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 Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

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

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

Pelagiska; havsvandrande (Ref. 75906); djupintervall 0 - 1316 m (Ref. 116169). Tropical; 90°N - 90°S, 180°W - 180°E

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar

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

Length at first maturity / Size / Vikt / Age

Maturity: L_m ?, range 240 - 260 cm Max length : 380 cm TL hane/ej könsbestämd; (Ref. 1394); publicerad maxvikt: 650.0 kg (Ref. 1394)

Short description Morfologi

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).

Main reference referenser | Koordinator | Medarbetare

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

IUCN Red List Status (Ref. 130435)

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

CITES status (Ref. 108899)

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Human uses

Fiskeri: kommersiell; bete: usually
FAO - fiskeri: landings, species profile | FishSource | Sea Around Us

Verktyg

E-book | Fälthandbok

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag

Populärnamn
synonymer
Predatorer
Reproduktion
Könsmognad
Lek
Fecundity
Ägg
Egg development

Age/Size
Tillväxt
Length-weight
Length-length
Morfologi
Larver
Abundans

referenser
Mass conversion

Medarbetare
Bilder

Internet-källor

Estimates based on models

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

Resiliens (Ref. 69278) Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=0.14-0.48; tm=8.5).

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

Price category (Ref. 80766): Unknown.

Tursiops truncatus (Montagu, 1821)