Effects of Submerged Aquatic Vegetation on Macrozoobenthos in a Coastal Lagoon of the Southwestern Atlantic

2007 ◽  
Vol 92 (1) ◽  
pp. 33-47 ◽  
Author(s):  
Rafael Arocena
Keyword(s):  
Coastal Lagoon ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
Southwestern Atlantic

Spatial and temporal distribution of submerged aquatic vegetation in a tropical coastal lagoon habitat in Viet Nam

2018 ◽  
Vol 61 (3) ◽  
pp. 213-224 ◽  
Author(s):  
T.T. Hang Phan ◽  
Iris Stiers ◽  
T.T. Huong Nguyen ◽  
T. Tuyet Pham ◽  
T. Phap Ton ◽  
...  
Keyword(s):  
Coastal Lagoon ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
Coastal Lagoons ◽  
Predictor Variable ◽  
Viet Nam ◽  
Total Biomass ◽  
Sediment Types ◽  
Najas Indica ◽  
Wide Range

Abstract Submerged aquatic vegetation (SAV) is considered as a keystone habitat, contributing significantly to structure and function of coastal lagoons. However, limited understanding of the factors driving SAV distribution and abundance across a wide range of salinity in tropical coastal lagoons has restricted the effectiveness of managing and preserving the ecosystem services in coastal lagoon habitats. This study examined the distribution and abundance of SAV species in the growing season in relation to water physico-chemical variables and grain sizes of sediment types in a tropical lagoon in Viet Nam. The results revealed that Najas indica and Halophila beccarii were the dominant species in the community of 7 SAV species, accounting for 70% of the total cover and 55% of the total biomass sampled. Variation partitioning showed that both water and sediment variables were important in explaining spatial distribution and abundance of SAV species across the coastal lagoon. Salinity was the most significant predictor variable that accounted for the variation of SAV species data. The study implied that changes of salinity and silt (versus sand) particles can lead to different SAV assemblages in the lagoon.

Seasonal changes in the abundance and distribution of submerged aquatic vegetation in a highly managed coastal lagoon

Hydrobiologia ◽  
2007 ◽  
Vol 596 (1) ◽  
pp. 105-120 ◽  
Author(s):  
D. Lirman ◽  
G. Deangelo ◽  
J. Serafy ◽  
A. Hazra ◽  
D. Smith Hazra ◽  
...  
Keyword(s):  
Coastal Lagoon ◽  
Seasonal Changes ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
Abundance And Distribution

Distribution of Farfantepenaeus aztecus and F. duorarum on submerged aquatic vegetation habitats along a subtropical coastal lagoon (Laguna Madre, Mexico)

2009 ◽  
Vol 90 (3) ◽  
pp. 445-452 ◽  
Author(s):  
Roberto Pérez-Castañeda ◽  
Zeferino Blanco-Martínez ◽  
Jesús Genaro Sánchez-Martínez ◽  
Jaime L. Rábago-Castro ◽  
Gabriel Aguirre-Guzmán ◽  
...  
Keyword(s):  
Coastal Lagoon ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
Negative Relationship ◽  
Laguna Madre ◽  
Farfantepenaeus Aztecus ◽  
Seagrass Biomass ◽  
Hypersaline Coastal Lagoon ◽  
Drifting Algae ◽  
Shrimp Abundance

The spatial distribution of Farfantepenaeus shrimp was analysed in the Laguna Madre of Tamaulipas, Mexico. Sampling was carried out on submerged aquatic vegetation (SAV) habitats at five sites located along the coastal lagoon. Two nocturnal surveys were conducted during winter in 2005 (January–February), collecting a total of 3268 shrimp individuals. SAV beds were composed of a mixture of drift algae (mainly Digenia simplex), attached algae (mainly Penicillus capitatus and Udotea occidentalis) and seagrass (mainly Halodule wrightii). Farfantepenaeus aztecus was more abundant (39.5%) than F. duorarum (36.8%), and the remaining 23.7% corresponding to small unidentified Farfantepenaeus spp. were classified as recruits. Abundance of F. aztecus was significantly higher at sites 2 and 4, whereas F. duorarum did not show significant distribution differences along the Laguna Madre. Recruits, juveniles and total shrimp tended to decrease significantly at the northern part of the lagoon (site 1), where substrate was dominated by drifting algae and seagrasses were scarce or absent. The abundance of shrimp was positively related to seagrass biomass and/or water temperature, whereas there was a negligible or negative relationship with algal biomass. With the exception of subadults, a significant positive linear relationship between seagrass and shrimp abundance was fitted, indicating an increase in number of individuals of both species with increasing seagrass biomass. This suggests that seagrass is the most important component of SAV beds influencing the abundance of F. aztecus and F. duorarum along this hypersaline coastal lagoon.

scholarly journals Novel approach for large‐scale monitoring of submerged aquatic vegetation – a nationwide example from Sweden

2021 ◽  
Author(s):  
Silvia Huber ◽  
Lars B. Hansen ◽  
Lisbeth T. Nielsen ◽  
Mikkel L. Rasmussen ◽  
Jonas Sølvsteen ◽  
...  
Keyword(s):  
Large Scale ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
Novel Approach
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