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Definition
| oarfish 11m (up to 40ft, 600 lbs) found all over the world eat: krill, small fishes, squid fisherman account = Gloucester, MA |
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Term
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Definition
| bathynomous giganteus lives in deep ocean sz: 1 ft, 4 lbs eyes look like mirrors example of deep sea gigantism/abyssal gigantism |
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Term
| deep sea gigantism/abyssal gigantism |
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Definition
| tendency for species of crustaceans, invertebrates and other deep-sea dwelling animals to display a larger size than their shallow-water counterparts |
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Term
| reasons for deep sea gigantism |
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Definition
1. adaptation for scarcer food resources (delay sexual maturity, resulting in greater sz)
2. greater pressure: to withstand pressure they need to be larger
3. oxygen |
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Term
Japanese spider crab
[image] |
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Definition
| largest known anthropod sz: leg span 4m, body size 37cm, 20kg lives in deep ocean (pacific) eats: dead animals/shellfish life expectancy 100 yrs |
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Term
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Definition
| dis. 1555 Olaus Magnus nemertean smooth body, no segments has proboscis pH 3.5 absorb oxygen through skin (makes its body flat to absorb more oxygen) example: giant antartic marine worm |
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Term
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Definition
| a phylum of invertebrate animals also known as ribbon worms or proboscis worms |
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Term
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Definition
| gross tongue thing that can extend and retract that both stuns and kills prey so sea worms can eat things |
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Definition
| segmented worms live anywhere common deep ocean = giant |
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Term
| most size of common squids |
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Definition
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Term
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Definition
| mollusk internal shell (pen) mantle funnel foot divided into tentacles chromatophores |
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Term
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Definition
| highly muscular forces water from the cavity through the siphon |
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Term
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Definition
| pigment-containing and light reflecting cells used for communication: different sides can do different messages ex) Caribbean reef squid |
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Definition
| phylum: mollusca class: cephalopoda genus: arciteuthis Females larger than males suction cups have jagged teeth beak |
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Term
| sperm whales can't digest which part of the squid |
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Definition
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Term
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Definition
| largest invertebrates known 12-14m antarctic or giant cranch squid spinning hooks on suction cups |
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Term
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Definition
characterized by:
bilateral body symmetry
a prominent head
a set of arms or tentacles ex. tongue (muscular hydrostats)
- bobtail squid, chambered nautilus, cuttlefish (all have shells
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Term
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Definition
- eight arms
- usually bearing suction cups
- unlike most other cephalopods have almost entirely soft bodies with no internal skeleton
- beak (only hard part of the body) which allows them to squeeze through narrow slits between underwater rocks to get away from predators
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Term
| most intelligent invertebrate? |
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Definition
cephalopod class of mollusks, particularly cuttefish, squid, and octopuses
- also an important example of advanced cognitive evolution in animals
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Term
| octupuses can be readily trained to... |
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Definition
distinguish between different shapes and patterns
can play
*often break out of their saquariums |
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Term
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Definition
| a trait essential found in cephalopods for tool use and manipulation |
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Term
the giant pacific octopus or northern pacific giant octopus weight
[image] |
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Definition
large- up to 165 pounds (reported up to 600lbs)
most are ~30 lbs |
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Term
giant pacific octopus diet
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Definition
| shrimp, crabs, scallop, abalone, clams, and fish |
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