Living in the tide pools
With supplemental tour of
horticulture
Outline of the day
1. Turn in your lab reports at the front
–
More than 10 minutes late = bad
Any questions on last week’s lab?
Quiz
Introduction to the lab
Lab!
Check out
2.
3.
4.
5.
6.
•
•
Get a stamp
Make sure I mark you down for attendance
Quiz
• Ends 8 minutes after it’s started
– Ends at: ____
Lab this week!
• Preparing for our tidepool trip
– Where we’re going
– What we’re going to do while there
• Applying what we learned last week to real
plants
– A tour of horticulture!
– Today’s worksheet is based on this part
The intertidal
zone
• Area where land
meets sea
• Can be rocky or
sandy
– Rocky is typically
more diverse
What causes the tides?
• The relative position of the sun and
moon
• Moon affects tides on a daily basis
– Pulls on ocean water as it moves around
the earth
• Sun has less of an influence; seen more
seasonally
– When moon and sun line up, tides are
larger than normal (spring tides)
– When moon and sun counter each other,
tides are lower than normal (neap tides)
Variation in tides seasonally
• Spring tides
– Tides are larger than average
– Sun and moon lined up
• Neap tides
– Tides are larger than average
– Sun and moon counter each other
PD images from: http://en.wikipedia.org/wiki/Image:Spingtide.jpg & http://en.wikipedia.org/wiki/Image:Neaptide.jpg
There are many “zones” on the
shore
• Subtidal – Never exposed to air due to
tides.
• Low littoral (Low intertidal) – Infrequently
exposed to air at low tides
• Mid littoral (Mid intertidal) – Exposed to
water and air relatively frequently
• Upper littoral (High intertidal) – Infrequently
covered by the tides
• Spray zone – Never covered by the tides
Meeting site information
• Tide pools at Dana Point, near the Ocean
Institute
– Saturday May 5 8:30 am – 11:30
– Sunday May 6 9:00 am – 12:00 noon
– You need to be there for ~1.5 hours in that time
• See the handout for more information
– Wear appropriate field clothing
• Shoes/boots/sandals w/heel straps (e..g Tevas)
• Highs ~65F; may be cloudy and/or windy
– Bring supplies
• Water, sunscreen, snacks, etc.
– While there
• BE CAREFUL
– Watch the waves
– Watch your footing
What you’re going to do
• Before you go
– Choose 5 organisms to look at
• See the photo guide for help with this
• Do a bit of research into what they look like, what they do,
etc.
• When you’re there
– Spend 15 minutes observing each of your five
organisms
• Pick one area to look at and note how many are there,
summarize the behavior of the organism, describe the
environmental surroundings, and its adaptations to the
environment
• After you’re there
– Write up a formal report
• Turn this in next week
– Follow the instructions in the manual
Participation form
• Before attending the trip you need to sign
a waiver
– Let’s do that now!
Any questions on the field trip?
Plant diversity!
• Last week we looked at a few plant
specimens in lab
– But we didn’t really see all that much …
• So today we’re going to go outside and
look at real plants
• Complete the worksheet as we tour the
campus
Before you leave
• Clean up your work area
• Show me your lab report so I can stamp it
– Need to have all data fields filled in
– Complete at home and then turn in at the beginning of
next lab
• Remember that we’ll have a quiz at the
beginning of the next class
– 6-7 questions on today’s lab
– 3-4 questions on the lab we’ll do next week
Notes for the instructor:
• I distributed a handout of photographs of common intertidal
organisms, and let the students keep these for the trip. Contact me
if you’re interested in this handout (it consists solely of pictures I’ve
taken at Crystal Cove, so it’s completely distributable).
• As my students seemed to have great difficulty understanding the
plant reproductive biology introduced in the reproduction lab, I
replaced part of this lab with a tour of horticulture. I created my own
handout for this, which focused on comparing the anatomy and
reproductive physiology of the four major types of plants (nonvascular, vascular non-seed-producing, etc.). Contact me if you’re
interested in seeing this handout.
• Add any relevant cleanup instructions to the final slide (that slide is a
generic one I’m adding to each presentation).
• Change the meeting site information as appropriate.
License information
• This work is licensed under the Creative Commons AttributionNonCommercial-ShareAlike 3.0 License. To view a copy of this
license, visit http://creativecommons.org/licenses/by-ncsa/3.0/us/ or send a letter to Creative Commons, 171 Second
Street, Suite 300, San Francisco, California, 94105, USA.
• The slides in this presentation were originally created by Marc
C. Perkins (http://faculty.orangecoastcollege.edu/mperkins).
• You are free to use, modify, and distribute these slides
according to the terms of the Creative Commons license (e.g.,
you must attribute the slides, no commercial uses are allowed,
and future distributions must be licensed under a similar
license).
• Attribution should be given to Marc C. Perkins (and any later
editors), including a link back to Marc’s current website. This
applies both while distributing the slides and during use of the
slides; attribution during use can be satisfied by, for instance,
placing small text on at least one of the slides that has been
shown (see below for an example).
History
• August 2007: Marc Perkins released first
version.
http://faculty.orangecoastcollege.edu/mperkins
(If you modify these slides and redistribute them, add your information to the list)