Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Πελαγικό(ά); ωκεανόδρομο(ς) (Αναφ. 75906); εύρος βάθους 0 - 1316 m (Αναφ. 116169). Subtropical
096675 Tursiops truncatus ponticus Endemic to Black Sea.
Length at first maturity / Μέγεθος / Weight / Age
Maturity: Lm ?, range 240 - 260 cm Max length : 380 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 1394); μεγ. δημοσιευμένο βάρος: 650.0 kg (Αναφ. 1394)
Short description
Μορφολογία
This coastal subspecies (Tursiops truncatus geyphyreus) can be distinguished from the nominate offshore subspecies (Tursiops truncatus truncatus) by the following diagnosable cranial features: W-shaped border of the antorbital notch (vs. U-shaped); barely or not visible interparietal bone (vs. clearly visible); cranial vertex from the posterior end of nasals to the nuchal crest is short and rectangular (vs. long and squared); left nasal bone noticeably smaller and more compressed antero-posteriorly than the right (vs. nearly symmetrical); Falciform lateral margin of the ascending process of right premaxilla (vs. straight or slightly concave); lateral margin of the ascending process of the maxillae over the preorbital process is deflected dorsally (vs. flat) (Ref. 128824).
Preyed upon by great white sharks (Ref. 32140). Dolphins are directly caught for use as shark-bait in Sta. Ana and Aparri, Philippines (Ref. 77119). Found primarily in coastal and inshore regions of tropical and temperate waters of the world (Ref. 936) and deeper channels between islands (Ref. 122680). Also inhabits pelagic waters, such as those in the eastern tropical Pacific (Ref. 936). In herds of less than 20 individuals (Ref. 801). Feeds either cooperatively or in solitary. They can obtain prey via 'fish whacking' and steering fish onto mudflats (Ref. 122680). Feeds on fish (Refs. 801, 936) crustaceans, and cephalopods (Ref. 801).
Tan, J.M.L. 1995. (Αναφ. 936)
IUCN Red List Status
(Αναφ. 130435: Version 2024-2)
CITES status (Αναφ. 108899)
Human uses
αλιεία: Εμπορικό(ά); δόλωμα: usually
FAO - αλιεία: landings, species profile | FishSource | Η θάλασσα γύρω μας
Εργαλεία
Διαδικτυακές πηγές
Estimates based on models
Preferred temperature
(Ref.
115969): 6.4 - 28.9, mean 20.3 (based on 16698 cells).
Ελαστικότητα
Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (K=0.14-0.48; tm=8.5).
Vulnerability
Very high vulnerability (76 of 100).
Price category
Unknown.