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.
Both the reading passage and the lecture focuses how to increase the population of tuna for fishing and not endanger their population. The former tries to give three reasons why there is a current decline in fishing of tuna and the growing of young tuna on the farms, but the latter disagrees on all the three reasons and provides with methods for better ways for increasing the population of tuna.
First of all, the passage mentions that in captivity the female tuna avoids to lay eggs. It further mentions that that the farmers should capture more of young wild tuna and grow them in the cage until they are large enough to be sold this in turn will reduce the decline of the tuna population. However, the professor in the lecture mentions that researchers have devised an hormone that can be injected in the tuna that will help the female tuna fish to lay eggs in captivity. According to the professor, the researcher have tested this and there are no health risks involved and with this method the population of the wild tuna won't be affected.
Second of all, the passage talks about the high expense the farmers have to face for raising the young wild tuna in their farms because tuna's diet include high protein from several other small fishes. Tuna needs almost 70 kilograms of these small fishes to feed on for the supply of high proteins and nutrients they desire which in turn helps the tuna to grow up to 700 kilograms. However, the professor in the lecture argues that the high-protein diet of tuna can be helped with the plants that has enough proteins and nutrients to fulfil tuna's food requirements. According to the professor, plants not only helps with the diet but these plants are almost inexpensive and can be easily afforded by the farmers.
Finally, the passage mentions that tunas that are confined in ocean cages are open to more risks of infestations of blood flukes. Nevertheless, unlike the two arguments about the professor in the lecture mentions that the if the cages are far deeper in the ocean that will help the tuna because the parasite cannot survive under such deep waters. Therefore, if the tuna are caged offshore in deep water it will save them from the infestations of blood flukes and help them grow.
Grammar and spelling errors:
Line 3, column 70, Rule ID: ADMIT_ENJOY_VB[1]
Message: This verb is used with the gerund form: 'avoids laying', 'avoids lying'.
Suggestion: avoids laying; avoids lying
...tions that in captivity the female tuna avoids to lay eggs. It further mentions that that the...
^^^^^^^^^^^^^
Line 3, column 110, Rule ID: ENGLISH_WORD_REPEAT_RULE
Message: Possible typo: you repeated a word
Suggestion: that
...avoids to lay eggs. It further mentions that that the farmers should capture more of youn...
^^^^^^^^^
Line 3, column 374, Rule ID: EN_A_VS_AN
Message: Use 'a' instead of 'an' if the following word doesn't start with a vowel sound, e.g. 'a sentence', 'a university'
Suggestion: a
... mentions that researchers have devised an hormone that can be injected in the tun...
^^
Line 3, column 603, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... risks involved and with this method the population of the wild tuna wont be affe...
^^
Transition Words or Phrases used:
but, finally, first, however, if, nevertheless, second, so, therefore, first of all
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 13.0 10.4613686534 124% => OK
Auxiliary verbs: 9.0 5.04856512141 178% => OK
Conjunction : 13.0 7.30242825607 178% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 26.0 22.412803532 116% => OK
Preposition: 57.0 30.3222958057 188% => OK
Nominalization: 5.0 5.01324503311 100% => OK
Performance on vocabulary words:
No of characters: 1858.0 1373.03311258 135% => OK
No of words: 393.0 270.72406181 145% => Less content wanted.
Chars per words: 4.72773536896 5.08290768461 93% => OK
Fourth root words length: 4.45244063426 4.04702891845 110% => OK
Word Length SD: 2.34708791532 2.5805825403 91% => OK
Unique words: 177.0 145.348785872 122% => OK
Unique words percentage: 0.450381679389 0.540411800872 83% => More unique words wanted or less content wanted.
syllable_count: 574.2 419.366225166 137% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 7.0 8.23620309051 85% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 13.0 13.0662251656 99% => OK
Sentence length: 30.0 21.2450331126 141% => The Avg. Sentence Length is relatively long.
Sentence length SD: 43.9674435767 49.2860985944 89% => OK
Chars per sentence: 142.923076923 110.228320801 130% => OK
Words per sentence: 30.2307692308 21.698381199 139% => OK
Discourse Markers: 6.38461538462 7.06452816374 90% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 4.0 4.19205298013 95% => OK
Sentences with positive sentiment : 6.0 4.33554083885 138% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.340617893196 0.272083759551 125% => OK
Sentence topic coherence: 0.131834104624 0.0996497079465 132% => OK
Sentence topic coherence SD: 0.061162262937 0.0662205650399 92% => OK
Paragraph topic coherence: 0.204989501212 0.162205337803 126% => OK
Paragraph topic coherence SD: 0.0337225126948 0.0443174109184 76% => OK
Essay readability:
automated_readability_index: 16.0 13.3589403974 120% => OK
flesch_reading_ease: 49.49 53.8541721854 92% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 13.8 11.0289183223 125% => OK
coleman_liau_index: 10.75 12.2367328918 88% => OK
dale_chall_readability_score: 8.34 8.42419426049 99% => OK
difficult_words: 80.0 63.6247240618 126% => OK
linsear_write_formula: 13.5 10.7273730684 126% => OK
gunning_fog: 14.0 10.498013245 133% => OK
text_standard: 14.0 11.2008830022 125% => OK
What are above readability scores?
---------------------
Write the essay in 20 minutes.
Rates: 73.3333333333 out of 100
Scores by essay e-grader: 22.0 Out of 30
---------------------
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.