photos belize experience
TRANSCRIPT
Photos Belize Experience
http://animoto.com/play/kXxJ95nlOqcazDkYfX28Cw
Belize Marine Research Lynn Seman
Joshua NielsenCari Quillen
Belize Research Trip http://ms2belize2012.blogspot.com/
TREC: http://www.belizemarinetrec.com/
Belize and Amberguis Caye
Background
Background: Coral reef ecosystems are at risk world-wide from a variety of anthropogenic and natural factors. Many countries have established marine protected areas where human activities such as fishing, tourisms, and harvesting of marine resources are limited. The effectiveness of marine protected areas varies widely, depending on the level of enforcement and protection.
The goal of this research project is to investigate the influence of the Hol Chan Marine Reserve on the fish community.
Our Task for the ProjectLearn the fish of the coral reefLearn to snorkelCollect data on fish numbers
The Grunts – (counted by Ms. Quillen and Mrs. Seman)
QuestionDoes the Hol
Chan Marine Reserve have an effect on the numbers of fish found inside the reserve compared to outside the reserve?
Turtle Rock Island
Our HypothesisHA: There will be greater numbers of grunts
in Hol Chan Marine Reserve as compared to outside the Marine Reserve. (Accepted Hypothesis)
HO: There will be equal numbers of grunts in Hol Chan Marine Reserve as compared to outside the Marine Reserve. (Null Hypothesis)
PlanSwim a normal routeSwim the same way
each timeRecord data for 15
minutesHaphazard sampling2 samples per area Each person counts a
different fishCompare similar areas
Classroom at TREC
PredictionsIf HA is true, then we will see a significant
difference in the amount of grunts counted inside the Marine Reserve and outside the Marine Reserve.
If HO is true, then we will see no significant difference in the amount of grunts counted inside the Marine Reserve and outside the Marine Reserve.
Collecting Data
Channel DataTuffy
Channel
Pescador Channel
1
Pescador
Channel 2
Tres Cocos Chann
el
Hol Chan
Channel 1
Hao Chan
Channel 2
Hol Chan
Channel 3
French Grunts 200 45 8 9 27 85 26Blue
Stripe Grunts
19 80 231 47 273 654 209
Average Outside Reserve
Average Inside Reserve
French Grunts 66 46Blue Stripe
Grunts 94 379
Our Graph
Avera
ge O
utside
Res
erve
Avera
ge In
side
Res
erve
0
100
200
300
400
FrenchBlue Stripe Grunts
Analyze the DataCategorical and Quantifiable
2 means T test
Hypothesis
One Tailed
Predict Direction
Two Tailed
No Direction Difference
Data collection
Paired
Related
Un Paired
Unrealted
T testt-Test: Paired Two Sample for
Means
Variable
1 Variable 2
Mean 80 212.5Variance 392 55444.5
Observations 2 2Pearson Correlation 1
Hypothesized Mean Difference 0df 1
t Stat -0.86885P(T<=t) one-tail 0.272301t Critical one-tail 6.313752P(T<=t) two-tail 0.544602t Critical two-tail 12.7062
ConclusionWe reject HA and accept HO there is no
significant difference in numbers of grunts inside and outside the Marine Reserve.
Our p value is 0.272301To accept HA, p value must be < 0.05
Guide to Statistical Tests
The Coral Reef
Websiteshttp://ms2ecology2012.blogspot.com/http://belizeresearch2012.blogspot.com/ (Ms.
Quillen)http://belizeresearchtrip.blogspot.com/ (Mrs.
Seman)http://ms2belize2012nielsen.blogspot.com/
(Mr.Nielsen)