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Cybium,
International Journal of Ichthyology |
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On the presence of basking shark (Cetorhinus maximus) in the Mediterranean Sea Cecilia MANCUSI (1), Simona CLÒ (2), Marco AFFRONTE (3), Mohamed Nejmeddline BRADAÏ (4), Farid HEMIDA (5), Fabrizio SERENA(1), Alen SOLDO (6) & Marino VACCHI (2) (1) ARPAT,
Via Marradi 114, 57100 Livorno, ITALY. Abstract.
- The presence of basking shark Cetorhinus maximus Gunnerus,
1765 throughout the Mediterranean Sea was investigated using data stored
in the Large Elasmobranch Monitoring programme database (Italy),
with new records coming from the French area and also including the first
data from the eastern sector of the Mediterranean basin. More than 500
records of information on basking sharks were included in the database,
with older records coming from the 19th century, but also including the
most recent literature. Data revealed the presence of specimens of quite
different sizes that ranged from very young (about 2 m TL) to large adults
(8-9 m TL) encompassing large part of the body length range known for
this shark at global scale. Most of the occurrences of the species in
Mediterranean are reported off the coastal areas of the western central
sectors of the Mediterranean basin, where it is often caught incidentally
by trammel nets in spring. The numerous records registered in the last
two decades may be related rather to an increasing scientific and public
interest on the species than to an actual abundance trend of the Mediterranean
population. The knowledge on the distribution and population structure
of basking shark in the Mediterranean basin plays an important role in
the implementation of conservation measures of such protected species. |
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