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Lab

fiheries lab report

Fisheries
and

Aquatic Ecology
FWCE 110

College of ACES
Department of Fish, Wildlife, and
Conservation Ecology

Learning Objectives

REINFORCE USE OF
WATER QUALITY

PARAMETERS
LEARNED AT THE

BEGINNING OF THE
SEMESTER AND

LEARN HOW THESE
PARAMETERS

RELATE TO FISH
POPULATIONS.

UNDERSTAND WHAT
A SHANNON-WIENER
DIVERSITY INDEX IS

AND IDENTIFY
FACTORS THAT

CONTRIBUTE TO THIS
INDEX, INCLUDING
SPECIES RICHNESS

AND SPECIES
EVENNESS.

INTERPRET THE
SHANNON-WIENER

DIVERSITY INDEX AND
UNDERSTAND WHY IT
IS A VALUABLE TOOL

IN ECOLOGICAL
STUDIES.

LEARN SAMPLING
METHODS TO

COLLECT FISH AND

IDENTIFY SOME
COMMON MINNOW

SPECIES.

Fisheries Management

• A fishery can refer to an occupation, industry, or even
a season for catching fish, or where fish are caught.
• Commercial – catching and marketing fish and shellfish for

profit.

• Recreational – fishing for sport or pleasure.

• Subsistence – fishing for personal, family, and community
consumption or sharing.

NOAA (2020)

Fisheries Management

• We manage U.S. fisheries to:
• Sustain, protect, and increase domestic seafood supply.

• Maintain and enhance recreational and subsistence
fishing opportunities.

• Protect ecosystem health and sustainability.

• Create jobs, support related economic and social
benefits, and sustain community resilience.

*Like wildlife management, we need to make sure that fish populations stay
above a certain level and keep harvest rates at a level that allows the fish to

produce maximum sustainable yield.

NOAA (2020)

Fisheries Management
• Habitat loss, fragmentation, and degradation are

some of the primary factors in the decline of both
native and non-native species. Various sources of
pollution are also worsening water quality and
habitat.

• National Conservation Strategies
• National Fish Passage Program
• Fish and Wildlife Conservation Offices
• National Fish Habitat Partnership
• Sikes Act

USFWS (2020)

The ‘salmon cannon’ that shoots fish over a dam by Whooshh innovations –
YouTube

Connecting Fish Habitat: Barriers that Prevent Fish Passage

Assessing a
Healthy Fishery

• Survival estimates

• Abundance estimates

• Age-growth estimates

• Species Diversity

Sampling Methods

• Gee or Minnow Traps

• Gill Nets

• Hoop Nets

• Seine Nets

• Electroshocking

• Enclosure Traps

• Visual Observations

Depends on
your

species of
interest!

C. B. Portt, G. A. Coker, D. L. Ming, & R. G. Randall (2006)

Minnow
Species of

NM

New Mexico Game & Fish, 2020

Lab Report

• Collected habitat data from Knox Pond

• Collected fish and identified species for
each location

• Data for the Mesilla Valley Bosque Park
Pond is provided for comparison

• Calculate Shannon Diversity Index in
Excel

• Draw conclusions!

Parameters of
Interest
• Water Temperature

• Secchi Depth

• pH

• Salinity

• Shannon-Wiener Diversity
Index

Species Diversity
• Variation of species in a particular region

• Richness – Total number of individuals

• Evenness – number of different species

• Dominance – Most abundance species present

Species Diversity

• Shannon Diversity Index
(H) is an index used to
characterize species
diversity in a community.

• It accounts for both
abundance and evenness
of the species present.

M. Beals, L. Gross, & S. Harrell (2000)

Higher values of “H”
represent more diverse

communities

Species Diversity

H2 = 0.56

H1 = 1.36

Higher values of “H”
represent more diverse

communities

Keywords for
Literature Search

• Fisheries Management
• Fisheries Conservation
• Diversity Index
• Shannon-Wiener Diversity Index
• Species Richness
• Species Evenness
• Species Diversity
• Fish community
• Minnow Diversity

Literature Search Tips

• Mendeley – mendeley.com

• Connected Papers – connectedpapers.com

• Paper Pile – paperpile.com

• Researcher – researcher-app.com

• Request access from author directly!

Questions?

Looking Forward

TODAY

• Work through Shannon
Diversity Index in Excel

• Fisheries Lab Report
• Due week of Nov. 11th

COMING UP

• Next week –
• Computer lab

  • Slide 1: Fisheries and Aquatic Ecology
  • Slide 2: Learning Objectives
  • Slide 3: Fisheries Management
  • Slide 4: Fisheries Management
  • Slide 5: Fisheries Management
  • Slide 6: Assessing a Healthy Fishery
  • Slide 7: Sampling Methods
  • Slide 8: Minnow Species of NM
  • Slide 9: Lab Report
  • Slide 10: Parameters of Interest
  • Slide 11: Species Diversity
  • Slide 12
  • Slide 13: Species Diversity
  • Slide 14: Species Diversity
  • Slide 15: Keywords for Literature Search
  • Slide 16: Literature Search Tips
  • Slide 17: Questions?
  • Slide 18: Looking Forward

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