NRES 287 — Week 13: Fisheries Management (Tuna)

Why are tuna important to study in environmental science?

Tuna represent overfishing, global trade, bycatch issues, & challenges in international resource management.

Why is Atlantic Bluefin tuna especially significant?

It is one of the largest & most valuable fish species in the world.

Since when have tuna populations significantly declined?

Since the 1970s

What is bycatch?

The accidental capture of non-target species during fishing.

What animals are commonly caught as tuna bycatch?

Dolphins, sharks, & turtles.

What does IUU fishing stand for?

Illegal, unreported, & unregulated fishing.

Why is tuna management difficult?

Tuna migrate long distances across international waters.

How far can tuna migrate in one season?

Over 4,000 miles.

Why can’t tuna be manages only through national laws?

Their migration crosses many countries & international waters.

Why are tuna vulnerable to overfishing?

They grow slowly, live long lives, & are highly valuable.

Why did tuna become especially valuable after the 1960s?

Demand for sushi, especially in Japan, increased dramatically.

What environmental problem resulted from increased tuna demand?

Ecological destruction from overfishing & industrial fishing methods.

What is purse-seine fishing?

A fishing method that surrounds schools of fish with large nets.

What is aquaculture?

Farming aquatic organisms in controlled environments.

What is tuna ranching?

Capturing wild tuna & fattening them in pens before sale.

Why are some tuna fishing techniques environmentally harmful?

They increase over-harvesting & bycatch.

What is an Exclusive Economic Zone (EEZ)?

A zone extending 200 miles from a country’s coast where it controls marine resources.

Why are EEZs important for tuna management?

Countries manage fish stocks within their EEZ boundaries.

Why do EEZs still not fully solve tuna management problems?

Tuna migrate beyond national boundaries into international waters.

What is ICCAT?

The International Commission for the Conservation of Atlantic Tuna.

Why is international tuna governance often ineffective?

Weak enforcement, illegal fishing, & international disagreements limit success.

How does governance quality relate to illegal fishing?

Weaker governance is often associated with more illegal fishing.

What is green consumerism?

The idea that consumer choices can influence companies & industries toward sustainability.

What are eco-labels/certifications?

Labels showing products meet environmental standards.

What was a major success of dolphin-safe tuna labeling?

Dolphin deaths from tuna fishing decreased significantly.

Why was dolphin-safe labeling considered successful?

Major tuna companies adopted dolphin-safe practices after consumer boycotts.

What is one criticism of dolphin-safe labels?

Tuna are still overfished even if dolphins are protected.

Why are eco-labels complicated?

Sustainability standards vary & certification can be expensive.

What are consumption recommendations?

Guides that help consumers choose more sustainable seafood.

What is plant-based tuna?

Tuna substitutes made from plant ingredients.

Why hasn’t plant-based tuna fully replaced regular tuna?

It can be expensive & difficult to find.

What is cell-cultured/3D-printed tuna?

Fish products grown without harvesting actual fish.

Why is cultured tuna not yet widespread?

It is still expensive & not yet commercially viable.

What does political economy mean?

Economic systems are shaped by politics & power relationships.

What is Fordism?

A system of mass production linked to mass consumption & large corporations.

How were fisheries compared to Fordism?

Large-scale industrial fishing emphasized mass production & competition.

What is post-Fordism?

A more flexible, globalized economic system involving transnational corporations.

How did tuna fisheries shift from Fordism to post-Fordism?

Production became increasingly globalized & certification-based.

What is the Marine Stewardship Council (MSC)?

An organization providing sustainability certifications for fisheries.

What does the MSC label focus on?

Sustainable resource management rather than preservation.

Why is MSC certification criticized?

Small fishers may lack money & connections needed for certification.

Why are institutions important for eco-label success?

Institutions create standards, monitoring, & enforcement systems.

What is the social construction of species?

Humans assign different meanings & values to different animals.

What are charismatic species?

Species people find especially attractive, impressive, or emotionally appealing.

Why are dolphins considered charismatic species?

People see them as intelligent, beautiful, & emotionally relatable.

Why do people often care more about dolphins than tuna?

Dolphins are viewed as more charismatic & emotionally valuable.

What are virtual species?

Animals so commonly represented in media & culture that people think they are abundant even if populations are threatened.

What traits make species charismatic?

Beauty, rarity, danger, impressiveness, & cuteness.

Why are charismatic species important in environmental politics?

They attract more public support & conservation attention.

Why are fisheries considered common-pool resources?

Many people share access to limited fish populations.

How can institutions help manage fisheries sustainably?

They create shared rules & encourage collective management.

Why are institutions critical for tuna management?

Tuna migrate globally & require international cooperation.

What are the 3 major lenses used to analyze tuna?

Market-based solutions, political economy, & social construction/behavior.

What is one major challenge in tuna conservation?

Balancing economic demand with sustainable harvesting.

What is one major limitation of eco-labels?

They may protect one species while broader ecosystem problems continue.

What is one major lesson from the tuna case study?

Environmental problems are shaped by economics, politics, institutions, & human behavior together.