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Here you'll find some great articles contributed by TONMO members and staff over the years. Also, see the Members' Publications forum.
Articles
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Latest comments
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Octopus bimaculoides Care Sheet (two-spot octopus)Hi @Nancy đź‘‹
you may have missed this one from @genericusername, so I'm tagging it for your attention.
- tonmo
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Octopus bimaculoides Care Sheet (two-spot octopus)Hi Nancy. I just had a few questions. I haven't begun salt tank keep just yet. I've mastered my 40gal rech eco tank and the husbandry that comes...
- genericusername
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Octopus Pet Checklist: Before You Get An Octopus as a Pet...This was the first time I learned that octopuses could be pets. Perhaps this acts soothingly, just as fish do for many people. In my opinion, they...
- RogerWalton
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Octopus bimaculoides Care Sheet (two-spot octopus)I think you’d like keeping a bimac. But I think any octopus would prefer having your live rock spread out a bit mare to make accessible caves. Nancy- Nancy
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Octopus bimaculoides Care Sheet (two-spot octopus)I can control my tank temp easily between 67 degrees-75degrees Fahrenheit depending on what species I’m keeping. It’s a 55gal pLus 15gal sump with...- ACC4
Featured articles
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Beyond Extinction: The Eternal Ocean (Wolfgang Grulke)
With good cause, the past 20 years has seen an explosion of articles, publications and books dealing with the impacts of climate change. Wolfgang Grulke's beautifully illustrated Beyond Extinction: The Eternal Ocean - Climate change & the continuity of life explores the organisms throughout...- Original publish date
- Jul 26, 2019
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Is Octopus Ink Similar to Fountain Pen Ink?
By Nancy King, 2003 What Is Octopus Ink? Inking Octopus by Steve O'Shea The ink of the octopus, or any cephalopod, is composed of highly concentrated melanin. This is the same dark pigment that we humans have, and which is responsible for skin color and the color of dark hair. It is a natural...- Original publish date
- Jun 1, 2003
- Nancy
- 3 min read
- Views: 61K
- Comments: 1
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Fossil Hunting on the Yorkshire Coast
By Andy Tenny (neuropteris) The Yorkshire Coast of England exposes a series of marine and terrestrial rocks ranging in age from the lower Jurassic at Cleveland in the north through to the chalk of the Upper Cretaceous at Flamborough Head in the South. Many of these formations are highly...- Original publish date
- Nov 21, 2004
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PDFs: A Collection of Cephalopod Papers
The following PDF files were contributed to TONMO over the years for sharing with the community. Summary of files Estimating age and growth rate in Architeuthis dux Steve O’Shea Auckland University of Technology, Auckland, New Zealand Caoimhghin Ó Maolagáin, National Institute of...- Contributing Authors
- various
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Vampyroteuthis Infernalis, Living Fossil
Note: Phil welcomes discussion on this article in the Cephalopod Fossils forum. Vampyroteuthis infernalis One of the most interesting, popular, and intriguing of all living cephalopods is that of Vampyroteuthis, the Vampire Squid. To follow is a brief look at this 'living fossil', its...- Original publish date
- Nov 29, 2005
- Phil
- 10 min read
- Views: 7K
- Reaction score: 1
- Comments: 1
Things to Think About Before You Get An Octopus as a Pet
by Nancy King
Nancy is a member of the TONMO.com staff -- you can discuss cephalopods with her and fellow TONMOers in our Octopus Care forum.
Keeping an octopus is fun and interesting, but an octopus is not the easiest pet to own. You...
- Original publish date
- Mar 1, 2004
by Colin Dunlop
Opening notes...
Since this article was originally written it has been necessary to rewrite parts of it. There have been significant advances within the hobby and cephalopod husbandry techniques are still evolving. It is certain to require more updates in the future but that's...
- Original publish date
- Mar 4, 2004
By Nancy King, 2003
What Is Octopus Ink?
Inking Octopus by Steve O'Shea
The ink of the octopus, or any cephalopod, is composed of highly concentrated melanin. This is the same dark pigment that we humans have, and which is responsible for skin color and the color of dark hair. It is a natural...
- Original publish date
- Jun 1, 2003
By Colin Dunlop - 2003
Discuss this article in our forums: Cuttlefish Care
When is a fish not a fish? Em... okay, er... em... It's not a funny joke, actually it's just a fact... cuttlefish are not fish!
Cuttlefish are much more closely related to garden slugs and snails than they are to fish...
- Original publish date
- Jun 18, 2003
By Colin Dunlop
National Suicide Prevention Lifeline
Call 1-800-273-8255
Available 24 hours every day
There are some references to octopuses and other animals "committing suicide." This is a subjective way of looking at certain types of animal death, such as saying that whales found beached on...
- Original publish date
- Mar 8, 2003
An analysis of the size of the largest cephalopods: Architeuthis and Mesonychoteuthis
Authored by Dr. Steve O'Shea and Dr. Kat Bolstad
Steve and Kat are members of the TONMO staff. You can communicate with them both in our Cephalopod Science forums.
INTRODUCTION TO FACT SHEETS
To ensure...
- Contributing Authors
- Dr. Steve O'Shea, Dr. Kat Bolstad
- Original publish date
- Apr 6, 2008
By Nancy King
"Ollie", about 9 months old -- Photo by Nancy King
Description
O. bimaculoidesis a medium sized octopus, reaching a mantle size of 7 inches (17.5cm) and arms to 23 inches (58cm). Some remain smaller than this. The bimac is not usually heavily textured and has several common...
- Original publish date
- Mar 1, 2003
By Colin Dunlop November 2003 (also appears in the February/March 2004, Issue - 16 of Marine World Magazine)
”The most commonly seen cephalopods for sale in the UK are octopuses, cuttlefish and nautiluses. Their husbandry is not too far removed from caring for any other marine species but...
- Original publish date
- Nov 1, 2003
Introduction
Imagine yourself standing on a bleak windswept Ordovician shore. It is 470 million years ago and you are standing on a rocky coastline staring out to sea. As you turn and pan the landscape behind you, all you can see are barren rocks, with no trees, plants or any form of animal...
- Original publish date
- Jul 15, 2004
Note: Phil Eyden welcomes discussion on this article in the Cephalopod Fossils forum.
Introduction
Architeuthis and Mesonychoteuthis, the giant and colossal squid, are enigmatic and awe inspiring animals. Very little is known about the lifestyle of these spectacular animals, despite the...
- Original publish date
- May 18, 2004
Covering Terminology used in the Description of Externally Shelled Cephalopods (Nautiloids and Ammonoids)
By Kevin Bylund
Note: Kevin welcomes discussion on this article in the Cephalopod Fossils forum.
The structure secreted by the mantle of cephalopods for protection or neutral buoyancy is...
- Original publish date
- Jan 1, 2005
By Nancy King
Nancy is a member of the TONMO.com staff -- you can discuss octopuses and more with her in our Cephalopod Care forums.
What is an octopus? It's a sea creature found in all oceans of the world, even in the cold waters of the Arctic and Antarctica. It lives in deep or shallow...
- Original publish date
- May 17, 2003
Note: Phil welcomes discussion on this article in the Cephalopod Fossils forum.
Fossil Octopuses
Fossils of octopuses are by far the most enigmatic and mysterious of all the ancient groups of cephalopods. Due to their delicate structure fossils of these animals are exceptionally rare, as the...
- Original publish date
- Nov 19, 2004
Note: Phil welcomes discussion on this article in the Cephalopod Fossils forum.
Introduction
Belemnites are probably the most well known extinct cephalopod after the ammonites. They are quite common fossils and have a worldwide distribution. They are a very characteristic and easily...
- Original publish date
- Sep 14, 2003
What lurks beneath...?
By Kat Bolstad
Note: Kat (Tintenfisch) welcomes discussion in the Physiology & Biology forum of the TONMO.com Message Board.
INTRODUCTION
The deep sea is the largest, yet least-explored habitat on Earth. Its seemingly adverse conditions include crushing pressure, total...
- Original publish date
- May 6, 2003
Just in time for Valentine's Day 2012, Dr. Roy Caldwell shared some astonishing photos of two mating A. aculeatus. Note that these images are very rare and the quality is high.
Photos may not be reused without permission
Sea of Love
An Abdopus aculeatus male perches on a rock keeping an eye...
- Contributing Authors
- Dr. Roy Caldwell, Tony Morelli
- Original publish date
- Feb 14, 2012
Architeuthis (Giant Squid) reproduction, with notes on basic anatomy and behavior
By Dr. Steve O'Shea
Last updated: 03/28/03
Note: Steve welcomes discussion in the Physiology & Biology forum.
Architeuthis (Fig. 1, left) is basically an eating and breeding machine. A look inside the cut-open...
- Original publish date
- Mar 28, 2003
By Richard Ross (Thales), 2005
Image 1: Adult Sepia bandensis 'begging' for food. Head/body length about 4 inches. Photo, Richard Ross
Originally published in AdavancedAquarist.com, republished here with permission from the author.
Why Cuttlesfish?
I may be biased. Ok, I am completely...
- Original publish date
- Jul 15, 2005
By Phil Eyden
Note: Phil welcomes discussion on this article in the Cephalopod Fossils forum.
Ammonites are extinct cephalopods and are among the most abundant and beautiful of all fossils. Although not as glamorous as Tyrannosaurus rex or as dramatic as Velociraptor, these extinct creatures...
- Original publish date
- Apr 29, 2003
by Colin Dunlop
Overview
One of the most common emails that I receive starts along the lines of, "I have seen an octopus for sale in a pet shop. What do I need to keep it properly?"
Here is a list of some information and equipment needed for an octopus aquarium with links to sites where the...
- Original publish date
- Sep 2, 2002
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