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Holdfasts of D. antarctica are often inhabited by a diverse array of epifaunal invertebrates, many of which burrow into and graze on the kelp. [25] In New Zealand, epifaunal species include the crustaceans Parawaldeckia kidderi, P. karaka [25] and Limnoria stephenseni, and the molluscs Cantharidus roseus, Onchidella marginata, [26] Onithochiton ...
Species in the genus Durvillaea are also sometimes called "bull kelp", but this is just a shortening of the common name southern bull kelp. Durvillaea is a genus in the order Fucales and, though superficially similar in appearance, is not a true kelp (all of which are in the order Laminariales ).
Nereocystis (Greek, 'mermaid's bladder') is a monotypic genus of subtidal kelp containing the species Nereocystis luetkeana. [1] Some English names include edible kelp, bull kelp, bullwhip kelp, ribbon kelp, bladder wrack, and variations of these names. [2]
[8] [9] Specimens of D. antarctica have been found to float for up to 210 days, during which time high wind speeds transport kelp rafts up to 10,000 km. [8] [9] Environmental factors such as temperature, solar radiation and surface winds (all of which vary with latitude) affect buoyancy of southern bull kelp rafts and their rate of travel. [8]
Blades from southern bull kelp (rimurapa in Māori) [1] [2] [3] species such as Durvillaea antarctica and D. poha (named after the pōhā) [4] [5] were used to construct the bags. [1] The kelp blades have a 'honeycomb' structure, [ 6 ] [ 7 ] which allows them to be split open, hollowed out (pōhā hau) and inflated into containers.
Critter of the Week is a regular Radio New Zealand broadcast in which Nicola Toki (originally of DOC, now Forest & Bird) and the host Jesse Mulligan talk about New Zealand species both endangered and neglected. It has been running since 2015, and has covered over 300 different species.
The species can be confused with Durvillaea amatheiae, which has an overlapping geographic distribution. [1] [2] D. potatorum has a shorter, wider stipe with more limited lateral blade development, whereas D. amatheiae has a shorter, narrow stipe and typically prolific lateral blade development.
Both are official, though in most circumstances "God Defend New Zealand" is used as the anthem. "God Save the King" is generally used only on regal and viceregal occasions. [5] National colours: The national colours of New Zealand orders are black, white or silver, and red ochre. New Zealand Orders have used these colours since 1975. [6]
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