Role of the round goby (Neogobius melanostomus) in the food web of the south-eastern Baltic Sea coastal waters
This study provides the first comprehensive research on the functional role of the invasive round goby in the food web of the SE Baltic Sea coastal ecosystem. The round goby invasion success was determined by evaluating its abundance, morphometric/biological parameters and contribution in the fish c...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | Lithuanian English |
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Online Access: | http://ku.oai.elaba.lt/documents/39072875.pdf http://ku.lvb.lt/KU:ELABAETD39072875&prefLang=en_US |
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ftlitinstagrecon:oai:elaba:39072875 2023-05-15T18:41:14+02:00 Role of the round goby (Neogobius melanostomus) in the food web of the south-eastern Baltic Sea coastal waters Juodažiočio grundalo (Neogobius melanostomus) vaidmuo pietrytinės Baltijos jūros priekrantės mitybos tinkle Skabeikis, Artūras Lesutienė, Jūratė info:eu-repo/date/embargoEnd/2024-06-14 application/pdf http://ku.oai.elaba.lt/documents/39072875.pdf http://ku.lvb.lt/KU:ELABAETD39072875&prefLang=en_US lit eng lit eng Institutional Repository of Klaipeda University http://ku.oai.elaba.lt/documents/39072875.pdf http://ku.lvb.lt/KU:ELABAETD39072875&prefLang=en_US info:eu-repo/semantics/embargoedAccess biotope type invasive species food competition predation ECOPATH model info:eu-repo/semantics/doctoralThesis 1481 ftlitinstagrecon 2021-12-02T00:27:57Z This study provides the first comprehensive research on the functional role of the invasive round goby in the food web of the SE Baltic Sea coastal ecosystem. The round goby invasion success was determined by evaluating its abundance, morphometric/biological parameters and contribution in the fish communities from the stony and sandy biotope types. The diet composition of the round goby and its feeding niche overlap with the native benthophagous flounder, eelpout and vimba bream was evaluated by applying the gut content and stable isotope analyses. The round goby vulnerability to the piscivorous fish was determined by performing the stomach content analysis of the cod, turbot, shorthorn sculpin and perch. The ECOPATH model was employed to reveal the trophic position of differently sized round gobies and their effects to other food web compartments. The results of the present study suggested that the round goby became a key component of the coastal food web. It posed a detrimental impact on the blue mussel population and the wintering site quality of the benthophagous long-tailed ducks, but positively affected piscivorous fish/waterbirds and coastal fishery as an important forage/commercial catch species. Doctoral or Postdoctoral Thesis Turbot LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library) |
institution |
Open Polar |
collection |
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library) |
op_collection_id |
ftlitinstagrecon |
language |
Lithuanian English |
topic |
biotope type invasive species food competition predation ECOPATH model |
spellingShingle |
biotope type invasive species food competition predation ECOPATH model Skabeikis, Artūras Role of the round goby (Neogobius melanostomus) in the food web of the south-eastern Baltic Sea coastal waters |
topic_facet |
biotope type invasive species food competition predation ECOPATH model |
description |
This study provides the first comprehensive research on the functional role of the invasive round goby in the food web of the SE Baltic Sea coastal ecosystem. The round goby invasion success was determined by evaluating its abundance, morphometric/biological parameters and contribution in the fish communities from the stony and sandy biotope types. The diet composition of the round goby and its feeding niche overlap with the native benthophagous flounder, eelpout and vimba bream was evaluated by applying the gut content and stable isotope analyses. The round goby vulnerability to the piscivorous fish was determined by performing the stomach content analysis of the cod, turbot, shorthorn sculpin and perch. The ECOPATH model was employed to reveal the trophic position of differently sized round gobies and their effects to other food web compartments. The results of the present study suggested that the round goby became a key component of the coastal food web. It posed a detrimental impact on the blue mussel population and the wintering site quality of the benthophagous long-tailed ducks, but positively affected piscivorous fish/waterbirds and coastal fishery as an important forage/commercial catch species. |
author2 |
Lesutienė, Jūratė |
format |
Doctoral or Postdoctoral Thesis |
author |
Skabeikis, Artūras |
author_facet |
Skabeikis, Artūras |
author_sort |
Skabeikis, Artūras |
title |
Role of the round goby (Neogobius melanostomus) in the food web of the south-eastern Baltic Sea coastal waters |
title_short |
Role of the round goby (Neogobius melanostomus) in the food web of the south-eastern Baltic Sea coastal waters |
title_full |
Role of the round goby (Neogobius melanostomus) in the food web of the south-eastern Baltic Sea coastal waters |
title_fullStr |
Role of the round goby (Neogobius melanostomus) in the food web of the south-eastern Baltic Sea coastal waters |
title_full_unstemmed |
Role of the round goby (Neogobius melanostomus) in the food web of the south-eastern Baltic Sea coastal waters |
title_sort |
role of the round goby (neogobius melanostomus) in the food web of the south-eastern baltic sea coastal waters |
publisher |
Institutional Repository of Klaipeda University |
publishDate |
1481 |
url |
http://ku.oai.elaba.lt/documents/39072875.pdf http://ku.lvb.lt/KU:ELABAETD39072875&prefLang=en_US |
genre |
Turbot |
genre_facet |
Turbot |
op_relation |
http://ku.oai.elaba.lt/documents/39072875.pdf http://ku.lvb.lt/KU:ELABAETD39072875&prefLang=en_US |
op_rights |
info:eu-repo/semantics/embargoedAccess |
_version_ |
1766230731614322688 |