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    • Dinoflagellates
  • Scientific Names
    • Dinophyta

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Creative Commons Flickr Photos Tagged "Dinophyta."

Recent observations

Photos / Sounds

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What

Dinoflagellates Phylum Dinophyta

Observer

allisonjgong

Date

January 11, 2017 10:02 AM PST

Description

These dinoflagellates are blooming in the seawater system at Long Marine Lab. The cells a golden green color (not golden red, as in Akashiwo sanguinea) and the largest are 35-40 microns long. They do not appear to form chains.

Photos / Sounds

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Observer

j-southworth

Date

January 11, 2017 12:47 PM PST

Photos / Sounds

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Observer

lamamark

Date

August 5, 2012

Description

Light micrograph of the dinoflagellate Dinophysis acuminata Claparède & Lachmann 1859.

Phylum, Myzozoa; Class, Dinophyceae; Order, Dinophysiales; Family, Dinophysiaceae.

A marine armoured dinoflagellate; a small species of Dinophysis, with reported cell length of 38-56 microns (Hoppenrath et al. 2009). Cells are oval to elliptical in shape and elongated. Laterally flattened (compressed). Posterior is rounded. Epitheca is much smaller than the hypotheca. The surface is covered by circular areolae each with a small pore (see SEM images). Small protuberances are sometimes present at the posterior end of the cell. The left sulcal list (flange extension of the thecal plates) is developed but narrow and of even width, extending halfway or a little beyond the midpoint of the cell. It is reported that D. acuminata has a range of morphologies, rendering its taxonomic position somewhat uncertain (Plankton*Net and Kraberg and Montagnes 2012). Theca is covered by 19 plates. Some populations are bioluminescent and may cause DSP (diarrheic shellfish poisoning in humans) toxins (okadaic acid). Is mixotrophic; has chloroplasts and is also known to be phagotrophic (uses it's peduncle to extract cell contents of the prey organism).

20 micron net collection from surface waters in Porlier Pass, between Galiano Island and Valdes Island, Southern Gulf Islands, British Columbia, Canada. Aug 5, 2012.

Photos / Sounds

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Observer

lamamark

Date

July 14, 2005

Description

LM image of the dinoflagellate Neoceratium furca (Ehrenberg) F. Gomez, D. Moreira & P. Lopez-Garcia 2010 (taxonomic synonym of Ceratium fusus (Ehrenberg) Dujardin 1841.

Class, Dinophyceae; Subclass, Peridiniphycidae; Order, Gonyaulacales; Family, Ceratiaceae.

Elongated and spindle-shaped body. Both horns, apical and antapical, approximately equal length. Both horns are gradually tapering and slightly bent or straight. The right antapical horn is very small to an almost non-existent tooth-like form. Widest part of the cell is at the cingulum, medially located. Many yellow-brown chloroplasts. Cells are reported to be 300-600 m long and 20-30 m wide (Hoppenrath et al. 2009) and 200-300 m long by 15-30 m wide (Al-Kandari et al. 2009). Bioluminescence reported.

A cosmopolitan species, reported from tropical to temperate marine waters. Can form thick blooms, though not reported to be toxic.

Photos / Sounds

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Observer

georgepauly

Date

December 20, 2016 09:30 AM EST

Description

Discolored mud attributed to red tide prevalent in area.
Robinson Preserve, Manatee Co., FL.

Photos / Sounds

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Observer

guillermoonate

Date

November 29, 2016 05:30 PM PST

Photos / Sounds

Observer

sarka

Date

September 28, 2016

Description

Not certain. But it is definitely in the Order Noctilucales

Photos / Sounds

Observer

sarka

Date

September 28, 2016

Description

Not certain. But it is definitely in the Order Noctilucales.

Photos / Sounds

Observer

sarka

Date

September 28, 2016

Description

Possibly sp. kofoidi or even schwartzi

Photos / Sounds

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What

Dinoflagellates Phylum Dinophyta

Observer

daviswj

Date

September 21, 2016 11:54 AM EDT

Photos / Sounds

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What

Dinoflagellates Phylum Dinophyta

Observer

laragibson

Date

September 8, 2016 01:31 PM ADT

Description

From fresh water

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Description from Wikipedia

The dinoflagellates (Greek δῖνος dinos "whirling" and Latin flagellum "whip, scourge") are a large group of flagellate protists. Most are marine plankton, but they are common in fresh water habitats as well. Their populations are distributed depending on temperature, salinity, or depth. Many dinoflagellates are known to be photosynthetic, but a large fraction of these are in fact mixotrophic, combining photosynthesis with ingestion of prey, (phagotrophy). In terms of number of species, dinoflagellates form one of...

No range data available.
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