Dealing with missing sensor values in predicting shellfish farm closure

2013 ◽  
Author(s):  
A. Rahman ◽  
C. D'Este ◽  
G. Timms
Keyword(s):  
Shellfish Farm

Foraging effort of Surf Scoters (Melanitta perspicillata) wintering in a spatially and temporally variable prey landscape

2007 ◽  
Vol 85 (12) ◽  
pp. 1207-1215 ◽  
Author(s):  
Molly K. Kirk ◽  
Daniel Esler ◽  
W. Sean Boyd
Keyword(s):  
Rocky Intertidal ◽  
Seasonal Effects ◽  
Soft Bottom ◽  
Foraging Effort ◽  
Melanitta Perspicillata ◽  
Shellfish Farm ◽  
Farm Structures ◽  
Strong Depletion ◽  
Full Day ◽  
Very High

We monitored foraging effort of radio-tagged Surf Scoters (Melanitta perspicillata (L., 1758)) in three different habitats: (1) shellfish farm structures with high densities of mussels and strong seasonal prey depletion, (2) soft-bottom clam beds with more stable but less available prey, and (3) rocky intertidal beds with moderate mussel densities and depletion rates. We predicted that foraging effort would vary uniquely by habitat, with effort increasing more where depletion was strongest. However, variation in both hourly and daily foraging efforts was best explained by date only. Effort per hour was lowest in early December (presumably owing to very high prey abundance), increased until mid-February as prey declined, and then decreased again in March (probably owing to increased daylight time for foraging). Foraging effort estimated over a full day increased steadily from December to March as prey were depleted. Temporal patterns of effort did not vary by habitat after accounting for seasonal effects. Instead of increasing foraging effort in habitats with strong depletion, Surf Scoters redistributed to habitats with lower degrees of prey reduction as the season progressed. We suggest that Surf Scoters respond to variation in prey by adjusting both foraging effort and habitat selection as the prey landscape changes.

Changes in the Community Structure of Benthic Polychaetes after the Shellfish Farm Cessation in Tongyeong Bay of Korea

2021 ◽  
Vol 27 (5) ◽  
pp. 605-617
Author(s):  
Sohyun Park ◽  
◽  
Sunyoung Kim ◽  
Bo-Ram Sim ◽  
Se-jin Park ◽  
...  
Keyword(s):  
Community Structure ◽  
Shellfish Farm

scholarly journals Time-series prediction of shellfish farm closure: A comparison of alternatives

2014 ◽  
Vol 1 (1) ◽  
pp. 42-50 ◽  
Author(s):  
Ashfaqur Rahman ◽  
Md Sumon Shahriar ◽  
Claire D’Este ◽  
Greg Smith ◽  
John McCulloch ◽  
...  
Keyword(s):  
Time Series ◽  
Time Series Prediction ◽  
Shellfish Farm

scholarly journals The characteristic of photosynthetic pigments distribution of the sediment in the shellfish farm

2013 ◽  
Vol 29 (4) ◽  
pp. 291-301
Author(s):  
Sook-Yang Kim ◽  
Minkyu Choi ◽  
Dong-Woon Hwang ◽  
In-Seok Lee
Keyword(s):  
Photosynthetic Pigments ◽  
Shellfish Farm
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