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Longnose spurdog Squalus blainvillei was sampled along the Greek coasts of the northern Ionian Sea during September-October 1999 and April 2000. A professional motor powered vessel, equipped with a bottom trawl-net with stretched mesh size of 20 mm in the cod-end, was used. The hauls were taken, from down to dusk, between 300 and 1200 m of depth. A total of 733 individuals were collected between 312 and 788 m. Most of them were distributed in the depth range of 300-500 m in both surveys. The percentage of females on the whole sampled population was 47.5% in September-October and 54.5% in April. A wide size-range, up to maximum total lengths of 785 mm in females and 664 mm in males, was found. Specimens smaller than 300 mm were found in both September-October and April as well as mature individuals of both sexes. The smallest mature females and males measured 580 and 412 mm respectively. The size at first maturity was 601 mm in females. At length greater than 510 mm all males were mature. The percentages of ripe females were 52.8% in September and 30.3% in April. The length-weight relationship was performed in both females and males.

First Data on Distribution and Biology of Squalus bainvillei (Risso, 1826) from the Eastern Mediterranean Sea