Contrasting river migrations of Common Snook between two Florida rivers using acoustic telemetry

Boucek, Ross E.; Trotter, Alexis A.; Blewett, David A.; Ritch, Jared L.; Santos, Rolando O.; Stevens, Philip W.; Massie, Jordan A.; Rehage, Jennifer S.

doi:10.1016/j.fishres.2018.12.017

Cited by 13 publications

(11 citation statements)

References 31 publications

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“…Our results indicate a protracted spawning period for Snook, with migrations occurring in all months of the spawning season, consistent with patterns previously reported for the species [ 34 , 43 , 58 , 59 ]. Yet, most of the spawning migrations were observed in earlier months (> 50% migrated April-June).…”

Section: Discussionsupporting

confidence: 91%

“…Our results suggest a high frequency of skipped spawning in tagged Snook in the Shark River. Skipped spawning has been well documented in Florida Snook populations, although the proportion varies among systems and years [ 34 , 57 , 58 ]. Our annual frequencies of between 11 and 53% of Snook migrating are in line with the annual migration/skipped spawning frequencies previously reported (24–40%) but suggest a higher degree of interannual variation in the Shark River [ 34 , 57 , 58 ].…”

Section: Discussionmentioning

confidence: 99%

“…Skipped spawning has been well documented in Florida Snook populations, although the proportion varies among systems and years [ 34 , 57 , 58 ]. Our annual frequencies of between 11 and 53% of Snook migrating are in line with the annual migration/skipped spawning frequencies previously reported (24–40%) but suggest a higher degree of interannual variation in the Shark River [ 34 , 57 , 58 ]. This may be partly explained by the longer timespan of our data which encapsulates a broader range of hydrologic variation relative to previous studies.…”

Section: Discussionmentioning

confidence: 99%

“…A recurring observation in studies of spawning migrations is a high degree of interannual variability in migratory behaviors [ 24 , 32 , 34 ]. Relatively few studies have focused on how conditions experienced before the reproductive season (migratory primers) may influence the extent of partial migration for species that forgo spawning in a given year, often referred to as skipped spawning in fishes [ 9 , 14 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

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Primed and cued: long-term acoustic telemetry links interannual and seasonal variations in freshwater flows to the spawning migrations of Common Snook in the Florida Everglades

et al. 2022

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Background Spawning migrations are a widespread phenomenon among fishes, often occurring in response to environmental conditions prompting movement into reproductive habitats (migratory cues). However, for many species, individual fish may choose not to migrate, and research suggests that conditions preceding the spawning season (migratory primers) may influence this decision. Few studies have provided empirical descriptions of these prior conditions, partly due to a lack of long-term data allowing for robust multi-year comparisons. To investigate how primers and cues interact to shape the spawning migrations of coastal fishes, we use acoustic telemetry data from Common Snook (Centropomus undecimalis) in Everglades National Park, Florida, USA. A contingent of Snook migrate between rivers and coastal spawning sites, varying annually in both the proportion of the population that migrates and the timing of migration within the spawning season. However, the specific environmental factors that serve as migratory primers and cues remain unknown. Methods We used eight years of acoustic telemetry data (2012–2019) from 173 tagged Common Snook to investigate how primers and cues influence migratory patterns at different temporal scales. We hypothesize that (1) interannual differences in hydrologic conditions preceding the spawning season contribute to the number of individuals migrating each year, and (2) specific environmental cues trigger the timing of migrations during the spawning season. We used GLMMs to model both the annual and seasonal migratory response in relation to flow characteristics (water level, rate of change in water level), other hydrologic/abiotic conditions (temperature, salinity), fish size, and phenological cues independent of riverine conditions (photoperiod, lunar cycle). Results We found that the extent of minimum marsh water level prior to migration and fish size influence the proportion of Snook migrating each year, and that high river water level and daily rates of change serve as primary cues triggering migration timing. Conclusion Our findings illustrate how spawning migrations are shaped by environmental factors acting at different temporal scales and emphasize the importance of long-term movement data in understanding these patterns. Research providing mechanistic descriptions of conditions that promote migration and reproduction can help inform management decisions aimed at conserving ecologically and economically important species.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Primed and cued: long-term acoustic telemetry links interannual and seasonal variations in freshwater flows to the spawning migrations of Common Snook in the Florida Everglades

et al. 2022

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“…A primeira vista, essas informações indicam que essa espécie realiza migração do tipo verdadeira porque relaciona áreas e movimentos bem definidos, como por exemplo a volta a habitats previamente ocupados, uma vez, que possuem fidelidade aos locais de nascimento (Andrade, Santos & Taylor, 2013;Lowerre-Barbieri et al, 2014;Young et al, 2016). No entanto, pesquisas recentes sugerem que a dinâmica espacial dos indivíduos adultos é mais complexas do que se acreditava, com adultos permanecendo no rio na ocasião da desova e quando realizam a migração, não necessariamente, retornam para os locais de origem, fato observado na Flórida (EUA) (Trotter et al, 2012;Boucek et al, 2019). Para aumentar essa complexidade, outros autores sugerem que essa espécie seja estuarina residente, ou seja, capaz de completar seu ciclo de vida nesse ambiente (Giglio & Freitas, 2013).…”

Section: Figuraunclassified

Contribuição dos atores da pesca para a bioecologia do Camurim Centropomus undecimalis (CENTROPOMIDAE – PERCIFORMES) capturado no litoral Amazônico brasileiro

Pereira

Cañete

Palheta

et al. 2020

RSD

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O objetivo deste trabalho foi conhecer e descrever a bioecologia do Centropomus undecimalis (Bloch, 1792), quanto a sua nomenclatura local, hábitat, alimentação, reprodução e migração, a partir do conhecimento dos atores da pesca, bem como, traçar o perfil socioeconômico desses trabalhadores. Os dados foram obtidos por meio de entrevistas semiestruturadas junto aos pescadores, mestres e donos de embarcações, entre março e maio de 2019 no município de Bragança, por meio da técnica snowball. Os dados foram tabulados e analisados em planilhas eletrônicas dos Software Microsoft Office Excel, Past e IRAMUTEQ. O perfil socioeconômico dos atores da pesca foi similar em relação a idade, escolaridade, tempo na pesca e renda, exceto o último, que variou significativamente em função da ocupação/profissão. Essa espécie é conhecida localmente como camurim, robalo e camurim-preto. Sendo encontrado ao longo do litoral amazônico brasileiro, distribuído em 20 etno-habitats. Destes, 49,1% encontram-se no ambiente costeiro/marinho, 47,1% no estuarino e 3,8% no dulcícola. Alimentam-se, preferencialmente de peixes, seguido de crustáceos e insetos. Essa espécie reproduz ao longo do ano, porém, com maior frequência entre os meses de junho e dezembro (período de transição chuvoso-seco e período seco). A migração ocorre em função da sazonalidade local, fase de vida e habitat, influenciando na alimentação, reprodução e crescimento. Os resultados apresentados, a partir de uma perspectiva integrada de conhecimentos, pode ser peça chave no ponto de partida para o manejo e conservação dessa espécie no litoral amazônico brasileiro.

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Otolith microchemistry highlights the importance of extensive connectivity for conservation of an iconic migratory fish in a large tropical river basin

Pease,

Jacobs,

Mendoza‐Carranza

et al. 2023

Aquatic Conservation

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Migratory fishes exert important influences on tropical river food webs, but these species are often most vulnerable to environmental change. Movement patterns of fishes in tropical rivers are also generally poorly understood, hindering conservation efforts. Common snook, Centropomus undecimalis, depend on connected coastal habitats for reproduction and growth and can migrate extensively up rivers when not hindered by barriers to movement. In southern Mexico, they are frequently captured 300 river km or more upstream from the delta of the Usumacinta River. The Usumacinta is a large river system with no mainstem dams, providing an expansive network of connected river, stream and wetland habitats which form a much larger migratory domain that exists in many other systems where common snook have been studied. To assess whether fish captured in different zones were associated with different natal habitats or distinct migratory patterns, variation in common snook otolith chemical signatures was examined in the Usumacinta River from the Gulf of Mexico coast to as far as 600 river km upriver. Otolith microchemistry was useful for characterizing migratory histories of individuals, but there was no clear evidence that fish captured in different river zones used different types of natal habitats. Based on lifetime Sr:Ca in otoliths, a diverse array of movement patterns was evident in the Usumacinta system, with 97% of common snook showing evidence of freshwater habitat use. Prevalent use of riverine habitats by common snook far from the coast reinforces the need to preserve connectivity in the Usumacinta River and other undammed systems supporting migratory species. The natural flow regime and lack of barriers allow for longitudinal and lateral connectivity in this system, providing pathways for migratory species to move extensively and have access to an array of habitats, including productive floodplain lagoons.

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Contrasting river migrations of Common Snook between two Florida rivers using acoustic telemetry

Cited by 13 publications

References 31 publications

Primed and cued: long-term acoustic telemetry links interannual and seasonal variations in freshwater flows to the spawning migrations of Common Snook in the Florida Everglades

Primed and cued: long-term acoustic telemetry links interannual and seasonal variations in freshwater flows to the spawning migrations of Common Snook in the Florida Everglades

Contribuição dos atores da pesca para a bioecologia do Camurim Centropomus undecimalis (CENTROPOMIDAE – PERCIFORMES) capturado no litoral Amazônico brasileiro

Otolith microchemistry highlights the importance of extensive connectivity for conservation of an iconic migratory fish in a large tropical river basin

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