Kina | Sea Urchin Evechinus Chloroticus
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Kina | Sea urchin Evechinus chloroticus Outer shell & Aristotle’s lantern mouthpiece • Loves to eat seaweed • Lives in fear of large snapper jaws! Kina | Sea urchin Evechinus chloroticus Habitat Rocky shore to 60m deep. Diet PROBLEM Nocturnal grazer that feeds on seaweed and algae. A Kina populations are grinding mill, called an Aristotle’s lantern and made of increasing, this means five teeth, allows for chewing of tough plant material. they are going to eat lots Predators of seaweed that young Snapper, crayfish and other large fish. fish like to hide in. How do Human impact you think we are able to Humans have been harvesting them for hundreds of control this? years for food. Pipi Paphies australis Shell • Hides in the sand at the beach Pipi Paphies australis Habitat In the sand. May stick one side up out of sand. Diet QUESTION Filter feeds: sucks water into its shell and filters out The daily limit for pipi plankton to eat. collection is 150 per day, Predators although there is no size Fish, crustaceans, crabs, humans. limit. It is recommended Human impact only large individuals be Humans have been harvesting them for hundreds collected, why do you of years for food. think that is? Info Sometimes pipi bunch together into what is called a ‘bed”. Some pipi beds may have 1000-2000 individuals per square meter! Pāua | Abalone Haliotis iris Shell • Rocky on the outside, sparkly on the inside Pāua | Abalone Haliotis iris Habitat Lower rocky shore and found under ledges and boulders. Diet Grazes on seaweed and algae. DID YOU KNOW? Predators Many Māori carvings have Crabs, octopuses, sea stars and fish. pāua in eyes which gives Human impact them a lifelike appearance. Humans have been harvesting pāua for hundreds of years People sleeping as a food source. Their shells are also used as jewellery and underneath these carvings decorations. in a whare sometimes feel like they’re being looked Info over as they sleep Pāua use a radula, a ribbon-like structure studded with at night. hundreds of tiny, hard, sharp teeth, to eat tough seaweed and algae. It has been described as something between a cat’s tongue and a chainsaw. Kāunga | Hermit crab Paguridae spp. Exoskeletons • Living in the rock pools, I’ll eat anything! Kāunga | Hermit crab Paguridae spp. Habitat DID YOU KNOW? Live in empty shells in rock pools. When hermit crabs get Diet bigger, they need to They scavenge, hunt and filter feed. change shells. Some They’re not fussy! species line up in size Predators order with the largest Sharks, fish, squid, octopus. crab at the front. As the large crab inspects and Human impact moves into its new shell, Humans like to collect shells which hermit crabs need the second crab in line will to live in. Coastal pollution is so bad in some areas that take the larger crab’s old populations are dying out. Some hermit crabs resort to shell. This continues down living in plastic lids instead of shells. the line. Pūngorungoru | Finger sponge Raspailia spp. Whole dried specimen • The original kitchen sponge! Pūngorungoru | Finger sponge Raspailia spp. Habitat Found in open rock reef flats. DID YOU KNOW? Sponges are not plants; Diet they are classified as an Filters food from the seawater that flows through its animal without a brain or pores and channels. nervous system Predators QUESTION Sea slugs and turtles. Some sponges contain toxins and glass-like spicules to stop animals eating them. The holes and spaces inside a sponge can be Human impact protective spaces for Sea sponges are better at keeping water in than smaller animals. Are there the sponges in your kitchen. They are the original other species in the kete dishwashing tool! that can do this as well? Papatua | Chiton Syphorochiton spp. Shell • Like little shields on rocks! Papatua | Chiton Syphorochiton spp. Habitat DID YOU KNOW? Common under stones in the rocky shore. Even without eyes, chitons Diet manage to make their Grazes on algae that grow on rocks. way back to their ‘home’ Predators spot after grazing at night. Sea stars, crabs, fish and sometimes seagulls. Scientists don’t exactly know how they do this, but Human impact recent experiments suggest Climate change creates more storms than usual. they respond to magnetism Extra wave action may impact the way chitons cling because their metallic teeth onto rocks. leave traces of iron in rocks, therefore they have a trail to follow. Tipa | Scallop Pecten novaezelandiae Shell • Tipa flap their shells together to swim away from predators Tipa | Scallop Pecten novaezelandiae Habitat Muddy and sandy shores. QUESTION Diet Filter feeds on plankton that gets trapped by Most scallops are caught their sticky gills. by a fishing technique called dredging which Predators scoops out massive chunks Sea stars, crayfish, crabs and fishes. of sea floor. What effect do you think this might Human impact have on underwater A delicacy in fine dining meals. environments? Info Scallops are both male and female. They have two sets of reproductive organs: the white part is male and the orange is female. Tuatua Paphies subtriangulata Shell • Catch me if you can…I’d rather you didn’t Tuatua Paphies subtriangulata Habitat Buried in beaches with fine sand. Diet Filters seawater through gills to pick up food. DID YOU KNOW? To escape capture, tuatua Predators can burrow quite fast and Sea stars, snapper and some sea gulls. even squirt water at you! Human impact Tuatua are commonly harvested for kaimoana – but be aware of the limits in your area for collecting them. Pūpū terakihi | Paper nautilus Argonauta nodosus Brooding shell (3D printed) • Inside lives a small octopus! Pūpū terakihi | Paper nautilus Argonauta nodosus Habitat Floats on ocean surfaces. Diet DID YOU KNOW? Carnivorous. Captures prey with its tentacles, Just before Captain Cook’s then stabs it injecting poison. arrival in Aotearoa a mass Predators stranding of pūpū tarakihi Sharks, large fish, turtles, octopuses. occured on Tāmaki’s shores. Titahi, a seer Human impact from Ōrākei, prophesised In the early 1800s, French scientist Jeannette Villepreux- a ‘mighty wind’ from Power was the first person to experiment on paper nautilus’ the north causing the and while doing this she invented the modern aquarium. stranding which would Info eventually cause major The shell is also a floatation device. The animal pumps change to the Waitematā. water in and out to let it move up and down the water column. Tītī wainui | Fairy prion Pachyptila turtur Wing • Looks delicate, but is strong enough to dig big holes in the ground to live in Tītī wainui | Fairy prion Pachyptila turtur Habitat Live on offshore islands. Excavates burrows in the ground to nest. QUESTION Diet Tītī wainui are considered Shallow dives into the water to scoop out krill and a keystone species. small animals. Their burrows create safe, sheltered and Predators humid homes for lizards, Used to live on the mainland until mammalian predators tuatara and insects. Their (cats, rats and stoats) were introduced by humans. droppings also create Natural predators include other birds such as skuas fertile rich soil for plants. and harriers. Can you think of any other Info keystone species in the Largest breeding colony is on Stephens island in the box, or in Aotearoa? Cook Strait where tuatara eat up to 25% of their eggs. Tītī | Short tailed shearwater Puffinus tenuirostris Wing • Perfect fliers but clumsy walkers (more like waddlers) Tītī | Short tailed shearwater Puffinus tenuirostris Habitat They migrate all year round. They can be found flying through NZ from October – January, and breed in Australia. Sometimes they travel 15 000 km each way to Alaska and back. QUESTION Diet Consider an animal that Dive up to 10m in the water to catch fish. Will feed in travels so far for part of its large flocks or with dolphins when around schooling fish. life and the human-made Human impact obstacles it encounters Although there are massive populations, they remain along the way. What would vulnerable. Habitat destruction, introduced predators you do to prevent any and bycatch are major threats to shearwater. disruption to this animals journey? Info Shearwaters are excellent swimmers and perfect oceanic gliders, but with legs placed far back on their body they waddle very clumsily on land. Mako shark Isurus oxyrinchus Teeth • The fastest swimming shark! Mako shark Isurus oxyrinchus Habitat PŪRĀKAU Found worldwide temperate to tropical waters including NZ. A taniwha named Te Mokai A Kahu lived around the Diet Wai Te Mata rock, in the These sharks are fast hunters. They can eat squid, Waitematā Harbour. Once swordfish, tuna and many other prey. each year he swam around Predators his rock as a signal that the Humans used to catch mako sharks for food. They are shark-fishing season could now threatened so its not recommended to fish for them. begin. In a battle, Ngā Puhi from the north damaged his Human impact mauri (life force). Te Mokai A For Māori, shark fishing was a summertime activity. In the Kahu was never seen again, Manukau, inland Māori from Waikato would arrive by canoe but some say it lurks in the at Awhitu to spend the summer catching and drying great deep channel off Kauri Point, quantities of shark. Flesh, oil and eggs were a delicacy where sharks can still be eaten raw. caught. Maki, kera wēra | Orca whale Orcinus orca Tooth (3D printed) • Family is important for this mammal Maki, kera wēra | Orca whale Orcinus orca Habitat Open ocean & coastal waters. Often pass through Auckland when travelling. Diet QUESTION Fish and squid, also known to attack sharks. Orca live all over the planet Predators and, just like humans, None, orca are apex predators.