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Journal articles on the topic 'Ichthyoplankton'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Li, Shuofu, Jianguo He, and Zhigang Lai. "The Interannual Variations of Summer Ichthyoplankton in the Pearl River Estuary as a Response to Climate Change." Journal of Marine Science and Engineering 11, no. 1 (2023): 209. http://dx.doi.org/10.3390/jmse11010209.

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The impacts of climate change on ichthyoplankton have barely been examined in the Pearl River estuary (PRE). Using the fish larvae and eggs caught in the estuary in the summer from 2003 to 2018 (except for the years 2004 and 2008), the spatial and temporal variations in ichthyoplankton’s abundance, species composition, and community structure were examined and linked to the variability of the climate system. A positive/negative correlation was found between the abundance and taxonomic diversity of the fish larvae and the monthly Oceanic Niño Index. However, the variation in larval fish’s speci

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Reynalte-Tataje, David Augusto, Keshiyu Nakatani, Rodrigo Fernandes, Angelo Antônio Agostinho, and Andréa Bialetzki. "Temporal distribution of ichthyoplankton in the Ivinhema River (Mato Grosso do Sul State/ Brazil): influence of environmental variables." Neotropical Ichthyology 9, no. 2 (2011): 427–36. http://dx.doi.org/10.1590/s1679-62252011005000017.

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Information on ichthyoplankton is an important tool in determining reproduction periods that - if associated to environmental variables - allows for inferences about the factors that regulate their intensity, beginning, and ending. In this context, this study aims to establish (i) ichthyoplankton composition; (ii) temporal variations in the overall density of eggs and larvae and among the most important taxa; and (iii) the influence of some abiotic and biotic variables on these organisms' abundance. Ichthyoplankton sampling was undertaken during the period between April 2005 and March 2006 at

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Zhang, Hui, Weiwei Xian, and Shude Liu. "Autumn ichthyoplankton assemblage in the Yangtze Estuary shaped by environmental factors." PeerJ 4 (April 19, 2016): e1922. http://dx.doi.org/10.7717/peerj.1922.

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This study investigated the response of the ichthyoplankton community to environmental changes in the Yangtze Estuary using canonical correspondence analysis. Ichthyoplankton community and environmental data were recorded during the autumns of 1998, 2000, 2002, 2003, 2004, 2007 and 2009. Among the ichthyoplankton, the dominant larval and juvenile families were the Engraulidae, Gobiidae and Salangidae, and the most common eggs were fromTrichiurus lepturus. The ichthyoplankton was identified via canonical correspondence analysis to three assemblages: an estuary assemblage dominated byChaeturicht

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Mukhametov, I. N., O. N. Mukhametova, and V. N. Chastikov. "The spring ichthyoplankton of pacific water off northern Kuril Islands." Trudy VNIRO 190 (December 28, 2022): 62–78. http://dx.doi.org/10.36038/2307-3497-2022-190-62-78.

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The aim of the work is assesment of the species composition and spatial distribution of spring ichthyoplankton in area off northern Kuril Islands.Material and methods. It is based on the data of ichthyoplankton sampling in 2011, 2015 and 2016 yrs, trawl surveys in 2011 and 2015, and hydrological surveys in 2015 and 2016 yrs. Maps of the fish distribution at various stages of ontogenesis were made. Cluster analysis was used to identify the structure of ichthyoplankton in the 2015 collections.Novelty. For the first time, data on ichthyoplankton collected by the SakhNIRO in the 2010s near the nor

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Dempsey, C. H. "Ichthyoplankton entrainment." Journal of Fish Biology 33, sa (1988): 93–102. http://dx.doi.org/10.1111/j.1095-8649.1988.tb05563.x.

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Basova, Marina, Svetlana Krasheninnikova, and Vincenzo Parrino. "Intra-Decadal (2012–2021) Dynamics of Spatial Ichthyoplankton Distribution in Sevastopol Bay (Black Sea) Affected by Hydrometeorological Factors." Animals 12, no. 23 (2022): 3317. http://dx.doi.org/10.3390/ani12233317.

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High mortality of fish in the early stages of ontogenesis requires the detection of factors affecting it and is an extremely important problem. For this reason, we tried to consider the influence of some hydrometeorological factors on the intra-decadal dynamics and spatial distribution of ichthyoplankton abundance in Sevastopol Bay. To this end, we analyzed ichthyoplankton samples collected in 2012–2021 in Sevastopol Bay, and the four districts were identified. The ichthyoplankton distribution by areas was associated with the peculiarities of the pollution distribution. The maximum numbers in

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Dos Santos, Elizângela Alves, Ana Carla Asfora El-Deir, and Jacqueline Santos Silva Cavalcanti. "Microplastics vs. ichthyoplankton: effects of this interaction in controlled and estuarine environments." STUDIES IN ENVIRONMENTAL AND ANIMAL SCIENCES 3, no. 1 (2022): 84–102. http://dx.doi.org/10.54020/seasv3n1-006.

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This literature review exploring the relationship between microplastics and ichthyoplankton was conducted in the main databases available online, considering the period from 2007 to 2021. Sixty articles were found reporting the presence of microplastics in estuarine environments (71.7%), and ingestion by ichthyoplankton in estuarine environments (16.6%) and under experimental conditions (11.7%). The most abundant microplastic found in natural environments was fiber (55%). Environments with densities between 17.5 and 4100 particles/m³ exhibited greater possibilities of ingestion of these partic

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Silva, Patrícia Alves da, David Augusto Reynalte-Tataje, and Evoy Zaniboni-Filho. "Identification of fish nursery areas in a free tributary of an impoundment region, upper Uruguay River, Brazil." Neotropical Ichthyology 10, no. 2 (2012): 425–38. http://dx.doi.org/10.1590/s1679-62252012005000012.

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This study aims to determine the importance of different environments of the Ligeiro River (upper Uruguay River, Brazil) in fish reproduction. For this purpose, three environments (sampling sites) were selected: rapids, a pool, and the mouth of the Ligeiro River. Ichthyoplankton, zooplankton, and benthos were sampled six times per month from September, 2006 to March, 2007. Zooplankton and ichthyoplankton samples were collected early in the evening with plankton nets (64 µm and 500 µm, respectively). Benthos samples were also collected early in the evening with a Van Veen dredge. Local abiotic

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Ma, Yihong, Chongliang Zhang, Ying Xue, Yupeng Ji, Yiping Ren, and Binduo Xu. "Effects of Sampling Design on Population Abundance Estimation of Ichthyoplankton in Coastal Waters." Fishes 10, no. 2 (2025): 39. https://doi.org/10.3390/fishes10020039.

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The abundance, spatial distribution of and dynamic changes in ichthyoplankton species affect the recruitment and fish population dynamics, which are fundamental for stock assessment and fisheries management. An evaluation of alternative sampling designs needs to be carried out to determine the optimal scheme that is cost-effective in collecting high-quality ichthyoplankton data. A simulation study was conducted to evaluate the performances and consistency of six potential sampling designs for an ichthyoplankton survey in the coastal waters of the central and southern Yellow Sea. Relative estim

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Jiang, Rijin, James Leonard Lusana, and Yongjiu Chen. "High-Throughput DNA Metabarcoding as an Approach for Ichthyoplankton Survey in Oujiang River Estuary, China." Diversity 14, no. 12 (2022): 1111. http://dx.doi.org/10.3390/d14121111.

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High-throughput DNA metabarcoding of mitochondrial 12S rRNA and Cyt b gene sequences was coupled with a morphology-based identification tool to assess ichthyoplankton community structure in Oujiang River Estuary, China. The performances of 12S and Cyt b barcoding markers were compared in terms of taxonomic resolution, detection and coverage, and their suitability was established for use as a quick and powerful ichthyoplankton assessment tool. A total of 30,138 ichthyoplankton (2462 eggs and 27,676 larvae) samples were collected from April to August 2015 and identified to 145 taxa belonging to

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Saushkina, D. Ya, and A. V. Vinogradskaya. "Some of test results of the “Aldofix” in fixing the phytoplankton on the example of eggs of walleye pollock Theragra chalcogramma." Researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean 1, no. 56 (2020): 120–26. http://dx.doi.org/10.15853/2072-8212.2020.56.120-126.

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Data about new conservant “Aldofix” to fix ichthyoplankton are demonstrated. Series of experiments on the conservation of ichthyoplankton and eggs of walleye pollock were carried out with the use of “Aldofix” and its modernized solutions. External view, including color of the eggs, as a result of fixing in different solutions was described, and difference in the egg diameter was noted in case of fixing in formalin and “Aldofix”. It is concluded, that “Aldofix” (example № 1) was the most convinient fixing solution to preserve ichthyoplankton.

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Zhang, Hui, Weiwei Xian, and Shude Liu. "Seasonal variations of the ichthyoplankton assemblage in the Yangtze Estuary and its relationship with environmental factors." PeerJ 7 (February 21, 2019): e6482. http://dx.doi.org/10.7717/peerj.6482.

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Seasonal variations of the ichthyoplankton assemblage and its relationship with the environment were analyzed based on four seasonal surveys during 2012. Historical data was collected to be compared with results from previous years in order to indicate the seasonal and inter-annual variation of the ichthyoplankton assemblage in the Yangtze Estuary and the adjacent waters. A total of 3,688 individuals belonging to 5 orders, 9 families, and 15 species were collected. No samples were collected in the winter cruise. In 2012, all samples were separated into four ecotypes, which is comparable with t

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Soares, Rômulo de Araújo, Júlio Cesar Martins Ribeiro Júnior, Paula Cilene Alves da Silveira, Raimunda Fortes Carvalho Neta та Audalio Rebelo Torres Junior. "La distribución del ictioplancton está directamente relacionada con la hidrodinámica de una región y el comportamiento de desove de los adultos. En este estudio buscamos mapear las zonas de mayor ocurrencia de ictioplancton observadas en la Bahía de São Marcos, que tiene una de las mayores amplitudes de marea en la Costa Amazónica, Brasil. El ictioplancton fue recolectado mediante una técnica de arrastre horizontal en la capa superficial, utilizando una red de rodillos cónicos con malla de 300 μm acoplada a un medidor de flujo, para estimar el volumen de agua filtrada en la Bahía de São Marcos (Complexo Estuarino de São Marcos - CESM, Maranhão) . La densidad se calculó a partir de la relación entre el número total de huevos y larvas en cada muestra y el volumen de agua filtrada. Las fuentes de Ictioplancton se consideraron continuas y se organizaron para representar de forma asincrónica las condiciones de distribución. Para ello se realizó utilizando el polígono de Voronoi para determinar la forma espacial del área de operación de todos los puntos de muestreo. El uso de CESM, como lugar de desove y cría de larvas de peces, se verificó en todas las épocas del año, con mayor densidad de huevos en la época de lluvias y mayor densidad de larvas durante la época seca. La ubicación de las mayores densidades de ictioplancton varió, con las concentraciones más altas más cerca del canal sureste del CESM en la estación seca, moviéndose hacia el centro en la estación lluviosa. El canal sureste del CESM era, por tanto, un área de cría de muchas especies de peces, lo que requería una acción prioritaria para la protección del medio ambiente." Research, Society and Development 9, № 10 (2020): e9229109238. http://dx.doi.org/10.33448/rsd-v9i10.9238.

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The occurrence of ichthyoplankton is associated to the hydrodynamics and spawning behavior of adults. In this study we aimed to detect regions of concentration of ichthyoplankton in São Marcos Bay, which has macro tidal amplitudes in Amazon Coast, Brazil. Ichthyoplankton was acquired by way of drag technique, using with 300 μm mesh. The density was obtained considering the number of eggs and larvae in filtered water. The sources of Ichthyoplankton were defined continuous and organized to denote the asynchronously the distribution conditions. To this was done using Voronoi polygon to determine

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Dagg, MJ, and JJ Govoni. "Is Ichthyoplankton Predation an Important Source of Copepod Mortality in Subtropical Coastal Waters?" Marine and Freshwater Research 47, no. 2 (1996): 137. http://dx.doi.org/10.1071/mf9960137.

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The significance of ichthyoplankton-induced mortality to copepods was examined at three localities in the northern Gulf of Mexico: in the winter at a site of an exceptionally high concentration of larval spot, Leiostomus xanthurus; in the winter at a highly productive region near the Mississippi River delta; and in the summer in a highly eutrophic estuary dominated by larval bay anchovy, Anchoa mitchilli. In each region, ichthyoplankton ingestion of copepod eggs, nauplii and copepodids was compared with production rates and stocks of the dominant copepod species in the same waters. In all case

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Lee, O., R. D. M. Nash, and B. S. Danilowicz. "Small-scale spatio-temporal variability in ichthyoplankton and zooplankton distribution in relation to a tidal-mixing front in the Irish Sea." ICES Journal of Marine Science 62, no. 6 (2005): 1021–36. http://dx.doi.org/10.1016/j.icesjms.2005.04.016.

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Abstract This study examines the spatio-temporal dynamics of fish larvae and their prey at a tidal-mixing front in the central Irish Sea. The distribution of ichthyoplankton and zooplankton was analysed in relation to environmental variables (depth, surface temperature, surface salinity, and water column stratification) using Redundancy Analysis (RDA). Significant interannual variability in the formation and position of the tidal-mixing front coincided with large differences in the species abundances of both ichthyoplankton and zooplankton. During the summer, ichthyoplankton and zooplankton co

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Qin, Qubin, Jian Shen, Troy Tuckey, Xun Cai, and Jilian Xiong. "Using Forward and Backward Particle Tracking Approaches to Analyze Impacts of a Water Intake on Ichthyoplankton Mortality in the Appomattox River." Journal of Marine Science and Engineering 10, no. 9 (2022): 1299. http://dx.doi.org/10.3390/jmse10091299.

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Municipal intakes of surface water have various uses, and their impacts on the aquatic environment and ecosystem, such as the impingement and entrainment of ichthyoplankton, are a major concern. A robust assessment of the intake impacts on ichthyoplankton in a system generally requires modeling efforts that can simulate the transport and dispersal pathways of the ichthyoplankton. However, it is challenging to simulate hydrodynamics with a high-resolution grid at the scale needed for intake screen sizes in a large system. In this study, a 3D unstructured grid model with a fine resolution grid (

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Podrezova, P. S., T. N. Klimova, A. A. Subbotin, I. V. Vdodovich, and A. V. Zavjyalov. "Regional variability of the Black Sea ichthyoplankton state during the change of the spring hydrological season to the summer." Известия Российской академии наук. Серия биологическая, no. 1 (May 24, 2024): 111–21. http://dx.doi.org/10.31857/s1026347024010118.

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The species diversity and spatial distribution of ichthyoplankton in the coastal and open waters of the northern part of the Black Sea and the southwestern part of the Sea of Azov in June 2020 are presented. The species diversity and abundance of ichthyoplankton changed in accordance with the regional conditions of warming of the sea upper layer during the formation of a vertical thermal structure of the summer type. The most favorable conditions for the survival of ichthyoplankton were observed in the open and coastal waters of the Western Sector of research in the initial phase of the summer

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Dembek, Małgorzata, Luiza Bielecka, Piotr Margoński, and Tycjan Wodzinowski. "Changes in the composition and abundance of ichthyoplankton along environmental gradients of the southern Baltic Sea." Oceanological and Hydrobiological Studies 48, no. 4 (2019): 328–36. http://dx.doi.org/10.2478/ohs-2019-0030.

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Abstract The research focuses mainly on the ichthyoplankton of the Baltic deeps – the inflow route from the North Sea. The ichthyoplankton was represented by eggs and larvae of nine fish species: sprat, cod, herring, European flounder, fourbeard rockling, longspined bullhead, straightnose pipefish, sand goby and great sandeel. The species composition of ichthyoplankton varied depending on the location of a given site – the number of taxa ranged from one to five. The Slupsk Furrow was the most diversified area in terms of the number of taxa, while the highest abundance of ichthyoplankton occurr

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Diouri, Lamia, Tarik Baibai, Najwa Hassou, et al. "Spatial and seasonal fluctuations of Ichthyoplankton assemblage in the Mediterranean coast of Morocco (Southwestern Alboran Sea)." Journal of Applied and Natural Science 15, no. 3 (2023): 890–99. http://dx.doi.org/10.31018/jans.v15i3.4508.

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Ichthyoplankton represent the first life stages of fish. The study of ichthyoplankton is crucial to understanding marine ecosystems and plays an important role in the management and durability of fisheries resources. During March and October of 2019, two oceanographic ichthyoplankton surveys were conducted in the Mediterranean Sea of Morocco from Tanger to Saadia by studying the horizontal structure of the ichthyoplankton species assemblage and its relation to environmental parameters. The average surface water temperature was (15.8°C in spring and 16.4°C in autumn). The fish eggs and larvae w

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Klimova, T. N., A. A. Subbotin, V. V. Melnikov, A. N. Serebrennikov, and P. S. Podrezova. "Spatial distribution of ichthyoplankton near the Crimean Peninsula in the summer spawning season 2013." Marine Biological Journal 4, no. 1 (2019): 63–80. http://dx.doi.org/10.21072/mbj.2019.04.1.06.

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Data obtained in five complex cruises of RV “Professor Vodyanitsky”, carried out from May to September 2013, in the summer spawning season, are analyzed. The dynamics of ichthyoplankton species diversity and spatial distribution depending on hydrological regime peculiarities in different regions of the shelf and open waters of the Black Sea off the Crimean Peninsula is presented. Totally 17 species of fish eggs and larvae from 13 families were identified in ichthyoplankton, maximum number of species was observed in June. Average eggs and larvae numbers during the spawning season were 50.5 and

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Sun, Pengfei, Jinrun Wang, Yongyu Tan, et al. "Assemblage Structure of Ichthyoplankton and Its Relationship with Environmental Factors in Late Summer-Autumn and Winter in the Beibu Gulf, China." Journal of Marine Science and Engineering 11, no. 9 (2023): 1810. http://dx.doi.org/10.3390/jmse11091810.

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Being a biologically diversed hotspot in the global marine ecosystem, the Beibu Gulf is inhabited by a high diversity of fish and serves as a vital fishing ground in China. Due to continuous overfishing, the fishery resource has drastically declined in the Beibu Gulf. However, information about the ichthyoplankton assemblages in this area is still lacking. In this present study, ichthyoplankton diversity, spatial and temporal distribution patterns, and assemblage structures were examined using the specimens collected in the late summer–autumn and winter of 2022 in the Beibu Gulf, and the relat

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Macedo-Soares, Luis C. P., Alesandra B. Birolo, and Andrea S. Freire. "Spatial and temporal distribution of fish eggs and larvae in a subtropical coastal lagoon, Santa Catarina State, Brazil." Neotropical Ichthyology 7, no. 2 (2009): 231–40. http://dx.doi.org/10.1590/s1679-62252009000200015.

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This study investigated the variation in abundance, distribution and composition of ichthyoplankton in a lagoon in southern Brazil through the year and at different stations within the lagoon. Ibiraquera Lagoon is a shallow coastal lagoon connected to the sea by a semi-permanent sandbar. Ichthyoplankton samples were collected monthly from December 2003 to December 2004, with a 200 µm mesh net using horizontal surface hauls. A colder, drier period was detected, contrasting with warm months during which salinity varied depending on rainfall and whether the sandbar was open or closed. The mean ab

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Stahl, Thomas P., and Roy A. Stein. "Influence of Larval Gizzard Shad (Dorosoma cepedianum) Density on Piscivory and Growth of Young-of-Year Saugeye (Stizostedion vitreum × S. canadense)." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 9 (1994): 1993–2002. http://dx.doi.org/10.1139/f94-202.

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Growth and survival of young-of-year saugeye (Stizostedion vitreum ♂ × S. canadense ♀) (stocked into Ohio reservoirs to create sport fisheries) are probably influenced by prey availability, variations in which may account for historically documented variability in stocking success. Because saugeye switch from a diet of zooplankton to fish once stocked, we sought to determine experimentally if saugeye size and available ichthyoplankton, i.e., larval gizzard shad (Dorosoma cepedianum), affected this switch and whether piscivory improved saugeye growth. In an enclosure experiment, saugeye (33.9 m

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Wagiyo, Karsono, Masayu Rahmia Anwar Putri, Muhammad Taufik, et al. "Ichthyoplankton composition and distribution in Kilwaru Waters, East Seram Regency, Maluku Province." BIO Web of Conferences 168 (2025): 04005. https://doi.org/10.1051/bioconf/202516804005.

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Ichthyoplankton play an important role in marine ecosystem dynamics and their relationship to conservation. This study aims to investigate the abundance and composition of ichthyoplankton in Kilwaru waters. Sampling was conducted in the morning at seven stations by towing at a boat speed of approximately two knots. Ichthyoplankton were collected using a bongo net with a mesh size of 500 µm and were carried out simultaneously with the measurement of hydrological parameters. The results found A total of 620 fish larvae from 24 families with abundances ranging from 45 to 2210 ind/103m3 with an av

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Petrova, T. N. "ICHTHYOPLANKTON OF COASTAL WATERS OF THE SOUTHEASTERN CRIMEA DURING THE SUMMER SPAWNING SEASON OF 2023." Водные биоресурсы и среда обитания 7, no. 2 (2024): 54–67. http://dx.doi.org/10.47921/2619-1024_2024_7_2_54.

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Background. The last systematic studies of ichthyoplankton in the coastal waters of Southeastern Crimea were carried out 30 years ago. However, despite the high importance of this aquatic area for fish reproduction, the current data on it remain extremely scarce. Relevance. Monitoring surveys of ichthyoplankton carried out by the Karadag Biological Station make it possible to analyze the current state of ichthyoplankton complexes and predict the success of recruitment to the natural fish populations. The aim of this article is to analyze the data obtained during monitoring studies of ichthyopl

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Govender, Ashrenee, Sean T. Fennessy, Sean N. Porter, and Johan C. Groeneveld. "Metabarcoding of ichthyoplankton communities associated with a highly dynamic shelf region of the southwest Indian Ocean." PLOS ONE 18, no. 4 (2023): e0284961. http://dx.doi.org/10.1371/journal.pone.0284961.

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Drifting fish eggs and larvae (ichthyoplankton) can be identified to species using DNA metabarcoding, thus allowing for post hoc community analyses at a high taxonomic resolution. We undertook a regional-scale study of ichthyoplankton distribution along the east coast of South Africa, focused on the contrasting environments of the tropical Delagoa and subtropical Natal Ecoregions, and on exposed and sheltered shelf areas. Zooplankton samples were collected with tow nets at discrete stations along cross-shelf transects (20–200 m depth) spaced along a latitudinal gradient that incorporates a kno

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Olivar, M. P. "Ichthyoplankton assemblages off northern Namibia." South African Journal of Marine Science 5, no. 1 (1987): 627–43. http://dx.doi.org/10.2989/025776187784522388.

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Arkhipov, A. G., and A. A. Mamedov. "Ichthyoplankton of Rockall-Hutton seamounts." Journal of Ichthyology 47, no. 7 (2007): 511–19. http://dx.doi.org/10.1134/s0032945207070053.

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Arkhipov, A. G., and A. A. Mamedov. "Ichthyoplankton of the Azores seamounts." Journal of Ichthyology 48, no. 3 (2008): 259–67. http://dx.doi.org/10.1134/s0032945208030089.

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Kataev, R. K., A. E. Minin, and A. D. Bykov. "Structure and features of the downstream migration of juvenile fish in the lower reaches of the Oka river." Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries), no. 3 (March 20, 2025): 156–71. https://doi.org/10.33920/sel-09-2503-01.

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Downstream migrations of early juvenile fish are typical for most species of ichthyofauna and are an adaptive mechanism of settlements. The purpose of this work was to study the features of the downstream migration of early juvenile fish of the lower reaches of the Oka River, to assess the quantitative indicators and species structure of migrants. The materials were obtained during the work carried out in the period from May to June in 2022–2024. Ichthyoplankton cone nets with a mouth area of 0.2–0.25 m2 were used as tools. Trapping was carried out at three deep levels and was timed to coincid

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Vieira, Thaila, Fabíola Silva, Zaqueu Santos, et al. "ICHTHYOPLANKTON COMMUNITY IN LAGOONS OF THE TAPAJÓS AND TROMBETAS RIVERS, EASTERN AMAZON." ACTA OF FISHERIES AND AQUATIC RESSOURCES 10, no. 2 (2022): 113–32. http://dx.doi.org/10.46732/actafish.2022.10.2.113-132.

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We evaluated the structure of the ichthyoplanktonic assemblage (taxonomic composition, abundance, developmental stages, and relationship with local environmental variables) in marginal lagoons located in the clearwater Tapajós and Trombetas rivers, Amazon Basin, Brazil during periods of high water (rising waters and flooding). Samples were collected by means of horizontal drags in the subsurface of the water with a plankton net (300 µm mesh). Sorting, counting, identification of biological material, and classification of embryonic and larval stages were performed under a stereoscopic microscop

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Monreal Gómez, María Adela, David Alberto Salas de León, Cesar Flores Coto, Fernando Flores Hernández, David Salas Monreal, and Mayra Lorena Riverón Enzástiga. "Tidal effects on ichthyoplankton aggregation and dispersion in the Southern Gulf of Mexico." Brazilian Journal of Oceanography 61, no. 4 (2013): 231–41. http://dx.doi.org/10.1590/s1679-87592013000400004.

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The role of vertical barotropic and baroclinic tidal forcing in the aggregation and dispersion of ichthyoplankton in the Southern Gulf of Mexico was analyzed in this study. Samplings of ichthyoplankton and the determination of hydrographic parameters were performed during September 1992 at a single point of 180 m depth, near the shelf break (19º32'N - 92º38.5'W). A 24 h CTD yo-yoing casting and biological samples were taken every 2 h and these measurements were combined with water velocity and density simulations from the Regional Ocean Model System (ROMS). One thermocline and two haloclines w

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Ávila-Simas, Sunshine de, David Augusto Reynalte-Tataje, and Evoy Zaniboni-Filho. "Pools and rapids as spawning and nursery areas for fish in a river stretch without floodplains." Neotropical Ichthyology 12, no. 3 (2014): 611–22. http://dx.doi.org/10.1590/1982-0224-20130116.

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This study aimed to evaluate the importance of two environments situated in the main channel of the Peixe River (a tributary of the upper Uruguay River) on fish reproduction and initial growth. Ichthyoplankton, macrozooplankton, and zoobenthos collections were taken on a monthly basis from October 2011 to March 2012, sampling a rapids and a pool environment. The instrument used for the capture of the ichthyoplankton in both environments was a light trap. In total, 795 eggs and 274 larvae were captured. The species that presented higher abundance and occurrence frequency out of the total captur

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Landaeta, Mauricio F., Javier Vera-Duarte, María José Ochoa-Muñoz, Claudia A. Bustos, and Fernando Balbontín. "Feeding ecology of fish larvae from Chilean Patagonia during austral winter." Revista de Biología Marina y Oceanografía 54, no. 2 (2019): 221. http://dx.doi.org/10.22370/rbmo.2019.54.2.1906.

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Feeding habits of the ichthyoplankton from Chilean Patagonia (44-46°30’S) were studied during June-July 2012 (austral winter). Ichthyoplankton assemblage was composed by 10 species, with low abundance (3.8 to 16.73 ind. 1000 m-3). Most abundant larvae were Maurolicus parvipinnis, Leptonotus blainvilleanus and Sprattus fuegensis. These three species fed mainly on calanoid copepodites, Paracalanus indicus and Calanus sp. copepodites, and cyphonautes. Trophic overlap among dominant fish larvae was high (Schoener’s D > 0.69) and no significant differences were detected in prey composition and s

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Karaseva, E. M., A. G. Arkhipov, and E. E. Ezhova. "Ichthyoplankton of the South-Eastern Baltic Sea in the summer season: modern changes in the distribution and abundance of eggs and larvae of mass species." Trudy VNIRO 181 (2020): 165–77. http://dx.doi.org/10.36038/2307-3497-2020-181-165-177.

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The aim of ichthyoplankton studies in July 2019 was to monitor the distribution and estimate the abundance of: 1) eggs and larvae of mass pelagophilous fish species (cod, sprat) in deep-water areas; 2) larvae of small-sized benthic fish species inhabiting the shallow coastal zone of the South-Eastern Baltic Sea (the exclusive economic zone of the Russian Federation). It was noted, the main concentrations of cod and sprat eggs were in the northern part of the area (southern slope of Gotland Deep). Aggregations with a noticeably lower abundance of eggs were observed in the Gdansk basin. In July

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Suzuki, Fábio Mineo, Lucas Vilela Pires, and Paulo Santos Pompeu. "Passage of fish larvae and eggs through the Funil, Itutinga and Camargos Reservoirs on the upper Rio Grande (Minas Gerais, Brazil)." Neotropical Ichthyology 9, no. 3 (2011): 617–22. http://dx.doi.org/10.1590/s1679-62252011000300014.

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The objective of this study was to evaluate the passage of fish eggs and larvae through the Funil, Itutinga and Camargos Reservoirs, located in the upper Rio Grande basin, Minas Gerais, Brazil. Samples were taken downstream and upstream of the dams using a conical ichthyoplankton net and were collected every two weeks, twice per sampling day, between November 2008 and March 2009. Although eggs and larvae were abundant immediately upstream of the reservoirs, no ichthyoplankton were captured immediately downstream of the dams, possibly indicating that eggs and larvae do not pass through the rese

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Gao, Minghui, Zhiqiang Wu, Xichang Tan, Liangliang Huang, Jie Feng, and Saeed Rad. "Ontogenetic Structure and Temporal Patterns of Summer Ichthyoplankton in Upper Course of the Xijiang River, SW China." Water 13, no. 5 (2021): 703. http://dx.doi.org/10.3390/w13050703.

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The summer ichthyoplankton characteristics in the Laibin section of the Xijiang River were analyzed based on a survey during summer 2017. The ontogenetic structure and temporal patterns of ichthyoplankton and the correlation between environmental parameters and the temporal patterns were investigated. A total of 10,665 eggs and 447 larval belonging to four orders, ten families, and 28 species were collected. According to the flood regime, summer is divided into three periods (pre-flood, flood period, and post-flood). Ichthyoplankton proved to be heterogeneous between periods in summer with dif

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Hromova, Yu F., and I. I. Abram'yuk. "Zoo- and Ichthyoplankton in the Communities of Aquatic Plants and in the Adjacent Sections of the Littoral Zone of Various Water Bodies in the Lower Reaches of the Desna River." Hydrobiological Journal 59, no. 2 (2023): 18–38. http://dx.doi.org/10.1615/hydrobj.v59.i2.20.

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Zoo- and ichthyoplankton in the littoral zone of various water bodies of the lower reaches of the Desna River occurring in the communities of aquatic plants essentially differed from those registered in the adjacent sections free of vegetation. The complicated structure of the environment formed by aquatic plants was responsible for higher taxonomic richness, numbers, and biomass of zooplankton communities compared to the shallow water zone free of vegetation. It should be noted that this phenomenon was observed in early summer as well during the period of ichthyoplankton mass development, whi

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Carvalho, Daniel Cardoso. "Ichthyoplankton DNA metabarcoding: Challenges and perspectives." Molecular Ecology 31, no. 6 (2022): 1612–14. http://dx.doi.org/10.1111/mec.16387.

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Felley, Susan M., Michael Vecchione, and Sandra G. F. Hare. "Incidence of Ectoparasitic Copepods on Ichthyoplankton." Copeia 1987, no. 3 (1987): 778. http://dx.doi.org/10.2307/1445673.

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Maggia, M. E., Y. Vigouroux, J. F. Renno, et al. "DNA Metabarcoding of Amazonian Ichthyoplankton Swarms." PLOS ONE 12, no. 1 (2017): e0170009. http://dx.doi.org/10.1371/journal.pone.0170009.

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Karamushko, O. V., and L. I. Karamushko. "Ichthyoplankton in the Southwestern Kara Sea." Journal of Ichthyology 63, no. 4 (2023): 627–35. http://dx.doi.org/10.1134/s0032945223040082.

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Karamushko, O. V., and L. I. Karamushko. "Ichthyoplankton in the Southwestern Kara Sea." Вопросы ихтиологии 63, no. 4 (2023): 377–85. http://dx.doi.org/10.31857/s0042875223040124.

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Based on the expedition and literature data, the ichthyoplankton in the southwestern part of the Kara Sea is described. Larvae and pelagic fry of 22 fish species belonging to 19 genera, 10 families, and five orders were found in the study area from 1921 to 2019. Maps of the distribution of the most numerous species in 1981 and 2012–2015 are presented, as well as the data on the distribution density of species per unit volume and area in 2012–2015. It is established that over the past 38 years, the species composition of ichthyoplankton has not been replenished with any species and, first of al

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Kallianiotis, Athanasios A., and Nikolaos Kamidis. "Seasonal Shifts: Tracking Fish Larval Diversity in a Coastal Marine Protected Area." Journal of Marine Science and Engineering 12, no. 8 (2024): 1300. http://dx.doi.org/10.3390/jmse12081300.

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This research explored the influence of seasonal and environmental variables on the variation and density of ichthyoplankton in the Thermaikos Gulf and the adjacent marine protected area of the Litochoro artificial reef in Pieria, northern Greece. The objective was to assess the condition of existing ichthyoplankton communities, understand their relationship with seasonal environmental parameters, and ascertain whether the area plays the role of a fish nursery site. Observations were carried out on the boundary of the marine protected area near Litochoro, with collection sessions occurring dur

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Eko Dwi Haryono, Florencius, Rose Dewi, Taufik Budhi Pramono, Rifki Ahda Sumantri, Tri Nur Cahyo, and Dewi Wisudyanti. "Interaction of oceanography patterns towards the abundance of phytoplankton, zooplankton and ichthyoplankton in teluk penyu waters of Cilacap." E3S Web of Conferences 47 (2018): 05002. http://dx.doi.org/10.1051/e3sconf/20184705002.

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Coastal waters of Teluk Penyu-Cilacap district is an enlarging area for many species of fish larvae. The waters is directly influenced by the physical, chemical and biological of Indian Ocean patterns. Fish communities inhabit in gulf waters to take advantage of the high productivity in the coastal waters to support their livelihoods. The gulf area is usually associate with other productive ecosystems i.e. rivers that empties into it and mangrove forests. The study aim is to analyze the influence of oceanography pattern to the existence of ichthyoplankton [fish larvae] inhabit at Teluk Penyu w

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Stepien, Carol A., Haila K. Schultz, Sean M. McAllister, Emily L. Norton, and Julie E. Keister. "Evaluating Metabarcoding Markers for Identifying Zooplankton and Ichthyoplankton Communities to Species in the Salish Sea: Morphological Comparisons and Rare, Threatened or Invasive Species." DNA 4, no. 1 (2023): 1–33. http://dx.doi.org/10.3390/dna4010001.

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Zooplankton and ichthyoplankton community assessments depend on species diagnostics, yet morphological identifications are time-consuming, require taxonomic expertise, and are hampered by a lack of diagnostic characters, particularly for larval stages. Metabarcoding can identify multiple species in communities from short DNA sequences in comparison to reference databases. To evaluate species resolution across phylogenetic groups and food webs of zooplankton and ichthyoplankton, we compare five metabarcode mitochondrial (mt)DNA markers from gene regions of (a) cytochrome c oxidase subunit I, (b

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Fedorets, Yulia, Olesya Elovskaya, Aleksandra Istomina, et al. "State of marine biota in the water area of the Muchke Bay’s Coal Terminal of the Tatar Strait." E3S Web of Conferences 390 (2023): 07037. http://dx.doi.org/10.1051/e3sconf/202339007037.

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An analysis of the species composition of phytoplankton and ichthyoplankton was carried out for the first time in the port water area of the Muchke Bay (Tatar Strait) in autumn. The species composition, distribution features and structure of macrozoobenthos were considered. Phytoplankton density is evenly distributed in the study area. The density of diatoms reached 97 % of the total phytoplankton density, and the biomass was 99 %. The microalgae Sceletonema costatum (Greville) Cleve, 1873 and Cylindrotheca closterium (Ehrenberg) Reimann & J.C.Lewin, 1964, species that live in polluted wat

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Buslov, A. V., E. E. Ovsiannikov, and A. V. Smirnov. "Assessment of spawning stock for walleye pollock <i>Gadus chalcogrammus</i> Pallas, 1814 in the northern Okhotsk Sea by ichthyoplankton method taking into account the eggs mortality." Izvestiya TINRO 203, no. 4 (2023): 881–91. http://dx.doi.org/10.26428/1606-9919-2023-203-881-891.

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A new approach for assessment of the spawning stock of walleye pollock in the northern Okhotsk Sea on the data of ichthyoplankton surveys is proposed. To estimate the actual number of spawned eggs, average age of eggs at each stage of development was determined and the eggs mortality was estimated in dependence on age. For the spring ichthyoplankton surveys in 2019–2023, the eggs mortality was evaluated as 27 % for stage I, 57 % for the stage II, 74 % for the stage III, and 86 % for the stage IV – these portions of the spawned eggs were not caught and counted. So, the number of counted eggs wa

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Sánchez-Caballero, Carlos Adrián, José Manuel Borges-Souza, Ricardo Javier Saldierna-Martínez, and Avigdor Abelson. "Assessing the Conservation Value of Artificial and Natural Reefs via Ichthyoplankton Spatio-Temporal Dynamics." Fishes 9, no. 5 (2024): 166. http://dx.doi.org/10.3390/fishes9050166.

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The distribution of fish eggs and larvae (ichthyoplankton) reflects spawning and nursery areas as well as dispersal routes. This study’s goal is to demonstrate how the identification of ichthyoplankton species and stages and their spatial distribution among natural reefs (NRs) and artificial reefs (ARs) may serve as decision-making tools in conservation and fishery management. Natural reefs exhibited an eight-times higher abundance of eggs, as well as the highest abundance of larvae in the yolk-sac and preflexion phases. In contrast, ARs had the highest abundance of larvae in the flexion and p

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Castillo, Gonzalo, Hernann Muñoz, Humberto González, and Patricio Bernal. "DAILY ANALYSIS OF ABUNDANCE AND SIZE VARIABILITY OF FISH LARVAE IN RELATION TO OCEANIC WATER INTRUSIONS IN COASTAL AREAS*." Biologia Pesquera, no. 20 (January 25, 2024): 21–35. http://dx.doi.org/10.21703/0067-8767.1991.20.2550.

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The daily variability of the summer ichthyoplankton assemblage in the Gulf oí Arauco (37°05'S, 73°20'W) was studied to characterize its composition, relative abundance, size distribution of larvae, and its response to environmental conditions. Three well defined environmental changes were observed during the 11 day study period: (1) sinking of isotherms and temperature increase of the surface layer, (2) a sharp decrease in chlorophyll concentration. Both (1) and (2) occurred on the 6th day of sampling, and (3) a storm on the 8th day. The first two events were due to onshore flow of oceanic wat

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