Impact of Pulsed Direct Current on Embryos, Larvae, and Young Juveniles of Atlantic Cod and its Implications for Electrotrawling of Brown Shrimp
The application of electrical pulses in fishing gear is considered a promising option to increase the sustainability of demersal trawl fisheries. In the electrotrawl fishery for brown shrimp Crangon crangon , an electrical field selectively induces a startle response in the shrimp. Other benthic org...
Main Authors: | , , , , , , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
Taylor & Francis
2017
|
Subjects: | |
Online Access: | https://dx.doi.org/10.6084/m9.figshare.5284216 https://tandf.figshare.com/articles/journal_contribution/Impact_of_Pulsed_Direct_Current_on_Embryos_Larvae_and_Young_Juveniles_of_Atlantic_Cod_and_its_Implications_for_Electrotrawling_of_Brown_Shrimp/5284216/1 |
id |
ftdatacite:10.6084/m9.figshare.5284216 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.6084/m9.figshare.5284216 2023-05-15T15:27:04+02:00 Impact of Pulsed Direct Current on Embryos, Larvae, and Young Juveniles of Atlantic Cod and its Implications for Electrotrawling of Brown Shrimp Desender, Marieke Decostere, Annemie Adriaens, Dominique Duchateau, Luc Mortensen, Atle Polet, Hans Velmurugu Puvanendran Verschueren, Bart Chiers, Koen 2017 https://dx.doi.org/10.6084/m9.figshare.5284216 https://tandf.figshare.com/articles/journal_contribution/Impact_of_Pulsed_Direct_Current_on_Embryos_Larvae_and_Young_Juveniles_of_Atlantic_Cod_and_its_Implications_for_Electrotrawling_of_Brown_Shrimp/5284216/1 unknown Taylor & Francis https://dx.doi.org/10.1080/19425120.2017.1321592 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Genetics FOS Biological sciences Physiology Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Developmental Biology Inorganic Chemistry FOS Chemical sciences Text article-journal Journal contribution ScholarlyArticle 2017 ftdatacite https://doi.org/10.6084/m9.figshare.5284216 https://doi.org/10.1080/19425120.2017.1321592 2021-11-05T12:55:41Z The application of electrical pulses in fishing gear is considered a promising option to increase the sustainability of demersal trawl fisheries. In the electrotrawl fishery for brown shrimp Crangon crangon , an electrical field selectively induces a startle response in the shrimp. Other benthic organisms remain mainly on the seafloor and escape underneath a hovering trawl. Previous experiments have indicated that this pulse has no short-term major harmful effects on adult fish and invertebrates. However, the impact on young marine life stages is still unknown. Because brown shrimp are caught in shallow coastal zones and estuaries, which serve as important nurseries or spawning areas for a wide range of marine species, electrotrawling on these grounds could harm embryos, larvae, and juveniles. We carried out experiments with different developmental stages of Atlantic Cod Gadus morhua , which are considered vulnerable to electrical pulses. Three embryonic stages, four larval stages, and one juvenile stage of Atlantic Cod were exposed to a homogeneous electrical field of 150 V peak /m for 5 s, mimicking a worst-case scenario. We detected no significant differences in embryo mortality rate between control and exposed groups. However, for the embryonic stage exposed at 18 d postfertilization, the initial hatching rate was lower. Larvae that were exposed at 2 and 26 d posthatch exhibited higher mortality rates than the corresponding nonexposed control groups. In the other larval and juvenile stages, no short-term impact of exposure on survival was observed. Morphometric analysis of larvae and juveniles revealed no differences in measurements or deformations of the yolk, notochord, eye, or head. Although exposure to a worst-case electrical field did not impact survival or development for six of the eight young life stages of Atlantic Cod, the observed delayed hatching rate and decreased survival for larvae might indicate an impact of electric pulses and warrant further research. Received July 20, 2016; accepted April 14, 2017 Text atlantic cod Gadus morhua DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Genetics FOS Biological sciences Physiology Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Developmental Biology Inorganic Chemistry FOS Chemical sciences |
spellingShingle |
Genetics FOS Biological sciences Physiology Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Developmental Biology Inorganic Chemistry FOS Chemical sciences Desender, Marieke Decostere, Annemie Adriaens, Dominique Duchateau, Luc Mortensen, Atle Polet, Hans Velmurugu Puvanendran Verschueren, Bart Chiers, Koen Impact of Pulsed Direct Current on Embryos, Larvae, and Young Juveniles of Atlantic Cod and its Implications for Electrotrawling of Brown Shrimp |
topic_facet |
Genetics FOS Biological sciences Physiology Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Developmental Biology Inorganic Chemistry FOS Chemical sciences |
description |
The application of electrical pulses in fishing gear is considered a promising option to increase the sustainability of demersal trawl fisheries. In the electrotrawl fishery for brown shrimp Crangon crangon , an electrical field selectively induces a startle response in the shrimp. Other benthic organisms remain mainly on the seafloor and escape underneath a hovering trawl. Previous experiments have indicated that this pulse has no short-term major harmful effects on adult fish and invertebrates. However, the impact on young marine life stages is still unknown. Because brown shrimp are caught in shallow coastal zones and estuaries, which serve as important nurseries or spawning areas for a wide range of marine species, electrotrawling on these grounds could harm embryos, larvae, and juveniles. We carried out experiments with different developmental stages of Atlantic Cod Gadus morhua , which are considered vulnerable to electrical pulses. Three embryonic stages, four larval stages, and one juvenile stage of Atlantic Cod were exposed to a homogeneous electrical field of 150 V peak /m for 5 s, mimicking a worst-case scenario. We detected no significant differences in embryo mortality rate between control and exposed groups. However, for the embryonic stage exposed at 18 d postfertilization, the initial hatching rate was lower. Larvae that were exposed at 2 and 26 d posthatch exhibited higher mortality rates than the corresponding nonexposed control groups. In the other larval and juvenile stages, no short-term impact of exposure on survival was observed. Morphometric analysis of larvae and juveniles revealed no differences in measurements or deformations of the yolk, notochord, eye, or head. Although exposure to a worst-case electrical field did not impact survival or development for six of the eight young life stages of Atlantic Cod, the observed delayed hatching rate and decreased survival for larvae might indicate an impact of electric pulses and warrant further research. Received July 20, 2016; accepted April 14, 2017 |
format |
Text |
author |
Desender, Marieke Decostere, Annemie Adriaens, Dominique Duchateau, Luc Mortensen, Atle Polet, Hans Velmurugu Puvanendran Verschueren, Bart Chiers, Koen |
author_facet |
Desender, Marieke Decostere, Annemie Adriaens, Dominique Duchateau, Luc Mortensen, Atle Polet, Hans Velmurugu Puvanendran Verschueren, Bart Chiers, Koen |
author_sort |
Desender, Marieke |
title |
Impact of Pulsed Direct Current on Embryos, Larvae, and Young Juveniles of Atlantic Cod and its Implications for Electrotrawling of Brown Shrimp |
title_short |
Impact of Pulsed Direct Current on Embryos, Larvae, and Young Juveniles of Atlantic Cod and its Implications for Electrotrawling of Brown Shrimp |
title_full |
Impact of Pulsed Direct Current on Embryos, Larvae, and Young Juveniles of Atlantic Cod and its Implications for Electrotrawling of Brown Shrimp |
title_fullStr |
Impact of Pulsed Direct Current on Embryos, Larvae, and Young Juveniles of Atlantic Cod and its Implications for Electrotrawling of Brown Shrimp |
title_full_unstemmed |
Impact of Pulsed Direct Current on Embryos, Larvae, and Young Juveniles of Atlantic Cod and its Implications for Electrotrawling of Brown Shrimp |
title_sort |
impact of pulsed direct current on embryos, larvae, and young juveniles of atlantic cod and its implications for electrotrawling of brown shrimp |
publisher |
Taylor & Francis |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.5284216 https://tandf.figshare.com/articles/journal_contribution/Impact_of_Pulsed_Direct_Current_on_Embryos_Larvae_and_Young_Juveniles_of_Atlantic_Cod_and_its_Implications_for_Electrotrawling_of_Brown_Shrimp/5284216/1 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
https://dx.doi.org/10.1080/19425120.2017.1321592 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.5284216 https://doi.org/10.1080/19425120.2017.1321592 |
_version_ |
1766357524509884416 |