1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
babymother [125]
3 years ago
7

Aquatic ecologist david strayer of the institute of ecosystem studies and a team of researchers from new york state's department

of ecological conservation (dec) took an in-depth look at populations in the hudson river, which zebra mussels had invaded in 1991. using data from before and after the zebra mussel invasion, strayer and his team observed different trends in plankton and invertebrate populations in the river's open water versus the shallow water in the littoral zone near the shore. there is a scheme representing a riverbank and water near it. in water there is a horizontal line dividing it into open water zone and deep water zone. open water zone area which is closer to the riverbank and where there is no deep water zone is labeled littoral zone. in the open water, zooplankton and invertebrate populations declined by 70% after the zebra mussel invasion. in the littoral zone, bottom-dwelling invertebrate populations increased after the zebra mussel invasion. this was likely due to the mussel shells providing habitat structure and hiding places for these creatures on the river bottom, and also because the feces of zebra mussels enriched the river bottom with nutrients. also, the improved water clarity that results from mussel feeding enables more light to reach the bottom. this promotes the growth of underwater plants, which provide food and shelter for littoral invertebrates. these contrasting trends in the open deep water and the shallows of the littoral zone led strayer's team to propose hypotheses and predictions about fish populations in the hudson. drag the labels to illustrate these steps of the scientific process. labels may be used more than once.
Biology
1 answer:
Sedaia [141]3 years ago
5 0
In communities where zebra mussels have invaded we observed that the population of invertebrates, zooplankton, and phytoplankton they will decrease when in open water. The population of bottom-dwelling invertebrates which are in the littoral zone will increase.
Hypothesis shows the zebra mussels will affect the fish negatively that feed on plankton in the open water but affect positively the fish which feed on invertebrates which are in the littoral zones.
The predictions by following the invasion of zebra muscles show that the number and growth rate of fish species in open water will decrease in population whereas the number and growth rate of fish species in the littoral zone will increase in population.
You might be interested in
Which of these is an exothermic reaction?
stellarik [79]

I think it might be C because when you are rubbing your hands energy is not released it’s absorbed, cooking an egg the heat from the pan is absorbed by the egg, photosynthesis the plant is taking in energy, and in cellular respiration you release energy

6 0
3 years ago
PLEASE HELP FAST!!!
QveST [7]

Answer:

4

Explanation:

Mars Odyssey and Mars Express required spectrometric equipment that could analyze Mars's atmosphere

3 0
3 years ago
Read 2 more answers
How do the products of the reaction relate to the phenol red test and the splint test?​
velikii [3]

Answer:

The answer in this question is show you made Sodium Hydroxide and Hydrogen Gas.

5 0
3 years ago
How do sewers at the bottom of the ocean affect the ocean's ecosystem?
anastassius [24]
It pollutes the oceans waterd and can cause harm to the animals and can affect the the animals population which can make harm to the food chain
8 0
3 years ago
Pleas give me an answer if you actually really know the answer because everybody is giving different answers, pls
Butoxors [25]

Answer:

plants

Explanation:

plants are green

3 0
3 years ago
Read 2 more answers
Other questions:
  • Why are recessive alleles not removed from populations over time?
    5·2 answers
  • Why does an air hockey puck move differently when the air hockey table turned on ?
    11·1 answer
  • Which of these is best when painting a room?
    15·1 answer
  • Students are investigating two steel spheres with the same diameter. One sphere is solid, and the other is hollow. The students
    9·1 answer
  • Plz Answer! Which of the following describes a relationship of commensalism?
    14·2 answers
  • What will happen if a new genotypic character is introduced in a population?
    13·1 answer
  • The United States ranks 50th in the world for maternal mortality and 41st among industrialized nations for infant mortality rate
    11·1 answer
  • Why is good habitat important for animals?
    13·1 answer
  • BRAINLIEST:
    15·2 answers
  • Please helpme on time limit and explain
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!