Mr. Brown's Science Labs

From Sag Harbor to Sustainability

The whaling industry — then and now
Comparison of five whale species: humpback, fin, minke, North Atlantic right whale, and sperm whale.
Lab 2 · Marine Biology Time · 35 minutes Points · 30 total
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whaling Sag Harbor North Atlantic right whale IWC moratorium Long Island NY Regents marine biology
PAGE 1 · READING Mr. Brown's Science Labs · Lab 2

From Sag Harbor to Sustainability

Local Connection. Sag Harbor, New York is about 75 miles east of our school. In the 1840s it was one of the busiest whaling ports in the United States.

§ 1 The Sag Harbor whaling era

In the 1820s through the 1870s, Long Island's Sag Harbor was a global whaling capital. Crews left port for two- to four-year voyages and returned with barrels of whale oil rendered from blubber, plus baleen (the long, comb-like plates inside some whales' mouths). Whale oil was the lamp fuel that lit American cities at night, and baleen was the springy plastic of its day — used in corsets, umbrella ribs, and buggy whips. The most-hunted species off our coast was the North Atlantic right whale, called "right" because it swam slowly near shore, floated when killed, and gave huge amounts of oil. By 1850, Sag Harbor had about 60 active whaling ships. By 1870, the industry was collapsing. Petroleum had been discovered in Pennsylvania in 1859, and kerosene quickly replaced whale oil. The whales themselves were nearly gone from local waters.

§ 2 Global collapse and the 1986 moratorium

After American whaling faded, industrial whaling exploded worldwide. Steam-powered catcher boats and exploding harpoons (invented in the 1860s) let whalers hunt the fastest, biggest species — blue whales, fin whales, and sperm whales — in the open ocean and even in Antarctica. Between 1900 and 1986, an estimated 2.9 million large whales were killed. Blue whale numbers dropped from about 250,000 globally to fewer than 400 in the Southern Ocean by the 1960s. In 1986, the International Whaling Commission (IWC) passed a worldwide ban — called a moratorium — on commercial whaling. Most nations stopped. Populations of humpback, gray, and southern right whales began to slowly recover.

2.9MWhales killed 1900–1986
1986IWC moratorium begins
~80KHumpbacks today (up from 10K)

§ 3 Modern whaling and the right whale crisis

Today only three countries still hunt whales commercially: Japan, Norway, and Iceland. Japan's 2025 quota was 413 whales (mostly minke and Bryde's). Norway raised its 2026 quota to 1,641 minke whales, but in 2025 hunters actually killed only 429 — demand for whale meat has collapsed. About 95% of Japanese people rarely or never eat whale meat, and surplus meat is now sold as pet food. Iceland's only whaling company did not hunt at all in 2024 or 2025, and Iceland's government has announced plans to introduce legislation to end commercial whaling in fall 2026.

Indigenous subsistence whaling — by Alaska Native, Greenlandic, and Russian Chukotka communities — continues under strict IWC quotas for food and cultural use. But the bigger crisis off Long Island today is not hunting. It is the North Atlantic right whale. Only about 380 are left, with roughly 70 reproductive females. They migrate every winter between feeding grounds in the Gulf of Maine and calving grounds off Florida — passing directly through the shipping lanes at the entrance to New York Harbor. One famous female, named "Accordion," has propeller scars across her back that look like the folds of the instrument. Vessel strikes and entanglement in lobster gear are the two leading causes of death. The 2026 calving season was the best in 17 years — 23 calves were born. Scientists call it cautious optimism.

"More than 85% of North Atlantic right whales have been entangled in fishing gear at some point in their lives." — NOAA Fisheries, 2026

Sentence Work

1. Unscramble the sentence. Click words in order. Correct words turn green.
2. Unscramble the sentence.
3. Expand this bare-bones sentence into one full sentence using the prompts.
Whalers killed right whales.
WhenWhy
4. Expand this bare-bones sentence.
Whale populations are recovering.
WhereHow
PAGE 2 · OPEN RESPONSE Mr. Brown's Science Labs · Lab 2

Answer in complete sentences.

Use the sentence starters and hints to build a full, well-formed answer.

1Why was Sag Harbor's whaling industry able to grow so large in the 1820s–1840s, and why did it collapse by the 1870s?
Starter: Sag Harbor's whaling industry grew because…
Hint: Mention whale oil, baleen, and what replaced whale oil after 1859.
2Explain why the North Atlantic right whale population has not recovered as quickly as the humpback whale population, even though both were protected by the 1986 IWC moratorium.
Starter: The North Atlantic right whale has recovered more slowly because…
Hint: Compare the two species in terms of diet, migration route, and modern threats.
3Identify two specific actions that scientists, governments, or boaters can take to reduce North Atlantic right whale deaths today, and explain how each one helps.
Starter: One action that helps protect right whales is… Another action is…
Hint: Think about vessel speed limits, Seasonal Management Areas, ropeless lobster gear, or the Whale Alert app.
PAGE 3 · VOCABULARY Mr. Brown's Science Labs · Lab 2

Whaling vocabulary

Click any card to flip it. Each card stays open for 8 seconds before flipping back. You can re-open a card as many times as you need.

Matching practice

Click a word, then click its matching definition. Correct matches turn green.

Term

Definition

0 of 8 matched
PAGE 4 · GRAPH & DATA TABLE Mr. Brown's Science Labs · Lab 2

Reading a population bar graph (8 points)

The graph below shows three population estimates for five large whale species: pre-whaling (before commercial whaling), lowest recorded, and current 2026. The Y-axis uses a logarithmic scale so all species fit on one graph — each gridline is 10× larger than the one below it. Use the graph to answer the four questions.

Reference: IUCN status & threats (for context)

SpeciesIUCN statusPrimary modern threat
Humpback (Megaptera novaeangliae)Least ConcernEntanglement
Fin (Balaenoptera physalus)VulnerableIceland & Japan hunt
Minke (Balaenoptera acutorostrata)Least ConcernNorway, Japan & Iceland hunt
N. Atlantic Right (Eubalaena glacialis)Critically EndangeredVessel strikes & entanglement
Sperm (Physeter macrocephalus)VulnerableNoise pollution & entanglement

Transcribe the graph data into the table (4 points)

Read each bar in the graph above and write the approximate population in the matching cell. You may use shorthand (e.g., 125K, 125,000, or 1.1M). For the minke whale's lowest population, write "no data" since that value is not known.

Species Pre-whaling population Lowest recorded population Current population (2026)
Fill in every cell to earn the full 4 points.

Read the graph — answer all four (4 points)

PAGE 5 · GRAPH ANALYSIS Mr. Brown's Science Labs · Lab 2

Blue whale population, 1900–2025

The graph below shows estimated global blue whale population over 125 years. Use it to answer the two questions underneath.

PAGE 6 · REGENTS-STYLE QUESTIONS Mr. Brown's Science Labs · Lab 2

Regents-style questions (8 questions, 1 point each)

Each question is modeled on a Jan 2026 Earth & Space Science Regents item type. Click your answer.

PAGE 7 · SYNTHESIS Mr. Brown's Science Labs · Lab 2

Putting it together

Is any commercial whaling sustainable today?

Iceland is about to ban it. Norway raised its quota but kills only a quarter of what it allows. Japan is selling leftover whale meat as pet food. Meanwhile, indigenous communities in Alaska, Greenland, and Chukotka still hunt small numbers of whales for food and culture. Weigh the three positions — commercial, subsistence, and full moratorium — and defend your answer.

Starter: I believe that ___ whaling is / is not sustainable today because…
PAGE 8 · YOUR GRADE Mr. Brown's Science Labs · Lab 2

Lab Complete

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Score breakdown

Final Score -- / 30

Printing produces a full PDF record with your data table, graph answers, written responses, and quiz results.