scholarly journals Seasonal Variation in Macroalgal Community Structure around the Byeonsan Peninsula, Korea

2014 ◽  
Vol 47 (3) ◽  
pp. 274-282
Author(s):  
Su Jin Han ◽  
Ji Hee Lee ◽  
Da Vine Jeon ◽  
Ji Chul Oh ◽  
Bo Yeon Kim ◽  
...  
Keyword(s):  
Community Structure ◽  
Seasonal Variation ◽  
Macroalgal Community

scholarly journals Contrasting recruitment seasonality of sea urchin species in Gran Canaria, Canary Islands (eastern Atlantic)

2014 ◽  
Vol 15 (3) ◽  
pp. 475 ◽  
Author(s):  
S. GARCIA-SANZ ◽  
P. G. NAVARRO ◽  
F. TUYA
Keyword(s):  
Community Structure ◽  
Seasonal Variation ◽  
Sea Urchin ◽  
Sea Urchins ◽  
Late Summer ◽  
Paracentrotus Lividus ◽  
Abundant Species ◽  
Late Winter ◽  
Gran Canaria ◽  
Arbacia Lixula

Despite sea-urchins can play an important role affecting the community structure of subtidal bottoms, factors controlling the dynamics of sea-urchin populations are still poorly understood. We assessed the seasonal variation in recruitment of three sea-urchin species (Diadema africanum, Paracentrotus lividus and Arbacia lixula) at Gran Canaria Island (eastern Atlantic) via monthly deployment of artificial collectors throughout an entire annual cycle on each of four adjacent habitat patches (seagrasses, sandy patches, ‘urchin-grazed’ barrens and macroalgal-dominated beds) within a shallow coastal landscape. Paracentrotus lividus and A. lixula had exclusively one main recruitment peak in late winter-spring. Diadema africanum recruitment was also seasonal, but recruits appeared in late summer-autumn, particularly on ‘urchin-grazed’ barrens with large abundances of adult conspecifics. In conclusion, this study has demonstrated non-overlapping seasonal recruitment patterns of the less abundant species (P. lividus and A. lixula) with the most conspicuous species (D. africanum) in the study area.

scholarly journals An Analysis of Subtidal Macroalgal Community Structure Using a Modified Photo Quadrat Method

2011 ◽  
Vol 44 (3) ◽  
pp. 298-307 ◽  
Author(s):  
Young-Dae Kim ◽  
Mi-Seun Park ◽  
Tae-Seok Moon ◽  
Jung-Kwan Ahn ◽  
Su-Ji Kim ◽  
...  
Keyword(s):  
Community Structure ◽  
Macroalgal Community ◽  
Quadrat Method

Macroalgal Community Structure on the Subtidal of Southern Six Islands, Korea

2017 ◽  
Vol 35 (4) ◽  
pp. 595-603
Author(s):  
Jin suk Heo ◽  
Hyun Il Yoo ◽  
Eun jung Park ◽  
Dong Soo Ha
Keyword(s):  
Community Structure ◽  
Macroalgal Community

Seasonal variation in copepod abundance and community structure in the Laoshan Bay, China

2019 ◽  
Vol 28 ◽  
pp. 100577
Author(s):  
Yongqiang Shi ◽  
Wei Yuan ◽  
Tao Zuo ◽  
Jun Wang ◽  
Evgeny A. Pakhomov
Keyword(s):  
Community Structure ◽  
Seasonal Variation ◽  
Copepod Abundance

scholarly journals Picoplankton seasonal variation and community structure in the northeast Adriatic coastal zone

2012 ◽  
Vol 82 (3) ◽  
pp. 678-691 ◽  
Author(s):  
Tina Šilović ◽  
Vanessa Balagué ◽  
Sandi Orlić ◽  
Carlos Pedrós-Alió
Keyword(s):  
Community Structure ◽  
Seasonal Variation ◽  
Coastal Zone

scholarly journals Diet and niche breadth and overlap in fish communities within the area affected by an Amazonian reservoir (Amapá, Brazil)

2014 ◽  
Vol 86 (1) ◽  
pp. 383-406 ◽  
Author(s):  
JÚLIO C. SÁ-OLIVEIRA ◽  
RONALDO ANGELINI ◽  
VICTORIA J. ISAAC-NAHUM
Keyword(s):  
Community Structure ◽  
Seasonal Variation ◽  
Fish Species ◽  
Niche Breadth ◽  
Null Model ◽  
Stomach Contents ◽  
Physical Conditions ◽  
River Damming ◽  
Standard Configuration ◽  
Feeding Resources

We investigated the niche breadth and overlap of the fish species occurring in four environments affected by the Coaracy Nunes reservoir, in the Amapá Brazilian State. Seasonal samples of fishes were taken using a standard configuration of gillnets, as well as dragnets, lines, and castnets. Five hundred and forty stomach contents, representing 47 fish species were analyzed and quantified. Niche breadth and overlap were estimated using indexes of Levins and Pianka, respectively, while interspecific competition was evaluated using a null model (RA3). ANOVA and the KruskalWallis test were used, respectively, to evaluate differences in niche breadth and overlap between areas. The data indicate that the majority of the fish species belong to the piscivore, omnivore, and detritivore guilds. These species have likely colonized the environments due to the availability of suitable feeding resources, and the favorable physical conditions created by the river damming. Overall, few species have ample niches, but most of them are highly specialized. Resources seasonal variation had little effect on the feeding behavior of most species in the study areas. The null models indicated that competition was not a factor determining on community structure.

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