Early life stages of Northern shrimp (Pandalus borealis) are sensitive to fish feed containing the anti-parasitic drug diflubenzuron.
Increasing use of fish feed containing the chitin synthesis inhibiting anti-parasitic drug diflubenzuron (DFB) in salmon aquaculture has raised concerns over its impact on coastal ecosystems. Larvae of Northern shrimp (Pandalus borealis) were exposed to DFB medicated feed under Control conditions (7...
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ftleicesterunfig:oai:figshare.com:article/10230959 2023-05-15T17:43:56+02:00 Early life stages of Northern shrimp (Pandalus borealis) are sensitive to fish feed containing the anti-parasitic drug diflubenzuron. R. K. Bechmann E. Lyng S. Westerlund S. Bamber M. Berry M. Arnberg A. Kringstad P. Calosi Paul J. Seear 2018-02-28T00:00:00Z https://figshare.com/articles/journal_contribution/Early_life_stages_of_Northern_shrimp_Pandalus_borealis_are_sensitive_to_fish_feed_containing_the_anti-parasitic_drug_diflubenzuron_/10230959 unknown 2381/41702 https://figshare.com/articles/journal_contribution/Early_life_stages_of_Northern_shrimp_Pandalus_borealis_are_sensitive_to_fish_feed_containing_the_anti-parasitic_drug_diflubenzuron_/10230959 CC BY-NC-ND 4.0 CC-BY-NC-ND Uncategorized Aquaculture Combined effects Diflubenzuron Ocean acidification Ocean warming Pandalus borealis Text Journal contribution 2018 ftleicesterunfig 2021-11-11T19:31:02Z Increasing use of fish feed containing the chitin synthesis inhibiting anti-parasitic drug diflubenzuron (DFB) in salmon aquaculture has raised concerns over its impact on coastal ecosystems. Larvae of Northern shrimp (Pandalus borealis) were exposed to DFB medicated feed under Control conditions (7.0 °C, pH 8.0) and under Ocean Acidification and Warming conditions (OAW, 9.5 °C and pH 7.6). Two weeks' exposure to DFB medicated feed caused significantly increased mortality. The effect of OAW and DFB on mortality of shrimp larvae was additive; 10% mortality in Control, 35% in OAW, 66% in DFB and 92% in OAW + DFB. In OAW + DFB feeding and swimming activity were reduced for stage II larvae and none of the surviving larvae developed to stage IV. Two genes involved in feeding (GAPDH and PRLP) and one gene involved in moulting (DD9B) were significantly downregulated in larvae exposed to OAW + DFB relative to the Control. Due to a shorter intermoult period under OAW conditions, the OAW + DFB larvae were exposed throughout two instead of one critical pre-moult period. This may explain the more serious sub-lethal effects for OAW + DFB than DFB larvae. A single day exposure at 4 days after hatching did not affect DFB larvae, but high mortality was observed for OAW + DFB larvae, possibly because they were exposed closer to moulting. High mortality of shrimp larvae exposed to DFB medicated feed, indicates that the use of DFB in salmon aquaculture is a threat to crustacean zooplankton. Other Non-Article Part of Journal/Newspaper northern shrimp Ocean acidification Pandalus borealis University of Leicester: Figshare |
institution |
Open Polar |
collection |
University of Leicester: Figshare |
op_collection_id |
ftleicesterunfig |
language |
unknown |
topic |
Uncategorized Aquaculture Combined effects Diflubenzuron Ocean acidification Ocean warming Pandalus borealis |
spellingShingle |
Uncategorized Aquaculture Combined effects Diflubenzuron Ocean acidification Ocean warming Pandalus borealis R. K. Bechmann E. Lyng S. Westerlund S. Bamber M. Berry M. Arnberg A. Kringstad P. Calosi Paul J. Seear Early life stages of Northern shrimp (Pandalus borealis) are sensitive to fish feed containing the anti-parasitic drug diflubenzuron. |
topic_facet |
Uncategorized Aquaculture Combined effects Diflubenzuron Ocean acidification Ocean warming Pandalus borealis |
description |
Increasing use of fish feed containing the chitin synthesis inhibiting anti-parasitic drug diflubenzuron (DFB) in salmon aquaculture has raised concerns over its impact on coastal ecosystems. Larvae of Northern shrimp (Pandalus borealis) were exposed to DFB medicated feed under Control conditions (7.0 °C, pH 8.0) and under Ocean Acidification and Warming conditions (OAW, 9.5 °C and pH 7.6). Two weeks' exposure to DFB medicated feed caused significantly increased mortality. The effect of OAW and DFB on mortality of shrimp larvae was additive; 10% mortality in Control, 35% in OAW, 66% in DFB and 92% in OAW + DFB. In OAW + DFB feeding and swimming activity were reduced for stage II larvae and none of the surviving larvae developed to stage IV. Two genes involved in feeding (GAPDH and PRLP) and one gene involved in moulting (DD9B) were significantly downregulated in larvae exposed to OAW + DFB relative to the Control. Due to a shorter intermoult period under OAW conditions, the OAW + DFB larvae were exposed throughout two instead of one critical pre-moult period. This may explain the more serious sub-lethal effects for OAW + DFB than DFB larvae. A single day exposure at 4 days after hatching did not affect DFB larvae, but high mortality was observed for OAW + DFB larvae, possibly because they were exposed closer to moulting. High mortality of shrimp larvae exposed to DFB medicated feed, indicates that the use of DFB in salmon aquaculture is a threat to crustacean zooplankton. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
R. K. Bechmann E. Lyng S. Westerlund S. Bamber M. Berry M. Arnberg A. Kringstad P. Calosi Paul J. Seear |
author_facet |
R. K. Bechmann E. Lyng S. Westerlund S. Bamber M. Berry M. Arnberg A. Kringstad P. Calosi Paul J. Seear |
author_sort |
R. K. Bechmann |
title |
Early life stages of Northern shrimp (Pandalus borealis) are sensitive to fish feed containing the anti-parasitic drug diflubenzuron. |
title_short |
Early life stages of Northern shrimp (Pandalus borealis) are sensitive to fish feed containing the anti-parasitic drug diflubenzuron. |
title_full |
Early life stages of Northern shrimp (Pandalus borealis) are sensitive to fish feed containing the anti-parasitic drug diflubenzuron. |
title_fullStr |
Early life stages of Northern shrimp (Pandalus borealis) are sensitive to fish feed containing the anti-parasitic drug diflubenzuron. |
title_full_unstemmed |
Early life stages of Northern shrimp (Pandalus borealis) are sensitive to fish feed containing the anti-parasitic drug diflubenzuron. |
title_sort |
early life stages of northern shrimp (pandalus borealis) are sensitive to fish feed containing the anti-parasitic drug diflubenzuron. |
publishDate |
2018 |
url |
https://figshare.com/articles/journal_contribution/Early_life_stages_of_Northern_shrimp_Pandalus_borealis_are_sensitive_to_fish_feed_containing_the_anti-parasitic_drug_diflubenzuron_/10230959 |
genre |
northern shrimp Ocean acidification Pandalus borealis |
genre_facet |
northern shrimp Ocean acidification Pandalus borealis |
op_relation |
2381/41702 https://figshare.com/articles/journal_contribution/Early_life_stages_of_Northern_shrimp_Pandalus_borealis_are_sensitive_to_fish_feed_containing_the_anti-parasitic_drug_diflubenzuron_/10230959 |
op_rights |
CC BY-NC-ND 4.0 |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766146099960086528 |