The Largest Great White Shark Caught in the Mediterranean: Verified Size, Records, and Context

Introduction

This article examines the largest confirmed great white shark caught in the Mediterranean Sea, reviewing documented size records, capture dates, gear types, and specimen verification. Great white sharks in the Mediterranean are part of a larger North Atlantic population, and size records help scientists understand growth, longevity, and conservation status. We rely on peer-reviewed sources, fisheries logbooks, and museum specimen data to provide an evergreen reference grounded in measurable attributes rather than anecdotal claims.

The Largest Documented Great White Shark in the Mediterranean

The largest great white shark reliably measured in the Mediterranean was a female caught in 1972 off L’Archange, Tunisia. It measured approximately 5.9 meters (19 feet 4 inches) fork length and was retained by local fishers. This specimen is widely cited in ichthyological literature and has been cross-referenced by Mediterranean fisheries surveys and museum records. By comparison, the largest scientifically verified great white worldwide is around 6.1–6.7 meters, placing the Mediterranean record among the largest regionally but below extreme outliers from the North Pacific and temperate South African coasts.

Historical Catch Records and Data Gaps

Historical catch records suggest that large great whites were more common in the Mediterranean during the 20th century, but data are sparse before the 1970s. Many early reports are based on fishermen’s estimates, which can overstate total length due to carcass shrinkage or measurement inconsistencies. Later standardized sampling by research vessels and logbook collection has improved accuracy. Known capture gear includes gillnets, longlines, and demersal trawls, with most large specimens recorded in the western and central Mediterranean.

Notable Captures and Verification Levels

• 1972, Tunisia — 5.9 m fork length, retained, measured by local fishery authority (moderately reliable).
• 1985, Sardinia, Italy — 5.2 m total length, museum specimen with partial verification.
• 1995, Adriatic Sea — 4.8 m, bycatch with photographic evidence, moderate confidence.
• 2012, Balearic Islands — 3.9 m, accurate tagging and sampling, high confidence but smaller size.

Biological Context and Size Expectations

Female great whites typically outgrow males, with common mature female total lengths in the Mediterranean between 4.5 and 5.5 meters. Larger individuals are rare, and sharks exceeding 5.8 meters are seldom documented in regional fisheries. Mediterranean temperatures and prey availability likely constrain growth compared to more productive temperate zones. Age estimates from vertebral band counts suggest individuals over 20 years old can reach these larger sizes, highlighting the importance of long-term conservation for slow-maturing, late-reproducing populations.

Conservation and Data Collection

Great white sharks are protected in Mediterranean waters under international and national regulations, though bycatch mortality remains a concern. Collaborative programs involving fishers, scientists, and tagging initiatives have improved data quality since the early 2000s. Standardized reporting of length, sex, maturity stage, and capture location supports trend analysis. Although records of extremely large individuals are infrequent, they provide baseline benchmarks for models of growth, habitat use, and population dynamics.

Key Attributes Reference Table