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er-cryptid · 1 year

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pillowspace · 7 months

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GIRLY JUST FOUND OUT ABOUT CYERCE ELEGANS

If Cyerce nigricans is a butterfly, then this is a fairy... Cyerce nigricans for comparison:

#sea slug #ok i have to go make food #hello my 11k notes. may i offer you: sun fnaf #alright this has 15k notes now. i guess i'll add tags #marine biology #nature #ocean #sea slugs #marine life #animals #sacoglossans #sacoglossan

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unrealward · 2 months

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deep sea creature (2020)

#2020 #creature design #colored pencil #speculative biology #marine life #deep sea creatures #prompt: something both dangerous/creepy and cute #I think the inspirations are relatively obvious but special note is that the 'head' opens up and swallows prey like a deepstaria jellyfish

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fishyfishyfishtimes · 6 months

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happy world basking shark day. do you have any facts?

Sure! World Basking Shark Day was on November 3rd, so this is two days late (though, this ask was only sent on the 4th), but I hope you like a basking shark fact anyway!

Daily fish fact #622

Basking shark!

They can have up to 1 500 tiny teeth, six rows on their upper jaw and nine rows on their lower jaw! These teeth are not used for feeding, as the basking sharks instead filter feeds via the use of their gill rakers; these small teeth are thought to aid in reproduction, to help the male keep hold of the female.

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doggiewoggiez · 7 months

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My snowflake moray Igorrrr loves to pop up in the stupidest fucking places man. Actual joke of an animal.

#thats igorrrr with four r's #i havent posted about him yet but ive had him for a while he just recently started showing himself regularly #until now hes just been hiding always #i got him on super deep discount cuz of my faggy vibes #i have to note that bcuz i know i have a dono post and i dont want anons about it. he came before the recent money fuckery.#marine biology #moray eel #reef tank

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paledinosaurrebel · 2 months

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Oh to study on the floor

#studyblr #study notes #uniblr #university #uni #uni student #chaotic notes #chaos space marines #studying on the floor #chaotic table #ahhhhh #biology #biology notes #oh no

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noncompliantcyborg · 6 months

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Let's Talk Sea Slugs: Rostanga pulchara

Rostanga pulchara is a small species of dorid nudibranch commonly found grazing on the red sponges that give it its color.

The adult below was 16mm long and 8mm wide, but they can grow to as large as 33mm long (Jensen et al 2018).

Above - Adult Rostanga pulchara collected from Cattle Point Intertidal, San Juan Island by Babonis Lab, Summer 2022.

Above - Closeups of Rostanga pulchara. Left - mantle showing the texture and shape of the tubercles. Center - gills. Right - rhinophore.

Along with size and color, a defining characteristic of the nudibranch is its uniquely shaped rhinophores (Jensen et al 2018). One is pictured above on the right.

A good way to find them in the wild is to look for the sponges that they eat. Two of these species are the velvety Clathria pennata and the "volcano-shaped" Acarnus erithacus (Jensen et al 2018). Both sponges are encrusting and highly pigmented.

The pigments from the sponge not only color the adult nudibranchs, but also their eggs (Jensen et al 2018). This can be seen in the early embryos below.

Above - Rostanga pulchara embryos, 2-cell and 4-cell stages. Viewed on 6/21/2022 under 40x magnification. The center 2-cell embryo was 111 microns across.

A week and a half later, these embryos had developed close to the point of hatching.

Unhatched veliger larvae, with visible shell anViewed on 7/1/2022 under 40X magnification. The center embryo measured at 125 microns across.

These nudibranchs, like many others, have a larval form called veligers. These veligers have shells and big ciliated lobes.

Hatched veliger larvae. Viewed on 7/7/2022 under 40X magnification.

Hatched veliger larvae from the same clutch of original eggs. Viewed on 7/13/2022 under 20X magnification. The larvae on the right was measured as 194 microns across the veler lobes and 178 micros from the top of the shell down to where the veler lobes exit the shell.

Sources:

Personal lab notes and obervations.

Jensen et al. Beneath Pacific Tides. MolaMarine, 2018.

All photographs by JA Fields, do not repost without express written permission.

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#science communication #marine biology #nudibranchs #sea slugs #developmental biology #larval biology #marine invertebrate #embryology #science #marine life #salish sea #sea creatures #my photography #my marine life photos #my sci-comm #my lab notes

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makofinz · 3 months

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