Status of the estuarine fish fauna in the St Lucia Estuarine System, South Africa, after 30 months of mouth closure

2006 ◽  
Vol 31 (1) ◽  
pp. 71-81 ◽  
Author(s):  
Digby Cyrus ◽  
Leon Vivier
Keyword(s):  
South Africa ◽  
Fish Fauna ◽  
Estuarine Fish ◽  
Estuarine System

scholarly journals Comparative Analysis of Distribution of Intertidal Fish Assemblages in Different Estuarine Systems on Northern Coast of Brazil

2017 ◽  
Vol 10 (2) ◽  
pp. 26 ◽  
Author(s):  
Milton Goncalves Silva Junior ◽  
Antonio Carlos Leal Castro ◽  
Ulrich Saint-Paul
Keyword(s):  
Comparative Analysis ◽  
Fish Assemblages ◽  
Coastal Region ◽  
Fish Fauna ◽  
Estuarine Fish ◽  
Northern Coast ◽  
Tidal Creeks ◽  
Estuarine Systems ◽  
Using Data ◽  
High Dynamics

The northern coast of Brazil has more than 30 estuaries distributed along 650 km of coastline. These conditions favor the presence of relatively large fish communities in estuarine environments, but published information on the fish fauna in tidal creeks in northern Brazil is only available for some mangrove systems, and comparative studies between fish estuarine communities in different tidal creeks are less common. The choice of the study area was based on the fact that it has been poorly investigated with regard to estuarine fish fauna in comparison in mangrove tidal creeks using the same fishing gear. The objective of the present study was to compare the composition of the relative biomass of taxonomic, functional and ecological guilds of fish assemblages occurring in estuarine systems along the northern coast of Brazil. The study area of the present comparative analysis extended from the southeastern edge of the Marajoara Gulf to the western edge of the Maranhense Gulf. A comparative analysis among different estuarine systems was performed using data from other studies. The abundance of juveniles was greater in the Caeté, Curuçá and Cururuca estuaries than other estuaries. Cluster analysis separated the estuaries into two distinct groups and significant differences between these groups only exist in relation to geographical proximity. The present investigation indicates that the coastal region between the states of Pará and Maranhão is characterized by high dynamics and environmental heterogeneity, particularly with regard to changes in river discharge and tidal fluctuations. The present results underscore the importance of ecological information on ichthyofauna in tropical estuaries in order to include appropriate descriptors in conservation or restoration processes of marine communities and habitats.

Present status and historical changes in the fish fauna of the Berg River, South Africa

2009 ◽  
Vol 64 (2) ◽  
pp. 142-163 ◽  
Author(s):  
B. M. Clark ◽  
D. Impson ◽  
J. Rall
Keyword(s):  
South Africa ◽  
Present Status ◽  
Fish Fauna ◽  
Historical Changes

scholarly journals Preliminary assessment of surf-zone and estuarine line-fish species of the Dwesa-Cwebe Marine Protected Area, Eastern Cape, South Africa

Koedoe ◽  
2012 ◽  
Vol 54 (1) ◽  
Author(s):  
Jan A. Venter ◽  
Bruce Q. Mann
Keyword(s):  
South Africa ◽  
Law Enforcement ◽  
Fish Species ◽  
Protected Area ◽  
Surf Zone ◽  
Marine Protected Area ◽  
Fish Populations ◽  
Estuarine Fish ◽  
Catch Per Unit Effort ◽  
Preliminary Assessment

A preliminary assessment of surf-zone and estuarine line fish was carried out in the DwesaCwebe Marine Protected Area (MPA), on the Wild Coast, South Africa. The purpose was to provide baseline data on inshore line-fish stocks in the MPA. A total of 28 species was recorded, of which 53% have a conservation status reflecting some concern and 43% are endemic to southern Africa. This highlights the value of the MPA for protection of important line-fish species. Within the MPA, localised differences were detected in species diversity, size frequency and catch per unit effort between unexploited and illegally exploited areas. These differences were more prominent in slow growing, long-lived species. It thus appears that illegal exploitation is negatively affecting fish populations within the MPA, which counteract and potentially could eliminate the benefits of fish protection typically associated with no-take MPAs. These results highlight the need for improved law enforcement and better communication with neighbouring communities to increase awareness. It is further recommended that the current no-take status of the MPA should be maintained. In addition, baseline fisheries information was collected on certain fish species that could be used to inform future conservation management of the MPA.Conservation implications: The Dwesa-Cwebe Marine Protected Area is unique and important for the conservation of key surf zone and estuarine fish species. However there is a significant risk to the fish populations due to illegal exploitation. Key interventions should include enhanced law enforcement but, more important, the creation of alternative livelihoods and long term sustainable benefits to local communities.

Benthic faunal distribution and abundance in the Mfolozi–Msunduzi estuarine system, KwaZulu-Natal, South Africa

2010 ◽  
Vol 35 (2) ◽  
pp. 123-133 ◽  
Author(s):  
S G Ngqulana ◽  
R K Owen ◽  
L Vivier ◽  
D P Cyrus
Keyword(s):  
South Africa ◽  
Estuarine System ◽  
Kwazulu Natal ◽  
Faunal Distribution

Checklist of the marine and estuarine fishes of New Ireland Province, Papua New Guinea, western Pacific Ocean, with 810 new records

Zootaxa ◽  
2019 ◽  
Vol 4588 (1) ◽  
pp. 1
Author(s):  
RONALD FRICKE ◽  
GERALD R. ALLEN ◽  
DIETMAR AMON ◽  
SERGE ANDRÉFOUËT ◽  
WEI-JEN CHEN ◽  
...  
Keyword(s):  
New Records ◽  
Fish Fauna ◽  
Wide Distribution ◽  
Estuarine Fish ◽  
Western Pacific Ocean ◽  
Transitional Waters ◽  
Estuarine Fishes ◽  
Marine Habitats ◽  
Freshwater Habitats ◽  
Wide Distribution Range

A checklist of the marine and estuarine fishes of New Ireland Province is presented, with special emphasis on Kavieng District, combining both previous and new records. After the recent KAVIENG 2014 expedition, a total of 1325 species in 153 families were recorded from the region. The largest families are the Gobiidae, Pomacentridae, Labridae, Serranidae, Apogonidae, Lutjanidae, Chaetodontidae, Blenniidae, Carangidae, Acanthuridae, Scaridae, Holocentridae, Syn-gnathidae, Lethrinidae and Scorpaenidae. A total of 810 fish species (61.1 % of the total marine and estuarine fish fauna) are recorded from New Ireland for the first time.The fish fauna of New Ireland includes 142 species in transitional waters and 1264 species in marine habitats, and 54 species species in freshwater habitats. Zoogeographically, 1179 species have a wide distribution range, most frequently a broad Indo-West Pacific distribution. Among the remaining species, just 12 are endemic to New Ireland. 

The potential for zoobenthic fauna dispersal into the St Lucia Estuary from the Mfolozi–Msunduzi estuarine system, KwaZulu-Natal, South Africa

2010 ◽  
Vol 35 (2) ◽  
pp. 135-140 ◽  
Author(s):  
R K Owen ◽  
D P Cyrus ◽  
L Vivier ◽  
H L Jerling
Keyword(s):  
South Africa ◽  
Estuarine System ◽  
Kwazulu Natal

scholarly journals Estimation of groundwater recharge via percolation outputs from a rainfall/runoff model for the Verlorenvlei estuarine system, west coast, South Africa

2018 ◽  
Vol 558 ◽  
pp. 238-254 ◽  
Author(s):  
Andrew Watson ◽  
Jodie Miller ◽  
Melanie Fleischer ◽  
Willem de Clercq
Keyword(s):  
South Africa ◽  
Groundwater Recharge ◽  
West Coast ◽  
Estuarine System ◽  
Rainfall Runoff ◽  
Rainfall Runoff Model ◽  
Runoff Model

scholarly journals Marine and estuarine fish diversity in the inner Gulf of Nicoya, Pacific coast of Costa Rica, Central America

Check List ◽  
2014 ◽  
Vol 10 (6) ◽  
pp. 1401 ◽  
Author(s):  
Atsunobu Murase ◽  
Arturo Angulo ◽  
Yusuke Miyazaki ◽  
William Bussing ◽  
Myrna López
Keyword(s):  
Costa Rica ◽  
Central America ◽  
Pacific Coast ◽  
Habitat Type ◽  
Fish Fauna ◽  
Marine Species ◽  
Estuarine Fish ◽  
Fish Diversity ◽  
Tropical Eastern Pacific ◽  
Gulf Of Nicoya

A checklist of the marine and estuarine fishes of the inner part of the Gulf of Nicoya, Pacific coast of Costa Rica, Central America, was compiled by examining a museum fish collection, resulting in 72 families and 274 species. Of these species, 127 (46.4%) were marine species and 147 (53.6%) were estuarine-associated species. In terms of their life history and considering the habitat type classification, 188 (almost 70% of the total) were categorized as species inhabiting soft-bottom habitats, reflecting the large estuarine environment and rich fish diversity of the Gulf despite its relatively small area in the tropical Eastern Pacific region. Furthermore, the list contains 13 threatened species of IUCN Red List, which need further research to understand their abundance and their exposure to habitat loss in the Gulf. Further detailed studies on its fish fauna and habitat are needed to better understand and conserve biodiversity within the whole Gulf.

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