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AK Whitfield, MN Bruton (1989)
Some biological implications of reduced freshwater inflow into eastern Cape Estuaries: a preliminary assessmentS Afr J Sci, 85
R. Maree, A. Booth, A. Whitfield (2000)
Effect of water temperature on the biogeography of South African estuarine fishes associated with the subtropical/warm temperate subtraction zone
S. Blaber (1997)
Fish and fisheries of tropical estuaries
LD Ter Morshuizen, AK Whitfield (1994)
The distribution of littoral fish associated with eelgrass Zostera capensis in the Kariega estuary, a southern African system with a reversed salinity gradientS Afr J Mar Sci, 14
I. Potter, G. Hyndes, F. Baronie (1993)
The fish fauna of a seasonally closed Australian estuary. Is the prevalence of estuarine-spawning species high?Marine Biology, 116
L. Morshuizen, A. Whitfield (1994)
The distribution of littoral fish associated with eelgrass Zostera capensis beds in the Kariega Estuary, a southern African system with a reversed salinity gradientAfrican Journal of Marine Science, 14
S. Blaber (1979)
The biology of filter feeding teleosts in Lake St Lucia, ZululandJournal of Fish Biology, 15
RP Elst (1978)
Notes on the teleost fauna of the Kobole estuary, TranskeiS Afr J Wildl Res, 8
K. Curry-Lindahl, R. Jubb (1968)
Freshwater Fishes of Southern AfricaJournal of Wildlife Management, 32
T. Harrison (2002)
Preliminary assessment of the biogeography of fishes in South African estuariesMarine and Freshwater Research, 53
TD Harrison (1997)
A preliminary survey of coastal river systems on the South African west coast, Cape Columbine – Cape Point, with particular reference to the fish faunaTrans Roy Soc S Afr, 52
N. Strydom, A. Whitfield, T. Wooldridge (2003)
The role of estuarine type in characterizing early stage fish assemblages in warm temperate estuaries, South AfricaAfrican Zoology, 38
Gavin Young, I. Potter, G. Hyndes, S. Lestang (1997)
The ichthyofauna of an intermittently open estuary: Implications of bar breaching and low salinities on faunal compositionEstuarine Coastal and Shelf Science, 45
P. Vorwerk, A. Whitfield, P. Cowley, A. Paterson (2001)
A survey of selected Eastern Cape estuaries with particular reference to the ichthyofauna
J. Day (1981)
Estuarine ecology with particular reference to Southern Africa
P. Cowley, A. Whitfield, K. Bell (2001)
The Surf Zone Ichthyoplankton Adjacent to an Intermittently Open Estuary, with Evidence of Recruitment during Marine Overwash EventsEstuarine Coastal and Shelf Science, 52
SJM Blaber (1973)
Population size and mortality of juveniles of the marine teleost Rhabdosargus holubi in a closed estuaryMar Biol, 21
A. Whitfield, H. Kok (1992)
Recruitment of juvenile marine fishes into permanently open and seasonally open estuarine systems on the southern coast of South Africa
B. Bennett (1989)
A comparison of the fish communities in nearby permanently open, seasonally open and normally closed estuaries in the South-Western Cape, South AfricaAfrican Journal of Marine Science, 8
I. Potter, G. Hyndes (1994)
Composition of the fish fauna of a permanently open estuary on the southern coast of Australia, and comparisons with a nearby seasonally closed estuaryMarine Biology, 121
S. Griffiths (2001)
Factors Influencing Fish Composition in an Australian Intermittently Open Estuary. Is Stability Salinity-Dependent?Estuarine Coastal and Shelf Science, 52
H. Kok, A. Whitfield (1986)
The influence of open and closed mouth phases on the marine fish fauna of the Swartvlei estuarySouth African Journal of Zoology, 21
S. Griffiths, R. West (1999)
Preliminary assessment of shallow water fish in three small intermittently open estuaries in southeastern AustraliaFisheries Management and Ecology, 6
I. Potter, P. Claridge, G. Hyndes, K. Clarke (1997)
Seasonal, annual and regional variations in ichthyofaunal composition in the inner Severn Estuary and inner Bristol ChannelJournal of the Marine Biological Association of the United Kingdom, 77
L. Beckley (1984)
The ichthyofauna of the sundays estuary, South Africa, with particular reference to the juvenile marine componentEstuaries, 7
P. Vorwerk, A. Whitfield, P. Cowley, A. Paterson (2003)
The Influence of Selected Environmental Variables on Fish Assemblage Structure in a Range of Southeast African EstuariesEnvironmental Biology of Fishes, 66
T. Harrison (2002)
Ichthyofauna of South African estuaries in relation to the zoogeography of the region
N. Loneragan, I. Potter, R. Lenanton (1989)
Influence of site, season and year on contributions made by marine, estuarine, diadromous and freshwater species to the fish fauna of a temperate Australian estuaryMarine Biology, 103
T. Harrison (2004)
Physico-chemical characteristics of South African estuaries in relation to the zoogeography of the regionEstuarine Coastal and Shelf Science, 61
JFK Marais (1981)
Seasonal abundance, distribution and catch per unit effort using gill-nets, of fishes in the Sundays estuaryS Afr J Zool, 16
A. Whitfield, M. Bruton (1996)
EXTINCTION OF THE RIVER PIPEFISH SYNGNATHUS WATERMEYERI IN THE EASTERN CAPE PROVINCE, SOUTH AFRICASouth African Journal of Science, 92
E. Perkins, B. Neilson, Eugene Cronin (1983)
Estuaries and Nutrients.Journal of Ecology, 71
A. Whitfield (1992)
A CHARACTERIZATION OF SOUTHERN AFRICAN ESTUARINE SYSTEMSSouthern African Journal of Aquatic Sciences, 18
S. Blaber (1974)
The population structure and growth of juvenile Rhabdosargus holubi (Steindachner) (Teleostei: Sparidae) in a closed estuaryJournal of Fish Biology, 6
A. Whitfield (1999)
Biology and ecology of fishes in Southern African estuariesEstuaries, 22
N. Grange, A. Whitfield, C. Villiers, B. Allanson (2000)
The response of two South African east coast estuaries to altered river flow regimesAquatic Conservation-marine and Freshwater Ecosystems, 10
T. Harrison (1998)
A PRELIMINARY SURVEY OF THE COASTAL RIVER SYSTEMS OF FALSE BAY, SOUTH-WEST COAST OF SOUTH AFRICA, WITH PARTICULAR REFERENCE TO THE FISH FAUNATransactions of The Royal Society of South Africa, 53
J.F.K. Maraisand, D. Baird (1980)
Seasonal abundance, distribution and catch per unit effort of fishes in the Swartkops estuarySouth African Journal of Zoology, 15
S. Blaber (1973)
Population size and mortality of juveniles of the marine teleost Rhabdosargus holubi (Pisces: Sparidae) in a closed estuaryMarine Biology, 21
T. Harrison (1999)
A PRELIMINARY SURVEY OF THE ESTUARIES ON THE SOUTH COAST OF SOUTH AFRICA, CAPE AGULHAS—CAPE ST BLAIZE, MOSSEL BAY, WITH PARTICULAR REFERENCE TO THE FISH FAUNATransactions of The Royal Society of South Africa, 54
K. Dyer, R. Orth (1994)
Changes in fluxes in estuaries : implications from science to management
SP Griffiths (1998)
Diversity and distribution of fishes in an intermittently open coastal lagoon at Shellharbour, New South WalesWetlands (Australia), 18
BM Clark, BA Bennett, SJ Lamberth (1994)
A comparison of the ichthyofaunas of two estuaries and their adjacent surf zones, with an assessment of the effects of beach-seining on the nursery function of estuaries for fishS Afr J Mar Sci, 14
A. Whitfield (1995)
Threatened fishes of the world:Syngnathus watermeyeri Smith, 1963 (Syngnathidae)Environmental Biology of Fishes, 43
I. Potter, L. Beckley, A. Whitfield, R. Lenanton (1990)
Comparisons between the roles played by estuaries in the life cycles of fishes in temperate Western Australia and Southern AfricaEnvironmental Biology of Fishes, 28
BA Bennett (1989)
A comparison of the fish communities in nearby permanently open, seasonally open and normally closed estuaries in the south-western Cape, South AfricaS Afr J Mar Sci, 8
P. Cowley, A. Whitfield (2002)
Biomass and production estimates of a fish community in a small South African estuaryJournal of Fish Biology, 61
T. Harrison (1998)
A PRELIMINARY SURVEY OF COASTAL RIVER SYSTEMS ON THE SOUTH-WEST COAST OF SOUTH AFRICA, CAPE COLUMBINE—CAPE POINT, WITH PARTICULAR REFERENCE TO THE FISH FAUNATransactions of The Royal Society of South Africa, 52
M. Castillo-Rivera, J. Zavala-Hurtado, Rocío Zárate (2002)
Exploration of spatial and temporal patterns of fish diversity and composition in a tropical estuarine system of MexicoReviews in Fish Biology and Fisheries, 12
J. Marais (1981)
Seasonal abundance, distribution, and catch per unit effort using gill-nets, of fishes in the Sundays estuaryAfrican Zoology, 16
A. Whitfield, A. Paterson, A. Bok, H. Kok (1994)
A comparison of the ichthyofaunas in two permanently open eastern Cape estuariesSouth African Journal of Zoology, 29
AK Whitfield (1992b)
Juvenile fish recruitment over an estuarine sand barIchthos, 36
J. Marais (1983)
Fish abundance and distribution in the Gamtoos estuary with notes on the effect of floodsSouth African Journal of Zoology, 18
D. Pollard (1994)
A comparison of fish assemblages and fisheries in intermittently open and permanently open coastal lagoons on the south coast of New South Wales, South-Eastern AustraliaEstuaries, 17
R. Lenanton, I. Potter (1987)
Contribution of estuaries to commercial fisheries in temperate Western Australia and the concept of estuarine dependenceEstuaries, 10
T. Harrison (1999)
A PRELIMINARY SURVEY OF ESTUARIES ON THE SOUTH-WEST COAST OF SOUTH AFRICA, CAPE HANGKLIP—CAPE AGULHAS, WITH PARTICULAR REFERENCE TO THE FISH FAUNATransactions of The Royal Society of South Africa, 54
B. Bennett (1985)
A MASS MORTALITY OF FISH ASSOCIATED WITH LOW SALINITY CONDITIONS IN THE BOT RIVER ESTUARYTransactions of The Royal Society of South Africa, 45
NA Strydom, AK Whitfield, TH Wooldridge (2003)
The role of estuarine type in characterizing early stage fish assemblages in warm temperate estuariesS Afr J Zool, 38
B. Clark, B. Bennett, S. Lamberth (1994)
A comparison of the ichthyofauna of two estuaries and their adjacent surf zones, with an assessment of the effects of beach-seining on the nursery function of estuaries for fishAfrican Journal of Marine Science, 14
A. Whitfield (1994)
Abundance of larval and 0+ juvenile marine fishes in the lower reaches of three southern African estuaries with differing freshwater inputsMarine Ecology Progress Series, 105
A. Whitfield, S. Blaber (1979)
The distribution of the freshwater cichlid Sarotherodon mossambicus in estuarine systemsEnvironmental Biology of Fishes, 4
E. Hodgkin, R. Lenanton (1981)
Estuaries and Coastal Lagoons of South Western Australia
J. Lukey, A. Booth, P. Froneman (2006)
Fish population size and movement patterns in a small intermittently open South African estuaryEstuarine Coastal and Shelf Science, 67
P. Cowley, A. Whitfield (2001)
Ichthyofaunal characteristics of a typical temporarily open/closed estuary on the southeast coast of South Africa
T. Harrison (2003)
Biogeography and community structure of fishes in South African estuaries
Gavin Young, I. Potter (2002)
Influence of Exceptionally High Salinities, Marked Variations in Freshwater Discharge and Opening of Estuary Mouth on the Characteristics of the Ichthyofauna of a Normally-Closed EstuaryEstuarine Coastal and Shelf Science, 55
F. Neira, L. Beckley, A. Whitfield (1988)
Larval development of the Cape silverside, Atherina breviceps Cuv. and Val., 1835 (Teleostei, Atherinidae) from southern Africa
J. Desmond, D. Deutschman, J. Zedler (2002)
Spatial and temporal variation in estuarine fish and invertebrate assemblages: Analysis of an 11-year data setEstuaries, 25
PD Morant (1991)
The estuaries of False BayTrans Roy Soc S Afr, 47
The majority of estuaries along the coastline of southern Africa are termed temporarily open/closed estuaries (TOCEs) and are closed off from the sea for varying periods by a sandbar which forms at the mouth. It is therefore important to understand the processes occurring within TOCEs and their importance to fishes in order to make sound management recommendations. Estuaries along the coast of South Africa and their associated fish assemblages are biogeographically distinct and occur in either a subtropical, warm-temperate or cool-temperate zone. There are 125 TOCEs found within the cool-temperate and warm-temperate zones. Most fish species found in TOCEs are the juveniles of marine taxa that breed at sea. Permanently open estuaries generally have a higher diversity of species than TOCEs, but TOCEs still provide important nursery areas for many marine species and numerically often have a higher proportion of estuarine resident species. Important taxa in terms of abundance and biomass in warm-temperate TOCEs include the sparids Rhabdosargus holubi and Lithognathus lithognathus, several mugilid species, estuarine residents (particularly Gilchristella aestuaria and Atherina breviceps) and the freshwater cichlid Oreochromis mossambicus. The diversity of fishes in cool-temperate TOCEs is low when compared with warm-temperate systems and Liza richardsonii tends to dominate catches by number and mass in most systems. Several species recorded in TOCEs show clear longitudinal distribution trends. For example Atherina breviceps is generally more abundant in the lower reaches of estuaries. Mouth state, particularly the frequency, timing and duration of mouth opening plays a key role in determining species richness, composition, diversity and abundance in TOCEs. Mouth state is directly linked to freshwater input. Reduced river inflow leads to prolonged mouth closure and shorter open phases, which inhibits immigration and emigration of marine fish species between estuaries and the sea. Understanding of the effects of various processes occurring within these systems, particularly variation in freshwater input, on the biota of these important systems facilitates the development of informed management recommendations.
Reviews in Fish Biology and Fisheries – Springer Journals
Published: Apr 12, 2007
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