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Who We Are

Knysna Basin Project is a scientifically based non-profit organisation focused on continued research in the Knysna Basin >>

Community Engagement

Knysna Basin Project aims to create and stimulate public and learner awareness and appreciation of the estuary >>

Public Involvement

Be part of an organization dedicated to the wellbeing of the Knysna Estuary, become a member of the Knysna Basin Project >>

1. A very good synthesis of a number of earlier studies in the Basin is given in:

Russell I A, Randall R M , Kruger N 2009. Garden Route National Park, Knysna Coastal Section: State of Knowledge. South African National Parks. Scientific Services; Sedgefield.
Click here to download report

2. Knysna Estuary
Click here to download slideshow

3. Knysna Estuary – Maintaining a Balance

4.Hydrogeology of Leisure Isle
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5.The Environmental Sensitivity of Leisure Isle
Click here to download document

6. On eelgrass, Leisure Isle Ratepayers Association
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Some of the scientific papers arising from the work on the Project:

 

Allanson B. R. ,L.R.D. Human & L. Claassens 2016. Observation on the distribution and abundance of a greed tide along an intertidal shore, Knysna Estuary. South Africa Journal of Botany.  http://dx.doi.org/10.1016/j.sajb.2016.02.197.

L.R.D.Human, J.B.Adams & B.R.Allanson. 2016. Insights into the cause of an Ulva lactuca Linnaeus bloom in the Knysna Estuary. South Africa Journal of Botany. http://dx.doi.org/10.1016/j.sajb.2016.0.016

Allanson B R, Smith F and Smith P 2014. The macrobenthos of artificial rocky shores in the Knysna Estaury. Transactions of the Royal Society of South Africa, 69: 19 – 33.

Allanson B R & Fearon J J 2011. Growth rate of juvenile Siphonaria compressa (Gastropoda:Pulmonata) Invertebrate Reproduction & Development DOI: 1080/07924259.2011.646447.
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Allanson B R & Msizi S C 2010. Reproduction and growth of the endangered Siphonariid limpet Siphonaria compressa (Pulmonatea: Basommatophora). Invertebrate Reproduction and Development 54: 151 -161.
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Allanson B R & Herbert D G 2005. A newly discovered population of the critically endangered false limpet Siphonaria compressa Allanson 1958 (Pulmonata: Siphonariidae) with observations on its reproductive biology. South African Journal of Scence 101:95 -97.

Barnes, R.S.K. 2016. Spatial homogeneity of benthic macrofaunal biodiversity across small spatial scales. Marine Environmental Research, 122, 148-157.

Barnes, R.S.K. & Hendy, I.W.  2015a.  Functional uniformity underlies the common spatial structure of macrofaunal assemblages in intertidal seagrass beds. Biological Journal of the Linnean Society, 115, 114-126.

Barnes R S K &  Hendy I W  2015b.  Seagrass-associated macrobenthic functional diversity and functional structure along an estuarine gradient. Estuarine, Coastal & Shelf Science, 164, 233-243.

Barnes R S K & Hendy I W 2015.  Functional uniformity underlies the common spatial structure of macrofaunal assemblages in intertidal seagrass beds. Biological Journal of the Linnean Society, 115, 114-126.

Barnes R S K and Barnes M K S 2014. Spatial uniformity of biodiversity is inevitable if the available species are distributed independently of each other. Marine Ecology Progress Series, 516: 263-266.

Barnes R S K & Barnes M K S 2014. Biodiversity differentials between the numerically-dominant macrobenthos of seagrass and adjacent unvegetated sand in the absence of sandflat bioturbation. Marine Environmental Research, 99, 34-43.


 

Barnes R S K 2013. Spatial stability of macrobenthic seagrass biodiversity. Marine Ecology Progress Series, 493, 127-139.

Barnes R S K 2013. Distribution patterns of macrobenthic biodiversity in the intertidal seagrass beds of an estuarine system, and their conservation significance. Biodiversity and Conservation, 22, 357 - 372.

Barnes R S K & Ellwood M  2012. Spatial variation in the macrobenthic assemblages of intertidal seagrass along the long axis of an estuary. Estuarine, Coastal & Shelf Science, 112, 173 - 182.

Barnes R S K & Ellwood M D F 2011. The significance of shore height in the intertidal macrobenthis seagrass ecology and conservation. Aquatic Conservation: Marine and Freshwater Ecosystems. 21: 614 – 624. (DOI10.1002/aqc.1234)
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Barnes R S K 2010. Spatial variation in abundance and diversity of the smaller surface and near-surface eelgrass-associated intertidal macrobenthos within a warm-temperate estuarine bay in the Garden Route National Park. Aquatic Conservation: Marine and Freshwater Ecosystems. 20: 762 – 772 (DOI: 10.1002/aqc.1152}.
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Barnes R S K 2004 The distribution and habitat in the Knysna Estuary of the endemic South African mud snail, Hydrobia knysnaensis and the influence of intra-specfific competition and ambient salinity on its abundance. African Journal of Aquatic Science 29: 205 – 211
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Claassens, L. 2016. An artificial water body provides habitat for an endangered estuarine seahorse species.(2016). Estuarine, Coastal and Shelf Science. http://dx.doi.org/10.1016/j.ecss.2016.06.011

Hodgson A N, Booth A J, David-Engelbrecht V & Henninger T O 2014. Some life-history parameters of the non-native amphipod Platorchestia platensis (Talitridae) in a warm temperate South African estuary. Transactions of the Royal Society of South Africa. 69: 97-106.

Hodgson A N & Dickens J 2012. Activity of the mangrove snail Cerithidea decollata (Gastropoda: Potamididae) in a warm temperate South African estuary. Estuarine and Coastal Shelf Science. 109: 98-106.

Hodgson A N, Allanson B R & Cretchley R 2000. An estimation of the standing stock and population structure of Upogebia africana (Crustacea:Thalassinidae) in the Knysna Estuary. Transactions of the Royal Society of South Africa 55: 187 – 196.

Lockyear J F, Hecht T, Kaiser H and Teske P R (2006).The distribution and abundance of the endangered Knysna seahorse Hippocampus capensis (Pisces:Syngnathidae) in South Africa estuaries. African Journal of Aquatic Science, 31 275 – 283.
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Pinchuck, S.A., Allanson, B.R.and Hodgson, A.N. 2015. Evolutionary retention of defensive lateral pedal glands in the smallest siphonariid limpet (Gastropoda: Pulmonata). African Zoology. 50 (4): 327-330.

Pinchuck S A, Allanson B R and Hodgson A N 2015. Evolutionary retention of defensive lateral pedal glands in the smallest siphonariid limpet (Gastropoda: Pulmonata). African Zoology. 50 (4): 327-330.

Pollard, M & Hodgson, A.N. 2016. Mytilus galloprovincialis (Mollusca: Bivalvia) in a warm-temperate South Africa estuarine embayment. African Journal of Aquatic Science 41: 57-65.

Pollard M & Hodgson A N 2016. Mytilus galloprovincialis (Mollusca: Bivalvia) in a warm-temperate South Africa estuarine embayment. African Journal of Aquatic Science 41: 57-65.

Teske P R, Cherry M I and Matthee C A (2003). The population genetics of the endangered Knysna seahorse, Hippocampus capensis. Molecular Biology 12, 1703 -1715. doi: 10.104/j.1365-294x.2003.0152.x

Donors

Thesen Island Home Owners Association Barloworld Rhodes University
Knysna Marathon Club