Food Web - How to Make

THE EXPOSED SAND BEACH ECOSYSTEM FOOD WEB . . .AND HOW TO MAKE ONE PERRY’S CLASS - MALIBU HIGH

TIME TO TAKE NOTES !

IN SHALLOW WATER THERE ARE TWO ECOSYSTEMS:

IN SHALLOW WATER THERE ARE TWO ECOSYSTEMS: 1.ONE BASED ON PHYTOPLANKTON.

IN SHALLOW WATER THERE ARE TWO ECOSYSTEMS: 1.ONE BASED ON PHYTOPLANKTON. 2.ANOTHER BASED ON BENTHIC PLANTS. REMINDER: (MACROPHYTES. ALL SEAWEEDS (MACROPHYTES) FOUND DURING SEAWEEDS.) OUR RESEARCH DO NOT LIVE/GROW AT ZUMA BEACH, BUT THEY DO WASH ASHORE FROM OTHER (ROCKY SUBSTRATE) LOCATIONS.

WHERE SUNLIGHT HITS THE SEA FLOOR 3,795m is the average depth of the ocean

THIS IS THE ONLY REGION WITH DUAL ECOSYSTEMS

YOUR RESEARCH WAS LOCATED HERE !

Let’s look at a marine food web diagram that shows both ecosystems side-by-side.

How do your Zuma organisms fit on this food web ?

How do your Zuma organisms fit on this food web ?

Here’s how to do it . . .

First, fill in the PHYTOPLANKTONBASED ECOSYSTEM side of the food web.

PHYTOPLANKTON

DECOMPOSERS

COPY & Paste the names of all the phytoplankton species here.

PHYTOPLANKTON

DECOMPOSERS ZOOPLANKTON

COPY & Paste the names of all the zooplankton species here.

PHYTOPLANKTON

DECOMPOSERS ZOOPLANKTON

SUSPENSION FEEDERS

C & P the names of all the suspension feeders here.

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE SUSPENSION FEEDERS ?

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE SUSPENSION FEEDERS ?

Suspension feeders, or “filter feeders,” pump, strain, filter or otherwise collect plankton and particles of detritus from water.

Emerita, barnacles, mussels, clams, scallops, jewel boxes, $and dollar$ are suspension feeders.

Barnacles

mussels

clams

Bivalve mollusks

Emerita analoga

PHYTOPLANKTON

DECOMPOSERS ZOOPLANKTON

C & P the names of all the carnivore species here.

SUSPENSION FEEDERS

CARNIVORES

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE CARNIVORES ?

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE CARNIVORES ?

All birds All fish.

All mammals.

Animals that sting or have jaws, teeth, fangs and are quick and smart are carnivorous. (Diopatra; Conus) All Cnidarians..

Blepharipoda !

All mammals.

Next, fill in the BENTHIC PLANTBASED ECOSYSTEM side of the food web.

PHYTOPLANKTON

BENTHIC PLANTS

DECOMPOSERS

C & P the names of all the BENTHIC PLANT species here.

SUSPENSION FEEDERS

CARNIVORES

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE BENTHIC PLANTS ?

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE BENTHIC PLANTS ?

Benthic plants do not grow in sandy environments like Zuma Beach, but they enter our food web as debris washed in from neighboring shores.

Zostera

Ulva Macrocystis

PHYTOPLANKTON

BENTHIC PLANTS

DECOMPOSERS

C & P the names of all the BENTHIC HERBIVORE species here.

SUSPENSION FEEDERS

CARNIVORES

BENTHIC HERBIVORES

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE BENTHIC HERBIVORES ?

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE BENTHIC HERBIVORES ?

Wherever you find benthic plants you’ll find benthic herbivores. They’re slow, not too smart, and must eat constantly so they stay close to plants.

Many snail-like molluscs use their radula to scrape and eat seaweed.

RADULA

PHYTOPLANKTON

BENTHIC PLANTS

DECOMPOSERS

C & P the names of all the SCAVENGER species here.

SUSPENSION FEEDERS

BENTHIC HERBIVORES

SCAVENGERS

CARNIVORES

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE SCAVENGERS ?

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE SCAVENGERS ?

Scavengers are opportunistic feeders that will eat sessile animals, dead or injured animals, as well as plant materials. They take advantage of opportunities as they happen.

At Zuma Beach 3 birds are scavengers: Larus occidentalis Larus delawarensis juvenile Larus

PHYTOPLANKTON

BENTHIC PLANTS

Last, put the DECOMPOSERS DETRITAL FEEDER species here, if any.

ZOOPLANKTON

SUSPENSION FEEDERS

DETRITAL FEEDERS

CARNIVORES

BENTHIC HERBIVORES

SCAVENGERS

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE DETRITAL FEEDERS ?

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE DETRITAL FEEDERS ?

What is DETRITUS ?

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE DETRITAL FEEDERS ?

What is DETRITUS ?

Detritus in the ocean is made up of bits and pieces of decomposing plants, animals and their waste products. They are coated with bacteria and fungi, and represent a source of energy and materials for detrital feeders.

HOW CAN YOU TELL WHICH ZUMA SPECIES ARE DETRITAL FEEDERS ?

sea cucumber

Brittle star

Amphipod

As particles of detritus sink down to the ocean floor, a variety of slow moving “vacuum cleaner” animals feed on it.

Sea cucumbers, brittle stars and tiny benthic crustaceans such as amphipods and isopods feed on detritus.

PHYTOPLANKTON

BENTHIC PLANTS

DECOMPOSERS ZOOPLANKTON

SUSPENSION FEEDERS

BENTHIC HERBIVORES

DETRITAL FEEDERS

CARNIVORES

SCAVENGERS

How do your word-process the names of organisms to fit on this food web ?

Here’s how to do it . . .

COPY AND PASTE SCIENTIFIC NAMES FROM THE MASTER LIST ON TO YOUR FOOD WEB.

EXAMPLE Next page

Begin in the upper left corner MAKE 2 or 3 TEXT BOXES (USING THE DRAWING TOOLS) Then, copy ‘n’ paste all the species of phytoplankton you have seen.

Add the rest of the categories and species you have seen.

Use the drawing tool to add boxes around each category.

Finish your food web by adding your arrows.