Modifying mosquito impoundment management to enhance nursery habitat value for juvenile common Snook (Centropomus undecimalis) and Atlantic tarpon (Megalops atlanticus)

Cianciotto, Anthony C.; Shenker, Jonathan M.; Adams, Aaron J.; Rennert, Jacob J.; Heuberger, David

doi:10.1007/s10641-018-0838-8

Cited by 14 publications

(5 citation statements)

References 27 publications

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“…Indeed, over the last decades, estuaries have faced changes to their environmental features (e.g., freshwater flows, mangrove cover levels, water temperatures, M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT sedimentation rates and salinity gradients) due to anthropogenic activities and climate change (Yang, 2015;Pelage et al, 2019). These modifications directly affect the food web dynamics and distribution of snooks species by regulating their accessibility to habitats and the availability of prey (Adams et al, 2009;Araújo et al, 2018;Cianciotto et al, 2019). For instance, human induced changes in the freshwater flow regimes of estuarine creeks in Florida have been shown to decrease the diversity of prey available to snooks (Adams et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…For instance, morphological features of estuarine areas (e.g., system size and structural heterogeneity) have been associated with resource availability (Abrantes et al, 2013;Bouillon et al, 2004), fish species diversity and food web composition (França et al, 2012;Vasconcelos et al, 2015), food chain length (Doi et al, 2009) as well as with interspecific processes between functionally related predators (Young, 2001;Mariani et al, 2011). Habitat changes caused by recurrent anthropogenic activities can also influence the environmental boundaries of estuarine systems and their role as migratory corridors for amphidromous species such as snooks (Cianciotto et al, 2019). These changes may affect numerous ecological processes such as the availability of prey from adjacent habitats, species distributions and interspecific processes observed among estuarine predators (Adams et al 2009;Boucek and Rehage, 2013;Cianciotto et al, 2019).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Habitat changes caused by recurrent anthropogenic activities can also influence the environmental boundaries of estuarine systems and their role as migratory corridors for amphidromous species such as snooks (Cianciotto et al, 2019). These changes may affect numerous ecological processes such as the availability of prey from adjacent habitats, species distributions and interspecific processes observed among estuarine predators (Adams et al 2009;Boucek and Rehage, 2013;Cianciotto et al, 2019). Understanding the coexistence of sympatric predators will help improve ongoing conservation measures and initiate an investigation of potential effects of climate change on the displacement and abundance of estuarine fish (e.g., Araújo et al, 2018).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

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Trophic resource partitioning of two snook fish species (Centropomidae) in tropical estuaries in Brazil as evidenced by stable isotope analysis

Gonzalez

Ménard

Loc’h

et al. 2019

Estuarine, Coastal and Shelf Science

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We investigated the trophic niches and the resource partitioning of two snook species, the common (Centropomus undecimalis) and the fat snook (C. parallelus), in four tropical estuaries of the northeastern Brazil, using stable isotope analyses of carbon (δ13C) and nitrogen (δ15N). Fish specimens, mainly juveniles, basal resources and a primary consumer were collected in 2015 during dry and rainy seasons in all estuaries, which exhibited differences in system size, geomorphologic shapes, levels of sea access and anthropic pressures. Potential effect of factors like fish body length, estuary and seasonality on isotope ratios were investigated. Positive relationships between the size of fish and δ15N values were found, regardless the species. Our results indicated that snooks can be characterized as secondary consumers and have close trophic niches in most estuaries. Trophic overlaps were more pronounced within the largest estuaries (Catuama and Santa Cruz), whereas smaller systems that have restricted connections to the sea presented low isotopic niche overlap between both species (Suape and Sirinhaém). Moreover, a higher variability of δ13C and δ15N values in snooks was found in larger estuaries undergoing stronger influences from coastal adjacent waters. Although we were not able to detect clear seasonal effects, greater isotopic overlaps were found during the rainy season. Despite the lack of intrinsic differences in life history traits, both species, dominated by juveniles, shared similar trophic niches in these environments. Highlights ► δ 13 C and δ 15 N of two Centropomidae were investigated in four estuaries in Brazil. ► Juveniles of Centropomus undecimalis and C. parallelus have close isotopic niches. ► Trophic overlaps were more pronounced in large estuaries. ► Resource partitioning process might reflects the resource availability in estuaries.

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Section: Discussionmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

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Trophic resource partitioning of two snook fish species (Centropomidae) in tropical estuaries in Brazil as evidenced by stable isotope analysis

Gonzalez

Ménard

Loc’h

et al. 2019

Estuarine, Coastal and Shelf Science

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“…In the Indian River Lagoon on the east coast of Florida, over 16,000 ha of coastal marshes were impounded in the 1950s and 1960s for the control of mosquito breeding (Brockmeyer et al 1996 ), and 85% of the mangrove habitats of the ecosystem are located within these impoundments (FWC 2021 ). Subsequent installation of culverts in many of the mangrove-filled impoundments, and seasonal control of hydrographic connectivity allowed some of the fish nursery functionality to be restored (Gilmore et al 1982 ; Brockmeyer et al 1996 ; Poulakis et al 2002 ; Cianciotto et al 2019 ). Since ecologically intact systems are more resilient to disturbances and the interaction between natural and anthropogenic disturbances are especially problematic for maintaining ecological integrity (White and Jentsch 2001 ), the compromised state of the coastal habitat mosaic will mean an even greater challenge to managing fish species that support flats fisheries.…”

Section: Implications For Management and Conservationmentioning

confidence: 99%

Cascading effects of climate change on recreational marine flats fishes and fisheries

et al. 2022

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Tropical and subtropical coastal flats are shallow regions of the marine environment at the intersection of land and sea. These regions provide myriad ecological goods and services, including recreational fisheries focused on flats-inhabiting fishes such as bonefish, tarpon, and permit. The cascading effects of climate change have the potential to negatively impact coastal flats around the globe and to reduce their ecological and economic value. In this paper, we consider how the combined effects of climate change, including extremes in temperature and precipitation regimes, sea level rise, and changes in nutrient dynamics, are causing rapid and potentially permanent changes to the structure and function of tropical and subtropical flats ecosystems. We then apply the available science on recreationally targeted fishes to reveal how these changes can cascade through layers of biological organization—from individuals, to populations, to communities—and ultimately impact the coastal systems that depend on them. We identify critical gaps in knowledge related to the extent and severity of these effects, and how such gaps influence the effectiveness of conservation, management, policy, and grassroots stewardship efforts.

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“…Juvenile tarpon were collected during August–December, which coincides temporally with studies at similar latitudes (Mace et al ., 2018, 2020; Stein et al ., 2016) but is abbreviated compared to studies conducted in more tropical zones (Cianciotto et al ., 2019; Wilson et al ., 2019; Zerbi et al ., 1999, 2001). The median fork length of juveniles in the present study increased during summer and fall into winter, and the allometric length–mass relationship was similar to other studies that reported on a similar size range (Rickards, 1968), indicating these individuals used coastal habitats for post‐recruitment growth.…”

Section: Discussionmentioning

confidence: 99%

Age and growth of early‐life‐stage Atlantic tarpon (Megalops atlanticus) from the northcentral Gulf of Mexico

Graham

Franks

Anderson

et al. 2021

Journal of Fish Biology

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Age and growth of early‐life‐stage Atlantic tarpon Megalops atlanticus collected from Mississippi coastal waters in the northcentral Gulf of Mexico (GOM) are described using otolith microstructure analysis. Tarpon leptocephali (n = 95, 16.0—27.8 mm standard length, LS) collected from June throughOctober 2013—2018, ranged in age from 22 to 43 days (mean = 30.9 ± 0.5 days). Leptocephalus somatic growth rates ranged 0.46—1.24 mm day−1 (mean = 0.76 ± 0.02 mm day−1), and leptocephalus otolith growth rates ranged 1.78—3.97 μm day−1 (mean = 2.58 ± 0.04 μm day−1). Growth rates were inversely correlated to leptocephalus age, indicating the shrinkage phase associated with leptocephalus metamorphosis. Juvenile tarpon (n = 358, 50—359 mm fork length, LF) were collected from August through December 2007—2018. Juveniles exhibited a positive allometric relationship (adjusted R2 = 0.99, P < 0.001) between length and mass. The age of 100 juveniles (71—277 mm LF) ranged from 76 to 174 days. Juvenile growth rate was estimated as 1.56 ± 0.11 mm day−1. Significant (P < 0.001) linear relationships were found between juvenile age and otolith metrics, including otolith mass (R2 = 0.81) and radius (R2 = 0.68). Evaluation of the backcalculated hatch dates suggests that specimens in the collection hatched from late May through mid‐September with slight peaks during July and August. A Rao's Spacing Test of Uniformity indicates the presence of significant lunar periodicity in leptocephalus hatch dates (n = 95, U = 250.1, P < 0.05), with 50% of the leptocephali hatched within 5 days (before or after) of the full moon. This study fills critical gaps in the scientific knowledge of tarpon and provides estimates of early‐life‐history metrics for an iconic game fish at the northernmost extent of its GOM range.

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Modifying mosquito impoundment management to enhance nursery habitat value for juvenile common Snook (Centropomus undecimalis) and Atlantic tarpon (Megalops atlanticus)

Cited by 14 publications

References 27 publications

Trophic resource partitioning of two snook fish species (Centropomidae) in tropical estuaries in Brazil as evidenced by stable isotope analysis

Trophic resource partitioning of two snook fish species (Centropomidae) in tropical estuaries in Brazil as evidenced by stable isotope analysis

Cascading effects of climate change on recreational marine flats fishes and fisheries

Age and growth of early‐life‐stage Atlantic tarpon (Megalops atlanticus) from the northcentral Gulf of Mexico

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