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Importance of Floodplain Connectivity to Fish Populations in the Apalachicola River, Florida

Permanent Link: http://ufdc.ufl.edu/UFE0022732/00001

Material Information

Title: Importance of Floodplain Connectivity to Fish Populations in the Apalachicola River, Florida
Physical Description: 1 online resource (82 p.)
Language: english
Creator: Burgess, Oliver
Publisher: University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 2008

Subjects

Subjects / Keywords: apalachicola, connectivity, floodplain, flow, habitat, lotic, movement, regime, restoration, river, spawning, telemetry
Fisheries and Aquatic Sciences -- Dissertations, Academic -- UF
Genre: Fisheries and Aquatic Sciences thesis, M.S.
bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract: Lotic fishes are widely believed to use floodplain systems as spawning and rearing habitats. The perception that floodplain habitats are important for fish recruitment has led to river restoration projects which focus on restoring altered rivers to the natural flow patterns including the seasonal inundation of floodplain systems. Few studies have documented the home ranges of lotic fishes to assess the value of floodplains and fewer studies have linked the spatial and temporal uses of floodplain habitat with spawning events. Additionally, no studies have determined if fish populations in floodplains and floodplain tributaries are independent of populations in the mainstem river. The purpose of this study was to investigate the importance of floodplain channel-mainstem river connectivity to lotic fishes in the Apalachicola River, Florida and the associated implications to fish population management and habitat restoration plans in this system. Results of this study show that some individuals of each studied species used both mainstem and floodplain channel habitats. Additionally, the timing of movement and habitat use of each species corresponded with the collection of larvae of each respective species. Micropterus spp., Lepomis spp., and to a lesser degree Minytrema melanops were found to use historical floodplain channel habitat that was reconnected to the mainstem as a spawning site within a few weeks of completing the restoration. This result is of interest to managers working in this system because it implies that at least some species will utilize reconnected backwater habitat as a spawning ground, which was a key motivation for restoration activities.
General Note: In the series University of Florida Digital Collections.
General Note: Includes vita.
Bibliography: Includes bibliographical references.
Source of Description: Description based on online resource; title from PDF title page.
Source of Description: This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Statement of Responsibility: by Oliver Burgess.
Thesis: Thesis (M.S.)--University of Florida, 2008.
Local: Adviser: Pine, William.

Record Information

Source Institution: UFRGP
Rights Management: Applicable rights reserved.
Classification: lcc - LD1780 2008
System ID: UFE0022732:00001

Permanent Link: http://ufdc.ufl.edu/UFE0022732/00001

Material Information

Title: Importance of Floodplain Connectivity to Fish Populations in the Apalachicola River, Florida
Physical Description: 1 online resource (82 p.)
Language: english
Creator: Burgess, Oliver
Publisher: University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 2008

Subjects

Subjects / Keywords: apalachicola, connectivity, floodplain, flow, habitat, lotic, movement, regime, restoration, river, spawning, telemetry
Fisheries and Aquatic Sciences -- Dissertations, Academic -- UF
Genre: Fisheries and Aquatic Sciences thesis, M.S.
bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract: Lotic fishes are widely believed to use floodplain systems as spawning and rearing habitats. The perception that floodplain habitats are important for fish recruitment has led to river restoration projects which focus on restoring altered rivers to the natural flow patterns including the seasonal inundation of floodplain systems. Few studies have documented the home ranges of lotic fishes to assess the value of floodplains and fewer studies have linked the spatial and temporal uses of floodplain habitat with spawning events. Additionally, no studies have determined if fish populations in floodplains and floodplain tributaries are independent of populations in the mainstem river. The purpose of this study was to investigate the importance of floodplain channel-mainstem river connectivity to lotic fishes in the Apalachicola River, Florida and the associated implications to fish population management and habitat restoration plans in this system. Results of this study show that some individuals of each studied species used both mainstem and floodplain channel habitats. Additionally, the timing of movement and habitat use of each species corresponded with the collection of larvae of each respective species. Micropterus spp., Lepomis spp., and to a lesser degree Minytrema melanops were found to use historical floodplain channel habitat that was reconnected to the mainstem as a spawning site within a few weeks of completing the restoration. This result is of interest to managers working in this system because it implies that at least some species will utilize reconnected backwater habitat as a spawning ground, which was a key motivation for restoration activities.
General Note: In the series University of Florida Digital Collections.
General Note: Includes vita.
Bibliography: Includes bibliographical references.
Source of Description: Description based on online resource; title from PDF title page.
Source of Description: This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Statement of Responsibility: by Oliver Burgess.
Thesis: Thesis (M.S.)--University of Florida, 2008.
Local: Adviser: Pine, William.

Record Information

Source Institution: UFRGP
Rights Management: Applicable rights reserved.
Classification: lcc - LD1780 2008
System ID: UFE0022732:00001


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Full Text

PAGE 9

Micropterus Minytrema melanops Lepomis Micropterus Minytrema melanops Lepomis

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Micropterus Lepomis Minytrema melanops

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Introduction

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Background Study Site

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Acipenser oxyrinchus desotoi Morone saxatilis

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Study Species Micropterus Ictalurus Lepomis Micropterus salmoides Micropterus punctulatus

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Minytrema melanops Lepomis microlophus Ictalurus punctatus

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Methods Movement and Habitat Use Tagging and Telemetry

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Seasonal Habitat Use and Tagged Species Proportion i,j i j i,j i j i j ji jin n H

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j i i,j j i j i i,j i j i jiH PjiH

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Home Range Estimation

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h h

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Larval Fish Abundance and Spawn Timing Larval Fish Collection

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Determining Spawn Timing

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-90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 Dec-06 Feb-07 Apr-07 Jun-07 Aug-07Distance (km) SPSK 2068 SPSK 2073 -3 22-Apr-07 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 25-Mar-07 1-Apr-07 8-Apr-07 15-Apr-07Distance (km) SPSK 2064 SPSK 3043

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Results Habitat Use

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Proportion of Tagged Adult Species in Flood plain Channel and Mainstem River Habitats Micropterus

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Micropterus Micropterus

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Broad Movement Categories and M aximum Linear Range of Species

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Habitat Use and the Relationship of Habitat Use with Linear Range

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Micropterus Home Ranges

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Larval Fish Abundance Micropterus Micropterus Lepomis Micropterus Micropterus Micropterus

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Lepomis Lepomis Lepomis Lepomis

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Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus

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Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus

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Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus

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Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus

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Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus

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Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus

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A B C

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Micropterus

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Minytrema melanops Minytrema melanops

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Lepomis Lepomis

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Micropterus Micropterus

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Minytrema melanops Minytremamelanops

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Lepomis Lepomis

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Discussion Characterization of Mainstem River and Floodplain Channel Habitat Use by Tagged Adult Species

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Micropterus

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Characterization of Move ment by Tagged Species

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Lepomis Lepomis

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Larval Catches and Spawn Timing Micropterus Micropterus Micropterus Micropterus

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Lepomis Lepomis Lepomis Lepomis Lepomis Lepomis Lepomis Lepomis

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Micropterus Lepomis Summary of the Importance of Floodplain Channel Connectivity

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Micropterus Lepomis Minytrema melanops

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Discharge (cfs) Temperature (C)

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Mont Discharge (cfs) h

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Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus

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Lepomis microlophus Micropterus salmoides Micropterus punctulatus Minytrema melanops Ictalurus punctatus

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Plectropomus leopardus