The Atlantic Cod Fishery Collapse

Active learning works best for this topic because it transforms abstract data about fish populations and policy decisions into tangible, human-scale events. Students connect directly with the human, economic, and ecological consequences of the collapse when they analyze primary sources, debate real-world decisions, and map real community impacts.

• Grade 9
• Canadian Studies
• 4 activities
• 35 min–50 min

Learning Objectives

1. Analyze the primary ecological and economic factors contributing to the Atlantic cod fishery collapse.
2. Evaluate the effectiveness of Canadian government regulations and international agreements in managing marine resources.
3. Explain the long-term socio-economic consequences of the cod moratorium on coastal communities in Atlantic Canada.
4. Synthesize historical data and stakeholder perspectives to propose sustainable resource management strategies for the future.

Jigsaw

⏱ 45 min·Small Groups

Jigsaw: Fishery Collapse Causes

Assign small groups to research one cause: overfishing, poor science, or policy failures using provided texts. Each expert teaches their home group, then groups synthesize all causes into a shared cause-effect chart. Conclude with whole-class gallery walk to compare analyses.

Prepare & details

Analyze the primary factors that led to the collapse of the East Coast cod fishery.

Facilitation Tip: Before beginning the Jigsaw Expert Groups, set clear time limits for research and ensure each expert group prepares a 60-second summary of their causal factor for the whole class.

Setup: Flexible seating for regrouping

Materials: Expert group reading packets, Note-taking template, Summary graphic organizer

• Understand
• Analyze
• Evaluate
• Relationship Skills
• Self-Management

Simulation Game

⏱ 50 min·Small Groups

Stakeholder Role-Play: Moratorium Negotiations

Divide class into roles: fishers, scientists, government officials, community leaders. Groups prepare arguments for or against the moratorium using historical data. Hold a simulated town hall debate with structured turns for speaking and rebuttals.

Prepare & details

Evaluate how international fishing rights complicate efforts for marine conservation.

Facilitation Tip: For the Stakeholder Role-Play, assign roles randomly to avoid students defaulting to familiar perspectives, and circulate to prompt quieter students with questions about their character's constraints.

Setup: Flexible space for group stations

Materials: Role cards with goals/resources, Game currency or tokens, Round tracker

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Simulation Game

⏱ 40 min·Individual

Data Trends Graphing: Cod Stock Decline

Provide students with cod catch and biomass data from 1960-2000. Individually graph trends and annotate key events like quota increases. Pairs then compare graphs and present findings to the class, discussing turning points.

Prepare & details

Explain the socio-economic impacts of the fishery collapse on Atlantic Canadian communities.

Facilitation Tip: When students graph cod stock decline, provide printed data tables on different colored paper so groups can physically rearrange points to test trends before committing to a final graph.

Setup: Flexible space for group stations

Materials: Role cards with goals/resources, Game currency or tokens, Round tracker

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Simulation Game

⏱ 35 min·Pairs

Community Impact Mapping: Socio-Economic Effects

In pairs, students map pre- and post-collapse Newfoundland towns, plotting job losses, school closures, and new industries from case studies. Groups add layers for Indigenous perspectives and share via digital tool or posters for class feedback.

Prepare & details

Analyze the primary factors that led to the collapse of the East Coast cod fishery.

Facilitation Tip: During the Community Impact Mapping activity, require students to cite at least one primary source quote or statistic for each consequence they map in their communities.

Setup: Flexible space for group stations

Materials: Role cards with goals/resources, Game currency or tokens, Round tracker

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Teaching This Topic

Teachers should anchor this topic in primary sources—old fishing reports, news clippings, and government memos—so students experience the uncertainty and conflicting information that decision-makers faced. Avoid presenting the collapse as inevitable; instead, emphasize how small policy decisions accumulated over time. Research shows that when students engage with primary documents and role-play, they better understand the human dimensions of economic and ecological crises.

What to Expect

Successful learning looks like students who can explain the multi-causal nature of the collapse, identify key stakeholders and their conflicting interests, and articulate how decisions made over decades led to the 1992 moratorium. They should also be able to evaluate the moratorium's mixed outcomes and connect historical lessons to modern resource management challenges.

Watch Out for These Misconceptions

Common Misconception

During the Jigsaw Expert Groups activity on Fishery Collapse Causes, watch for students attributing the collapse to a single cause like pollution.

What to Teach Instead

Use the timeline construction task to have groups arrange data points from the 1960s to 1992, forcing them to see how overfishing and delayed regulation built over decades rather than pointing to one environmental event.

Common Misconception

During the Stakeholder Role-Play on Moratorium Negotiations, watch for students assuming foreign fleets alone caused the collapse.

What to Teach Instead

Assign balanced stakeholder roles including Canadian industrial fleets, inshore fishermen, scientists, and government officials, and require arguments to cite specific quotas and policy changes from the 1977 extension to 1980s.

Common Misconception

During the Data Trends Graphing activity on Cod Stock Decline, watch for students claiming the moratorium fully resolved the crisis.

What to Teach Instead

Have students extend their graphs to include 2000s data to show persistent low cod populations, then facilitate a class discussion connecting these trends to ongoing management challenges.

Assessment Ideas

Discussion Prompt

After the Stakeholder Role-Play on Moratorium Negotiations, pose the discussion prompt about late 1980s government actions. Ask students to reference evidence from their role-play arguments, scientific data shown during graphing, and the community maps to support their responses.

Quick Check

During the Jigsaw Expert Groups activity on Fishery Collapse Causes, provide students with a short excerpt from a 1980s government report. Ask them to identify one cause and one consequence mentioned in the text, and one stakeholder group affected, using the expert group materials to guide their answers.

Exit Ticket

After the Community Impact Mapping activity, have students write on an index card one lesson learned from the Atlantic cod fishery collapse that could be applied to managing another natural resource in Canada today, using examples from their maps to justify their choices.

Extensions & Scaffolding

• Challenge early finishers to research and present one example of a modern fishery with similar warning signs (e.g., North Atlantic right whales, Pacific salmon), using the same analytical framework from the Jigsaw activity.
• Scaffolding for struggling students: Provide pre-selected primary source excerpts with key phrases highlighted to help them focus on the most relevant information during expert group preparation.
• Deeper exploration: Invite students to interview a local resource manager, conservationist, or business owner to compare historical patterns with current practices in sustainable resource use.

Key Vocabulary

Moratorium	An official suspension or prohibition of an activity. In this case, a temporary ban on cod fishing.
Overfishing	Harvesting fish at a rate faster than the population can replenish itself, leading to a decline in fish stocks.
Exclusive Economic Zone (EEZ)	A maritime zone extending 200 nautical miles from the coast, within which a country has sovereign rights for exploration and resource management.
Stock Assessment	The process of estimating the size and health of fish populations to inform management decisions, which proved flawed in the cod case.