Transactions of the American Fisheries Society (T AM FISH SOC )

Publisher: American Fisheries Society, American Fisheries Society

Journal description

The Society's highly regarded international journal of fisheries science has been published continuously since 1872. It features results of basic and applied research in genetics, physiology, biology, ecology, population dynamics, economics, health, culture, and other topics germane to marine and freshwater finfish and shellfish and their respective fisheries and environments. Available in print and electronic formats.

Current impact factor: 1.31

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 1.314
2012 Impact Factor 1.546
2011 Impact Factor 1.592
2010 Impact Factor 1.603
2009 Impact Factor 1.256
2008 Impact Factor 1.569
2007 Impact Factor 1.319
2006 Impact Factor 1.386
2005 Impact Factor 1.626
2004 Impact Factor 1.278
2003 Impact Factor 1.327
2002 Impact Factor 1.23
2001 Impact Factor 1
2000 Impact Factor 0.985
1999 Impact Factor 0.827
1998 Impact Factor 1.108
1997 Impact Factor 0.88
1996 Impact Factor 0.846
1995 Impact Factor 0.914
1994 Impact Factor 0.798
1993 Impact Factor 0.851
1992 Impact Factor 0.93

Impact factor over time

Impact factor

Additional details

5-year impact 1.87
Cited half-life 0.00
Immediacy index 0.31
Eigenfactor 0.01
Article influence 0.60
Website Transactions of the American Fisheries Society website
Other titles Transactions of the American Fisheries Society
ISSN 0002-8487
OCLC 6445080
Material type Conference publication, Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

American Fisheries Society

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Conditions
    • On open access repositories
    • Publisher's version/PDF must be used
    • Now published by Taylor & Francis
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Variation of otolith microchemical signatures between natal nurseries from young-of-the-year (age 0) Winter Flounder Pseudopleuronectes americanus were evaluated. Fish were collected in summer 2012 from 12 nursery areas from New Jersey to New Hampshire, spanning >500 km. Nursery specific microchemical signatures were developed using element : Ca ratios, which were determined with solution-based inductively coupled plasma-mass spectrometry on the whole otolith. Age-0 flounder microchemical signatures showed significant nursery-specific differences and varied on a small spatial scale (about 12 km) based on elemental (Li, Na, Mg, Mn, Sr, Cd, and Ba) ratios. Via quadratic discriminant function analysis, fish were classified back to natal nursery areas with 73% average cross-validation classification accuracies. Based on this preliminary study, otolith microchemistry has the potential to be an effective tool to assess the connectivity between the inshore nursery areas and the offshore adult populations of Winter Flounder; however, further baseline studies are needed. In particular, between-year and within-year variation in the otolith elemental concentrations must be quantified. These elemental analyses need to be linked to specific management needs to be useful to fisheries managers; for Winter Flounder, the ability to rank estuaries by the yield of recruits may help solve estuary-specific anthropogenic challenges.Received July 11, 2014; accepted October 16, 2014
    Transactions of the American Fisheries Society 01/2015; 144(1).
  • Transactions of the American Fisheries Society 01/2015; 144(1):163-172.
  • Transactions of the American Fisheries Society 01/2015; 144(1):140-149.
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    ABSTRACT: The invasion of North American wetlands by the Eurasian subspecies of common reed Phragmites australis australis is well documented, but very few studies have been conducted on its effects on freshwater fish communities. Northern Pike Esox lucius is one of several fish species using wetlands for reproduction and early development that could be affected by the spread of common reed. The effects of vegetation type (common reed stands, other reference plant assemblages) were evaluated on four aspects (egg deposition, abundance, growth, and feeding) of the early life history of Northern Pike in two St. Lawrence River wetlands in Quebec. During high water levels in 2009, the relative abundance of Northern Pike eggs was three times higher in the reference plant assemblages than in the common reed stands at the two study sites. In 2010, when water levels were extremely low and few other plant assemblages were accessible by fish, the relative abundance of eggs was two times higher in the common reed stands than in other plant assemblages within the only site available for sampling. In 2009, the relative abundance, length, and weight of age-0 Northern Pike did not differ significantly between common reed stands and reference assemblages. Growth rate, condition, prey type, and relationship between digestive tract dry weight and total fish dry weight suggested slightly more favorable conditions in common reed stands in some cases or in reference assemblages in other cases (no consistent pattern between the vegetation types). Although common reed is still in the early invasion process in St. Lawrence River freshwater marshes, it does not seem to have any negative effects on Northern Pike early life history. However, little is known about the magnitude of common reed biomass accumulation, making it impossible to predict whether these stands, which are part of an ongoing invasion, will provide long-term quality habitat.Received March 3, 2014; accepted October 10, 2014
    Transactions of the American Fisheries Society 01/2015; 144(1).
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    ABSTRACT: Technological advances have made acoustic tracking of fish an effective means to collect unprecedented migration data. However, one must ensure that fish survive the surgical implantation and retain transmitters, and that their health and behavior are not adversely affected. We performed a laboratory study to examine the most effective surgery technique and suture material for implanting acoustic transmitters into Spotted Seatrout Cynoscion nebulosus. Six treatment groups were used to investigate two ventral incision locations (midline and off-midline) and three suture materials (braid, monofilament, and staples). Overall survival was high for all fish undergoing surgery (75% for surgical controls, and 74% for surgically implanted fish), suggesting that acoustic transmitter implantation can be very successful for Spotted Seatrout. However, female fish had significantly higher survival (85.7%) than male fish (41.2%). Surgery time ranged from 73 to 270 s, and our results suggest that for every second that the surgery time was reduced the odds of increasing survival are 1.5%. Moreover, the surgery process versus tagging material or incision location is the primary cause of mortality. Overall, there was no one treatment that showed distinct differences in survival and transmitter retention; however, for future telemetry studies using Vemco V13 transmitters with Spotted Seatrout, we recommend researchers (1) target fish greater than 425 mm TL, (2) minimize surgery time (preferably 160 s or less), and (3) use an off-midline incision placement closed with two sutures using braid suture material. These techniques will help ensure successful field acoustic tracking studies by increasing the likelihood of Spotted Seatrout survival and transmitter retention. Finally, these methods have applicability to other fishes, particularly Sciaenids, with high potential for success.Received January 29, 2014; accepted September 9, 2014
    Transactions of the American Fisheries Society 01/2015; 144(1).
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    ABSTRACT: To restore habitat for wild trout, Kleinschmidt Creek, a low-gradient, groundwater-dominated stream in the Blackfoot Basin, Montana, was reconstructed using natural channel design principles. Reconstruction increased stream sinuosity from a ratio of 1.1 to 1.6, decreased mean channel width from 14.5 to 2.8 m, and increased sediment transport capacity to reduce accumulations of fine instream sediment. To further improve trout habitat, coarse woody debris (CWD) was variably placed within the new channel and livestock were excluded to promote the vegetative recovery of the riparian area. To evaluate the response of wild trout (92% Brown Trout Salmo trutta) to channel restoration, the abundance (number of trout per linear meter) and biomass (g/linear m) of age 1+ trout were monitored for 15 years (1998–2012) in a reach with low density CWD (1.3 stems/100 m) and compared with regional (reference) trends. Posttreatment (2002–2012) trout numbers in the low-density CWD reach were also compared with those in a reach with high-density CWD (18.2 stems/100 m). Long-term trends for the reference reaches showed a significant negative trend in trout abundance and no significant trend for biomass. Long-term trends for the low-density CWD reach showed a significant positive trend in abundance, as well as a significant trend in biomass. Trout abundance and biomass increased over the posttreatment period in the low-density CWD reach. However, in the high density CWD reach, while posttreatment abundance increased significantly, there was no significant trend in biomass. These results demonstrated that channel restoration increased wild trout populations in a deep, narrow, vegetated stream and that instream wood provided primarily short-term benefits during the early phase of habitat recovery.Received November 26, 2013; accepted October 18, 2014
    Transactions of the American Fisheries Society 01/2015; 144(1).
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    ABSTRACT: The Atlantic Menhaden Brevoortia tyrannus is a clupeid that plays a critical role in the marine food web and supports one of the largest fisheries on the U.S. East Coast. Along with a decrease in overall numbers and spawning stock biomass, recruitment levels have remained low since the 1990s. Atlantic Menhaden use numerous estuaries along the Atlantic coast for juvenile development before recruiting to the adult population, but the contribution of each of these nursery grounds is currently unknown. Chesapeake Bay is thought to contribute 70% of the total recruits, although this estimate is over 20 years old and predates current low recruitment levels. We investigated the potential of trace element (Li, Mg, Mn, Rb, Sr, Y, Ba, and Pb) and stable isotope ratio (δ13C and δ18O) signatures in otoliths to distinguish among Atlantic Menhaden collected from various nursery grounds along the U.S. Atlantic coast (Connecticut to South Carolina) during 2009–2011. Juveniles were classified to four regional nursery areas with nearly 90% accuracy. Due to significant interannual variation in the chemical signatures, our attempts to classify juveniles from adjacent year-classes or combined year-classes resulted in lower accuracy. However, this study provides a 3-year library of geochemical fingerprints for assigning adults to their regions of origin. This research builds the foundation for a comprehensive estimate of Atlantic Menhaden recruitment rates from each of the major nursery areas along the U.S. Atlantic coast for 2009–2011.Received May 28, 2014; accepted September 16, 2014
    Transactions of the American Fisheries Society 01/2015; 144(1).
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    ABSTRACT: The Bridle Shiner Notropis bifrenatus is a small, rare minnow species native to northeastern streams and lakes. It is declining over most of its range and currently is listed as a species of concern in Connecticut. Surveys conducted with seine nets in the 1960s found Bridle Shiners at 56 locations statewide. In contrast, surveys conducted in the 1990s using electrofishing detected Bridle Shiners at 8 locations. Different sampling techniques made it difficult to assess what portion of the observed decline might be a sampling artifact, confounding efforts to assess the actual conservation status. We sampled 18 habitat patches in three Connecticut watersheds in 2012 to determine if seining for Bridle Shiners yielded a higher detection probability than backpack electrofishing. A multimethod occupancy estimation modeling approach, using the program PRESENCE, quantified the probability of correctly detecting Bridle Shiners by gear and as detection covaried with habitat features. Backpack electrofishing detection probability was lower and approximately half that of seining. The abundance of Bridle Shiners in the sample patch was the most supported covariate to detection and particularly aided detection for electrofishing. High mean water velocity improved the detection probability of backpack electrofishing and reduced that of seining. It is possible that the 1990s sampling underestimated the number of populations of Bridle Shiners, and a repeat survey of all historic locations using a seine is recommended.Received April 3, 2014; accepted September 15, 2014
    Transactions of the American Fisheries Society 01/2015; 144(1).
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    ABSTRACT: The Brook Trout Salvelinus fontinalis is an important species of conservation concern in the eastern USA. We developed a model to predict Brook Trout population status within individual stream reaches throughout the species’ native range in the eastern USA. We utilized hierarchical logistic regression with Bayesian estimation to predict Brook Trout occurrence probability, and we allowed slopes and intercepts to vary among ecological drainage units (EDUs). Model performance was similar for 7,327 training samples and 1,832 validation samples based on the area under the receiver operating curve (∼0.78) and Cohen's kappa statistic (0.44). Predicted water temperature had a strong negative effect on Brook Trout occurrence probability at the stream reach scale and was also negatively associated with the EDU average probability of Brook Trout occurrence (i.e., EDU-specific intercepts). The effect of soil permeability was positive but decreased as EDU mean soil permeability increased. Brook Trout were less likely to occur in stream reaches surrounded by agricultural or developed land cover, and an interaction suggested that agricultural land cover also resulted in an increased sensitivity to water temperature. Our model provides a further understanding of how Brook Trout are shaped by habitat characteristics in the region and yields maps of stream-reach-scale predictions, which together can be used to support ongoing conservation and management efforts. These decision support tools can be used to identify the extent of potentially suitable habitat, estimate historic habitat losses, and prioritize conservation efforts by selecting suitable stream reaches for a given action. Future work could extend the model to account for additional landscape or habitat characteristics, include biotic interactions, or estimate potential Brook Trout responses to climate and land use changes.Received May 9, 2014; accepted August 26, 2014
    Transactions of the American Fisheries Society 01/2015; 144(1).
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    ABSTRACT: Recent fish passage work in the Apalachicola–Chattahoochee–Flint (ACF) river system has coincided with an increase in the abundance and population estimates of adult Alabama Shad Alosa alabamae. Juvenile Alabama Shad are now common in the Flint River and Lake Seminole above Jim Woodruff Lock and Dam where they have historically been absent. Fish passage work has successfully restored spawning adults to these habitats; however, whether these juveniles are contributing to the observed population increases is unknown. Our objective was to determine the natal origins of adult Alabama Shad returning to spawn in the ACF river system, specifically whether fish passage efforts at the dam were contributing recruits to the adult population. Juvenile otolith chemistry profiles were significantly different between nursery locations above and below the dam but were complicated by temporal variation. However, including short term temporal variation in a discriminant function analysis (DFA) resulted in 88% correct classification, indicating that for the ACF river basin, short-term temporal variability in otolith chemistry does not pose a significant problem for predicting natal origins from cohorts that were not sampled. This finding relied most heavily on strontium, which did not exhibit temporal variation. Our data show that juvenile Alabama Shad produced upstream and downstream of the dam in the ACF can be reliably discriminated with an otolith chemistry approach. This discriminant function was applied to 140 adult Alabama Shad collected during 2010 and 2011 from below the dam and indicated that 86% of adults returning to spawn in the ACF system recruited from the Flint River above the dam. Neither collection year, sex, nor age affected the shad origins. These data indicate that juvenile Alabama Shad are able to emigrate successfully downstream through at least one lock and dam and contribute to the adult stock.Received April 12, 2014; accepted August 5, 2014
    Transactions of the American Fisheries Society 01/2015; 144(1).
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    ABSTRACT: The collapse of the commercial fishery and the major decline in catches in the recreational fishery for Chinook Salmon Oncorhynchus tshawytscha in the Strait of Georgia since the mid-1990s represents a major economic loss to British Columbia. Early marine residence is critical for survival of Chinook Salmon, but measuring the amount of mortality has been difficult. Acoustic tags can be used to measure marine mortality and study migratory behavior. We surgically implanted 278 juvenile Chinook Salmon with acoustic tags to monitor when and how many tagged fish moved out of the Strait of Georgia. Only eight tagged fish were detected leaving the Strait of Georgia, indicating that there could have been substantial mortality of the tagged juvenile Chinook Salmon within the strait. Tagging mortality was minimal, and the detection of tags was shown not to be a major source of error in this study. A major change in population structure between the spring and fall tagging periods meant that it was unlikely that most of the fish tagged in June and July remained within the Strait of Georgia. The decline in abundance of juvenile Chinook Salmon in November 2008 also indicates that the lack of detections of all tagged fish is unlikely a consequence of fish remaining in the Strait of Georgia. This information and the low catches in winter surveys indicated that most juvenile Chinook salmon were no longer in the strait in the late fall and winter. If the tagged fish were representative of the untagged fish, the current brood-year strength probably is largely determined within the Strait of Georgia.Received January 31, 2014; accepted July 31, 2014
    Transactions of the American Fisheries Society 01/2015; 144(1).
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    ABSTRACT: Restoration of oyster reefs is increasing worldwide due to oyster populations reaching historic lows and recognition of the many ecosystem services provided by oyster reefs, such as essential fish habitat. This study took advantage of an existing network of subtidal oyster reefs and a large-scale oyster reef restoration effort in Pamlico Sound, North Carolina, to (1) compare estuarine fish assemblages on oyster reefs with those on unstructured bottom, (2) identify the short-term change in fish abundance and richness in response to reef creation, and (3) identify spatiotemporal trends in fish abundance and richness. We quantified transient and reef fish using gill nets and fish traps, respectively. Oyster reefs harbored more unique species than unstructured bottom, thereby enhancing the overall diversity of estuarine fish assemblages. Fish abundance on recently created experimental reefs (6–8 months postconstruction) was similar to that on control reefs that were 4–6 years old, suggesting rapid colonization of new reefs. Fish diversity at 1 of 2 sites actually decreased on control reefs after reef construction, suggesting that rapid colonization of new reefs was due, in part, to the movement of fish from old to new reefs. Information on the distribution, abundance, and diversity of estuarine fish in relation to restored oyster reefs will improve our understanding of oyster reefs as essential fish habitat.Received June 12, 2013; accepted September 14, 2013
    Transactions of the American Fisheries Society 12/2014; 143(1).
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    ABSTRACT: Models based on simple air temperature–water temperature relationships have been useful in highlighting potential threats to coldwater-dependent species such as Brook Trout Salvelinus fontinalis by predicting major losses of habitat and substantial reductions in geographic distribution. However, spatial variability in the relationship between changes in air temperature to changes in water temperature complicates predictions. We directly measured paired summer air and water temperatures over 2 years in a stratified representative sample of watersheds (2) supporting wild Brook Trout throughout Virginia near the southern edge of the species distribution. We used the temperature data to rank streams in terms of two important components of habitat vulnerability: sensitivity (predicted change in water temperature per unit increase in air temperature) and exposure (predicted frequency, magnitude, and duration of threshold water temperatures). Across all sites, sensitivity was substantially lower (median sensitivity = 0.35°C) than the 0.80°C assumed in some previous models. Median sensitivity across all sites did not differ between the 2 years of the study. In contrast, median exposure was considerably greater in 2010 (a particularly warm summer) than in 2009, but exposure ranks of habitat patches were highly consistent. Variation in sensitivity and exposure among habitat patches was influenced by landscape metrics (percent forested riparian corridor, patch area, and elevation), but considerable unexplained variation in sensitivity and exposure among sites was likely due to local-scale differences in the extent of groundwater influence. Overall, our direct measurement approach identified significantly more Brook Trout habitat patches with low sensitivity and low exposure that may persist under warming air temperatures than did previous large-scale models. Our sensitivity and exposure classification should provide a useful general framework for managers in making investment decisions for protecting and restoring Brook Trout habitat.Received September 2, 2011; accepted August 9, 2013
    Transactions of the American Fisheries Society 12/2014; 143(1).
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    ABSTRACT: The Pallid Sturgeon Scaphirhynchus albus is an endangered riverine sturgeon with historical distribution restricted to the Yellowstone, Missouri, Mississippi, and Atchafalaya rivers. Although not abundant, Pallid Sturgeon in the lower Mississippi River appear to be naturally recruiting, and information about habitat use is important to conserve this species. Thirty-four adult Pallid Sturgeon (612–1,013-mm FL) were tagged with acoustic transmitters and relocated a total of 272 times in a 40-km reach of the lower Mississippi River from April 2009 through December 2012. Pallid Sturgeon strongly selected island tip and natural bank habitats, and, to a lesser degree, revetted bank habitat. Although frequently used, Pallid Sturgeon exhibited negative selection for the expansive main channel habitat. Secondary channel habitat was seasonally available and excluded from habitat selection analysis, but this habitat was frequently used in the spring when available. Fifty percent of Pallid Sturgeon detections were in relatively narrow ranges of depths (6.2–13.6 m) and surface current velocities (0.64–1.05 m/s). Use of different habitats was related to river stage and water temperature, suggesting use of some habitats was seasonal. Results suggest that maintaining natural bank habitat and secondary channel–island complexes will benefit conservation of this endangered species in the lower Mississippi River.Received April 12, 2012; accepted July 29, 2013
    Transactions of the American Fisheries Society 12/2014; 143(1).
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    ABSTRACT: In the Blackfoot basin of western Montana, the recovery of migratory Westslope Cutthroat Trout Oncorhynchus clarkii lewisi requires landscape conservation as well as restoration of spawning tributaries. Westslope Cutthroat Trout are now increasing in the Blackfoot River and several streams, including Nevada Spring Creek, where natural channel, flow, and temperature regimes have reestablished aquatic habitat and migration corridors. To examine whether restoration has improved corridors for migration, we tracked the movements of 14 adult Westslope Cutthroat Trout from wintering areas in lower Nevada Creek (downstream of Nevada Spring Creek) to spawning and summering areas. Ten fish moved through Nevada Spring Creek upstream a median distance of 7.7 km (range, 7.6–16.9) to spawning sites at the headwaters of Wasson Creek through stream reaches where channels were reconstructed, instream flows enhanced, and grazing practices improved. Eight of the 10 fish that entered Wasson Creek spawned in a concentrated area upstream of two experimental diversion–fish screen structures located in the main channel of Wasson Creek. Prespawning movements of the remaining four radio-tagged fish were much farther than those of Wasson Creek spawners (median, 51.8 km; range, 44.9–63.1). These four fish moved downstream through Nevada Creek into the Blackfoot River and then ascended upper Blackfoot River before entering two separate spawning tributaries. This telemetry study indicates that restoration can improve migration corridors which, in turn, promote the recovery of migratory Westslope Cutthroat Trout, and that spring-influenced tributaries like Nevada Spring Creek provide important overwinter habitat for Westslope Cutthroat Trout that spawn and summer elsewhere in the basin.Received June 7, 2013; accepted August 27, 2013
    Transactions of the American Fisheries Society 12/2014; 143(1).