Robberg Nature Reserve and Marine Protected Area

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Robberg Marine Protected Area
Robberg Nature Reserve and Marine Protected Area
Robberg MPA location
Location Robberg Peninsula, South Africa
Nearest city Plettenberg Bay
Coordinates 34°6.275′S23°24.134′E / 34.104583°S 23.402233°E / -34.104583; 23.402233
Area42 km2 (16 sq mi)
Established1998
Governing bodyCapeNature
South Africa relief location map.svg
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Robberg Nature Reserve and Marine Protected Area (South Africa)
Robberg Peninsula from the south South Africa Gardenroute Plettenberg Bay.jpg
Robberg Peninsula from the south
Robberg Nature Reserve and Marine Protected Area signboard Robberg Nature Reserve, Plettenberg Bay - 53147416700.jpg
Robberg Nature Reserve and Marine Protected Area signboard

The Robberg Marine Protected Area is an inshore conservation region in the territorial waters of South Africa, near Plettenberg Bay in the Western Cape province.

Contents

History

The Robberg Marine Protected Area was established on 2 September 1998 as a Marine Protected Area by Proclamation in Government Notice No. 18 of 1998, and was proclaimed by the Minister of Environmental Affairs and Tourism, Mohammed Valli Moosa, in Government Gazette No. 21948 of 29 December 2000 according to section 43 of the Marine Living Resources Act, 18 of 1998. [1] [2]

Purpose

A marine protected area is defined by the IUCN as "A clearly defined geographical space, recognised, dedicated and managed, through legal or other effective means, to achieve the long-term conservation of nature with associated ecosystem services and cultural values". [3]

Extent

About 12.9 km of coastline comprising 1.85 km of sandy shores along Robberg beach and 11.05 km on the Robberg peninsula, [4] and 42 km2 of ocean is protected by the MPA. [1]

Boundaries

The boundaries are: [2]

Zonation

Robberg Nature Reserve and Marine Protected Area
Marine protected areas of South Africa{{Cite journal|title=MPA Declarations |issue=10177 |journal=Regulation Gazette No. 42478 |volume=647 |date=23 May 2019 |url=https://cer.org.za/wp-content/uploads/2019/05/MPA-declarations.pdf |publisher=Government Printer |location=Pretoria }}{{Cite web |title=Protected Areas Register |url=https://dffeportal.environment.gov.za/portal/apps/webappviewer/index.html?id=7e27f116dd194c1f9d446dacc76fe483 |website=dffeportal.environment.gov.za |access-date=10 July 2022}}

The entire MPA is a controlled area.

Management

The marine protected areas of South Africa are the responsibility of the national government, which has management agreements with a variety of MPA management authorities, in this case, CapeNature, which manages the MPA with funding from the SA Government through the Department of Environmental Affairs (DEA). [3] [1]

The Department of Agriculture, Forestry and Fisheries is responsible for issuing permits, quotas and law enforcement. [5]

Marine ecoregions of the South African Exclusive Economic Zone: Robberg Marine Protected Area is in the Agulhas ecoregion. Ecoregions of SA EEZ.png
Marine ecoregions of the South African Exclusive Economic Zone: Robberg Marine Protected Area is in the Agulhas ecoregion.

The MPA is in the warm temperate Agulhas ecoregion to the east of Cape Point which extends eastwards to the Mbashe River. There are a large proportion of species endemic to South Africa along this coastline. [6] [7]

Four major habitats exist in the sea in this region, distinguished by the nature of the substrate. The substrate, or base material, is important in that it provides a base to which an organism can anchor itself, which is vitally important for those organisms which need to stay in one particular kind of place. Rocky shores and reefs provide a firm fixed substrate for the attachment of plants and animals. Some of these may have kelp forests, which reduce the effect of waves and provide food and shelter for an extended range of organisms. Sandy beaches and bottoms are a relatively unstable substrate and cannot anchor kelp or many of the other benthic organisms. Finally there is open water, above the substrate and clear of the kelp forest, where the organisms must drift or swim. Mixed habitats are also frequently found, which are a combination of those mentioned above. [8] There are no significant estuarine habitats in the MPA.

Rocky shores and reefs There are rocky reefs and mixed rocky and sandy bottoms. For many marine organisms the substrate is another type of marine organism, and it is common for several layers to co-exist. Examples of this are red bait pods, which are usually encrusted with sponges, ascidians, bryozoans, anemones, and gastropods, and abalone, which are usually covered by similar seaweeds to those found on the surrounding rocks, usually with a variety of other organisms living on the seaweeds. [8] :Ch.2

The type of rock of the reef is of some importance, as it influences the range of possibilities for the local topography, which in turn influences the range of habitats provided, and therefore the diversity of inhabitants. Sandstone and other sedimentary rocks erode and weather very differently, and depending on the direction of dip and strike, and steepness of the dip, may produce reefs which are relatively flat to very high profile and full of small crevices. These features may be at varying angles to the shoreline and wave fronts. There are fewer large holes, tunnels and crevices in sandstone reefs, but often many deep but low near-horizontal crevices.


Sandy beaches and bottoms (including shelly, pebble and gravel bottoms) Sandy bottoms at first glance appear to be fairly barren areas, as they lack the stability to support many of the spectacular reef based species, and the variety of large organisms is relatively low. The sand is continually being moved around by wave action, to a greater or lesser degree depending on weather conditions and exposure of the area. This means that sessile organisms must be specifically adapted to areas of relatively loose substrate to thrive in them, and the variety of species found on a sandy or gravel bottom will depend on all these factors. Sandy bottoms have one important compensation for their instability, animals can burrow into the sand and move up and down within its layers, which can provide feeding opportunities and protection from predation. Other species can dig themselves holes in which to shelter, or may feed by filtering water drawn through the tunnel, or by extending body parts adapted to this function into the water above the sand. [8] :Ch.3

The open sea The pelagic water column is the major part of the living space at sea. This is the water between the surface and the top of the benthic zone, where living organisms swim, float or drift, and the food chain starts with phytoplankton, the mostly microscopic photosynthetic organisms that convert the energy of sunlight into organic material which feeds nearly everything else, directly or indirectly. In temperate seas there are distinct seasonal cycles of phytoplankton growth, based on the available nutrients and the available sunlight. Either can be a limiting factor. Phytoplankton tend to thrive where there is plenty of light, and they themselves are a major factor in restricting light penetration to greater depths, so the photosynthetic zone tends to be shallower in areas of high productivity. [8] :Ch.6 Zooplankton feed on the phytoplankton, and are in turn eaten by larger animals. The larger pelagic animals are generally faster moving and more mobile, giving them the option of changing depth to feed or to avoid predation, and to move to other places in search of a better food supply.

Animals

Marine mammals:

Birds:

Marine reptiles:

Fish:

Endemism

The MPA is in the warm temperate Agulhas ecoregion to the east of Cape Point which extends eastwards to the Mbashe River. There are a large proportion of species endemic to South Africa along this coastline. [6] [7]

See also

Climate of South Africa

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References

  1. 1 2 3 4 5 "Robberg". World Wildlife Fund. Retrieved 7 February 2019.
  2. 1 2 Declaration of areas as Marine Protected Areas: Government Notice R1429 in Government Gazette 21948 (PDF). 29 December 2000. Retrieved 19 January 2019 via Centre for Environmental Rights.
  3. 1 2 "Marine Protected Areas". World Wildlife Fund. Retrieved 24 May 2018.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Concept Document:Re-zoning within the Robberg Marine Protected Area (MPA) in the interests of biodiversity protection and the value of the MPA (PDF) (Report). 2017.
  5. "Marine Protected Area" . Retrieved 26 May 2018.
  6. 1 2 Jones, Georgina (2008). A field guide to the marine animals of the Cape Peninsula. Cape Town: SURG. ISBN   978-0-620-41639-9.
  7. 1 2 Sink, K.; Harris, J.; Lombard, A. (October 2004). Appendix 1. South African marine bioregions (PDF). South African National Spatial Biodiversity Assessment 2004: Technical Report Vol. 4 Marine Component DRAFT (Report). pp. 97–109.
  8. 1 2 3 4 Branch, G.M.; Branch, M.L. (1985). The Living Shores of Southern Africa (3rd impression ed.). Cape Town: C. Struik. ISBN   0 86977 115 9.