scholarly journals Rocky reef fish community structure in two Azorean islands (Portugal) central North Atlantic

2010 ◽  
Vol 90 (7) ◽  
pp. 1353-1362 ◽  
Author(s):  
Áthila Andrade Bertoncini ◽  
Leonardo Francisco Machado ◽  
João Pedro Barreiros ◽  
Maurício Hostim-Silva ◽  
José Roberto Verani
Keyword(s):  
Community Structure ◽  
Reef Fish ◽  
North Atlantic ◽  
Fish Fauna ◽  
Abundant Species ◽  
Rocky Reef ◽  
Fish Community Structure ◽  
Diplodus Sargus ◽  
Rocky Reef Fish ◽  
Tripterygion Delaisi

The community structure of shallow rocky reef fish fauna of the Azores Archipelago is described from underwater visual censuses carried out at eight areas (Terceira and Corvo Islands). A total of 52 fish species from 26 different families was observed, and the ten most abundant fish corresponded to 82.7% of all fish. Trophic categories are given for observed species with comments on distribution and densities along sampled depth strata. Mean densities along sampled strata were tested for significant differences. Sparidae, Labridae and Carangidae were the most speciose families being Diplodus sargus, Pagellus acarne, Coris julis, Thalassoma pavo and Tripterygion delaisi the most abundant species that consequently also accounted for the highest densities.

scholarly journals Rocky reef fish assemblage structure in coastal islands of Southern Brazil

2015 ◽  
Vol 2 ◽  
Author(s):  
Daros Felippe ◽  
Bueno Leonardo ◽  
Soeth Marcelo ◽  
Bertoncini Athila ◽  
Hostim-Silva Mauricio ◽  
...  
Keyword(s):  
Reef Fish ◽  
Fish Assemblage ◽  
Assemblage Structure ◽  
Rocky Reef ◽  
Fish Assemblage Structure ◽  
Southern Brazil ◽  
Reef Fish Assemblage ◽  
Rocky Reef Fish

Change in the rocky reef fish fauna of the iconic Poor Knights Islands Marine Reserve in north-eastern New Zealand over 4 decades

2018 ◽  
Vol 69 (10) ◽  
pp. 1496
Author(s):  
David R. Schiel ◽  
Tony Ayling ◽  
Michael J. Kingsford ◽  
Christopher N. Battershill ◽  
J. Howard Choat ◽  
...  
Keyword(s):  
Reef Fish ◽  
Fish Species ◽  
Marine Reserve ◽  
Fish Fauna ◽  
Rocky Reef ◽  
Long Term Effects ◽  
Before And After ◽  
Negative Effect ◽  
Reef Fish Species

Marine reserves exhibit increases in targeted fish species, but long-term effects on biodiversity are poorly understood. Factors other than reserve status may affect decadal changes, including environmental change. We examined the fish fauna at the iconic Poor Knights Islands over 4 decades (1974–2016) before and after implementation of a no-take marine reserve in 1998. We document a substantial increase in commercially and recreationally targeted Chrysophrys auratus, which was virtually absent before 1994 but by 2016 had reached up to 11 fish per 500m2 (220 per hectare). There were also large changes to the fish community, including the decline of subtropical and coastal wrasses, some species with no change and others that increased significantly. Many declines occurred >20 years before the arrival of abundant C. auratus, suggesting the changes do not represent a trophic cascade. Furthermore, this normally benthic-feeding fish has adopted a mid-water foraging behaviour targeting planktivorous fish. The increase in C. auratus appears to be linked both to reserve status and catch regulations in the wider region. Overall, the data point to long-term environmental fluctuations from the late 1970s having a negative effect on the abundance of more than half the reef fish species at these islands.

Multi-scale spatial heterogeneity, habitat structure, and the effect of marine reserves on Western Mediterranean rocky reef fish assemblages

2004 ◽  
Vol 144 (1) ◽  
pp. 161-182 ◽  
Author(s):  
J. A. Garc�a-Charton ◽  
�. P�rez-Ruzafa ◽  
P. S�nchez-Jerez ◽  
J. T. Bayle-Sempere ◽  
O. Re�ones ◽  
...  
Keyword(s):  
Spatial Heterogeneity ◽  
Reef Fish ◽  
Habitat Structure ◽  
Fish Assemblages ◽  
Marine Reserves ◽  
Western Mediterranean ◽  
Rocky Reef ◽  
Multi Scale ◽  
Rocky Reef Fish

Reef fish community structure on coastal islands of the southeastern Brazil: the influence of exposure and benthic cover

2006 ◽  
Vol 78 (2) ◽  
pp. 147-160 ◽  
Author(s):  
Sergio R. Floeter ◽  
Werther Krohling ◽  
João Luiz Gasparini ◽  
Carlos E. L. Ferreira ◽  
Ilana R. Zalmon
Keyword(s):  
Community Structure ◽  
Reef Fish ◽  
Fish Community ◽  
Southeastern Brazil ◽  
Fish Community Structure ◽  
Reef Fish Community

Nearshore fish community of the Port River-Barker Inlet Estuary, South Australia. I. Effect of thermal effluent on the fish community structure, and distribution and growth of economically important fish species

1996 ◽  
Vol 47 (6) ◽  
pp. 785 ◽  
Author(s):  
GK Jones ◽  
JL Baker ◽  
K Edyvane ◽  
GJ Wright
Keyword(s):  
Community Structure ◽  
Fish Community ◽  
Fish Fauna ◽  
South Australia ◽  
Fish Community Structure ◽  
Point Source Pollution ◽  
Dimensional Scaling ◽  
Thermal Effluent ◽  
Population Structures ◽  
Polluted Sites

The nearshore fish community of the Port River-Barker Inlet Estuary was sampled between January 1986 and May 1987 using a beach seine to determine the effect of thermal effluent on the community structure and nursery function of the estuary. A total of 41 species was found in the estuary, with decreasing numbers of species with decreasing distance from the thermal outfall. Cluster analyses and multi-dimensional scaling ordination separated the thermally polluted sites from the non-affected sites. During the summer/auturnn period, thermal effluent only affected water temperature and the species compositions in the inner estuary, and the estuary-opportunistic species Aldrichetta forsteri, Arripis georgiana, A. truttacea and Hyporhamphus melanochir avoided the area at this time. During winter/spring months, thermal effluent acted in the opposite way, with A. forsteri attracted to the warmer waters of the inner estuary. The extended growth season for this species and significantly higher growth rates promoting premature movement out of the inner estuary for S. punctata were additional direct effects. These latter effects may alter the population structures of these species by increasing their vulnerability to heavy localized fishing intensity, aggregation of natural predators and point-source pollution. The species composition of the fish fauna of the estuary may also be indirectly affected by the thermal pollution-mediated seagrass loss in the inner estuary and a method is described to test this hypothesis.

Assessment of rocky reef fish assemblages close to seaweed farming

2015 ◽  
Vol 48 (2) ◽  
pp. 481-493 ◽  
Author(s):  
Leonardo Lara de Carvalho ◽  
Eduardo Godoy Aires de Souza ◽  
Mauricio Roque da Mata Júnior ◽  
Roberto Campos Villaça
Keyword(s):  
Reef Fish ◽  
Fish Assemblages ◽  
Rocky Reef ◽  
Seaweed Farming ◽  
Rocky Reef Fish
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