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Octopuses : clever ocean creatures
\"Did you know that octopuses are among the most intelligent creatures on earth? Nature's children series provides young readers (Ages 8-10) with fascinating information about the planet's most incredible wildlife species. Each title offers a complete picture of the animal- from birth to adulthood- and describes its place in our world, including how humans impact it and its environment.\"--From https://www.bookdepository.com.
Book
Octopuses
\"This search-and-find book invites young readers to look for new vocabulary words and pictures while giving simple facts about an octopus's ocean habitat, body parts, and behaviors\"-- Provided by publisher.
Book
Study of mechanisms and income differences of octopus fishermen on the Bhanto Bhenta’s local wisdom application in small islands areas
Bhenta-bhanto is local wisdom in catching octopus by fishermen from small islands in the Wakatobi Archipelago. This study aims to explain the mechanism of the bhenta-bhanto’ s local wisdom and to find out the differences in fisherman income before and after the local wisdom is applied. The research occurred in Darawa Village, South Kaledupa District, Wakatobi Regency, Southeast Sulawesi, Indonesia. The research was conducted in March-December 2021. Research data were collected through observation, interviews, and literature study. Data were analyzed qualitatively and quantitatively using income analysis and Paired Sample T-Test. Based on the results of this study, it is known that the bhenta-bhanto is local wisdom in the form of an open and closed system for octopus fishing areas. The paired sample T-Test analysis shows differences in the income of octopus fishermen when the local wisdom of bhenta-bhanto is applied and when the local wisdom is not.
Journal Article
Discover octopuses
\"This Level 3 guided reader introduces basic facts about octopuses, including their physical characteristics, diet, and habitat. Simple callouts ask the student to think in new ways, supporting inquiry-based reading. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words-- Provided by publisher.
Book
Supply chain analysis of Octopus cyanea in Simeulue regency: a case study of production value and contribution of PiSiSi MPA
Octopus is a fishery commodity that is the target catch of fishermen in Simeulue Regency because of its very high price. This study aims to identify the supply chain, calculate the value of fishery production and the percentage of octopus ( Octopus Cyanea ) production in the PiSiSi Simeulue MPAs. This research was conducted in March-April 2023. The research method used was interviews with purposive sampling techniques. Based on the results of the analysis, it was found that the value of production generated from buyers (collectors) was IDR 34,192,104,976 with a total weight of 440.56 tons. The contribution of PiSiSi KKP to the production value of Simeulue Octopus is 9.83%. Based on this research the octopus supply chain starts with the catch of fishermen who are sold to collectors and then sold again to buyers in Sinabang and sold locally and domestically to North Sumatra and Java Island to be processed and then exported to Asia, Europe and America.
Journal Article
Octopuses
\"A basic exploration of the appearance, behavior, and habitat of octopuses, the eight-armed ocean creatures. Also included is a history of the belief that octopuses were sea monsters.\"-- Provided by publisher.
Book
Octopuses
\"Learn more about octopuses, how they use their cleverness to survive, and how they are astonishing scientists with their surprising smarts.\"-- Publisher's website.
Book
A wet-tolerant adhesive patch inspired by protuberances in suction cups of octopi
The suction cups found in octopus tentacles are the inspiration for a synthetic adhesive that functions well in dry and wet conditions and is resistant to chemical contamination.
Octopus-inspired sticky patch
Adhesives fall broadly into two categories, working either through chemical bonding or attraction at the interface, or through mechanical interlocking to ensure that surfaces stick together. Finding an adhesive in either of these categories that works under dry conditions and when immersed in liquids, and isn't readily contaminated, is an ongoing challenge. Changhyun Pang and colleagues have taken inspiration from the shape of octopus suckers to develop and fabricate a textured polymer patch that adheres through mechanical deformation. The patch displays good adhesive properties in various media, yet is resistant to chemical contamination.
Adhesion strategies that rely on mechanical interlocking or molecular attractions between surfaces can suffer when coming into contact with liquids
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. Thus far, artificial wet and dry adhesives have included hierarchical mushroom-shaped or porous structures that allow suction or capillarity
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,
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, supramolecular structures comprising nanoparticles
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, and chemistry-based attractants that use various protein polyelectrolytes
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. However, it is challenging to develop adhesives that are simple to make and also perform well—and repeatedly—under both wet and dry conditions, while avoiding non-chemical contamination on the adhered surfaces
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. Here we present an artificial, biologically inspired, reversible wet/dry adhesion system that is based on the dome-like protuberances found in the suction cups of octopi. To mimic the architecture of these protuberances
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, we use a simple, solution-based, air-trap technique that involves fabricating a patterned structure as a polymeric master, and using it to produce a reversed architecture, without any sophisticated chemical syntheses or surface modifications. The micrometre-scale domes in our artificial adhesive enhance the suction stress. This octopus-inspired system exhibits strong, reversible, highly repeatable adhesion to silicon wafers, glass, and rough skin surfaces under various conditions (dry, moist, under water and under oil). To demonstrate a potential application, we also used our adhesive to transport a large silicon wafer in air and under water without any resulting surface contamination.
Journal Article