Ohiwa Harbor
| Ohiwa Harbor | ||
| Geographical location | ||
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| Coordinates | 38 ° 0 ′ S , 177 ° 8 ′ E | |
| Region ISO | NZ-BOP | |
| country | New Zealand | |
| region | Bay of Plenty | |
| Sea access | Pacific Ocean | |
| Data on the natural harbor | ||
| Port entrance | 625 m wide | |
| length | around 9.36 km | |
| width | max 3.5 km | |
| surface | 26.4 km 2 | |
| Coastline | around 56 km | |
| Catchment area | 171 km 2 | |
| places | Ōhope , Port Ōhope , Kutarere | |
| Tributaries | Nukuhou River and 16 larger streams (brooks) | |
| Islands | Ohakana Island , Uretara Island , Whangakopikopiko Island , Motuoto Island , Hokianga Island , Pataua Island , various small islands, sandbanks and siltations | |
| Jetty | Port Ōhope and near Kutarere | |
| Photography of the natural harbor | ||
 Riverside vegetation at Ohiwa Harbor |
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Ohiwa Harbor is a natural harbor in the Whakatāne District of the Bay of Plenty region on the North Island of New Zealand .
geography
The 26.4 km² natural harbor is located on the coast of the Bay of Plenty with access to the Pacific Ocean . The body of water has an east-west extension of 9.36 km, reaches a maximum of 6.33 km inland and measures around 3.5 km at its widest point. The coastline of the widely ramified natural harbor with several inlets extends over a length of around 56 km.
The most important tributaries come via the Nukuhou River and 16 other noteworthy streams , which together drain an area of 171 km² with a total length of the rivers of around 171.4 km. The port area is partly heavily silted up and interspersed with several islands, which are listed from west to east: Ohakana Island , Uretara Island , Whangakopikopiko Island , Motuoto Island , Hokianga Island , Pataua Island . At low tide around 83% of the port area falls dry.
The Ohiwa Harbor is by some 6.7 km long spit of land on which the places Ohope , Port Ohope , separated are from the sea. What remains is an approximately 625 m wide access to the port, which is located in the northeastern part of the water. The natural harbor can be reached via the New Zealand State Highway 2 , which runs from Whakatāne towards Opotiki and passes southeast of the harbor.
geology
The base rock of the area of the natural harbor consists mainly of greywacke and comes from the late Jurassic to late Cretaceous . The overlying deposits come from the Pleistocene and pumice and volcanic ash from the volcanic eruptions in the area around Rotorua and Taupo .
Flora and fauna
Come into the shallow waters of the natural harbor preferably three bivalve species, Cockle (Austro Venus stuchburyi) Pipi (Paphies australis) and oysters (Tiostrea chilensis lutria).
Since the mangroves spread strongly in the water over many decades and thus impaired the diversity of the vegetation, the area of around 11.7 hectares was cleared of the mangroves in the years 2011 to 2013.
See also
literature
- Heather MacKenzie : State of the Ohiwa Harbor and Catchment . Ed .: Bay of Plenty Regional Council (= Environmental Publication . Volume 2013/07 ). April 2013, ISSN 1175-9372 (English, online [PDF; 3.8 MB ; accessed on January 25, 2018]).
Web links
Individual evidence
- ^ A b c MacKenzie : State of the Ohiwa Harbor and Catchment . 2013, p. 1 .
- ↑ a b c d Topo250 maps . Land Information New Zealand , accessed January 25, 2018 .
- ↑ a b Coordinates and longitudes were partly made using Google Earth Version 7.1.8.3036 on January 25, 2018.
- ^ The natural environment . Bay of Plenty Regional Council , accessed January 25, 2018 .
- ^ MacKenzie : State of the Ohiwa Harbor and Catchment . 2013, p. 17 .
- ^ MacKenzie : State of the Ohiwa Harbor and Catchment . 2013, p. 31 f .