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Carnicer C, Lima LB, Taguti TL, Oliveira FJM, Lima-Junior DP. Spatial and seasonal distribution of fish eggs and larvae in one free-flowing river in the Neotropical savanna. JOURNAL OF FISH BIOLOGY 2023; 103:481-495. [PMID: 37212501 DOI: 10.1111/jfb.15455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/17/2023] [Indexed: 05/23/2023]
Abstract
Reproduction is one of the most important biological aspects for the maintenance of viable populations, and understanding the spatial and seasonal patterns in the reproduction of Neotropical fish is a point that still needs considerable investigation. In this study, the main aim was to reduce knowledge gaps concerning fish eggs and larvae distribution patterns. Therefore, the River Araguaia basin, one of the main hydrographic basins of the Neotropical savanna, was used as the focal point of study. Samplings of fish eggs and larvae were carried across the hydrological regime during flooding and drought events between December 2018 and July 2020 at 15 sites distributed along a 350 km stretch of the River Araguaia basin. Fish eggs and larvae were found in all sampling sites, with the highest number of catches in the flood season. The fish larvae were represented by 5 orders, 22 families and 22 at the genus or species level. Both environments, tributary and main channel of the River Araguaia, are important for fish reproduction, and no difference was found in the use between the main channel and the tributaries. The results showed that spatial factors are important to explain the change in larval composition, which may have a wide or restricted distribution related to specific habitats. The main factors related to the reproductive activity of fish in this region are the physical and chemical changes in the water that occur in the flood season. These results indicate that the River Araguaia basin has environmental integrity and provides favourable conditions for the reproductive activity of fish, including long-distance migratory species. Considering this, mitigate measures that guarantee the preservation of the natural flow are crucial for the maintenance of fish biodiversity.
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Affiliation(s)
- Cleide Carnicer
- Programa de Pós-graduação em Ecologia e Conservação, Universidade do Estado de Mato Grosso - UNEMAT, Nova Xavantina, Brazil
- Laboratório de Ecologia e Conservação de Ecossistemas Aquáticos, Universidade Federal de Mato Grosso, Pontal do Araguaia, Brazil
| | - Luciano B Lima
- Laboratório de Ecologia e Conservação de Ecossistemas Aquáticos, Universidade Federal de Mato Grosso, Pontal do Araguaia, Brazil
| | - Tátia Leika Taguti
- Laboratório de Ecologia e Conservação de Ecossistemas Aquáticos, Universidade Federal de Mato Grosso, Pontal do Araguaia, Brazil
| | - Fagner Junior M Oliveira
- Laboratório de Ecologia e Conservação de Ecossistemas Aquáticos, Universidade Federal de Mato Grosso, Pontal do Araguaia, Brazil
| | - Dilermando Pereira Lima-Junior
- Programa de Pós-graduação em Ecologia e Conservação, Universidade do Estado de Mato Grosso - UNEMAT, Nova Xavantina, Brazil
- Laboratório de Ecologia e Conservação de Ecossistemas Aquáticos, Universidade Federal de Mato Grosso, Pontal do Araguaia, Brazil
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Koushlesh SK, Johnson C, Sarkar UK, Das AK, Das BK, Lianthuamluaia L, Puthiyottil M, Naskar BK. Exploring fish assemblage structure, feeding guild, and water quality in a typical river-reservoir interface of tropical large reservoir environment, Central India. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:2179-2204. [PMID: 35930149 DOI: 10.1007/s11356-022-22267-7] [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: 01/17/2022] [Accepted: 07/23/2022] [Indexed: 06/15/2023]
Abstract
The present study aims to understand the spatio-temporal dynamics in habitat ecology and fish assemblage and determine the relationship of habitat transition and fish distribution in a large riverine-reservoir cascade system (Sardar Sarovar Reservoir part in Madhya Pradesh). This study was carried out along a 125-km riverine-reservoir interface (RRI) during 2018-2020. The study showed presence of a total of 110 fish species (104 spp. in upstream main Narmada River stretch excluding reservoirs, 56 in RRI, and 39 in Sardar Sarovar reservoir). We recorded 50 species common in upstream riverine stretch of Narmada and the RRI while RRI uniquely harbored 3 native species (Chitala chitala, Labeo boga, Salmostoma phulo) not previously reported from Narmada River stretch upstream. The similarity percentage (SIMPER) analysis showed presence of S. phulo causing 27.91%, Schistura dayi (3.71%), and Rita pavimentata (3.41%) of dissimilarity among Maheshwar (S1), Rajghat (S2), Koteshwar (S3) non-confluence zone, and Kakrana (S4)-confluence zone. The analysis of data indicated disappearance of some species like deccan peninsular carp Labeo fimbriatus, Mahseer Tor khudree which was earlier reported but was absent in recent years. The statistical correlation of environmental variables with observed abundances of fish feeding guilds showed significant positive correlation with specific conductivity and total dissolved solid content of the water. The canonical correspondence analysis (CCA) indicated association among omnivorous fishes of the reservoir with water temperature; total dissolved solids; specific conductivity; total alkalinity; chlorophyll; and NO3-N. The herbivore fishes were found to be more associated with magnesium, dissolved oxygen, and phosphorus content of the water while insectivorous fishes were more associated with the silicate and transparency of the water. The abundance of omnivores species indicated dominance of generalist fish species rather than specialists in the interface region of reservoir showing conservation and ecological importance of the ecosystem. The baseline information generated on fish assemblage and ecological perspectives of the river reservoir interface and science-based management recommendations formulated in the study are critical for sustaining fish diversity, promoting fisheries enhancement, and management planning of tropical large reservoirs.
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Affiliation(s)
| | - Canciyal Johnson
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India
| | - Uttam Kumar Sarkar
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India.
| | - Archan Kanti Das
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India
| | - Basanta Kumar Das
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India
| | | | - Mishal Puthiyottil
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India
| | - Bablu Kumar Naskar
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, 700 120, India
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OLIVEIRA LUCASSDE, CAJADO RUINERISA, SANTOS LUANRDOS, ZACARDI DIEGOM. Structure of the ichthyoplankton community in a Neotropical floodplain lake affected by environmental degradation. AN ACAD BRAS CIENC 2022; 94:e20201598. [DOI: 10.1590/0001-3765202220201598] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 04/21/2021] [Indexed: 01/06/2023] Open
Affiliation(s)
| | - RUINERIS A. CAJADO
- Universidade Federal do Oeste do Pará (UFOPA), Brazil; Universidade Federal do Pará (UFPA), Brazil
| | | | - DIEGO M. ZACARDI
- Universidade Federal do Oeste do Pará (UFOPA), Brazil; Universidade Federal do Pará (UFPA), Brazil
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Lagos ME, Castillo N, Albarrán-Mélzer N, Pinochet J, Gebauer P, Urbina MA. Age dependent physiological tolerances explain population dynamics and distribution in the intertidal zone: A study with porcelain crabs. MARINE ENVIRONMENTAL RESEARCH 2021; 169:105343. [PMID: 33930797 DOI: 10.1016/j.marenvres.2021.105343] [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: 01/04/2021] [Revised: 04/13/2021] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
Population dynamics and their response to environmental stressors have been widely studied in intertidal organisms. However, how these dynamics and responses change with animal age have been largely ignored to date. Traditionally, it is assumed that younger organisms are more sensitive than adults to environmental stressors; under this perspective it could be predicted that fully grown organisms should be able to occupy the harsh upper limit of their intertidal habitat. However, in some intertidal Porcelain crabs the opposite distribution has been observed. Using Petrolisthes laevigatus, we tested the physiological tolerance of crabs of different sizes (i.e. age) and evaluated how this trait shapes population dynamics (distribution and small-scale migrations under different weather conditions). We determined the abundance and size distribution of P. laevigatus at the middle and upper intertidal levels during sunny and rainy days, finding that abundances decreased drastically and size distribution shifted to smaller individuals on rainy days. In the laboratory, survival and behavioural responses of individuals in water at 5, 10, 15 and 33 PSU salinities were evaluated. Young crabs were found in higher proportion in the upper intertidal while fully grown crabs (i.e. adults) mainly occupied the middle intertidal zone. Young crabs had a higher osmoregulatory capacity than adults, as they were better at regulating passive water uptake when challenged with diluted seawater. This was also correlated with a lower lethal salinity LC50 in young crabs compared to adults. Behavioural trials showed that young crabs performed better escaping in both water and air, at intermediate and reduced salinities than adults. Therefore, weather influences small scale migrations from the upper to the lower intertidal zone, and this migration is also age-dependent, with younger crabs being more tolerant to low salinities and therefore allowing them to remain in the upper intertidal zone during raniny days.
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Affiliation(s)
- Marcelo E Lagos
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile.
| | - Nicole Castillo
- Facultad de Ciencias Ambientales y Centro EULA, Universidad de Concepción, Concepción, 4070386, Chile.
| | - Natalia Albarrán-Mélzer
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile; Laboratorio de Malacología, División Académica de Ciencias Biológicas, Universidad Juarez Autónoma de Tabasco, Km 0.5. Carretera Villahermosa- Cárdenas, Villahermosa, C.P., 94250, Tabasco, Mexico.
| | - Javier Pinochet
- Departamento de Ecología, Facultad de Ciencias, Universidad Católica de La Santísima Concepción, Concepción, Chile; Programa de Doctorado en Sistemática y Biodiversidad, Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Campus Concepción, Casilla 160-C, Concepción, Chile.
| | - Paulina Gebauer
- Centro i~mar, Universidad de Los Lagos, Camino Chinquihue Km 6, Puerto Montt, Chile.
| | - Mauricio A Urbina
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile; Instituto Milenio de Oceanografía (IMO), Universidad de Concepción, PO Box 1313, Concepción, Chile.
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Azevedo-Santos VM, Daga VS, Pelicice FM, Henry R. Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir. BIOTA NEOTROPICA 2021. [DOI: 10.1590/1676-0611-bn-2021-1227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract: We investigated spatial and temporal variations in the distribution of fish eggs and larvae in the Guareí River, a free-flowing tributary located in the upper section of the Jurumirim Reservoir, Paranapanema River, Brazil. Fish eggs and larvae were sampled ~ fortnightly from November 2017 to March 2018 (Cycle 1), and from November 2018 to March 2019 (Cycle 2), at three sites distributed along the entire course of the Guareí River. We collected 859 fish eggs and 1,340 larvae, comprising 19 taxa. We found reproductive activity of several fish species in the Guareí River, including long-distance migrants. However, there was no spatial differences in the assemblage structure and densities of fish eggs and larvae along the channel of Guareí River. We recorded temporal differences in larvae density only in Cycle 2. The consistent capture of fish eggs and larvae in two reproductive cycles is strong evidence that this river is a spawning site for a variety of fish species. Thus, we recommend maintaining its natural flow regime.
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