452816374 98% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 5.0 4.19205298013 119% => OK
Sentences with positive sentiment : 9.0 4.33554083885 208% => Less positive sentences wanted.
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 4.0 4.27373068433 94% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.318966535808 0.272083759551 117% => OK
Sentence topic coherence: 0.0981781091629 0.0996497079465 99% => OK
Sentence topic coherence SD: 0.0881614312794 0.0662205650399 133% => OK
Paragraph topic coherence: 0.157871362928 0.162205337803 97% => OK
Paragraph topic coherence SD: 0.0912286613054 0.0443174109184 206% => More connections among paragraphs wanted.
Essay readability:
automated_readability_index: 14.5 13.3589403974 109% => OK
flesch_reading_ease: 55.58 53.8541721854 103% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.5 11.0289183223 104% => OK
coleman_liau_index: 11.96 12.2367328918 98% => OK
dale_chall_readability_score: 8.23 8.42419426049 98% => OK
difficult_words: 91.0 63.6247240618 143% => OK
linsear_write_formula: 13.5 10.7273730684 126% => OK
gunning_fog: 11.6 10.498013245 110% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
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Write the essay in 20 minutes.
Rates: 81.6666666667 out of 100
Scores by essay e-grader: 24.5 Out of 30
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.