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180606s2004 xx |||||o 00| ||eng c |
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|a (DE-627)JST114390959
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|a (JST)24867590
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Erlandsson, Johan
|e verfasserin
|4 aut
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|a Spatial structure of recruitment in the musselPerna pernaat local scales:
|b effects of adults, algae and recruit size
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|c 2004
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|a Text
|b txt
|2 rdacontent
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|a Computermedien
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|2 rdamedia
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|a Online-Ressource
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|a ABSTRACT: To test the assumption that there is no spatial structure in small-scale recruitment variability of rocky shore mussels, we examined spatial dependence in the distribution of density of recruits (late plantigrades: 0.5 to 3.5 mm; larger recruits: 3.5 to 10 mm) and adults of the brown musselPerna pernawithin local scales (30 lags ranging between 0.35 and 10.5 m) in mid- and upper mussel beds. Spatial heterogeneity was estimated by analyzing scaling properties of semivariograms using a fractal approach. Relationships between density of mussel recruits and adults and biomass of the red algaGelidium pristoidesat the different scales were examined by cross-semivariograms. We found that the distribution of adults showed spatial dependence at all transects, often with higher spatial heterogeneity (higher fractal dimension,D) at smaller scales (1st scaling region). The distribution of larger recruits exhibited spatial dependence at all transects, revealing a spatial structure, which was related to that of adults. In contrast, the distribution of late plantigrades showed mainly spatial independence (random pattern; 1.97 <D≤ 2). Densities of both size classes of recruits were positively related to those of adults at all transects and scales, but the relationship was stronger for larger recruits than late plantigrades, explaining why there was clearer spatial structure of larger recruits. The relationship with algae was mainly negative for larger recruits, while it tended to be positive at many scales for late plantigrades. Thus, both adult mussels andG. pristoidesare suitable habitats for plantigrades, while mussels are the main habitat for larger recruits. This may mean that recruits on algae either die or migrate to mussel clumps at a certain size. This study highlights the importance of recruit size when analyzing recruitment patchiness of mussels, and has implications for sustainable management ofP. perna.
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|a © Inter-Research 2004
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|a Recruitment heterogeneity
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|a Intertidal mussel distribution
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|a South Africa
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|a Fractal dimension
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|a Spatial dependence
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|a Multi-scaling patchiness
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|a Business
|x Industry
|x Industrial sectors
|x Manufacturing industries
|x Consumer goods industries
|x Clothing industry
|x Clothing
|x Clothing accessories
|x Footwear
|x Overshoes
|x Spats
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|a Biological sciences
|x Biology
|x Zoology
|x Animals
|x Mollusks
|x Mussels
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| 650 |
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|a Biological sciences
|x Biology
|x Botany
|x Marine botany
|x Phycology
|x Algae
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| 650 |
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|a Mathematics
|x Applied mathematics
|x Statistics
|x Applied statistics
|x Statistical physics
|x Dimensional analysis
|x Dimensionality
|x Abstract spaces
|x Fractal dimensions
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| 650 |
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|a Applied sciences
|x Engineering
|x Civil engineering
|x Marine engineering
|x Marine structures
|x Harbors
|x Ports
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|a Social sciences
|x Population studies
|x Mortality
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|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Landforms
|x Coastal landforms
|x Coasts
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|a Information science
|x Information analysis
|x Data analysis
|x Regression analysis
|x Linear regression
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|a Mathematics
|x Mathematical objects
|x Fractals
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|a Biological sciences
|x Ecology
|x Biomass
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|a research-article
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|a McQuaid, Christopher D.
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Marine Ecology Progress Series
|d Inter-Research, 1979
|g 267(2004) vom: Feb., Seite 173-185
|w (DE-627)320617998
|w (DE-600)2022265-8
|x 16161599
|7 nnns
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|g volume:267
|g year:2004
|g month:02
|g pages:173-185
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|u https://www.jstor.org/stable/24867590
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|d 267
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|h 173-185
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