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Starfish and Fishes | by Batikart
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Starfish and Fishes

One of our tours in Northern Spain along the Atlantic Coast ended in the aquarium Donostia-San Sebastián. I haven't been in an aquarium for some years.

 

There are a number of tropical aquariums, an oceanarium, a Caribbean reef with toxic fishes. Exciting was to be inside the Ocean (see in my comment) ... a huge tank with a multitude of marine life species - which can be seen from inside an acrylic tunnel . Going through it you can see for example shark, ray or eel next to you and above you. The visit was worthwhile and very attractive!

I don't like all photos I've taken because it was really dark for my little Canon. I want to show you those from which I hope you like them ;-).

 

Starfish or sea stars are echinoderms belonging to the class Asteroidea. The names "starfish" and "sea star" essentially refer to members of the Class Asteroidea. However, common usage frequently finds "starfish" and "sea star" also applied to ophiuroids which are correctly referred to as "brittle stars" or "basket stars".

 

There are 2,000 living species of starfish that occur in all the world's oceans, including the Atlantic, Pacific, Indian as well as in the Arctic and the Southern Ocean (i.e., Antarctic) regions. Starfish occur across a broad depth range from the intertidal to abyssal depths (>6000 m).

 

Starfish are among the most familiar of marine animals and possess a number of widely known traits, such as regeneration and feeding on mussels. Starfish possess a wide diversity of body forms and feeding methods. The extent that Asteroidea can regenerate varies with individual species. Broadly speaking, starfish are opportunistic feeders, with several species having specialized feeding behavior, including suspension feeding and specialized predation on specific prey.

 

The Asteroidea occupy several important roles throughout ecology and biology. Sea stars, such as the Ochre sea star (Pisaster ochraceus) have become widely known as the example of the keystone species concept in ecology. The tropical Crown of Thorns starfish (Acanthaster planci) are voracious predators of coral throughout the Indo-Pacific region. Other starfish, such as members of the Asterinidae are frequently used in developmental biology. .... read more Starfish - en.wikipedia

 

The details from the backside are worth to view Large On Black

 

Eine unserer Touren in Nordspanien entlang der Atlantikküste endete im Aquarium Donostia-San Sebastián. Ich war schon etliche Jahre nicht mehr in einem Aquarium. Es gibt dort viele tropische Aquarien, ein Ozeanarium, ein Karibik Riff mit einigen giftigen Fischen. Aufregend war "im Ozean" ... ein Tunnel aus Acryl. Geht man durch ihn hindurch findet man neben und über sich z.B. Hai, Rochen, Aal und vieles mehr. Der Besuch war sehr lohnenswert und interessant!

Leider sind nicht alle Aufnahmen mit meiner kleinen Canon so geworden wie ich es mir gewünscht hätte, da es doch sehr dunkel war. Ich möchte euch die zeigen von denen ich hoffe, dass sie euch gefallen ;-).

 

Der Seestern (Asteroidea) (abgeleitet von gr. aster, Stern) gehört zur Klasse von Eleutherozoen innerhalb des Stamms der Stachelhäuter.

 

Seesterne sind weltweit in den Meeren verbreitet, wobei die größte Artenvielfalt im Küstenbereich vorkommt. Sie bevölkern nahezu jeden Untergrund wie Fels, Sand, Kelp oder Seegras und wurden bis in eine Tiefe von 9.000 Meter nachgewiesen.

 

Fossile Aufzeichnungen belegen das Auftreten der Asteroidea vor über 300 Millionen Jahren; innerhalb von 50 Millionen Jahren entwickelten sich deutlich unterschiedliche Arten.

 

Ein bekannter Vertreter der Seesterne ist der Gemeine Seestern (Asterias rubens). Mehr: Wikipedia

 

My most interesting photos on black on one site

 

© 2010 Ursula Sander - All rights reserved.

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Taken on April 30, 2010