Portugal country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments:
National Checklist: Portugal
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/po.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993
National Database:

Common names from other countries

Bottlenose dolphin, ... more

Classification / Names / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Cetartiodactyla () > Delphinidae (marine or true dolphins)

Environment: milieu / climate zone / depth range / distribution range Écologie

Pélagique; océanodrome (Ref. 75906); profondeur 0 - 1316 m (Ref. 116169). Tropical; 90°N - 90°S, 180°W - 180°E

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Introductions

Atlantic Ocean, Indo-Pacific and Mediterranean and Black Sea. Tropical to temperate.

Length at first maturity / Taille / Poids / Âge

Maturity: L_m ?, range 240 - 260 cm Max length : 380 cm TL mâle / non sexé; (Ref. 1394); poids max. publié: 650.0 kg (Ref. 1394)

Description synthétique Morphologie

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).

Référence principale Références | Coordinateur | Collaborateurs

Tan, J.M.L. 1995. (Ref. 936)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Least Concern (LC) ; Date assessed: 13 May 2018

statut CITES (Ref. 108899)

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Utilisations par l'homme

Pêcheries: commercial; appât: usually
FAO - pêcheries: landings, species profile | FishSource | Sea Around Us

Outils

E-book | Guide de terrain

Plus d'informations

Pays
Zones FAO
Écosystèmes
Occurrences
Introductions
Stocks
Écologie
Régime alimentaire
Éléments du régime alimentaire

Noms communs
Synonymes
Prédateurs
Reproduction
Maturité
Frai
Fécondité
Œufs
Développement de l'œuf

Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Morphologie
Larves
Abondance

Références
Mass conversion

Collaborateurs
Images

Sources Internet

Estimates based on models

Preferred temperature (Ref. 115969): 6.4 - 28.9, mean 20.3 (based on 16698 cells).

Résilience (Ref. 69278) Haut, temps minimum de doublement de population inférieur à 15 mois (K=0.14-0.48; tm=8.5).

Vulnérabilité (Ref. 71543): High to very high vulnerability (67 of 100).

Catégorie de prix (Ref. 80766): Unknown.

Tursiops truncatus (Montagu, 1821)