4. Suppose you own a fishing business located at approximately 38° N latitude off the coast of Maryland. Most of the fish you catch are Atlantic cod, and your primary means of catching fish are gillnetting and longlining.


a. Describe two advantages, related to thermohaline circulation and surface ocean currents, of your fishery’s location.


b. Explain what happens during El Niño-Southern Oscillation. Describe two ways that an El Niño event can alter the number of fish you catch in a year.


c. Are your primary methods of fishing sustainable? Explain your answer. Describe two alternative fishing methods you could use, and explain whether each method is more or less sustainable than your current methods.


d. Identify two pieces of legislation that regulate fishing in U. S. Or international waters, and explain how each piece of legislation affects your fishery

Respuesta :

a. The fisheries benefits greatly from the interaction between warm shallow current low salinity water and cool deep current high salinity water.

b. An El Nino warms the oceans and prevents the normal cold-water upwellings, which transport the nutrients necessary to sustain fish and producer populations.

c. Harpooning and trolling are my preferred methods of fishing because they are both environmentally friendly and allow for the release of bycatch.

d. The Magnuson-Stevens Fishery Conservation and Management Reauthorization Act and the UN Convention on the Law of the Sea (UNCLOS)

What is Salinity water?

The amount of salt present in water or soil is referred to as salinity. Primary salinity (also known as natural salinity), secondary salinity (also known as dryland salinity), and tertiary salinity are the three types of salinity that can exist and are differentiated by their causes (also called irrigation salinity).

What is El Nino warms?

El Nio is a term that is frequently used to refer to the periodic warming of the ocean's surface temperature, which is typically centered in the central-east equatorial Pacific. When sea temperatures in the tropical eastern Pacific rise by 0.5 °C or more above the long-term average, an El Nio is declared.

What is Harpooning?

Harpoon, a barbed spear that was once thrown by hand but is now, in the case of whales, shot from specially made guns, is used to kill whales, tuna, swordfish, and other huge sea creatures.

What is Magnuson-Stevens Fishery?

The legislation governing the management of marine fisheries in U.S. waters is known as the Magnuson-Stevens Fishery Conservation and Management Act (also known as the Magnuson-Stevens Act).

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