HELP ON ECOLOGY LAB REPORT PLEASE!!! - The AIM of this lab exercise: Does Easter
ID: 3075021 • Letter: H
Question
HELP ON ECOLOGY LAB REPORT PLEASE!!!
- The AIM of this lab exercise: Does Eastern Mosquitofish (Gambusia holbrooki) population structure differ with season?
- You will compare population structure in an FIU pond from February 2018 (previous semester) with the data that you collect this semester (September 2018).
1- The imortance of this experiment
2- Backgrounf info leading to the knowledge gap/problem
3- What differ between seasons that might affect fish populations
4- Backgroung on gambusia holbrooki reproduction and population structure
5- State your research objectives and biological hypotheses
3 references
FEBRUARY 2018 CURRENT RESULTS
Age Weighted Fecundity 1(x)*b(x)*x
14.673 Offspring
0.024 Ind/ Days
Optimal Age for Sexual Maturity
SEPTEMBER 2018 RESULTS:
Age Class (days)x Sample/ Age
s(x) Number/ Age
n(x) Survival Rate
1(x) Fecundity b(x) Offspring/Ind 1(x)*b(x)
Age Weighted Fecundity 1(x)*b(x)*x
0 24 120 1 0 0 0 30 39 96 0.8 0 0 0 60 19 57 0.475 0 0 0 90 21 38 0.317 24 7.608 684.72 120 8 17 0.142 27 3.834 460.08 150 5 9 0.075 29 2.175 326.25 180 2 4 0.033 32 1.056 190.08 210 0 2 0.017 0 0 0 240 1 2 0.017 0 0 0 Sum 120 R014.673 Offspring
G 113.209 Days r0.024 Ind/ Days
Optimal Age for Sexual Maturity
120 DaysExplanation / Answer
Solution:
1. This investigation comprehends the populace elements of Gambusia holbrooki amid two unique occasions of a year.in a FIU lake. It will give a superior comprehension of the variables influencing the populace elements of eastern mosquitofish.
2. Gambusia holbrooki, otherwise called the eastern mosquitofish has been presented in the water bodies worldwide to control mosquitoes rearing and in this manner, mosquito-borne illnesses, for example, jungle fever, be that as it may, it is currently known to diminish amphibian biodiversity (Milton and Arthington; 1983) by devouring the hatchlings of other oceanic living beings (Meffe et al., 1983) and by implication increment the mosquito populace (Blaustein and Karban; 1990). There is broad research on the impacts of Gambusia holbrooki on the biological community, in any case, little is thought about their populace and regenerative examples in different seasons.
3. Two critical variables that may that influence the fish populace in the two seasons are photoperiod and temperature of the water. Photoperiod and temperature are bring down in February because of winters while higher in September. Lesser photoperiod and temperature presumably prompt lower survival rates and posterity generation in February as is obvious from the information gathered.
4. Gambusia holbrooki are viviparous and have an internal reproduction. The male mosquito fish ejaculates sperm into the female genital aperture where the fertilization occurs zygote remains in the ovary for gestation as the fish lacks a uterus. mosquito fish can store sperms from more than one male fish, which can later fertilize with more ova to produce zygotes. Baby mosquitofish of length 8 to 10mm are reproduced at the end of the gestation period. They are mainly found in stagnant or slow-flowing water of shallow ponds or lakes with a temperature of about 31 to 35 degree Celcius.
5. Research Objective - To think about the distinction in the populace structure of Eastern Mosquitofish (Gambusia holbrooki) in various seasons.
Natural speculation - The regenerative cycle and the populace structure of Gambusia holbrooki is needy upon photoperiod and temperature of the water in which they live.
References
Blaustein, L. what's more, Karban, R. 1990. Circuitous impacts of mosquitofish Gambusia on mosquito Culex tarsalis, Limnology and Oceanography.
Meffe G.K., Offspring size variety in mosquitofish ( Gambusia holbrooki) from differentiating warm conditions, Copeia 1990
Milton, D.A. furthermore, A.H. Arthington 1983. Regenerative Biology of Gambusia, Journal of Fish Biology.
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