Coastal Habitats Oregon Coast Field Trip Animals of the Benthos ◆ 98% of marine species are benthic ◆ Hydrothermal vents ◆ Coral reefs ◆ Rocky shore ◆ Sandy shore ◆ Oregon info at the Oregon Coastal Atlas – www.coastalatlas.net Oregon Coast Field Trip - Sat., May 21 st 2011 dusk.geo.orst.edu/oceans/field.html dusk.geo.orst.edu/oceans/field.html ◆ Be here by 7:15 a.m. Be here by 7:15 a.m. ◆ 7:30 - Busses 7:30 - Busses leave leave from from Wilkinson lot Wilkinson lot ◆ 10:00 - Seal Rock 10:00 - Seal Rock volcanic rocks and tide volcanic rocks and tide pools pools ◆ 11:30 - Lunch at Seal 11:30 - Lunch at Seal Rock Rock (bring your own; eat lunch in busses if weather is bad) ◆ 12 noon - Travel to 12 noon - Travel to HMSC HMSC ◆ 12:30 - HMSC Visitor 12:30 - HMSC Visitor Center Center ◆ 2:00 2:00 ish ish - Return to - Return to Corvallis Corvallis ◆ Back by ~4:30 p.m. Back by ~4:30 p.m. Exploring the Tide Pools (and associated geology) ◆ Shoes with good tread/grip ◆ Extra socks ◆ Rubber boots, if you have them ◆ Pillow/stuffed animal ◆ Take your field trip guide with you! ◆ Be prepared with questions!!! Required Field Trip Guide dusk.geo.orst.edu/oceans/field.html ◆ Answers to bolded questions in guide – Turn assignment in to your TA – Due by 5:00 p.m., June 3rd – This constitutes LAB 9 Rocky Shores ◆ spray zone – mostly dry, covered by water only during storms ◆ high tide zone – fairly dry, covered only by the highest high tide ◆ middle tide zone – equally exposed & covered during all high & low tides ◆ low tide zone – mostly wet The Rocky Shore Oregon Rocky Shore Spray Zone: periwinkle snails boundary between spray & intertidal rock louse & sea roaches scavenge organic debris High Tide Zone: filter-feed seawater / larvae are planktonic limpets, buckshot barnacles [...]... plants than by animals algaes, sea urchins, sea anemones Oregon Algaes - Fachea Oregon Algaes - Hallosaccion Oregon Algaes - Mazzaella Oregon Algaes - Postelsia Oregon Sea Urchins Oregon Anemone - Anthopleura Oregon Anemone - Corynactis Shore Crabs roam entire intertidal range Scavengers feeding on dead animals, seaweed Oregon Crab - Pugettia Animals of the Rocky Shores x spray zone – mostly dry, covered... sea anemones Sandy Shores x no fixed surface to attach to x different adaptations protect animals from fluctuations in – temperature – salinity – water levels (so as not to dry out) x clams, worms, sand stars, amphipods Clams Worms, Amphipods, Sand Stars Feeders on Sandy Shores x Clams – suspension feeding x Worms – deposit feeding by ingestion x Amphipods – deposit feeding on surface x Sand stars –... Clams – suspension feeding x Worms – deposit feeding by ingestion x Amphipods – deposit feeding on surface x Sand stars – carnivorous feeding on unlucky neighbors Important Web Sites x Field Trip Page and Guide – dusk.geo.orst.edu/oceans/field.html – dusk.geo.orst.edu/oceans/OC103FieldTri p.pdf x Oregon Coastal Atlas – www.coastalatlas.net x HMSC Summer Experiences – hmsc.oregonstate.edu/summer.html . a.m. ◆ 7:30 - Busses 7:30 - Busses leave leave from from Wilkinson lot Wilkinson lot ◆ 10:00 - Seal Rock 10:00 - Seal Rock volcanic rocks and tide volcanic rocks and tide pools pools ◆ 11:30 -. Seal 11:30 - Lunch at Seal Rock Rock (bring your own; eat lunch in busses if weather is bad) ◆ 12 noon - Travel to 12 noon - Travel to HMSC HMSC ◆ 12:30 - HMSC Visitor 12:30 - HMSC Visitor. Visitor Center Center ◆ 2:00 2:00 ish ish - Return to - Return to Corvallis Corvallis ◆ Back by ~4:30 p.m. Back by ~4:30 p.m. Exploring the Tide Pools (and associated geology) ◆ Shoes with good