Abstract
Filtration rates were measured as the clearance of algal cells (Rhodomonas sp.) in the laboratory for the bryozoan Electra bellula (Hincks). The colony clearance rates were related to both total and specific (active) area of the colony, and a closer correlation was obtained when relating clearance to specific area. All results were therefore related to specific colony area. On average 49% of total colony area had active zooids. Clearance rates were measured at temperatures ranging from 16 to 24 degrees C. Maximum specific clearance rates (F-max) were from the 2-3 replicates with the highest specific clearance rates out of 3-8 experiments performed with each colony. F-max varied from 69 ml h(-1) cm(-2) at 16 degrees C to 107 ml h(-1) cm(-2) at 24 degrees C. Highest F-max of 115 ml h(-1) cm(-2) was measured at 20 degrees C. Dry weight (DW) related to total area by W-DW = 5.15 mg cm(-2) and ash-free dry weight (AFDW) by W-AFDW = 1.15 mg cm(-2). F-max = 9.5 1h(-1) g(-1) DW and 43 1h(-1) g(-1) AFDW at 22 degrees C. The clearance capacity of bryozoan communities in seagrass meadows of Western Australia is estimated by use of these results. (C) 2000 Elsevier Science B.V. All rights reserved.
| Original language | English |
|---|---|
| Journal | Journal of Experimental Marine Biology and Ecology |
| Volume | 244 |
| Issue number | 2 |
| Pages (from-to) | 285-296 |
| ISSN | 0022-0981 |
| DOIs | |
| Publication status | Published - 2000 |
| Externally published | Yes |
Keywords
- Aquatic Science
- Ecology, Evolution, Behavior and Systematics
- Ecology
- Agriculture, Biology and Environmental Sciences
- Earth Science and Geography
- Bryozoans
- Clearance rate
- Electra bellula
- Filtration rate
- Temperature effect
- grazing
- laboratory method
- seagrass meadow
- alga
- article
- Australia
- Bryozoa
- clearance
- ecology
- filtration
- grass
- nonhuman
- temperature
- Indian Ocean
- ECOLOGY
- MARINE
- FEEDING CURRENT VELOCITY
- FILTRATION-RATE
- PARTICLE CONCENTRATION
- ECTOPROCTS BRYOZOA
- MARINE ECTOPROCTS
- ENERGY-COST
- TEMPERATURE
- DYNAMICS
- CAPTURE
- PUMP
- bryozoans
- clearance rate
- filtration rate
- temperature effect
- Western Australia Australia Australasian region
- clearance capacity
- colony clearance rate
- Algae Plantae (Algae, Microorganisms, Nonvascular Plants, Plants) - Cryptophyta [13700] Rhodomonas sp.
- Invertebrata Animalia (Animals, Invertebrates) - Ectoprocta [57000] Electra bellula
- 07502, Ecology: environmental biology - General and methods
- 23001, Temperature - General measurement and methods
- 64022, Invertebrata: comparative, experimental morphology, physiology and pathology - Ectoprocta
- Ecology, Environmental Sciences
- Marine Ecology
