Top Tweets for #Calcareous
#Calcareous #sponges (#Porifera, #Calcarea) from São Sebastião, São Paulo: #newspecies and #newrecords in two marine protected areas of Southeastern #Brazil Ecoregion
#taxonomy
https://t.co/Ydx2O7WV0E
#Argonauts (#Argonautidae, #Octapoda) are a group of #octopuses that, like the Nautilidae, have a coiled #shell made of lime on their bodies. However, there is no close relationship between these two cephalopod groups. The #calcareous skeleton of octapods has been completely lost through #evolution. The shell at argonauts is a secondary new development. It is therefore called a #pseudoconch and is not firmly attached to the animal's body. Instead, the shell is held in place with the arm ring placed over the body and the arm suction cups attached to it.
The building material for the shell is secreted by glands in the distal area of the first pair of arms. Unlike Nautilus, the shell of Argonauts is very thin and is not made of #aragonite, but of #calcite. The shells of Nautilidae and Argonautidae therefore do not meet any #homology criteria. The shell of the Argonautidae is only worn by females because its function is to transport and protect the egg deposit. In addition, the shell performs a similar (#analogue) function to that of Nautilus. The authors J. K. Finn & Mark D. Norman (2010) have confirmed that the female Argonauts actively fill their shells with air on the water surface when necessary in order to generate the necessary #buoyancy to be able to float in the desired water layers.
© #StefanFWirth, Berlin 2024
References:
J. K. Finn & Mark D. Norman (2010): https://t.co/mfkX8fF1j6
A short video file on X on "takuya pro diver" :
https://t.co/ZfMrevHbZB
Photos:
1) Female #Argonauta #argo with severely damaged eggcase and eggs, encountered at a depth of about 20 cm in a cove at the southern coast of Turkey. Original uploader was Bernd Hofmann, 2007, licensed under creative Commons https://t.co/QvN9f7YYc6
2) Argonauta argo, Comingio Merculiano (1845–1915) in Jatta Giuseppe, in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
https://t.co/1AODSNJi6D
海の生き物の知識が少しでもあれば
一生に一度は見てみたい！！というクラスの珍しいタコブネ
定置網にかかり、漁師さんがご厚意で保護してくれたみたいです。超感謝。
多分エマワトソンくらい会えないと思う。
Vinya de la Plana:
#Calcareous soil, with clay texture planted in 2018 with Royat trained vines and the surface area is 1.4 ha.
The soils are what nourish the #vineyard and are the true origin of our #wines.
Mas del Serral is born from the vines and soils of Clos del Serral.
Its soils are #calcareous, with a large amount of marine #fossils that provide a unique mineral character in the mouth.
Eyebright - classic of #chalkgrasslands is #hemiparasitic #shoreham #darenthvalley #kent #wildflowers #calcareous #grasslands
Nice orchid spotting in #Jämtland
#calcareous #soil
|Cypripedium calceolus|
|Ophrys insectifera|
|Dactylorhiza incarnata var. cruenta|
[#Palevol] Foraminifers and calcareous algae in Brigantian rocks as guides for the recognition of the Viséan-Serpukhovian boundary interval of Morocco
✒️ Pedro CÓZAR, Daniel VACHARD & Ian D. SOMERVILLE
🔗 https://t.co/8Ymz5UDEGp
#Foraminifers #calcareous #algae #FossilFriday
![Publi_MNHN's tweet photo. [#Palevol] Foraminifers and calcareous algae in Brigantian rocks as guides for the recognition of the Viséan-Serpukhovian boundary interval of Morocco
✒️ Pedro CÓZAR, Daniel VACHARD & Ian D. SOMERVILLE
🔗 https://t.co/8Ymz5UDEGp
#Foraminifers #calcareous #algae #FossilFriday https://t.co/ok0i9ExmQt](https://pbs.twimg.com/media/FtrRhhPXgAME8G6.jpg)
Time is flying! 5 years ago of sampling #earthworms in #calcareous, #grassland, #alpine #soils (@tumsoil, @BonaRes4u, https://t.co/BghRFHu4f0). It was hard work, nice people... that produced a good paper: https://t.co/FT4oU7c3jq
2️⃣ #Calcareous & have pH ranging from 7.8 to 8.7
3️⃣ Smectitic-clay minerals, Cation exchange capacity [30-60 cmol(pt)kg-' soil].
4️⃣ High #water and #nutrient holding capacity.
5️⃣ Less #permeability and poses #drainage problem.
My latest #filming today of my Pomatias elegans #molluscs in my #terrarium. This species loves to burrow in the #calcareous soil when resting, resurfacing to eat/drink. Half the population started to #hibernate, the rest are still active. @conchsoc @CardiffCurator @JonathanAblett
Today my humans started their #hedgewatch on #Fuerteventura at the #PopcornBeach. It's of course not #Popcorn, but the remnants of
#Calcareous #algae that after they died got bleached & washed ashore. Worth another Pawsome 🐾
....
#geology #travel
Today my humans started their #hedgewatch on #Fuerteventura at the #PopcornBeach. It's of course not #Popcorn, but the remnants of
#Calcareous #algae that after they died got bleached & washed ashore. Worth another Pawsome 🐾
....
#geology #travel
The soil life chose me 🌱 My contribution to the #WCSS22. The sunglasses were needed, what a week!!! ☀️ #LTE #sewagesludge #carbon #Mediterranean #calcareous #soil
What are some uses for limestone? We mention some of them here: https://t.co/5Z2SwoMb7s #limestone #calcareous #etching #etchremover
The @RestREco1 grassland team have been busy carrying out all the same #ecosystem #function measurements at 18 #calcareous #grasslands sites in Southern England.
Follow research technician @MWeites from @UK_CEH for updates on our progress!
Bales de pel #mulching de les 2 parcel.les més calcàries i aixutes 🥴
#ClimaticChange
#calcareous # Sumoll
#Enotourism #winelover
#Enoturism
#Oenoturisme #biodynamicfarming
#VisitCellar #OrganicFarmers
#NaturalWine #VinNaturel
#DestilemVida
Bales de pel #mulching de les 2 parcel.les més calcàries i aixutes 🥴
#ClimaticChange
#calcareous # Sumoll
#Enotourism #winelover
#Enoturism
#Oenoturisme #biodynamicfarming
#VisitCellar #OrganicFarmers
#NaturalWine #VinNaturel
#DestilemVida
📝 Taphonomic bias on #calcareous micro and #nannofossils and #paleoenvironmental evolution across the #Messinian #Salinity #Crisis onset: Insights from the #Sorbas #Basin (SE #Spain) 🇪🇸
🔗 https://t.co/VBs74TLlYC
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