Sample Aquatic Questions

1. A lake ecosystem is termed “phosphorous limited” if:

a. adding nitrogen to the lake causes increased phytoplankton                                growth
b. adding phosphorus to the lake causes increased phytoplankton                 growth
c. adding nitrogen to the lake causes decreased phytoplankton                          growth
d. adding phosphorus to the lake causes decreased                                          phytoplankton growth
e. adding phosphorus to the lake causes no change in                              phytoplankton growth

2. Pacific salmon (Onchorhyncus spp.) are an example of the                 “anadromy” life history because they do which of the following:

a. fish spend most of their lives in freshwater and then migrate to                          the sea for breeding
b. fish spawn in freshwater but juveniles drift back to the ocean                          where adults spend most of their lives
c. adult female fish die immediately after spawning
d. adults can metamorphose from male to female under high                           density pressures
e. none of the above

3. Which of the following would NOT be considered a benthic                 macroinvertebrate organism?

a. Diatom
b. Decapod
c. Gastropod
d. Ephemeroptera
e. Bivalvia

4.        The water in jar “A” was collected from the surface of a                         mesotrophic system; the water in jar “B” was collected from the     surface of a eutrophic system.   What physical parameter should     show the greatest difference between these two water samples?

a. Temperature
b. Dissolved oxygen concentration
c. Turbulence
d. Turbidity
e. Salinity

5. Identify the creature making this call by listening to the tape.

a. Wood frog
b. Pickerel frog
c. Spring peeper
d. Green frog

6. If a New York state stream contains a wild trout population then a   permit is required to construct a road crossing it.  Which of the   following agencies would issue the needed permit?

a. United States Fish and Wildlife Service
b. Soil and Water Conservation District
c. New York State Department of Environmental Conservation
d. United States Environmental Protection Agency
e. New York State Department of Transportation

7. Because they produce so much plant biomass and invertebrate                life, estuaries and their coastal marshes serve as important                nursery areas for the young of many game (recreational) and              commercial fish and shellfish.  Which of the following fish                    species is dependent upon coastal wetlands?

a. Brown trout
b. Atlantic chad
c. Northern pike
d. Flounder

8. One of the main functions of a healthy watershed is the                         temporarily storage and transportation of water from the land                     surface to the water body. Over time, streams develop into                   defined drainage networks. Which of the following is not a                   recognized drainage pattern?

a. Parallel 
b. Spiral
c. Angular
d. Dendritic

Aquatic Ecology Questions
2014 New York State Envirothon 
May 21 & 22, 2014
Morrisville State College
Morrisville, NY 
NEWS

New York State Envirothon
Aquatic Ecology Resources
Sample Questions

Learn about terms relating to the study of aquatics
Learning Objectives

Learning goals for participating students
Outline

Basic outline for aquatics topics covered at this event 
References

Links and references to more information on the study of aquatics