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Article ; Online: Movement of Paddlefish once past a lock‐and‐dam structure on the Alabama River

Thomas, Byron D. / DeVries, Dennis R. / Wright, Russell A. / Catalano, Matthew J.

Transactions of the American Fisheries Society. 2024 Jan., v. 153, no. 1 p.74-92

2024

Abstract: OBJECTIVE: Movement of fish past dams can be facilitated by dedicated fish passage structures, navigational locks, and crested spillways, with the efficacy of a passage structure depending strongly on the nature of the system (height of the dam, flow ... ...

Abstract	OBJECTIVE: Movement of fish past dams can be facilitated by dedicated fish passage structures, navigational locks, and crested spillways, with the efficacy of a passage structure depending strongly on the nature of the system (height of the dam, flow rate, etc.) and the fish's behavior and swimming capability. However, once the fish have passed a dam, whether by using a mitigation structure or due to active translocation, they encounter a different habitat upstream versus in the tailrace, potentially affecting their ability to continue their upstream migration. METHODS: Here, we had two objectives. First, we determined whether Paddlefish Polyodon spathula that successfully passed a structure continued their upstream migration in the Alabama River. Because assuring passage by tagged fish required that we move the fish past the dam, our second objective was to determine whether translocated fish exhibited fallback behavior (downstream drift or movement postrelease that would compromise their continued migration). We used both active and passive telemetry methods to quantify the postpassage movements of tagged and translocated Paddlefish. RESULT: Fish that were translocated above Claiborne Lock and Dam (CLD) exhibited upriver movements once translocated, and they exhibited no fallback (i.e., downstream movement with delayed or no continuation upstream). Timing of movement relative to spawning periods did not influence initial fish movement or the likelihood of reaching the next upstream dam (Millers Ferry Lock and Dam [MFLD]; ~100 river kilometers upstream) within the first 30 days of observation, but more fish that were tagged and released during the early prespawn period made it to within 4.83 km of MFLD (the location of our closest receiver below MFLD) relative to fish from the prespawn or spawning period. Fish that were released above CLD had a lower probability of being subsequently detected downstream of their release sites compared to fish that were released below CLD. CONCLUSION: Our findings support that Paddlefish will continue their upstream migration once they have passed a structure, despite changes in habitat.
Keywords	Polyodon spathula ; fish ; habitats ; probability ; rivers ; telemetry ; Alabama
Language	English
Dates of publication	2024-01
Size	p. 74-92.
Publishing place	John Wiley & Sons, Ltd
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	416724-7
ISSN	0002-8487
ISSN	0002-8487
DOI	10.1002/tafs.10447
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Incorporating Time‐Lapse Digital Cameras into Creel Surveys at Three Alabama Reservoirs

Eckelbecker, Robert W. / Coleman, Tyler Steven / Catalano, Matthew J.

North American Journal of Fisheries Management. 2022 Oct., v. 42, no. 5 p.1349-1358

2022

Abstract: We compared different creel survey methods at three Alabama reservoirs (Harris, Jordan, and Mitchell) to identify approaches that could improve precision. We were particularly interested in whether boat trailer counts from time‐lapse photos taken at boat ...

Abstract	We compared different creel survey methods at three Alabama reservoirs (Harris, Jordan, and Mitchell) to identify approaches that could improve precision. We were particularly interested in whether boat trailer counts from time‐lapse photos taken at boat ramp parking lots could be used as an index of fishing effort to improve the temporal coverage of sampling. Angler effort was estimated independently using roving creels, access point creels, and aerial census counts and compared with fixed‐location digital camera images of trailers at boat ramps. Digital camera counts of trailers correlated with angler effort from aerial census, access point creel surveys, and roving creel surveys. This finding suggests that time‐lapse digital cameras as a sampling method to obtain angler effort may provide a feasible method once calibrated to a system. Best‐fitting models for relationships between time‐lapse trailer counts and the other creel methods included covariates for season and day type (weekend versus weekday) effects, but not reservoir and time‐of‐day effects. The inclusion of effort predicted from time‐lapse digital cameras incorporated with roving creel surveys did not statistically affect the magnitude of effort estimates but substantially increased the precision of effort estimates.
Keywords	administrative management ; aerial surveys ; boats ; cameras ; Alabama ; Jordan
Language	English
Dates of publication	2022-10
Size	p. 1349-1358.
Publishing place	John Wiley & Sons, Ltd
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	779391-1
ISSN	0275-5947
ISSN	0275-5947
DOI	10.1002/nafm.10828
Database	NAL-Catalogue (AGRICOLA)

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Article: Incorporating demographic information into spawner–recruit analyses alters biological reference point estimates for a western Alaska salmon population

Staton, Benjamin A. / Catalano, Matthew J. / Fleischman, Steven J. / Ohlberger, Jan

Canadian journal of fisheries and aquatic sciences. 2021, v. 78, no. 12

2021

Abstract: Changes over time in age, sex, and length-at-age of returning Pacific salmon have been widely observed, suggesting concurrent declines in per capita reproductive output. Thus, assessment models assuming stationary reproductive output may inaccurately ... ...

Abstract	Changes over time in age, sex, and length-at-age of returning Pacific salmon have been widely observed, suggesting concurrent declines in per capita reproductive output. Thus, assessment models assuming stationary reproductive output may inaccurately estimate biological reference points that inform harvest policies. We extended age-structured state-space spawner–recruit models to accommodate demographic time trends and fishery selectivity to investigate temporal changes in reference points using Kuskokwim River Chinook salmon (Oncorhynchus tshawytscha). We illustrate that observed demographic changes have likely reduced per capita reproductive output in an additive manner, for example, models including changes in both length-at-age and age composition showed larger declines than models incorporating only one time trend. Translated into biological reference points using a yield-per-recruit algorithm, we found escapement needed for maximum sustained catch has likely increased over time, but the magnitude further depended on size-selective harvest (i.e., larger increases for reference points based on larger mesh gillnets). Compared to traditional salmon assessments, our approach that acknowledges demographic time trends allows more complete use of available data and facilitates evaluating trade-offs among gear-specific harvest policies.
Keywords	Oncorhynchus tshawytscha ; algorithms ; fisheries ; gillnets ; reproductive performance ; rivers ; salmon ; Alaska
Language	English
Size	p. 1755-1769.
Publishing place	NRC Research Press
Document type	Article
ZDB-ID	1473089-3
ISSN	1205-7533 ; 0706-652X
ISSN (online)	1205-7533
ISSN	0706-652X
DOI	10.1139/cjfas-2020-0478
Database	NAL-Catalogue (AGRICOLA)

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Article: Spatial and temporal patterns of covariation in productivity of Chinook salmon populations of the northeastern Pacific Ocean

Dorner, Brigitte / Catalano, Matthew J / Peterman, Randall M

Canadian journal of fisheries and aquatic sciences. 2018, v. 75, no. 7

2018

Abstract: We expand on previous analyses of environmental factors related to productivity of Chinook salmon (Oncorhynchus tshawytscha) populations by analysing data on adult recruits per spawner from 24 wild (not hatchery) Chinook salmon stocks from Oregon through ...

Abstract	We expand on previous analyses of environmental factors related to productivity of Chinook salmon (Oncorhynchus tshawytscha) populations by analysing data on adult recruits per spawner from 24 wild (not hatchery) Chinook salmon stocks from Oregon through western Alaska. To determine the degree to which changes in productivity are shared and to help identify environmental variables that might be related to those changes, we estimated the magnitude and spatial characteristics of positive correlations in productivity trends among stocks separated by various distances. We used dynamic factor analysis to characterize shared time trends in productivity and found that these trends were most closely associated with the North Pacific Gyre Oscillation and, to a lesser extent, with the location of the bifurcation in the North Pacific Current as it reaches North America’s west coast. Chinook productivity patterns of separate populations have also become more synchronous in recent years, similar to results reported for other species of Pacific salmon. Such recent changes may reduce the resilience of the species to effects of climate change and habitat modification.
Keywords	Oncorhynchus tshawytscha ; adults ; climate change ; coasts ; environmental factors ; factor analysis ; habitats ; hatcheries ; Alaska ; Oregon ; Pacific Ocean
Language	English
Size	p. 1082-1095.
Publishing place	NRC Research Press
Document type	Article
ZDB-ID	1473089-3
ISSN	1205-7533 ; 0706-652X
ISSN (online)	1205-7533
ISSN	0706-652X
DOI	10.1139/cjfas-2017-0197
Database	NAL-Catalogue (AGRICOLA)

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Article: Weak Effects of Density on Mean Length at Age and Condition of Largemouth Bass at Large Alabama Reservoirs

Catalano, Matthew J. / Farmer, Troy M.

North American journal of fisheries management. 2018 Apr., v. 38, no. 2

2018

Abstract: We examined evidence for density‐dependent growth of Largemouth Bass Micropterus salmoides in the recruited life stage (age 2 and older) at eight large (>4,000 ha) Alabama reservoirs from standardized electrofishing survey data. Using mean length at age ... ...

Abstract	We examined evidence for density‐dependent growth of Largemouth Bass Micropterus salmoides in the recruited life stage (age 2 and older) at eight large (>4,000 ha) Alabama reservoirs from standardized electrofishing survey data. Using mean length at age as a measure of cumulative growth and electrofishing catch rates as the basis for a cumulative index of density, we found weak support for the hypothesis that mean length at age was inversely related to Largemouth Bass density. The mean length at age of age‐5 Largemouth Bass was positively related to the cumulative density index, which is inconsistent with the prediction of an inverse association under compensatory density dependence. Moreover, the strength of the effect was weak, with a 9‐mm increase in mean length at age per 100% increase in the density index. No other age‐classes (ages 2 through 6 were examined) exhibited density‐dependent mean length at age. Similarly, relative weight was unrelated to the density index. Analyses of changes in mean length at age, relative weight, and the density index over time indicate that each of these variables have increased slightly since the mid‐1990s for some age‐classes. Our analysis of Largemouth Bass mean length at age at these reservoirs suggests that strong density‐dependent growth responses are unlikely in the recruited life stage at these large reservoir systems. If this is the case, implementing minimum length limits at these reservoirs is likely to avoid unintended negative consequences for Largemouth Bass growth and size structure.
Keywords	Micropterus salmoides ; administrative management ; prediction ; surveys ; Alabama
Language	English
Dates of publication	2018-04
Size	p. 281-294.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	779391-1
ISSN	0275-5947
ISSN	0275-5947
DOI	10.1002/nafm.10016
Database	NAL-Catalogue (AGRICOLA)

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Article: Harvest-Induced Size Structure Shifts Alter Nutrient Release by a Population of Omnivorous Fish

Catalano, Matthew J / Maynard H. Schaus

Transactions of the American Fisheries Society. 2016 May 3, v. 145, no. 3

2016

Abstract: Fish body size can have important consequences for physiological factors, such as feeding, respiration, and nutrient excretion. Thus, the size structure of a fish population can greatly impact its role in lake nutrient cycles. We examined how shifts in ... ...

Abstract	Fish body size can have important consequences for physiological factors, such as feeding, respiration, and nutrient excretion. Thus, the size structure of a fish population can greatly impact its role in lake nutrient cycles. We examined how shifts in body size influenced phosphorus cycling by Gizzard Shad Dorosoma cepedianum in Lake Dora, Florida, which underwent a size-selective fish harvest during 2005 and 2006. We combined a size-structured stock assessment model with excretion prediction coefficients to determine how shifts in population biomass and size distribution affected nutrient cycling. The harvest selectively removed larger Gizzard Shad, reducing the population biomass by 29.4% during the 2 years after removal, and shifted the population toward predominance by smaller size-classes. However, phosphorus excretion decreased by only 19.7% during this period because smaller fish excreted more P/g of body size. Three years following the harvest, biomass averaged 8.0% below the pre-harvest average, but phosphorus release returned to near the baseline average in approximately 1 year. Our results indicate that size shifts that accompany many biomanipulation efforts may offset some of the reductions in internal nutrient cycling. Received August 26, 2015; accepted January 11, 2016 Published online April 27, 2016
Keywords	biogeochemical cycles ; biomass ; body size ; Dorosoma cepedianum ; excretion ; fish ; lakes ; models ; omnivores ; phosphorus ; prediction ; Florida
Language	English
Dates of publication	2016-0503
Size	p. 637-648.
Publishing place	Taylor & Francis
Document type	Article
ISSN	1548-8659
DOI	10.1080/00028487.2016.1143399
Database	NAL-Catalogue (AGRICOLA)

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Article: Foraging ecology mediates response to ecological mismatch during migratory stopover

Tucker, Anna M / Catalano, Matthew J / DeRose‐Wilson, Audrey / McGowan, Conor P / Robinson, Robert A / Zimmerman, Jordan

Ecosphere. 2019 Oct., v. 10, no. 10

2019

Abstract: Impacts of ecological mismatches should be most pronounced at points of the annual cycle when populations depend on a predictable, abundant, and aggregated food resource that changes in timing or distribution. The degree to which species specialize on a ... ...

Abstract	Impacts of ecological mismatches should be most pronounced at points of the annual cycle when populations depend on a predictable, abundant, and aggregated food resource that changes in timing or distribution. The degree to which species specialize on a key prey item, therefore, should determine their sensitivity to mismatches. We evaluated the hypothesis that the effects of ecological mismatch during migratory stopover are mediated by a species’ foraging ecology by comparing two similar long‐distance migratory species that differ in their foraging strategies during stopover. We predicted that a specialist foraging strategy would make species more sensitive to effects of mismatch with a historically abundant prey, while an active, generalist foraging strategy should help buffer against changing local conditions. We estimated arrival times, start of mass gain, and rate of mass gain during spring stopover in Delaware Bay, USA. At this site, shorebirds feed on a temporally aggregated food resource (horseshoe crab Limulus polyphemus eggs), the timing of which is linked to water temperature; red knot (Calidris canutus rufa) specializes on these while the ruddy turnstone (Arenaria interpres) feeds more generally. We used a hierarchical nonlinear model to estimate the effect of mismatch between shorebird arrivals and timing of crab spawning on the timing and rate of mass gain over 22 yr. In years with cooler water temperature, crabs spawned later, which was associated with later and faster mass gain for the knots. Turnstones exhibited less inter‐annual variation in the timing and rate of mass gain than knots, and we found no relationship between mass gain dynamics and the availability of horseshoe crab eggs for this generalist species. Long‐distance migrants rely on predictable resources en route and even when these linkages are simple and predictable, populations can be vulnerable to change; these results suggest that generalist foraging strategies may buffer migratory species against phenological mismatch. We provide a framework to evaluate population responses to changes in prey phenology at sites vulnerable to climatic change.
Keywords	Arenaria interpres ; Calidris canutus ; climate change ; crabs ; eggs ; foraging ; Limulus polyphemus ; migratory behavior ; migratory species ; nonlinear models ; phenology ; spawning ; spring ; water temperature ; Delaware Bay ; United States
Language	English
Dates of publication	2019-10
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	2572257-8
ISSN	2150-8925
ISSN	2150-8925
DOI	10.1002/ecs2.2898
Database	NAL-Catalogue (AGRICOLA)

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Article: Evaluation of two methods for indexing fish year-class strength: Catch-curve residuals and cohort method

Tetzlaff, Jakob C / Catalano, Matthew J / Allen, Micheal S / Pine, William E., III

Fisheries research. 2011 May, v. 109, no. 2-3

2011

Abstract: Assessment of fish year-class strength is often a key objective of fish monitoring programs. We used a simulation model to assess the performance of two methods for indexing fish year-class strength from catch-at-age data on adult fish populations: catch- ...

Abstract	Assessment of fish year-class strength is often a key objective of fish monitoring programs. We used a simulation model to assess the performance of two methods for indexing fish year-class strength from catch-at-age data on adult fish populations: catch-curve residuals and tracking cohorts through time. For this comparison we used three performance metrics: correlation with true recruitment values, ability to identify strong and weak year classes, and prediction of relative year-class strength. Both the catch curve and the cohort methods provided reliable indices of recruitment under some conditions. The catch curve method provided reliable evidence for very strong or weak year classes, whereas the cohort method expectedly was able to reliably index year class strength for even moderate fluctuations in year class strength, and thus would provide managers with more detailed and reliable information about year class strength. However, the cohort method required multiple years of age composition data, whereas the catch curve method requires only one year of data. In addition, performance of the cohort method was reduced when variation in annual sampling catchability was high. Our simulation approach allowed for a detailed understanding of the strengths, weaknesses, and data requirements of both methods. While both methods provide information that is useful for fisheries management, appropriate application of either method for monitoring should depend on management needs, funding availability, and system characteristics.
Keywords	adults ; fish ; fisheries management ; funding ; managers ; monitoring ; prediction ; simulation models
Language	English
Dates of publication	2011-05
Size	p. 303-310.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	406532-3
ISSN	0165-7836
ISSN	0165-7836
DOI	10.1016/j.fishres.2011.02.017
Database	NAL-Catalogue (AGRICOLA)

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Article: Simulation-Based Evaluation of In-Season Management Tactics for Anadromous Fisheries: Accounting for Risk in the Yukon River Fall Chum Salmon Fishery

Catalano, Matthew J. / Jones, Michael L.

North American journal of fisheries management

Volume v. 34,, Issue no. 6

Abstract: Salmon fisheries are managed under uncertainties in abundance, population dynamics, and fishery implementation. These uncertainties create risk, which can be accounted for using probabilistic harvest control rules. Probabilistic control rules ensure ... ...

Abstract	Salmon fisheries are managed under uncertainties in abundance, population dynamics, and fishery implementation. These uncertainties create risk, which can be accounted for using probabilistic harvest control rules. Probabilistic control rules ensure management actions are consistent with the level of acceptable risk. Within a fishing season, managers seek to meet escapement objectives by using preseason forecasts and in-season data to set fishery openings and catch targets. We used a stochastic simulation model of the Yukon River fall Chum Salmon Oncorhynchus keta fishery to evaluate the effects on fishery performance of (1) the degree of in-season risk tolerance and (2) two methods for estimating daily abundance projections. We defined risk in terms of the probability of failing to meet escapement objectives, which is consistent with the emphasis on meeting escapement objectives in Alaska's Sustainable Salmon Fisheries Policy. The analysis revealed expected trade-offs between harvest and escapement objectives. However, risk tolerance did not strongly influence fishery performance mainly because outcomes were highly uncertain due to process errors. Average subsistence harvest decreased from 97,000 to 88,000 Chum Salmon and the probability of failing to meet escapement goals in four of the five most recent years decreased from 0.04 to 0.01 when a risk-averse approach was implemented. However, when preseason forecasts were relatively low and close to thresholds where no fishing would be allowed, then a risk-averse approach increased the probability of meeting escapement objectives. A Bayesian approach to estimating the projected run abundance performed similarly to a simpler approach that relied entirely on the preseason forecast until the average first quarter point of the run. Our results suggest that assessment approaches and the degree of in-season risk tolerance are likely less important in determining fishery performance for Yukon River Fall Chum Salmon than are the escapement goals used to manage the fishery.
Keywords	data collection ; fisheries ; managers ; issues and policy ; fisheries management ; simulation models ; rivers ; acceptable risk ; uncertainty ; population dynamics ; Oncorhynchus keta ; Bayesian theory
Language	English
Document type	Article
ISSN	1548-8675
Database	AGRIS - International Information System for the Agricultural Sciences and Technology

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