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Week 16 Video Presentation: Human Impacts of Fish Biodiversity
EH
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Emily Hollins
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Updated Apr 25, 2022
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Chapters
00:00
Chapter 1
00:19
Chapter 2
00:28
Chapter 3
02:34
Chapter 4
02:40
Chapter 5
03:54
Chapter 6
04:43
Chapter 7
05:35
Chapter 8
Audio Transcript
Auto-generated
00:01 - 00:06
this project is being done on humans impact on the world's rivers.
00:07 - 00:11
With a primary news article in a primary literature article
00:12 - 00:17
that are based on the freshwater problems
00:17 - 00:17
that
00:18 - 00:20
are being caused by human activity.
00:21 - 00:25
The news article is from is titled human damage
00:25 - 00:28
done to more than half of all rivers worldwide.
00:30 - 00:37
It is safe to say that half of the rivers have been affected somehow by human activity
00:38 - 00:39
as
00:39 - 00:39
what
00:40 - 00:41
as well as
00:42 - 00:44
learning from the research.
00:45 - 00:47
The news article stated that
00:48 - 00:51
less than 15% of rivers with
00:52 - 00:55
fish population had been able to escape the
00:56 - 00:58
larger damages of
00:59 - 01:01
human activity like over exploitation,
01:02 - 01:04
the burning of fossil fuels or the dumping of waste.
01:05 - 01:07
From the research
01:08 - 01:10
that was published in the journal Science,
01:10 - 01:15
The researchers assessed around 1500 rivers across the world
01:16 - 01:18
and from this,
01:18 - 01:20
the news article
01:20 - 01:22
stated that
01:22 - 01:23
this
01:23 - 01:23
the
01:24 - 01:26
problems that are increasing are due
01:26 - 01:32
to larger companies and larger industries that
01:32 - 01:33
dump and
01:35 - 01:38
push their waste into art into
01:39 - 01:40
these fishes
01:40 - 01:41
ecosystems.
01:42 - 01:43
Many
01:43 - 01:48
fish are going extinct in salt water as well as fresh water because of
01:48 - 01:51
dumping and human
01:51 - 01:52
activity.
01:52 - 01:58
The worst areas that are being hit by this
01:58 - 02:05
per the news article are in the more metropolitan areas like europe, in the U. K.
02:05 - 02:07
And north America like the United States
02:08 - 02:11
as this news articles from the BBC. So
02:11 - 02:14
for an example of the river thames in London,
02:15 - 02:15
the
02:16 - 02:20
News article revealed from the research as well
02:20 - 02:23
that rivers and lengths are freshwater systems cover
02:23 - 02:26
less than 1% of the planet's surface,
02:26 - 02:27
but there
02:27 - 02:28
vital
02:29 - 02:32
to the world's surviving and progressing.
02:34 - 02:37
The primary literature article is titled
02:37 - 02:42
human impacts on global freshwater biodiversity.
02:43 - 02:47
The main causes of the problems with biodiversity is because of
02:47 - 02:53
the removal or the introduction of non native or invasive species.
02:54 - 02:58
As stated in the news article, Rivers and Lakes cover less than one
02:59 - 03:00
of the earth's surface.
03:01 - 03:06
But because of its large representation with biodiversity,
03:07 - 03:09
Over 10,000 fish species
03:10 - 03:11
are a part of
03:11 - 03:13
the vertebrae is in the world.
03:16 - 03:21
More than half of the river basins in the world
03:21 - 03:22
have
03:23 - 03:29
had have been scored a cumulative change score in biodiversity. Facets or C. C. D. E.
03:29 - 03:31
F. Higher than six,
03:31 - 03:34
which reveals that there is a
03:35 - 03:36
problem
03:36 - 03:42
in the with the human impacts on fish biodiversity
03:43 - 03:48
though there is an increase in the local diversity because
03:48 - 03:52
of the environmental pollutions and pollutants caused by humans.
03:54 - 03:56
The figure
03:56 - 03:58
from the
03:59 - 04:01
research reveals that there is an
04:01 - 04:03
inverse trend
04:03 - 04:05
for freshwater fish
04:05 - 04:06
in the
04:06 - 04:08
taxonomy,
04:08 - 04:11
the phyllo genetic and the functional richness
04:11 - 04:16
in over half of the world's rivers.
04:17 - 04:20
From the research, it stated that around
04:21 - 04:22
11,000
04:23 - 04:25
fish species have been
04:26 - 04:33
looked at but and 100 and 70 fish species went extinct in a in a single river basin,
04:34 - 04:36
though the number could be skewed because of
04:37 - 04:39
the lack of efficiency between
04:40 - 04:42
the true extinction date and when it was reported
04:47 - 04:49
to be to continue
04:49 - 04:50
the
04:51 - 04:53
C. C. B. F.
04:53 - 04:56
Was positively linked to human activities
04:56 - 04:58
related to
04:59 - 05:03
development in the economy or industrialization
05:04 - 05:05
and for example,
05:06 - 05:07
human for a parent
05:07 - 05:09
humanity's rip current.
05:11 - 05:15
Most of the water use that is being taken from our freshwater systems
05:16 - 05:18
was for agricultural industry,
05:18 - 05:19
which
05:19 - 05:21
significantly
05:21 - 05:24
increase the CCB F score
05:26 - 05:27
and the C.
05:27 - 05:30
CBS score was positively related to richness in native species
05:30 - 05:34
in most of the realms that were being researched.
05:37 - 05:41
These are the works cited. It is safe to say that the news article
05:42 - 05:44
did its best to accurately
05:45 - 05:47
report what the
05:48 - 05:50
primary literature article was trying to say.
05:50 - 05:54
Of course, that there are a few areas that were
05:54 - 05:57
pumped up for people
05:57 - 05:59
for the media to understand.
06:00 - 06:03
But it did truly relate to the primary
06:03 - 06:08
literature article on how humanity has been destroying
06:09 - 06:11
most of our rivers through
06:11 - 06:13
over exploitation,
06:14 - 06:16
the burning of fossil fuels and more.
06:17 - 06:18
Thank you.
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