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File:Strandschnecke (mit aktiven Seepocken).webm

Original file ‎(WebM audio/video file, VP8/Vorbis, length 1 min 57 s, 1,080 × 1,920 pixels, 2.29 Mbps overall, file size: 31.97 MB)

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Deutsch: Strandschnecken, bewachsen mit lebenden Seepocken in Gezeitentümpeln am Badestrand der Nordseeinsel Wangerooge. Einige Details fallen sofort auf:

• Die Kriechspur, gut am Anfang zu sehen
• Der pendelnde, schwere Gang der einen Schnecke
• Das Tigermuster der Fühler der Schnecken
• Die Strandgespräche im Hintergrund
• Das feine Treibgut an der Wasseroberfläche

• Die Sandkörner als Größenvergleich

Quellseite: https://www.rhetos.de/html/lex/seepocke.htm

Ein weiteres Video zeigt lebende Rankenfußkrebse fest auf Steinen sitzend.

Interessant ist auch die Frage nach dem ökologischen Verhältnis der beiden Tierarten: profitieren die Seepocken von der ständigen Ortsveränderung weil sie dadurch immer neu in bisher unfiltriertes Wasser kommen? Profitieren die Schnecken von dem verstärkten Schutz vor Fressfeinden? Mit den vielen Seepocken können sie sicherlich schlechter von Vögeln aufgegriffen werden. Oder schadet es den Schnecken, wenn ihr Gehäuse überladen wird? Fällt ihnen dadurch das Kriechen immer schwerer? Sieht man hier ein parasitäres Verhältnis oder eher eine Symbiose?
Date
Source Own work
Author Rhetos, Sabine Heim

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I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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Date/TimeThumbnailDimensionsUserComment
current04:54, 28 July 20231 min 57 s, 1,080 × 1,920 (31.97 MB)Rhetos (talk | contribs)Uploaded own work with UploadWizard

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Format Bitrate Download Status Encode time
VP9 1440P 2.92 Mbps Completed 05:00, 28 July 2023 6 min 31 s
Streaming 1440p (VP9) 2.83 Mbps Completed 21:26, 23 January 2024 10 s
VP9 1080P 1.36 Mbps Completed 04:58, 28 July 2023 3 min 38 s
Streaming 1080p (VP9) Not ready Unknown status
VP9 720P 709 kbps Completed 04:57, 28 July 2023 2 min 41 s
Streaming 720p (VP9) Not ready Unknown status
VP9 480P 417 kbps Completed 04:57, 28 July 2023 2 min 11 s
Streaming 480p (VP9) Not ready Unknown status
VP9 360P 270 kbps Completed 04:55, 28 July 2023 1 min 16 s
Streaming 360p (VP9) Not ready Unknown status
VP9 240P 190 kbps Completed 04:55, 28 July 2023 1 min 4 s
Streaming 240p (VP9) 99 kbps Completed 22:53, 16 December 2023 1.0 s
WebM 360P 530 kbps Completed 04:55, 28 July 2023 36 s
Streaming 144p (MJPEG) 1.01 Mbps Completed 11:12, 19 November 2023 9.0 s
Stereo (Opus) 90 kbps Completed 00:11, 24 November 2023 2.0 s
Stereo (MP3) 128 kbps Completed 11:12, 19 November 2023 4.0 s

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