Anadromous Sea Lampreys Recolonize a Maine Coastal River Tributary after Dam Removal
Abstract Sedgeunkedunk Stream, a third‐order tributary to the Penobscot River, Maine, historically supported several anadromous fishes, including the Atlantic Salmon Salmo salar , Alewife Alosa pseudoharengus , and Sea Lamprey Petromyzon marinus . However, two small dams constructed in the 1800s red...
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crwiley:10.1080/00028487.2013.811103 2024-09-09T19:30:51+00:00 Anadromous Sea Lampreys Recolonize a Maine Coastal River Tributary after Dam Removal Hogg, Robert Coghlan, Stephen M. Zydlewski, Joseph Michigan State University National Oceanic and Atmospheric Administration University of Maine 2013 http://dx.doi.org/10.1080/00028487.2013.811103 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2013.811103 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 142, issue 5, page 1381-1394 ISSN 0002-8487 1548-8659 journal-article 2013 crwiley https://doi.org/10.1080/00028487.2013.811103 2024-06-20T04:23:08Z Abstract Sedgeunkedunk Stream, a third‐order tributary to the Penobscot River, Maine, historically supported several anadromous fishes, including the Atlantic Salmon Salmo salar , Alewife Alosa pseudoharengus , and Sea Lamprey Petromyzon marinus . However, two small dams constructed in the 1800s reduced or eliminated spawning runs entirely. In 2009, efforts to restore marine–freshwater connectivity in the system culminated with removal of the lowermost dam, thus providing access to an additional 4.6 km of lotic habitat. Because Sea Lampreys utilized accessible habitat prior to dam removal, they were chosen as a focal species with which to quantify recolonization. During spawning runs of 2008–2011 (before and after dam removal), individuals were marked with PIT tags and their activity was tracked with daily recapture surveys. Open‐population mark–recapture models indicated a fourfold increase in the annual abundance of spawning‐phase Sea Lampreys, with estimates rising from 59±4 ( ) before dam removal (2008) to 223±18 and 242±16 after dam removal (2010 and 2011, respectively). Accompanying the marked increase in annual abundance was a greater than fourfold increase in nesting sites: the number of nests increased from 31 in 2008 to 128 and 131 in 2010 and 2011, respectively. During the initial recolonization event (i.e., in 2010), Sea Lampreys took 6 d to move past the former dam site and 9 d to expand into the furthest upstream reaches. Conversely, during the 2011 spawning run, Sea Lampreys took only 3 d to penetrate into the upstream reaches, thus suggesting a potential positive feedback in which larval recruitment into the system may have attracted adult spawners via conspecific pheromone cues. Although more research is needed to verify the migratory pheromone hypothesis, our study clearly demonstrates that small‐stream dam removal in coastal river systems has the potential to enhance recovery of declining anadromous fish populations. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Transactions of the American Fisheries Society 142 5 1381 1394 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Sedgeunkedunk Stream, a third‐order tributary to the Penobscot River, Maine, historically supported several anadromous fishes, including the Atlantic Salmon Salmo salar , Alewife Alosa pseudoharengus , and Sea Lamprey Petromyzon marinus . However, two small dams constructed in the 1800s reduced or eliminated spawning runs entirely. In 2009, efforts to restore marine–freshwater connectivity in the system culminated with removal of the lowermost dam, thus providing access to an additional 4.6 km of lotic habitat. Because Sea Lampreys utilized accessible habitat prior to dam removal, they were chosen as a focal species with which to quantify recolonization. During spawning runs of 2008–2011 (before and after dam removal), individuals were marked with PIT tags and their activity was tracked with daily recapture surveys. Open‐population mark–recapture models indicated a fourfold increase in the annual abundance of spawning‐phase Sea Lampreys, with estimates rising from 59±4 ( ) before dam removal (2008) to 223±18 and 242±16 after dam removal (2010 and 2011, respectively). Accompanying the marked increase in annual abundance was a greater than fourfold increase in nesting sites: the number of nests increased from 31 in 2008 to 128 and 131 in 2010 and 2011, respectively. During the initial recolonization event (i.e., in 2010), Sea Lampreys took 6 d to move past the former dam site and 9 d to expand into the furthest upstream reaches. Conversely, during the 2011 spawning run, Sea Lampreys took only 3 d to penetrate into the upstream reaches, thus suggesting a potential positive feedback in which larval recruitment into the system may have attracted adult spawners via conspecific pheromone cues. Although more research is needed to verify the migratory pheromone hypothesis, our study clearly demonstrates that small‐stream dam removal in coastal river systems has the potential to enhance recovery of declining anadromous fish populations. |
author2 |
Michigan State University National Oceanic and Atmospheric Administration University of Maine |
format |
Article in Journal/Newspaper |
author |
Hogg, Robert Coghlan, Stephen M. Zydlewski, Joseph |
spellingShingle |
Hogg, Robert Coghlan, Stephen M. Zydlewski, Joseph Anadromous Sea Lampreys Recolonize a Maine Coastal River Tributary after Dam Removal |
author_facet |
Hogg, Robert Coghlan, Stephen M. Zydlewski, Joseph |
author_sort |
Hogg, Robert |
title |
Anadromous Sea Lampreys Recolonize a Maine Coastal River Tributary after Dam Removal |
title_short |
Anadromous Sea Lampreys Recolonize a Maine Coastal River Tributary after Dam Removal |
title_full |
Anadromous Sea Lampreys Recolonize a Maine Coastal River Tributary after Dam Removal |
title_fullStr |
Anadromous Sea Lampreys Recolonize a Maine Coastal River Tributary after Dam Removal |
title_full_unstemmed |
Anadromous Sea Lampreys Recolonize a Maine Coastal River Tributary after Dam Removal |
title_sort |
anadromous sea lampreys recolonize a maine coastal river tributary after dam removal |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1080/00028487.2013.811103 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2013.811103 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Transactions of the American Fisheries Society volume 142, issue 5, page 1381-1394 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1080/00028487.2013.811103 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
142 |
container_issue |
5 |
container_start_page |
1381 |
op_container_end_page |
1394 |
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1809899827012567040 |