CEDO

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• Course Announcements
• Exam 1 rescheduled for Feb 23rd
• Article review due today after lecture, in lab
  next time
• Corrected article review - no lab next week,
  arrange to get
• from TA on Monday, or get in lecture on Feb 16th.
• Clay boat homework handed back after class today
  (5 pts)

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• Field trip announcements
• Today is deadline to tell us if you are going on
  ft
• Revised alternative assignment posted on webpage
• Handouts for field trip will be posted on webpage
• Meet on South side of Biological Sciences East by
  1230
• on Friday to leave at 100 pm.
• Carry ID (passport or birth certificate) with
  you, not in luggage.

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CEDO
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Fin whale and parking
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CEDO Beach
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View of CEDO from Estero Morua
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Estero (a negative estuary)
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Halophytes (Salt-loving plants)
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Station Beach
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Group project - sampling after tidewalk
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Acorn barnacle
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Angelic tooth snail
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Ringed brittle star
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Heliaster, the sunstar, crash in 1978, now
returning
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Heliaster kubinijii Endemic to Gulf of
California Lives in intertidal zone Keystone
predator on the reef Pre-1978 one individual/m2
on the reef keystone predator top predator
that eats many other species 1978 population
crashed extremely rare for almost 20 yrs still
not common
endemic where originated and currently found
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Pencil urchin
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Giant black brittle star
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Purple urchin
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Purple urchin
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Mussel
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Breadcrumb sponge (Porifera)
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Intertidal stories

• Breadcrumb sponge (Leucetta losangelensis)
• Isopod crabs live inside sponge chambers
• Males guard harems of females
• Males come in three morphs - alpha, beta, gamma

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Black chiton
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clingfish
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Sea cucumber
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Fireworms
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Golfball sponge
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Swimming clam
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Tube worm
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tunicate
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Sonora goby
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bryozoan
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Branched corraline algae
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Burrowing anemone
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Sandy sea cucumber
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Octopus digueti (sandy shore octopus)
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Small red octopus (Octopus fitchii)
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Orange bryozoan and white tunicate
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Zoned fan algae (Padina sp), a brown algae
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A solitary tunicate (one individual rather than a
colony)
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A colonial tunicate (many individuals in one
tunic)
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Tube snail (Mollusca)
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Turret snail (Turritella sp)
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Vaquita, the harbor porpoise, Phocoena
sinus smallest and most endangered cetacean
(whales, dolphins, porpoises) endemic to (lives
only in) Northern Gulf of California Size 120
lbs (55 kg), less than 5 feet long (1.5m) Color
gray back, pale belly,dark eye ring and lips in
adults, babies uniformly grayShape relatively
tall dorsal fin and long pectoral fins for a
porpoiseBehavior alone or small groups (2, 4,
or 10 max). Shy.
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Vaquita, the harbor porpoise, Phocoena
sinus smallest and most endangered cetacean
(whales, dolphins, porpoises) endemic to (lives
only in) Northern Gulf of California Size 120
lbs (55 kg), less than 5 feet long (1.5m) Color
gray back, pale belly,dark eye ring and lips in
adults, babies uniformly grayShape relatively
tall dorsal fin and long pectoral fins for a
porpoiseBehavior alone or small groups (2, 4,
or 10 max). Shy.
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Vaquita

• WWF-Mexico proposes the following milestone to
  save the vaquita
• By 2009, bycatch of vaquita in the Gulf of
  California be reduced
• to no more than one animal per year. To achieve
  this, they suggest
• a wildlife refuge covering the distribution area
  of the vaquita that falls
• outside of the Upper Gulf of California Biosphere
  Reserve.
• Eliminate the use of gillnets and shrimp trawls
  in vaquita habitat
• Make progress on alternative gears and other
  sustainable
• economic alternatives for local fishermen and
  communities

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