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.
TO BEGIN WITH, the first issue we encounter is associated with the inability of female tuna to lay eggs in captivity. They require free space to reproduce. The professor highlights that it is true that female tuna are unable to lay eggs but it can easily be overcome by injecting hormones to females. In this way, they can lay eggs reliably and there will be hazard to their population. On the other hand, the text posits that as young tuna are captured in cages to prevent from fishing will not lay eggs and it worsen the decline in wild tuna.
Moreover, another topic of the debate revolves around the cost of the wild tuna. The speaker points out that wild tuna farming indeed need high protein diet but it is not necessary that to obtain from other fishes. To add on, he mention that plants can also be used as a protein supplement which makes it inexpensive. However, the author mentions that because wild tuna feed on small fishes, it makes unlikely for farmers to make good profit and adds expense to them.
Thirdly, the final point of discussion is connected with the infestation of blood flukes. The lecturer claims that parasites affect every fish. If the farmers put the cages offshore blood flukes will not be able to continue their lifecycle and in this way they can save wild tuna from blood flukes. Nevertheless, the passage states that blood fluke weaken tuna and slow their growth.
To conclude , it is quite evident that the author and the lecturer had the conflicting views about wild tuna farming. They are having trouble finding common grounds on this issue.
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Grammar and spelling errors:
Line 1, column 513, Rule ID: IT_VBZ[1]
Message: Did you mean 'worsens'?
Suggestion: worsens
...t from fishing will not lay eggs and it worsen the decline in wild tuna. Moreover, ...
^^^^^^
Line 3, column 230, Rule ID: HE_VERB_AGR[1]
Message: The pronoun 'he' must be used with a third-person verb: 'mentions'.
Suggestion: mentions
...obtain from other fishes. To add on, he mention that plants can also be used as a prote...
^^^^^^^
Line 7, column 12, Rule ID: COMMA_PARENTHESIS_WHITESPACE
Message: Put a space after the comma, but not before the comma
Suggestion: ,
...a and slow their growth. To conclude , it is quite evident that the author and...
^^
Transition Words or Phrases used:
also, but, first, however, if, moreover, nevertheless, so, third, thirdly, it is true, to begin with, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 12.0 10.4613686534 115% => OK
Auxiliary verbs: 8.0 5.04856512141 158% => OK
Conjunction : 8.0 7.30242825607 110% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 30.0 22.412803532 134% => Less pronouns wanted
Preposition: 37.0 30.3222958057 122% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 1313.0 1373.03311258 96% => OK
No of words: 277.0 270.72406181 102% => OK
Chars per words: 4.74007220217 5.08290768461 93% => OK
Fourth root words length: 4.07962216107 4.04702891845 101% => OK
Word Length SD: 2.29889888423 2.5805825403 89% => OK
Unique words: 158.0 145.348785872 109% => OK
Unique words percentage: 0.570397111913 0.540411800872 106% => OK
syllable_count: 405.0 419.366225166 97% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 3.25607064018 184% => OK
Article: 8.0 8.23620309051 97% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 5.0 2.5761589404 194% => OK
Performance on sentences:
How many sentences: 15.0 13.0662251656 115% => OK
Sentence length: 18.0 21.2450331126 85% => The Avg. Sentence Length is relatively short.
Sentence length SD: 37.0744596125 49.2860985944 75% => OK
Chars per sentence: 87.5333333333 110.228320801 79% => OK
Words per sentence: 18.4666666667 21.698381199 85% => OK
Discourse Markers: 7.93333333333 7.06452816374 112% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 4.19205298013 72% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 7.0 4.27373068433 164% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.228656947928 0.272083759551 84% => OK
Sentence topic coherence: 0.0739491705589 0.0996497079465 74% => OK
Sentence topic coherence SD: 0.048699222158 0.0662205650399 74% => OK
Paragraph topic coherence: 0.131442719011 0.162205337803 81% => OK
Paragraph topic coherence SD: 0.017289284346 0.0443174109184 39% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.
Essay readability:
automated_readability_index: 10.1 13.3589403974 76% => Automated_readability_index is low.
flesch_reading_ease: 61.67 53.8541721854 115% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.1 11.0289183223 83% => OK
coleman_liau_index: 10.21 12.2367328918 83% => OK
dale_chall_readability_score: 8.46 8.42419426049 100% => OK
difficult_words: 69.0 63.6247240618 108% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 9.2 10.498013245 88% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?
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Rates: 75.0 out of 100
Scores by essay e-grader: 22.5 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.