Title: Lab 4-- Identification: Petromyzontiformes to Osteoglossiformes
1Lab 4-- IdentificationPetromyzontiformes to
Osteoglossiformes
Chestnut lamprey (Icthyomyzon castaneus)
Mooneye (Hiodon tergisus)
2Wisconsin Fishes
3Bad River
Menominee River
St. Croix River
Chippewa River
Wisconsin River
Wolf River
Fox River
Black River
Lake Winnebago
Wisconsin River
Mississippi River
Rock River
4Petromyzontiformes - Petromyzontidae
- 41 species worldwide, 6 species found in
Wisconsin - Sometimes parasitic
- The sea lamprey contributed to the collapse of
the Great Lakes lake trout fishery
5Petromyzontiformes - Petromyzontidae
- Sea lamprey
- Petromyzon marinus
American brook lamprey Lampetra appendix
Chestnut lamprey Ichthyomyzon castaneus
6WI DNR Wisconsin Aquatic Gap Mapping Application
http//web2.er.usgs.gov/wdnrfish/
American brook lamprey
Sea lamprey
Chestnut lamprey
7Acipenseriformes - Acipenseridae
- 23 species worldwide, 2 found in Wisconsin
- Most species are endangered
- Beluga sturgeon (Huso huso)
- Feed on benthic invertebrates
- Sought after gamefish
White sturgeon (Acipenser transmontanus) dont
have to know
8Sturgeons (Acipenseridae)
- Lake sturgeon
- Acipenser fulvescens
Shovelnose sturgeon Scaphirhynchus platorynchus
9WI DNR Wisconsin Aquatic Gap Mapping Application
http//web2.er.usgs.gov/wdnrfish/
Lake sturgeon
Shovelnose sturgeon
10Acipenseriformes - Polyodontidae
- 2 species worldwide
- A living plankton net
- Are listed as Threatened
- Found only in Mississippi and Wisconsin rivers
Paddlefish (Polyodon spathula)
11WI DNR Wisconsin Aquatic Gap Mapping Application
http//web2.er.usgs.gov/wdnrfish/
Paddlefish
12Lepisosteiformes - Lepisosteidae
- Only 7 species worldwide, 2 found in Wisconsin
- Piscivorous
Longnose gar (Lepistosteus osseus)
Shortnose gar (Lepistosteus platostomus)
13WI DNR Wisconsin Aquatic Gap Mapping Application
http//web2.er.usgs.gov/wdnrfish/
Longnose gar
Shortnose gar
14Amiiformes - Amiidae
- Only 1 extant species (Amia calva)
- Cycloid scales
- Voracious predators
- Fairly widespread
Bowfin (Amia calva)
15WI DNR Wisconsin Aquatic Gap Mapping Application
http//web2.er.usgs.gov/wdnrfish/
Bowfin
16Clupeiformes - Clupeidae
- 330 species worldwide, 3 found in Wisconsin
- Most are marine
Alewife (Alosa pseudoharengus)
Gizzard shad (Dorosoma cepedianum)
17WI DNR Wisconsin Aquatic Gap Mapping Application
http//web2.er.usgs.gov/wdnrfish/
Alewife
Gizzard shad
18Anguilliformes - Anguillidae
- Approximately 622 species, mostly marine
- Only 1 species in Wisconsin (Anguilla rostrata)
American Eel (Anguilla rostrata)
19(No Transcript)
20WI DNR Wisconsin Aquatic Gap Mapping Application
http//web2.er.usgs.gov/wdnrfish/
American eel
21Osteoglossiformes - Hiodontidae
- Only representatives of Osteoglossiformes in
Wisconsin
Mooneye (Hiodon tergisus)
22WI DNR Wisconsin Aquatic Gap Mapping Application
http//web2.er.usgs.gov/wdnrfish/
Mooneye
23Geographic Distributions
- Mississippi River supports all the native
primitive fishes - Most primitive fishes are primarily found in
large bodies of waterwhy?
24Why in the do we have to do all this writing
in our fishes course?
- Get lots of instruction on writingnot as much on
scientific writing, what is the difference? - Importance of being able to express your
thoughts, regardless of what career you choose - Research techniques are universal
- If you go on in science, it is the only currency
that matters?.......what do I mean by that?
25Peer Review?
- Criticism is importantconstructive criticism
is best! - Two types Internal and External. Point of
internal review is to make external review go
well - When you are reviewing someone elses work think
how you would want to be reviewed..You want to
do the best job you canbut you dont want to be
yelled at to do it! - You are going to do this for each other
26The paper process
- Observation or idea
- It looks like every time we catch white suckers,
we are sampling in a deeper portion of the
stream? - I wonder if the biomass of non-trout species is
related to the biomass of trout species? - Develop Hypothesis
- It looks like every time we catch white suckers,
we are sampling in a deeper portion of the
stream? - I wonder if the biomass of non-trout species is
related to the biomass of trout species? - Hit the literature
- What does everyone else have to say about this?
27Where do you find information
- Web, Google and Google Scholar
- Online Databases
- Biological Abstracts
- ISI Web of Science
28Hypothesis Testing
- An educated guess or prediction about an
experiment, behavior, outcome, relationship etc. - Statistical Terms
- The null hypothesis (H0)
- fish growth 1 fish growth 2
- The alternative hypothesis (H1)
- fish growth 1 ? fish growth 2
29Structure of a scientific paper
- Title
- Abstract
- Introduction
- Methods study site, data analyses
- Results graphs, tables analyses
- Discussion
- Literature Cited
30Order you write a scientific paper
- Results start with a picture, tell your story
- Discussion whats cool about your story, also
relative to what other people found - Methods what did you do to get your results
- Introduction background on what you found
- Abstract just the highlights
- Title make it work for your story
- Literature Cited
31Style
- Use active voice
- We calculated fish condition (active)
- Fish condition was calculated (passive)
- OK to write in the first person tense
- I hypothesized that water temperature would
affect fish activity. - We measured fish abundance in a 50 m reach.
32Citing References
Jaw opening velocity and depression of the lower
jaw both decrease when largemouth bass are fed
to satiation (Sass and Motta, 2002). According
to Roth and Kitchell (2002), selective
predation by fishes is not the sole mechanism
leading to the extirpation of native orconectid
crayfishes in northern Wisconsin lakes. Note
When referencing prior work, all verbs should be
in the present tense because you are quoting
established knowledge
33More writing techniques