Spatio-temporal variations of fish assemblages in seagrass ecosystem of Karang Congkak Island, Kepulauan Seribu

Seagrass are globally known as an essential habitat for marine fishes. The study of fish assemblages in seagrass ecosystem is needed as the first base to select the most suitable coastal fisheries management. The study aims to reveal the composition of fish assemblages both seasonally and spatially in Karang Congkak Island, Kepulauan Seribu. Sampling was performed six times in NW monsoon (March), first transitional monsoon (April-May) and SE monsoon (Juni, August, September) 2018. Fish were sampled at four sites at seagrass ecosystem of Karang Congkak Island, namely eastern, southern, western, and northern by using beach seine net. The differences of juvenile fish assemblages were analyzed using One-Way ANOSIM. A total of 6,326 fish were collected belonging to 78 species, 31 families and 10 orders in which Labridae was the most diverse family. The result indicates strong spatial and temporal variation in fish composition. Fish compositions were dominated by juvenile both spatially and temporally. The most common species that inhabits seagrass beds of the Karang Congkak Island as temporary resident such as Gerres oyena and Siganus canaliculatus, and regular visitor namely Halichoeres argus. Cannonical correspondence analysis indicated strong correlation between several fish species and environmental variables.

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Spatio-temporal variations in fish assemblages in a tropical regulated lower river course: an environmental guild

River Research and Applications ◽

10.1002/rra.1338 ◽

2011 ◽

Vol 27 (1) ◽

pp. 47-58 ◽

Cited By ~ 5

Author(s):

T. Jutagate ◽

S. Lek ◽

A. Sawusdee ◽

U. Sukdiseth ◽

T. Thapanand-Chaidee ◽

...

Keyword(s):

Fish Assemblages ◽

Temporal Variations ◽

Spatio Temporal

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Spatio-temporal structure of pelagic larval and juvenile fish assemblages in coastal areas of New Caledonia, southwest Pacific

Marine Biology ◽

10.1007/s00227-006-0389-y ◽

2006 ◽

Vol 150 (4) ◽

pp. 697-711 ◽

Cited By ~ 27

Author(s):

L. Carassou ◽

D. Ponton

Keyword(s):

Fish Assemblages ◽

New Caledonia ◽

Temporal Structure ◽

Juvenile Fish ◽

Coastal Areas ◽

Southwest Pacific ◽

Spatio Temporal

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Spatio-temporal variations in demersal fish assemblages and diversity in the northern Gulf of St. Lawrence (Canada)

Marine Ecology ◽

10.1111/maec.12163 ◽

2014 ◽

Vol 36 (3) ◽

pp. 557-571 ◽

Cited By ~ 4

Author(s):

Hacène Tamdrari ◽

Jean-Claude Brêthes ◽

Diane Archambault

Keyword(s):

Fish Assemblages ◽

Demersal Fish ◽

Temporal Variations ◽

Spatio Temporal

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Littoral 0+ fish assemblages in three reservoirs of the Nové Mlýny dam (Czech Republic)

Czech Journal of Animal Science ◽

10.17221/4331-cjas ◽

2011 ◽

Vol 49 (No. 10) ◽

pp. 450-457 ◽

Cited By ~ 6

Author(s):

P. Jurajda ◽

J. Regenda

Keyword(s):

Czech Republic ◽

Fish Assemblages ◽

Juvenile Fish ◽

Rutilus Rutilus ◽

Common Species ◽

Roach Rutilus Rutilus ◽

Sandy Gravel ◽

Fish Samples ◽

Lowland Reservoirs ◽

Leuciscus Idus

A synchronous study of 0+ juvenile fish in three lowland reservoirs (Mu&scaron;ov, Věstonice, Nové Mlýny) of the Nové Mlýny dam (Czech Republic) was conducted in July 1997. Fish were sampled by fry beach seine and backpack electro fishing gear at 32 sites in three types of inshore habitats: concrete stepped embankment, stony rip-rap and sandy-gravel beach. In total, we registered 0+ juvenile fish of 17 species and one hybrid. The most common species was bleak Alburnus alburnus (62.7%), followed by roach Rutilus rutilus (12.8%), ide Leuciscus idus (6.2%) and asp Aspius aspius (5.5%). More than 53% of 0+ fish samples were caught in beach sites, 43% in rip-rap sites and only 3.4% in concrete embankment. The littoral assemblages of 0+ fish differed between the three adjacent reservoirs and also between the shoreline types.  

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Partitioning the variation in stream fish assemblages within a spatio-temporal hierarchy

Marine and Freshwater Research ◽

10.1071/mf06183 ◽

2007 ◽

Vol 58 (7) ◽

pp. 675 ◽

Cited By ~ 29

Author(s):

Ben Stewart-Koster ◽

Mark J. Kennard ◽

Bronwyn D. Harch ◽

Fran Sheldon ◽

Angela H. Arthington ◽

...

Keyword(s):

Temporal Variation ◽

Total Variation ◽

Fish Assemblages ◽

Environmental Variation ◽

Spatial And Temporal Variation ◽

Spatial Effects ◽

Explanatory Variables ◽

Spatio Temporal ◽

Variation Explained ◽

Stream Fish Assemblages

This paper describes the relative influence of (i) landscape scale environmental and hydrological factors, (ii) local scale environmental conditions including recent flow history, and (iii) spatial effects (proximity of sites to one another), on the spatial and temporal variation in local freshwater fish assemblages in the Mary River, south-eastern Queensland, Australia. Using canonical correspondence analysis, each of the three sets of variables explained similar amounts of variation in fish assemblages (ranging from 44 to 52%). Variation in fish assemblages was partitioned into eight unique components: pure environmental, pure spatial, pure temporal, spatially structured environmental variation, temporally structured environmental variation, spatially structured temporal variation, the combined spatial/temporal component of environmental variation and unexplained variation. The total variation explained by these components was 65%. The combined spatial/temporal/environmental component explained the largest component (30%) of the total variation in fish assemblages, whereas pure environmental (6%), temporal (9%) and spatial (2%) effects were relatively unimportant. The high degree of intercorrelation between the three different groups of explanatory variables indicates that our understanding of the importance to fish assemblages of hydrological variation (often highlighted as the major structuring force in river systems) is dependent on the environmental context in which this role is examined.

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Spatial and temporal dynamics of temperate Australian rockpool ichthyofaunas

Marine and Freshwater Research ◽

10.1071/mf02102 ◽

2003 ◽

Vol 54 (2) ◽

pp. 163 ◽

Cited By ~ 32

Author(s):

Shane P. Griffiths

Keyword(s):

Fish Assemblages ◽

Temporal Dynamics ◽

New South ◽

Common Species ◽

Spatial And Temporal Variation ◽

Future Research ◽

Fish Assemblage Structure ◽

Intertidal Environment ◽

South Wales ◽

Spatial And Temporal Dynamics

Spatial and temporal variation, and factors influencing the structure of intertidal rockpool fish assemblages were quantitatively investigated at three large rocky headlands in south-eastern New South Wales, Australia. A total of 5244 fish from 46 species, mainly permanent intertidal residents from the families Clinidae, Blenniidae, Tripterygiidae, Gobiidae, Gobiesocidae and Girellidae, was caught in the rockpools. Numbers of species and individuals and dominance patterns of species showed significant variability within locations, possibly in response to variations in rockpool tidal height and volume, or environmental variables, such as temperature and dissolved oxygen. Species composition also differed among locations, probably as a result of availability of different habitats at each location, which may be preferred by different species. Fish assemblage structure was stable and persistent through time, presumably because rockpools are colonized only by species suitably adapted to the dynamic intertidal environment. Temporal variability in the abundance of some common species occurred during summer and autumn, mainly owing to recruitment of resident fishes. Directions for future research are given, which may contribute to an understanding of the processes that underpin these patterns.

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Improving the Retrieval of Carbon-Based Phytoplankton Biomass from Satellite Ocean Colour Observations

Remote Sensing ◽

10.3390/rs12213640 ◽

2020 ◽

Vol 12 (21) ◽

pp. 3640

Author(s):

Marco Bellacicco ◽

Jaime Pitarch ◽

Emanuele Organelli ◽

Victor Martinez-Vicente ◽

Gianluca Volpe ◽

...

Keyword(s):

Phytoplankton Biomass ◽

Marine Ecosystem ◽

Temporal Variations ◽

Relative Bias ◽

Spatial And Temporal Variation ◽

Phytoplankton Distribution ◽

Phytoplankton Size ◽

Spatio Temporal ◽

Ocean Monitoring ◽

Detrital Particles

Phytoplankton is at the base of the marine food web and plays a fundamental role in the global carbon cycle. Ongoing climate change significantly impacts phytoplankton distribution in the ocean. Monitoring phytoplankton is crucial for a full understanding of changes in the marine ecosystem. To observe phytoplankton from space, chlorophyll-a concentration (Chl) has been widely used as a proxy of algal biomass, although it can be impacted by physiology. Therefore, there has been an increasing focus towards estimating phytoplankton biomass in units of carbon (Cphyto). Here, we developed an algorithm to quantify Cphyto from space-based observations that accounts for the spatio-temporal variations of the backscattering coefficient associated with the fraction of detrital particles that do not covary with Chl. The main findings are: (i) a spatial and temporal variation of the detritus component must be accounted for in the Cphyto algorithm; (ii) the refined Cphyto algorithm performs better (relative bias of 23.7%) than any previously existing model; and (iii) our algorithm shows the lowest error in Cphyto across areas where picophytoplankton dominates (relative bias of 14%). In other areas, it is currently not possible to accurately assess the performance of the refined algorithm due to the paucity of in situ carbon data associated with nano- and micro-phytoplankton size classes.

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