1
|
Lord C, Haÿ V, Medjoubi K, Berland S, Keith P. Travelling in Microphis (Teleostei: Syngnathidae) Otoliths with Two-Dimensional X-ray Fluorescence Maps: Twists and Turns on the Road to Strontium Incorporation. BIOLOGY 2024; 13:446. [PMID: 38927326 PMCID: PMC11201212 DOI: 10.3390/biology13060446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/04/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024]
Abstract
Indo-Pacific tropical island streams are home to freshwater pipefish (Microphis spp., Syngnathidae). Otoliths were used to uncover life history traits in four species, including a New Caledonian endemic. All four species present the same methodological challenge: their otoliths are small, fragile and mute for growth marks using basic observation tools. Strontium (Sr) is calcium substituent in the mineral lattice, driven by salinity conditions, and thus useful to study diadromous migrations. Synchrotron-based scanning X-ray fluorescence 2D high-resolution mapping allowed us to tackle the global and hyperfine strontium (Sr) distribution. We developed analytical imaging processes to retrieve biological information from otoliths from the data generated via synchrotron analysis. We uncovered plasticity in the life cycle: all species were amphidromous, apart from some freshwater residents from New Caledonia. Understanding life cycle modalities is crucial to categorize species distribution limits and to implement adapted conservation measures, especially when endemic species are at stake. 2D fine-scale images outlined the heterogeneity of Sr distribution: in addition to the trivial Sr incorporation driven by environmental ionic conditions, there is an unusual mosaic arrangement of Sr distribution and we hypothesize that biological control, especially growth during the early life stages, may sometimes overrule stoichiometry. This shows that it is worth studying otolith formation and element integration at imbricated scales, and our methods and results provide a strong basis for future works and prospects in otolith science.
Collapse
Affiliation(s)
- Clara Lord
- UMR 8067, Biologie Des Organismes Et Écosystèmes Aquatiques (BOREA), Sorbonne Université, Muséum National d’Histoire Naturelle, Université de Caen Normandie, Université Des Antilles, CNRS, IRD, CP26, 43 Rue Cuvier, 75005 Paris, France; (V.H.); (S.B.); (P.K.)
| | - Vincent Haÿ
- UMR 8067, Biologie Des Organismes Et Écosystèmes Aquatiques (BOREA), Sorbonne Université, Muséum National d’Histoire Naturelle, Université de Caen Normandie, Université Des Antilles, CNRS, IRD, CP26, 43 Rue Cuvier, 75005 Paris, France; (V.H.); (S.B.); (P.K.)
| | | | - Sophie Berland
- UMR 8067, Biologie Des Organismes Et Écosystèmes Aquatiques (BOREA), Sorbonne Université, Muséum National d’Histoire Naturelle, Université de Caen Normandie, Université Des Antilles, CNRS, IRD, CP26, 43 Rue Cuvier, 75005 Paris, France; (V.H.); (S.B.); (P.K.)
| | - Philippe Keith
- UMR 8067, Biologie Des Organismes Et Écosystèmes Aquatiques (BOREA), Sorbonne Université, Muséum National d’Histoire Naturelle, Université de Caen Normandie, Université Des Antilles, CNRS, IRD, CP26, 43 Rue Cuvier, 75005 Paris, France; (V.H.); (S.B.); (P.K.)
| |
Collapse
|
2
|
Huang Z, Li H. Dams trigger exponential population declines of migratory fish. SCIENCE ADVANCES 2024; 10:eadi6580. [PMID: 38728390 PMCID: PMC11086605 DOI: 10.1126/sciadv.adi6580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 04/05/2024] [Indexed: 05/12/2024]
Abstract
The impact of dams on global migratory fish stocks is a major challenge and remains seriously underestimated. China has initiated a dozen fish rescue programs for the dams on the Yangtze River, focusing on five flagship species-Chinese sturgeon, Chinese paddlefish, Yangtze sturgeon, Chinese sucker, and Coreius guichenoti. Despite 40 years of effort, these five fishes are on the verge of extinction. Here, we propose an analytical tool that includes a framework of fish migration taxonomy and six life cycle models, the concepts of invalid stock and the dam impact coefficient, and a simplified population model. We then clarify the migration patterns and life cycles of these fishes and show that the Yangtze dams have severely disrupted the life cycle integrity of these species, causing seven types of invalid stocks and their exponential population declines. Last, we discuss six scientific misjudgments underpinning the fish rescue programs and recommend reforms to China's fish rescue strategy.
Collapse
Affiliation(s)
| | - Haiying Li
- China Institute of Water Resources and Hydropower Research, Beijing 100038, China
| |
Collapse
|
3
|
Corrochano-Fraile A, Carboni S, Green DM, Taggart JB, Adams TP, Aleynik D, Bekaert M. Estimating blue mussel (Mytilus edulis) connectivity and settlement capacity in mid-latitude fjord regions. Commun Biol 2024; 7:166. [PMID: 38337015 PMCID: PMC10858254 DOI: 10.1038/s42003-023-05498-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 10/24/2023] [Indexed: 02/12/2024] Open
Abstract
The mussel industry faces challenges such as low and inconsistent levels of larvae settlement and poor-quality spat, leading to variable production. However, mussel farming remains a vital sustainable and environmentally responsible method for producing protein, fostering ecological responsibility in the aquaculture sector. We investigate the population connectivity and larval dispersion of blue mussels (Mytilus edulis) in Scottish waters, as a case study, using a multidisciplinary approach that combined genetic data and particle modelling. This research allows us to develop a thorough understanding of blue mussel population dynamics in mid-latitude fjord regions, to infer gene-flow patterns, and to estimate population divergence. Our findings reveal a primary south-to-north particle transport direction and the presence of five genetic clusters. We discover a significant and continuous genetic material exchange among populations within the study area, with our biophysical model's outcomes aligning with our genetic observations. Additionally, our model reveals a robust connection between the southwest coast and the rest of the west coast. This study will guide the preservation of mussel farming regions, ensuring sustainable populations that contribute to marine ecosystem health and resilience.
Collapse
Affiliation(s)
- Ana Corrochano-Fraile
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, UK
| | - Stefano Carboni
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, UK
- Fondazione IMC, Torre Grande, Oristano, Italy
| | - Darren M Green
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, UK
| | - John B Taggart
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, UK
| | - Thomas P Adams
- Scottish Sea Farms Limited, Barcaldine Hatchery, Argyll, UK
| | | | - Michaël Bekaert
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, UK.
| |
Collapse
|
4
|
Ching C, Miller JA, Tsang Y, Fraiola K, Clilverd H, Honarvar S. Understanding amphidromy in Hawai'i: 'O'opu nākea (Awaous stamineus). JOURNAL OF FISH BIOLOGY 2023; 103:1163-1177. [PMID: 37492939 DOI: 10.1111/jfb.15511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/10/2023] [Accepted: 07/24/2023] [Indexed: 07/27/2023]
Abstract
Hawai'i is home to 'o'opu nākea (Awaous stamineus), a culturally significant, endemic, goby that exhibits an amphidromous life cycle characterized by a marine larval stage followed by post-larval recruitment to streams, where they live to become reproductive adults. However, it was recently suggested that their migration to the ocean might not be obligatory, as originally thought. Despite their importance in Hawaiian traditions and the ecology of Hawaiian freshwater ecosystems, we still lack a full understanding of their migratory patterns and life history due to the difficulties in determining the environmental migratory cues that set the timing and location of their migratory paths. This study examined environmental factors, such as mean annual rainfall, streamflow, and water chemistry, to determine if they play a role in whether A. stamineus spend their larval period in the ocean or their entire life cycle in freshwater streams. We sampled A. stamineus (n = 90) from three streams (Kahana, Kahalu'u, and Waimānalo) on the island of O'ahu, Hawai'i that represented the range of hydroclimatic gradient in wet-habitat conditions on the windward side of the island and characterized their migratory pattern using elemental analysis of sagittae, the largest pair of otoliths (calcareous ear structures). Based on otolith strontium:calcium and barium:calcium ratios, we determined if individuals spent their larval period in the ocean or the stream. We found that 100% of individuals displayed clear evidence of marine residence during their larval phase, regardless of the environmental factors the fish experienced. This study highlights the necessity of stream-ocean connectivity for the survival of A. stamineus and emphasizes the importance of stream-mouth conservation and management as it is a critical transition zone in stream-ocean-stream migratory pathways.
Collapse
Affiliation(s)
- Cody Ching
- University of Hawai'i at Mānoa, Honolulu, Hawai'i, USA
| | | | - Yinphan Tsang
- University of Hawai'i at Mānoa, Honolulu, Hawai'i, USA
| | | | | | | |
Collapse
|
5
|
Lisi PJ, Hogan JD, Holt G, Moody KN, Wren JLK, Kobayashi DR, Blum MJ, McIntyre PB. Stream and ocean hydrodynamics mediate partial migration strategies in an amphidromous Hawaiian goby. Ecology 2022; 103:e3800. [PMID: 35726198 PMCID: PMC9788201 DOI: 10.1002/ecy.3800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 04/27/2022] [Accepted: 05/04/2022] [Indexed: 12/30/2022]
Abstract
Partial migration strategies, in which some individuals migrate but others do not, are widely observed in populations of migratory animals. Such patterns could arise via variation in migratory behaviors made by individual animals, via genetic variation in migratory predisposition, or simply by variation in migration opportunities mediated by environmental conditions. Here we use spatiotemporal variation in partial migration across populations of an amphidromous Hawaiian goby to test whether stream or ocean conditions favor completing its life cycle entirely within freshwater streams rather than undergoing an oceanic larval migration. Across 35 watersheds, microchemical analysis of otoliths revealed that most adult Awaous stamineus were freshwater residents (62% of n = 316 in 2009, 83% of n = 274 in 2011), but we found considerable variation among watersheds. We then tested the hypothesis that the prevalence of freshwater residency increases with the stability of stream flows and decreases with the availability of dispersal pathways arising from ocean hydrodynamics. We found that streams with low variation of daily discharge were home to a higher incidence of freshwater residents in each survey year. The magnitude of the shift in freshwater residency between survey years was positively associated with predicted interannual variability in the success of larval settlement in streams on each island based on passive drift in ocean currents. We built on these findings by developing a theoretical model of goby life history to further evaluate whether mediation of migration outcomes by stream and ocean hydrodynamics could be sufficient to explain the range of partial migration frequency observed across populations. The model illustrates that the proportion of larvae entering the ocean and differential survival of freshwater-resident versus ocean-going larvae are plausible mechanisms for range-wide shifts in migration strategies. Thus, we propose that hydrologic variation in both ocean and stream environments contributes to spatiotemporal variation in the prevalence of migration phenotypes in A. stamineus. Our empirical and theoretical results suggest that the capacity for partial migration could enhance the persistence of metapopulations of diadromous fish when confronted with variable ocean and stream conditions.
Collapse
Affiliation(s)
- Peter J. Lisi
- Center for LimnologyUniversity of WisconsinMadisonWisconsinUSA,Washington Department of Fish and WildlifeMill CreekWashingtonUSA
| | - J. Derek Hogan
- Department of Life SciencesTexas A&M University–Corpus ChristiCorpus ChristiTexasUSA
| | - Galen Holt
- Centre for Regional and Rural FuturesDeakin UniversityWaurn PondsVictoriaAustralia
| | - Kristine N. Moody
- Department of Ecology and Evolutionary BiologyTulane UniversityNew OrleansLouisianaUSA,Department of Ecology and Evolutionary BiologyUniversity of TennesseeKnoxvilleTennesseeUSA,Environmental Sciences DivisionOak Ridge National LaboratoryOak RidgeTennesseeUSA
| | - Johanna L. K. Wren
- Department of OceanographySchool of Ocean and Earth Science and Technology (SOEST), University of Hawaiʻi at MānoaHonoluluHawaiʻiUSA,Pacific Islands Fisheries Science Center, NOAA/NMFS, NOAA IRCHonoluluHawaiʻiUSA
| | - Donald R. Kobayashi
- Pacific Islands Fisheries Science Center, NOAA/NMFS, NOAA IRCHonoluluHawaiʻiUSA
| | - Michael J. Blum
- Department of Ecology and Evolutionary BiologyTulane UniversityNew OrleansLouisianaUSA,Department of Ecology and Evolutionary BiologyUniversity of TennesseeKnoxvilleTennesseeUSA
| | - Peter B. McIntyre
- Center for LimnologyUniversity of WisconsinMadisonWisconsinUSA,Department of Natural Resources and the EnvironmentCornell UniversityIthacaNew YorkUSA
| |
Collapse
|
6
|
Walther BD, Torrance LE. Quantifying euryhaline histories in red drum Sciaenops ocellatus: otolith chemistry and muscle isotope ratios. JOURNAL OF FISH BIOLOGY 2022. [PMID: 35866883 DOI: 10.1111/jfb.15173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
The combined use of otolith chemistry and tissue isotopes has the potential to reveal movements, habitat associations and food web interactions at a variety of spatial and temporal scales. Here, we used a combination of otolith Ba:Ca life history transects with muscle tissue δ13 C and δ15 N values to assess habitat use and oligohaline residence in red drum Sciaenops ocellatus in subtropical estuaries in the northwestern Gulf of Mexico. Tissue isotopes were distinct among capture locations, particularly between bays with differing proximity to freshwater inflow sources. Otolith edge Ba:Ca values and tissue δ13 C values were not correlated. These results indicated that fish were not residing in nor feeding in oligohaline waters for significant periods of time within the tissue turnover window of several months prior to capture. However, spatial differences in tissue isotope values indicated limited mixing among bays and relatively high site fidelity during estuarine occupancy. Lifetime otolith Ba:Ca transects revealed individual variability in the magnitude of residence in oligohaline waters. Using a medium oligohaline occupancy threshold, an estimated 82% of individuals used oligohaline waters at some point in their life. However, 66% of individuals spent less than 20% of their life histories in oligohaline waters, suggesting intermittent and infrequent excursions into low salinity waters. Finally, a literature survey identified 56 peer-reviewed publications using combinations of otolith chemistry and tissue stable isotope ratios with a wide range of marker pairings and study aims. The diversity of ecological questions that can be asked with the combined use of these two approaches will provide valuable insight into fish ecology. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Benjamin D Walther
- Department of Life Sciences, Texas A&M University - Corpus Christi, Corpus Christi, TX, USA
| | - Louisa E Torrance
- Department of Life Sciences, Texas A&M University - Corpus Christi, Corpus Christi, TX, USA
- State Park Division, Texas Parks and Wildlife Department, Austin, TX, USA
| |
Collapse
|
7
|
Ramírez-Álvarez R, Contreras S, Vivancos A, Reid M, López-Rodríguez R, Górski K. Unpacking the complexity of longitudinal movement and recruitment patterns of facultative amphidromous fish. Sci Rep 2022; 12:3164. [PMID: 35210443 PMCID: PMC8873245 DOI: 10.1038/s41598-022-06936-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 02/07/2022] [Indexed: 11/09/2022] Open
Abstract
Longitudinal movement plays fundamental role in habitat colonization and population establishment of many riverine fish species. Movement patterns of amphidromous fish species at fine-scales that would allow characterizing the direction of movement and factors associated with the establishment of specific life-history strategies (resident or amphidromous) in rivers are still poorly understood. We assess fine-scale longitudinal movement variability patterns of facultative amphidromous fish species Galaxias maculatus in order to unfold its life-history variation and associated recruitment habitats. Specifically, we analyzed multi-elemental composition along core to edge transects in ear-bones (otoliths) of each fish using recursive partitions that divides the transect along signal discontinuities. Fine-scale movement assessment in five free-flowing river systems allowed us to identify movement direction and potential recruitment habitats. As such, resident recruitment of G. maculatus in freshwater (71%) and estuarine (24%) habitats was more frequent than amphidromous recruitment (5%), and was linked to availability of slow-flowing lotic or lentic habitats that produce or retain small-bodied prey consumed by their larvae. We postulate that life-history variation and successful recruitment of facultative amphidromous fish such as G. maculatus in river systems is driven by availability of suitable recruitment habitats and natural hydrologic connectivity that allows fish movement to these habitats.
Collapse
Affiliation(s)
| | - Sergio Contreras
- Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Concepción, Chile.,Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Universidad Católica de La Santísima Concepción, Concepción, Chile
| | - Aurélien Vivancos
- Departamento de Sistemas Acuáticos, Facultad de Ciencias Ambientales y Centro EULA - Chile, Universidad de Concepción, Concepción, Chile
| | - Malcolm Reid
- Geology Department, University of Otago, Dunedin, New Zealand
| | - Ruby López-Rodríguez
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Konrad Górski
- Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Concepción, Chile. .,Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile.
| |
Collapse
|
8
|
Quantifying fish otolith mineralogy for trace-element chemistry studies. Sci Rep 2022; 12:2727. [PMID: 35177743 PMCID: PMC8854662 DOI: 10.1038/s41598-022-06721-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 02/03/2022] [Indexed: 12/17/2022] Open
Abstract
Otoliths are frequently used to infer environmental conditions or fish life history events based on trace-element concentrations. However, otoliths can be comprised of any one or combination of the three most common polymorphs of calcium carbonate—aragonite, calcite, and vaterite—which can affect the ecological interpretation of otolith trace-element results. Previous studies have reported heterogeneous calcium carbonate compositions between left and right otoliths but did not provide quantitative assessments of polymorph abundances. In this study, neutron diffraction and Raman spectroscopy were used to identify and quantify mineralogical compositions of Chinook salmon Oncorhynchus tshawytscha otolith pairs. We found mineralogical compositions frequently differed between otoliths in a pair and accurate calcium carbonate polymorph identification was rarely possible by visual inspection alone. The prevalence of multiple polymorphs in otoliths is not well-understood, and future research should focus on identifying otolith compositions and investigate how variations in mineralogy affect trace-element incorporation and potentially bias environmental interpretations.
Collapse
|
9
|
Gabor CR, Kivlin SN, Hua J, Bickford N, Reiskind MOB, Wright TF. Understanding Organismal Capacity to Respond to Anthropogenic Change: Barriers and Solutions. Integr Comp Biol 2021; 61:2132-2144. [PMID: 34279616 DOI: 10.1093/icb/icab162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 06/15/2021] [Accepted: 07/13/2021] [Indexed: 11/14/2022] Open
Abstract
Global environmental changes induced by human activities are forcing organisms to respond at an unprecedented pace. At present we have only a limited understanding of why some species possess the capacity to respond to these changes while others do not. We introduce the concept of multidimensional phenospace as an organizing construct to understanding organismal evolutionary responses to environmental change. We then describe five barriers that currently challenge our ability to understand these responses: 1) Understanding the parameters of environmental change and their fitness effects, 2) Mapping and integrating phenotypic and genotypic variation, 3) Understanding whether changes in phenospace are heritable, 4) Predicting consistency of genotype to phenotype patterns across space and time, and 5) Determining which traits should be prioritized to understand organismal response to environmental change. For each we suggest one or more solutions that would help us surmount the barrier and improve our ability to predict, and eventually manipulate, organismal capacity to respond to anthropogenic change. Additionally, we provide examples of target species that could be useful to examine interactions between phenotypic plasticity and adaptive evolution in changing phenospace.
Collapse
Affiliation(s)
- Caitlin R Gabor
- Department of Biology, Population and Conservation Biology Group, Texas State University, San Marcos, TX, 78666, USA.,The Xiphophorus Genetic Stock Center, Texas State University, San Marcos, TX, 78666, USA
| | - Stephanie N Kivlin
- Department of Ecology and Evolutionary Biology, University of Tennessee Knoxville, Knoxville, TN, 37996, USA
| | - Jessica Hua
- Biological Sciences Department, Binghamton University (SUNY), Binghamton, NY, 13902, USA
| | - Nate Bickford
- Biology Department, Colorado State University Pueblo, Pueblo, CO 81003, USA
| | | | - Timothy F Wright
- Biology Department, New Mexico State University, Las Cruces, NM, 88003, USA
| |
Collapse
|
10
|
Rosenthal WC, McIntyre PB, Lisi PJ, Prather RB, Moody KN, Blum MJ, Hogan JD, Schoville SD. Invasion and rapid adaptation of guppies ( Poecilia reticulata) across the Hawaiian Archipelago. Evol Appl 2021; 14:1747-1761. [PMID: 34295361 PMCID: PMC8288002 DOI: 10.1111/eva.13236] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 02/12/2021] [Accepted: 03/12/2021] [Indexed: 01/19/2023] Open
Abstract
How much does natural selection, as opposed to genetic drift, admixture, and gene flow, contribute to the evolution of invasive species following introduction to a new environment? Here we assess how evolution can shape biological invasions by examining population genomic variation in non-native guppies (Poecilia reticulata) introduced to the Hawaiian Islands approximately a century ago. By examining 18 invasive populations from four Hawaiian islands and four populations from the native range in northern South America, we reconstructed the history of introductions and evaluated population structure as well as the extent of ongoing gene flow across watersheds and among islands. Patterns of differentiation indicate that guppies have developed significant population structure, with little natural or human-mediated gene flow having occurred among populations following introduction. Demographic modeling and admixture graph analyses together suggest that guppies were initially introduced to O'ahu and Maui and then translocated to Hawai'i and Kaua'i. We detected evidence for only one introduction event from the native range, implying that any adaptive evolution in introduced populations likely utilized the genetic variation present in the founding population. Environmental association tests accounting for population structure identified loci exhibiting signatures of adaptive variation related to predators and landscape characteristics but not nutrient regimes. When paired with high estimates of effective population sizes and detectable population structure, the presence of environment-associated loci supports the role of natural selection in shaping contemporary evolution of Hawaiian guppy populations. Our findings indicate that local adaptation may engender invasion success, particularly in species with life histories that facilitate rapid evolution. Finally, evidence of low gene flow between populations suggests that removal could be an effective approach to control invasive guppies across the Hawaiian archipelago.
Collapse
Affiliation(s)
- William C. Rosenthal
- Center for LimnologyUniversity of Wisconsin‐MadisonMadisonWIUSA
- Department of BotanyUniversity of WyomingLaramieWYUSA
| | - Peter B. McIntyre
- Center for LimnologyUniversity of Wisconsin‐MadisonMadisonWIUSA
- Department of Natural ResourcesCornell UniversityIthacaNYUSA
| | - Peter J. Lisi
- Center for LimnologyUniversity of Wisconsin‐MadisonMadisonWIUSA
| | - Robert B. Prather
- Department of Evolution, Ecology, and Organismal BiologyUniversity of California RiversideRiversideCAUSA
| | - Kristine N. Moody
- Department of Ecology and Evolutionary BiologyUniversity of Tennessee KnoxvilleKnoxvilleTNUSA
- The ByWater InstituteTulane UniversityNew OrleansLAUSA
- Oak Ridge National LaboratoryOak RidgeTNUSA
| | - Michael J. Blum
- Department of Ecology and Evolutionary BiologyUniversity of Tennessee KnoxvilleKnoxvilleTNUSA
- The ByWater InstituteTulane UniversityNew OrleansLAUSA
| | - James Derek Hogan
- Department of Life SciencesTexas A&M University‐Corpus ChristiCorpus ChristiTXUSA
| | | |
Collapse
|
11
|
Moody KN, Scherer AE, O’Connor DAJS, Heim-Ballew H, Lisi PJ, Hogan JD, McIntyre PB, Blum MJ. Effectiveness and outcomes of invasive species removal in Hawaiian streams. Biol Invasions 2021. [DOI: 10.1007/s10530-021-02468-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
12
|
Abstract
Diadromy, the predictable movements of individuals between marine and freshwater environments, is biogeographically and phylogenetically widespread across fishes. Thus, despite the high energetic and potential fitness costs involved in moving between distinct environments, diadromy appears to be an effective life history strategy. Yet, the origin and molecular mechanisms that underpin this migratory behavior are not fully understood. In this review, we aim first to summarize what is known about diadromy in fishes; this includes the phylogenetic relationship among diadromous species, a description of the main hypotheses regarding its origin, and a discussion of the presence of non-migratory populations within diadromous species. Second, we discuss how recent research based on -omics approaches (chiefly genomics, transcriptomics, and epigenomics) is beginning to provide answers to questions on the genetic bases and origin(s) of diadromy. Finally, we suggest future directions for -omics research that can help tackle questions on the evolution of diadromy.
Collapse
Affiliation(s)
- M. Lisette Delgado
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Daniel E. Ruzzante
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada
| |
Collapse
|
13
|
Shaw AK. Causes and consequences of individual variation in animal movement. MOVEMENT ECOLOGY 2020; 8:12. [PMID: 32099656 PMCID: PMC7027015 DOI: 10.1186/s40462-020-0197-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 02/05/2020] [Indexed: 05/23/2023]
Abstract
Animal movement comes in a variety of 'types' including small foraging movements, larger one-way dispersive movements, seasonally-predictable round-trip migratory movements, and erratic nomadic movements. Although most individuals move at some point throughout their lives, movement patterns can vary widely across individuals within the same species: differing within an individual over time (intra-individual), among individuals in the same population (inter-individual), or among populations (inter-population). Yet, studies of movement (theoretical and empirical alike) more often focus on understanding 'typical' movement patterns than understanding variation in movement. Here, I synthesize current knowledge of movement variation (drawing parallels across species and movement types), describing the causes (what factors contribute to individual variation), patterns (what movement variation looks like), consequences (why variation matters), maintenance (why variation persists), implications (for management and conservation), and finally gaps (what pieces we are currently missing). By synthesizing across scales of variation, I span across work on plasticity, personality, and geographic variation. Individual movement can be driven by factors that act at the individual, population, community and ecosystem level and have ramifications at each of these levels. Generally the consequences of movement are less well understood than the causes, in part because the effects of movement variation are often nested, with variation manifesting at the population level, which in turn affects communities and ecosystems. Understanding both cause and consequence is particularly important for predicting when variation begets variation in a positive feedback loop, versus when a negative feedback causes variation to be dampened successively. Finally, maintaining standing variation in movement may be important for facilitating species' ability to respond to future environmental change.
Collapse
Affiliation(s)
- Allison K. Shaw
- Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MN 55108 USA
| |
Collapse
|
14
|
Heim-Ballew H, Moody KN, Blum MJ, McIntyre PB, Hogan JD. Migratory flexibility in native Hawai'ian amphidromous fishes. JOURNAL OF FISH BIOLOGY 2020; 96:456-468. [PMID: 31814124 DOI: 10.1111/jfb.14224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
We assessed the prevalence of life history variation across four of the five native amphidromous Hawai'ian gobioids to determine whether some or all exhibit evidence of partial migration. Analysis of otolith Sr.: Ca concentrations affirmed that all are amphidromous and revealed evidence of partial migration in three of the four species. We found that 25% of Lentipes concolor (n = 8), 40% of Eleotris sandwicensis (n = 20) and 29% of Stenogobius hawaiiensis (n = 24) did not exhibit a migratory life-history. In contrast, all individuals of Sicyopterus stimpsoni (n = 55) included in the study went to sea as larvae. Lentipes concolor exhibited the shortest mean larval duration (LD) at 87 days, successively followed by E. sandwicensis (mean LD = 102 days), S. hawaiiensis (mean LD = 114 days) and S. stimpsoni (mean LD = 120 days). These findings offer a fresh perspective on migratory life histories that can help improve efforts to conserve and protect all of these and other at-risk amphidromous species that are subject to escalating anthropogenic pressures in both freshwater and marine environments.
Collapse
Affiliation(s)
- Heidi Heim-Ballew
- Department of Life Sciences, Texas A&M University-Corpus Christi, Corpus Christi, Texas, USA
| | - Kristine N Moody
- Department of Ecology and Evolutionary Biology, University of Tennessee-Knoxville, Knoxville, Tennessee, USA
| | - Michael J Blum
- Department of Ecology and Evolutionary Biology, University of Tennessee-Knoxville, Knoxville, Tennessee, USA
| | - Peter B McIntyre
- Center for Limnology, University of Wisconsin - Madison, Madison, Wisconsin, USA
- Department of Natural Resources, Cornell University, Ithaca, New York, USA
| | - James D Hogan
- Department of Life Sciences, Texas A&M University-Corpus Christi, Corpus Christi, Texas, USA
| |
Collapse
|
15
|
Spatial distribution of flow currents and habitats in artificial buffer zones for ecosystem-based coastal engineering. Glob Ecol Conserv 2019. [DOI: 10.1016/j.gecco.2019.e00764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
16
|
Ducros D, Morellet N, Patin R, Atmeh K, Debeffe L, Cargnelutti B, Chaval Y, Lourtet B, Coulon A, Hewison AJM. Beyond dispersal versus philopatry? Alternative behavioural tactics of juvenile roe deer in a heterogeneous landscape. OIKOS 2019. [DOI: 10.1111/oik.06793] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Delphine Ducros
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum national d'Histoire naturelle, Centre National de la Recherche Scientifique, Sorbonne Univ CP 135, 57 rue Cuvier FR‐75005 Paris France
- CEFS, Univ. de Toulouse, INRA Castanet‐Tolosan France
| | | | - Rémi Patin
- CEFE, CNRS, Univ. Montpellier, EPHE, IRD Montpellier France
| | - Kamal Atmeh
- Laboratoire de Biométrie et Biologie Evolutive (LBBE), Univ. Lyon, CNRS Villeurbanne France
| | - Lucie Debeffe
- CEFS, Univ. de Toulouse, INRA Castanet‐Tolosan France
| | | | | | - Bruno Lourtet
- CEFS, Univ. de Toulouse, INRA Castanet‐Tolosan France
| | - Aurélie Coulon
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum national d'Histoire naturelle, Centre National de la Recherche Scientifique, Sorbonne Univ CP 135, 57 rue Cuvier FR‐75005 Paris France
- CEFE, CNRS, Univ. Montpellier, EPHE, IRD Montpellier France
| | | |
Collapse
|
17
|
Roberts BH, Morrongiello JR, King AJ, Morgan DL, Saunders TM, Woodhead J, Crook DA. Migration to freshwater increases growth rates in a facultatively catadromous tropical fish. Oecologia 2019; 191:253-260. [PMID: 31278439 DOI: 10.1007/s00442-019-04460-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 06/30/2019] [Indexed: 11/25/2022]
Abstract
Diadromy is a form of migration where aquatic organisms undergo regular movements between fresh and marine waters for the purposes of feeding and reproduction. Despite having arisen in independent lineages of fish, gastropod molluscs and crustaceans, the evolutionary drivers of diadromous migration remain contentious. We test a key aspect of the 'productivity hypothesis', which proposes that diadromy arises in response to primary productivity differentials between marine and freshwater habitats. Otolith chemistry and biochronology data are analysed in a facultatively catadromous tropical fish (barramundi, Lates calcarifer) to determine the effect of freshwater residence on growth rates. Individuals that accessed freshwater grew ~ 25% faster on average than estuarine residents in the year following migration, suggesting that catadromy provides a potential fitness advantage over non-catadromous (marine/estuarine) life histories, as predicted by the productivity hypothesis. Although diadromous barramundi exhibited faster growth than non-diadromous fish, we suggest that the relative reproductive success of diadromous and non-diadromous contingents is likely to be strongly influenced by local environmental variability such as temporal differences in river discharge, and that this may facilitate the persistence of diverse life history strategies within populations.
Collapse
Affiliation(s)
- Brien H Roberts
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia.
| | - John R Morrongiello
- School of BioSciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Alison J King
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia
| | - David L Morgan
- Freshwater Fish Group and Fish Health Unit, Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, Australia
| | - Thor M Saunders
- Fisheries Research, Department of Primary Industries and Fisheries, Berrimah, NT, Australia
| | - Jon Woodhead
- School of Earth Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - David A Crook
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia
| |
Collapse
|
18
|
Kaemingk MA, Swearer SE, Bury SJ, Shima JS. Landscape edges shape dispersal and population structure of a migratory fish. Oecologia 2019; 190:579-588. [PMID: 31230154 DOI: 10.1007/s00442-019-04440-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 06/17/2019] [Indexed: 10/26/2022]
Abstract
Many freshwater organisms have a life-history stage that can disperse through seawater. This has obvious benefits for colonization and connectivity of fragmented sub-populations, but requires a physiologically challenging migration across a salinity boundary. We consider the role of landscape boundaries between freshwater and seawater habitats, and evaluate their potential effects on traits and developmental histories of larvae and juveniles (i.e., dispersing life-history stages) of an amphidromous fish, Galaxias maculatus. We sampled juvenile fish on their return to 20 rivers in New Zealand: 10 rivers had abrupt transitions to the sea (i.e., emptying to an open coastline); these were paired with 10 nearby rivers that had gradual transitions to the sea (i.e., emptying into estuarine embayments). We reconstructed individual dispersal histories using otolith microstructure, otolith microchemistry, and stable isotope analysis. We found that fish recruiting to embayment rivers had distinct dispersal and foraging histories, were slower growing, smaller in size, and older than fish recruiting to nearby non-embayment rivers. Our results indicate that landscape edges can affect dispersal capabilities of aquatic organisms, potentially leading to divergent life-history strategies (i.e., limited- versus widespread-dispersal). Patterns also suggest that dispersal potential among landscape boundaries can create heterogeneity in the traits of individuals, with implications for metapopulation dynamics.
Collapse
Affiliation(s)
- M A Kaemingk
- Victoria University Coastal Ecology Laboratory, School of Biological Sciences, Victoria University of Wellington, Wellington, 6140, New Zealand. .,Current Address: Nebraska Cooperative Fish and Wildlife Research Unit, School of Natural Resources, University of Nebraska, Lincoln, NE, 68583, USA.
| | - S E Swearer
- School of BioSciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - S J Bury
- National Institute of Water and Atmospheric Research Ltd, Greta Point, 301 Evans Bay Parade, Hataitai, Wellington, 6021, New Zealand
| | - J S Shima
- Victoria University Coastal Ecology Laboratory, School of Biological Sciences, Victoria University of Wellington, Wellington, 6140, New Zealand
| |
Collapse
|
19
|
Moody KN, Wren JLK, Kobayashi DR, Blum MJ, Ptacek MB, Blob RW, Toonen RJ, Schoenfuss HL, Childress MJ. Evidence of local adaptation in a waterfall-climbing Hawaiian goby fish derived from coupled biophysical modeling of larval dispersal and post-settlement selection. BMC Evol Biol 2019; 19:88. [PMID: 30975077 PMCID: PMC6458715 DOI: 10.1186/s12862-019-1413-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 03/26/2019] [Indexed: 12/24/2022] Open
Abstract
Background Local adaptation of marine and diadromous species is thought to be a product of larval dispersal, settlement mortality, and differential reproductive success, particularly in heterogeneous post-settlement habitats. We evaluated this premise with an oceanographic passive larval dispersal model coupled with individual-based models of post-settlement selection and reproduction to infer conditions that underlie local adaptation in Sicyopterus stimpsoni, an amphidromous Hawaiian goby known for its ability to climb waterfalls. Results Our model results demonstrated that larval dispersal is spatio-temporally asymmetric, with more larvae dispersed from the southeast (the Big Island) to northwest (Kaua‘i) along the archipelago, reflecting prevailing conditions such as El Niño/La Niña oscillations. Yet connectivity is nonetheless sufficient to result in homogenous populations across the archipelago. We also found, however, that ontogenetic shifts in habitat can give rise to adaptive morphological divergence when the strength of predation-driven post-settlement selection crosses a critical threshold. Notably, our simulations showed that larval dispersal is not the only factor determining the likelihood of morphological divergence. We found adaptive potential and evolutionary trajectories of S. stimpsoni were greater on islands with stronger environmental gradients and greater variance in larval cohort morphology due to fluctuating immigration. Conclusions Contrary to expectation, these findings indicate that immigration can act in concert with selection to favor local adaptation and divergence in species with marine larval dispersal. Further development of model simulations, parameterized to reflect additional empirical estimates of abiotic and biotic factors, will help advance our understanding of the proximate and ultimate mechanisms driving adaptive evolution, population resilience, and speciation in marine-associated species. Electronic supplementary material The online version of this article (10.1186/s12862-019-1413-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Kristine N Moody
- Department of Ecology and Evolutionary Biology, University of Tennessee Knoxville, Knoxville, TN, 37996, USA. .,The ByWater Institute, Tulane University, New Orleans, LA, 70118, USA. .,Department of Biological Sciences, Clemson University, Clemson, SC, 29634, USA.
| | - Johanna L K Wren
- Department of Oceanography, School of Ocean and Earth Science and Technology (SOEST), University of Hawai'i at Mānoa, Honolulu, HI, 96822, USA.,Joint Institute of Marine and Atmospheric Research, University of Hawai'i at Mānoa, Honolulu, HI, 96822, USA.,Pacific Islands Fisheries Science Center, NOAA/NMFS, NOAA IRC, Honolulu, HI, 96818, USA
| | - Donald R Kobayashi
- Pacific Islands Fisheries Science Center, NOAA/NMFS, NOAA IRC, Honolulu, HI, 96818, USA
| | - Michael J Blum
- Department of Ecology and Evolutionary Biology, University of Tennessee Knoxville, Knoxville, TN, 37996, USA.,The ByWater Institute, Tulane University, New Orleans, LA, 70118, USA
| | - Margaret B Ptacek
- Department of Biological Sciences, Clemson University, Clemson, SC, 29634, USA
| | - Richard W Blob
- Department of Biological Sciences, Clemson University, Clemson, SC, 29634, USA
| | - Robert J Toonen
- Hawai'i Institute of Marine Biology, University of Hawai'i at Mānoa, Kāne'ohe, HI, 96744, USA
| | - Heiko L Schoenfuss
- Aquatic Toxicology Laboratory, St. Cloud State University, St Cloud, MN, 56301, USA
| | - Michael J Childress
- Department of Biological Sciences, Clemson University, Clemson, SC, 29634, USA
| |
Collapse
|
20
|
Hogan JD, Kozdon R, Blum MJ, Gilliam JF, Valley JW, McIntyre PB. Reconstructing larval growth and habitat use in an amphidromous goby using otolith increments and microchemistry. JOURNAL OF FISH BIOLOGY 2017; 90:1338-1355. [PMID: 27990639 DOI: 10.1111/jfb.13240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 11/04/2016] [Indexed: 06/06/2023]
Abstract
High-resolution analysis of growth increments, trace element chemistry and oxygen isotope ratios (δ18 O) in otoliths were combined to assess larval and post-larval habitat use and growth of Awaous stamineus, an amphidromous goby native to Hawai'i. Otolith increment widths indicate that all individuals experience a brief period of rapid growth during early life as larvae and that the duration of this growth anomaly is negatively correlated with larval duration. A protracted high-growth period early in larval life is associated with a lower ratio of Sr:Ca, which may reflect low salinity conditions in nearshore habitats. A distinct shift in δ18 O (range: 4-5‰) is closely associated with the metamorphic mark in otoliths, indicating that larval metamorphosis occurs promptly upon return to fresh water. Strontium and other trace elements are not as tightly coupled to the metamorphosis mark, but confirm the marine-to-freshwater transition. Integration of microstructural and microchemical approaches reveals that larvae vary substantially in growth rate, possibly in association with habitat differences. Although time and financial costs make it difficult to achieve large sample sizes, present results show that examining even a small number of individuals can lead to novel inferences about early life history in diadromous fishes and illustrates the value of integrating analyses.
Collapse
Affiliation(s)
- J D Hogan
- Department of Life Sciences, Texas A&M University - Corpus Christi, 6300 Ocean Drive, Unit 5892, Corpus Christi, TX, 78412, U.S.A
| | - R Kozdon
- WiscSIMS, Department of Geoscience, University of Wisconsin - Madison, 1215 W. Dayton St, Madison, WI, 53706, U.S.A
| | - M J Blum
- Department of Ecology and Evolutionary Biology, Tulane University, 400 Lindy Boggs Building, New Orleans, LA, 70118, U.S.A
| | - J F Gilliam
- Department of Biology, North Carolina State University, Raleigh, NC, 27695, U.S.A
| | - J W Valley
- WiscSIMS, Department of Geoscience, University of Wisconsin - Madison, 1215 W. Dayton St, Madison, WI, 53706, U.S.A
| | - P B McIntyre
- Center for Limnology, University of Wisconsin - Madison, 680 N. Park St, Madison, WI, 53706, U.S.A
| |
Collapse
|
21
|
Inconsistency between salinity preference and habitat salinity in euryhaline gobiid fishes in the Isazu River, northern Kyoto Prefecture. J ETHOL 2017. [DOI: 10.1007/s10164-017-0510-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
22
|
Walther BD, Limburg KE, Jones CM, Schaffler JJ. Frontiers in otolith chemistry: insights, advances and applications. JOURNAL OF FISH BIOLOGY 2017; 90:473-479. [PMID: 28220478 DOI: 10.1111/jfb.13266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- B D Walther
- Department of Life Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX 78412, U.S.A
| | - K E Limburg
- Department of Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, U.S.A
| | - C M Jones
- Center for Quantitative Fisheries Ecology, Old Dominion University, Norfolk, VA 23529, U.S.A
| | - J J Schaffler
- Muckleshoot Indian Tribe, 39015 172nd Ave SE, Auburn, WA 98092, U.S.A
| |
Collapse
|
23
|
Alda F, Gagne RB, Walter RP, Hogan JD, Moody KN, Zink F, McIntyre PB, Gilliam JF, Blum MJ. Colonization and demographic expansion of freshwater fauna across the Hawaiian archipelago. J Evol Biol 2016; 29:2054-2069. [DOI: 10.1111/jeb.12929] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 06/05/2016] [Accepted: 06/28/2016] [Indexed: 12/25/2022]
Affiliation(s)
- F. Alda
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
- Tulane-Xavier Center for Bioenvironmental Research; Tulane University; New Orleans LA USA
| | - R. B. Gagne
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
| | - R. P. Walter
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
- Department of Biological Science; California State University, Fullerton; Fullerton CA USA
| | - J. D. Hogan
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
- Department of Life Sciences; Texas A & M University - Corpus Christi; Corpus Christi TX USA
| | - K. N. Moody
- Tulane-Xavier Center for Bioenvironmental Research; Tulane University; New Orleans LA USA
- Department of Biological Sciences; Clemson University; Clemson SC USA
| | - F. Zink
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
| | - P. B. McIntyre
- Center for Limnology; University of Wisconsin-Madison; Madison WI USA
| | - J. F. Gilliam
- Department of Biological Sciences; North Carolina State University; Raleigh NC USA
| | - M. J. Blum
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
- Tulane-Xavier Center for Bioenvironmental Research; Tulane University; New Orleans LA USA
| |
Collapse
|
24
|
Mutual dilution of infection by an introduced parasite in native and invasive stream fishes across Hawaii. Parasitology 2016; 143:1605-14. [PMID: 27585480 DOI: 10.1017/s0031182016001001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The presence of introduced hosts can increase or decrease infections of co-introduced parasites in native species of conservation concern. In this study, we compared parasite abundance, intensity, and prevalence between native Awaous stamineus and introduced poeciliid fishes by a co-introduced nematode parasite (Camallanus cotti) in 42 watersheds across the Hawaiian Islands. We found that parasite abundance, intensity and prevalence were greater in native than introduced hosts. Parasite abundance, intensity and prevalence within A. stamineus varied between years, which largely reflected a transient spike in infection in three remote watersheds on Molokai. At each site we measured host factors (length, density of native host, density of introduced host) and environmental factors (per cent agricultural and urban land use, water chemistry, watershed area and precipitation) hypothesized to influence C. cotti abundance, intensity and prevalence. Factors associated with parasitism differed between native and introduced hosts. Notably, parasitism of native hosts was higher in streams with lower water quality, whereas parasitism of introduced hosts was lower in streams with lower water quality. We also found that parasite burdens were lower in both native and introduced hosts when coincident. Evidence of a mutual dilution effect indicates that introduced hosts can ameliorate parasitism of native fishes by co-introduced parasites, which raises questions about the value of remediation actions, such as the removal of introduced hosts, in stemming the rise of infectious disease in species of conservation concern.
Collapse
|
25
|
Moody KN, Hunter SN, Childress MJ, Blob RW, Schoenfuss HL, Blum MJ, Ptacek MB. Local adaptation despite high gene flow in the waterfall-climbing Hawaiian goby,Sicyopterus stimpsoni. Mol Ecol 2015; 24:545-63. [DOI: 10.1111/mec.13016] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 11/12/2014] [Accepted: 11/22/2014] [Indexed: 01/27/2023]
Affiliation(s)
- K. N. Moody
- Department of Biological Sciences; Clemson University; 132 Long Hall Clemson SC 29634 USA
| | - S. N. Hunter
- Department of Biological Sciences; Clemson University; 132 Long Hall Clemson SC 29634 USA
- Department of Ecology and Evolutionary Biology; Tulane University; 400 Lindy Boggs New Orleans LA 70118 USA
| | - M. J. Childress
- Department of Biological Sciences; Clemson University; 132 Long Hall Clemson SC 29634 USA
| | - R. W. Blob
- Department of Biological Sciences; Clemson University; 132 Long Hall Clemson SC 29634 USA
| | - H. L. Schoenfuss
- Aquatic Toxicology Laboratory; St. Cloud State University; 720 Fourth Ave S, WSB-273 St. Cloud MN 56301 USA
| | - M. J. Blum
- Department of Ecology and Evolutionary Biology; Tulane University; 400 Lindy Boggs New Orleans LA 70118 USA
| | - M. B. Ptacek
- Department of Biological Sciences; Clemson University; 132 Long Hall Clemson SC 29634 USA
| |
Collapse
|