MPA Model Template by Nathalie Bravo

Modeling Question:

416030_1 — 2024-02-22 17:21:42 UTC

What affects the fish populations in the Crystal Cove State Marine Conservation Area?

Legend

416030_1 — 2024-02-22 17:21:42 UTC

Biotic Components - GREEN
Abiotic Components - BLUE
Processes - RED
Relationships - PURPLE
Questions and Comments - WHITE

Fish population

416030_1 — 2024-02-23 00:58:17 UTC

Fishermen

416030_1 — 2024-02-23 01:16:47 UTC

416030_1 — 2024-02-23 01:32:45 UTC

An increase of fishermen causes the fish population to decrease in the Crystal Cove MPA because they tend to overfish.

Ocean acidification

416030_1 — 2024-02-23 01:40:24 UTC

416030_1 — 2024-02-23 02:10:36 UTC

An increase in ocean acidification causes the fish population to decrease, it results in higher vulnerability to predators.

Upwelling

416030_1 — 2024-02-23 02:38:50 UTC

416030_1 — 2024-02-23 02:44:44 UTC

An increase of upwelling causes fish population to decrease because in areas where upwelling occurs, the surface water that is moving away from the shore can take surface organisms with it.

Ocean temperature

416030_1 — 2024-02-23 02:52:03 UTC

416030_1 — 2024-02-23 03:01:30 UTC

Ocean temperature affects the fish population because as water warms up, the fish requires more oxygen to function because warm water contains less oxygen than cold water.

Urban runoff

416030_1 — 2024-02-23 03:08:01 UTC

416030_1 — 2024-02-23 03:11:36 UTC

An increase of urban runoff causes the fish population to decrease because pollutants in storm water runoff can negatively impact the development of aquatic life.

Wind

416030_1 — 2024-02-23 03:14:09 UTC

416030_1 — 2024-02-23 03:18:24 UTC

The increase of wind affects the fish population because it creates currents in the water that can move big groups of fish.

Predators

416030_1 — 2024-02-23 03:19:29 UTC

416030_1 — 2024-02-23 03:23:49 UTC

Predators cause the fish population to decrease because the fish are their prey so they are often being eaten.

Salinity

416030_1 — 2024-02-23 03:30:34 UTC

416030_1 — 2024-02-23 03:32:59 UTC

The salinity of the ocean causes the fish population to decrease because most fish species egg fertilization and incubation depend on salinity.

Kelp

416030_1 — 2024-02-23 03:40:32 UTC

416030_1 — 2024-02-23 03:48:21 UTC

Kelp causes the fish population to decrease because it provides rare shelter for them in open water, although this is a good thing it can also attract predators.

Availability of sunlight

416030_1 — 2024-02-23 03:52:52 UTC

416030_1 — 2024-02-23 03:57:32 UTC

Sunlight can affect the fish population because when fish don't get enough sunlight they don't receive their essential nutrients that will enhance colors and keep them healthier.