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Tesi sul tema "Artificial fish habitats"

Autore: Grafiati

Pubblicato: 14 dicembre 2024

Ultima modifica: 31 luglio 2025

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1

Patranella, Allison. "Artificial Reefs as Juvenile Fish Habitats in Marinas." NSUWorks, 2016. http://nsuworks.nova.edu/occ_stuetd/423.

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Coastal infrastructure has replaced many vital fish nursery habitats with structures designed without fully mitigating for the loss of the natural ecosystems. This thesis details research focused on the use of small, inexpensive, artificial reef modules as replacement juvenile fish habitat within marinas. My research hypothesis was that the placement of small, structurally complex artificial reef modules would increase fish abundance and species richness relative to unmodified marina seawalls. Non-destructive visual surveys of fishes were completed monthly for 14 months for 12 artificial reef

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2

Brickhill, Michael John. "Enhancement of Fish Stock by Habitat Manipulation in Artificial Waterways." Thesis, Griffith University, 2009. http://hdl.handle.net/10072/367810.

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Abstract (sommario):

Two widely-recognised hypotheses propose that increases in fish abundance at artificial reefs are caused by: (a) the attraction and redistribution of existing individuals; and/or (b) the addition of new individuals by production. Inadequate experimental designs compromised by a lack of sufficient replication and/or spatial interspersion of reefs with controls have prevented researchers from distinguishing between attraction and production. Infrequent sampling has also led to insufficient temporal coverage of life history-driven variations in fish abundance and biomass at reefs. Detection an

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3

Bouchoucha, Marc. "Les zones portuaires peuvent-elles servir de nourriceries alternatives pour les poissons marins côtiers ? : cas des sars en Méditerranée Nord-occidentale." Thesis, Perpignan, 2017. http://www.theses.fr/2017PERP0046/document.

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Au cours de leur cycle de vie, la plupart des espèces de poissons marins côtiers passent par des nourriceries littorales dont la qualité influence largement le succès du recrutement et donc le maintien de l’abondance de leurs populations. Or, la construction de ports entrain irrémédiablement une perte de fonction pour les habitats côtiers impactés. Dans ce contexte,l’objectif général de cette thèse était de voir si les zones portuaires peuvent malgré tout servir de nourriceries alternatives pour les poissons marins côtiers. Pour cela, les abondances des juvéniles de quatre espèces de sars, du

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4

Varenne, Alix. "Étude de la diversité des nurseries artificielles dans les zones portuaires et de leur connectivité trophique avec les écosystèmes adjacents." Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ5044.

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Le développement côtier introduit des habitats artificiels qui impactent la biodiversité et le fonctionnement des écosystèmes. Les solutions d'ingénierie écologique, comme les habitats artificiels à poissons (HAP), peuvent réhabiliter des zones très modifiées, comme les ports, en offrant un abri aux poissons. Les HAP peuvent aussi fournir un substrat aux invertébrés et aux macroalgues, améliorant le fonctionnement de l'écosystème. Leurs effets pourraient aller au-delà des ports et modifier les échanges trophiques avec les habitats adjacents. Cette thèse étudie la biodiversité des invertébrés a

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5

Lopez-Marcano, Sebastian E. "Measuring cross-habitat movements among habitat hotspots of fish with artificial intelligence." Thesis, Griffith University, 2022. http://hdl.handle.net/10072/414922.

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Connectivity, defined as the movement of individuals among populations or habitats, is a crucial ecological process that underpins the function of ecosystems. Animal movements promote a wide array of ecological outcomes, from genetic diversity to ecosystem recovery after disturbance. Therefore, it is necessary to have a clear understanding of the capabilities, scale, frequency, and locations of animal movements. In aquatic ecosystems, obtaining and analysing movement data is challenging because constantly changing environmental conditions hamper the use of traditional frameworks and methods. T

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6

Lee, Hing-kong Edwin. "Methods to assess fisheries enhancement by the deployment of artificial reefs (a case study at Hoi Ha Wan, Hong Kong) /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22264048.

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7

Mueller, Robert F. Jr. "Fish assemblages in the Wabash River : responses to substrate variation in field collections and artifical streams." Virtual Press, 2008. http://liblink.bsu.edu/uhtbin/catkey/1391677.

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Relationships between fish assemblage composition and substrate variation is poorly understood in large rivers. Information on fishes occurrence and behavior and substrate variation were examined in field observations for the Middle Wabash River and fine scale artificial streams experiments. The results from field observations suggested strong concordance for variation in abundance of fishes with habitat variation among sites, resulting in a longitudinal river gradient as dominant in the Middle Wabash River. In addition, shifts in fish behavior within artificial stream experiments demonstrated

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8

Armono, Haryo Dwito. "Flow field around single and multiple hollow hemispherical artificial reefs used for fish habitat." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0030/MQ47434.pdf.

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9

Porter, Augustine Gus. "Habitat structural complexity in the 21st century: measurement, fish responses and why it matters." Thesis, The University of Sydney, 2019. http://hdl.handle.net/2123/20457.

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Abstract (sommario):

The physical shape or structure of a habitat is a key driver of species’ distributions and central to maintaining diversity through ecological niche differentiation. Anthropogenic influences are changing the structure of habitats and the assemblages of associated organisms globally. Understanding the links between the physical shape of habitats and the organisms they support will be essential to predicting and mitigating anthropogenic impacts. In marine ecosystems climate change, bottom trawling and marine infrastructure drive changes to the structure of habitats. While many of the observed an

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10

梁懷彥 and Wai-yin Albert Leung. "Temporal trends in fish abundance and species composition on an open access artificial reef in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31244439.

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11

Andersson, Mathias H. "Offshore wind farms - ecological effects of noise and habitat alteration on fish." Doctoral thesis, Stockholms universitet, Zoologiska institutionen, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-54049.

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There are large gaps in our understanding how fish populations are affected by the anthropogenic noise and the alteration of habitat caused by the construction and operation of offshore wind farms. These issues are of great importance as the construction of offshore wind farms will increase all over the world in the near future. This thesis studies these effects with a focus on fish. The wind turbine foundations function as artificial reefs and are colonized by invertebrates, algae and fish. The epibenthic assemblages are influenced by factors such as hydrographical parameters, time of submerg

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12

李慶剛 and Hing-kong Edwin Lee. "Methods to assess fisheries enhancement by the deployment of artificial reefs (a case study at Hoi Ha Wan, Hong Kong)." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31254639.

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13

Langhamer, Olivia. "Wave energy conversion and the marine environment : Colonization patterns and habitat dynamics." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-107193.

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A wave energy park has been established on the Swedish west coast outside Lysekil and pioneer work about its interactions with the marine environment has been conducted. So far, little is known about the effects of offshore energy installations on the marine environment, and this thesis assists in minimizing environmental risks as well as in enhancing potential positive effects on the marine environment. The Lysekil research site is situated about two kilometres offshore and has been under development since 2005. During this time 26 “environmental devices”, without generators, consisting of a

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14

Olaya, Marín Esther Julia. "Ecological models at fish community and species level to support effective river restoration." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/28853.

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RESUMEN Los peces nativos son indicadores de la salud de los ecosistemas acuáticos, y se han convertido en un elemento de calidad clave para evaluar el estado ecológico de los ríos. La comprensión de los factores que afectan a las especies nativas de peces es importante para la gestión y conservación de los ecosistemas acuáticos. El objetivo general de esta tesis es analizar las relaciones entre variables biológicas y de hábitat (incluyendo la conectividad) a través de una variedad de escalas espaciales en los ríos Mediterráneos, con el desarrollo de herramientas de modelación par

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15

QUARTARARO, MARCO. "Modelli di previsione dei popolamenti ittici nei fiumi: sviluppo e ottimizzazione mediante reti neurali artificiali." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1273.

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Negli ultimi venti anni l’uso di metodi basati sull’intelligenza artificiale per la costruzione di modelli in ecologia si è diffuso e sviluppato grazie alla capacità di questi metodi di dar luogo, in base ad opportuni algoritmi di apprendimento e alle informazioni contenute nei dati (quindi empiricamente), a rappresentazioni dei sistemi ecologici che spesso sono più efficaci rispetto a quelle fornite dai metodi tradizionali (basati su indici o sulla statistica multivariata). Lo scopo principale di questo lavoro è stato un esame sperimentale di cinque ipotesi circa altrettante potenziali strate

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16

Jordan, Lance K. B. "Multi-Experimental Examination of Haemulon Species (Haemulidae) Early-Life Ecology on Southeast Mainland Florida Coral Reefs." NSUWorks, 2010. http://nsuworks.nova.edu/occ_stuetd/83.

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Grunts (Haemulidae: Percoidei) represent one of the most abundant and speciose families on western North Atlantic coral reefs including 15 diverse species from the genus Haemulon. For this dissertation focusing on Haemulon, three studies were conducted to examine 1) spatio-temporal distributions of early-life stage (newly settled and early juvenile) individuals throughout the southeast mainland Florida reefscape, 2) species-specific, depth-variable distributional patterns of newly settled individuals and the potential influence of predation on the observed patterns, and 3) the effects of buryi

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17

Ribeiro, Cláudia Correia da Silva 1974. "Comparison of rocky reef fish communities among protected, unprotected and artificial habitats in Madeira island coastal waters using underwater visual techniques." Doctoral thesis, 2008. http://hdl.handle.net/10451/1541.

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Tese de doutoramento em Biologia (Biologia Marinha e Aquacultura), apresentada à Universidade de Lisboa através da Faculdade de Ciências, 2008<br>This study concentrates on fish species associated to rocky inshore reefs of thesouth coast of Madeira Island in order to obtain base-line data on the structure of thefish assemblages inhabiting the very limited shallow coastal habitats surroundingMadeira Island. The faunistic features of the local fish communities were defined interms of species richness and composition; abundance; trophic, spatial and demographicstructure; and seasonal changes rela

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18

Huan-HsuanChang and 張桓旋. "Using Fish Autecology Matrix &; Artificial Neural Networks to Simulate Instream Fish Habitat Conditions." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/04496855971947653433.

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碩士<br>國立成功大學<br>水利及海洋工程學系<br>102<br>Recently, more and more people realize the importance of Ecology. For river restoration, ecological engineering projects that providing more suitable habitats for fish community are being designed. To sustain fish population and maintain biodiversity, understanding the relationship between fish community and physical habitat of rivers plays an important role. This study proposes a simplified method to estimate the mesohabitat composition that would favor members of a given set of fish species. Sampling data were collected form HouKu River and WuGouShui River

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19

Bulger, Desirée. "Evaluating British Columbia’s artificial reefs in a conservation context." Thesis, 2019. http://hdl.handle.net/1828/10823.

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Abstract (sommario):

Synthetic marine habitats such as artificial reefs (ARs) are deployed to offset marine habitat losses and aid conservation of marine communities, including species at risk. Though environmental benefit is often assumed, AR’s ability to support northern temperate marine fish communities has rarely been tested. The structural orientation and location of a reef can strongly influence biodiversity and productivity of faunal communities inhabiting it. For ARs, understanding how reef characteristics affect species and community composition are key in optimizing their use in conservation initiatives.

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20

Sargent, Philip S. "The effects of increasing habitat complexity with artificial reefs on demersal fish density in coastal Newfoundland Waters /." 2002.

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21

Oliveira, Miguel Tiago Cantiga Lopes de. "The role of artificial reefs to promote biodiversity and sustainability of the ecotourism in Cape Verde: ecological, biological and management aspects." Doctoral thesis, 2016. http://hdl.handle.net/10400.1/8996.

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Tese de doutoramento, Ciências do Mar, da Terra e do Ambiente, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2016<br>This multidisciplinary study aimed to assess the impact of artificial reefs (ARs) deployment off Santa Maria (Sal Island), to promote biodiversity and sustainability of the ecotourism in Cape Verde.

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22

QUAGLIETTA, LORENZO. "Ecologia e comportamento della lontra eurasiatica (Lutra lutra) in un'area mediterranea (Alentejo, Portugal)." Doctoral thesis, 2012. http://hdl.handle.net/11573/918729.

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Despite being a highly studied carnivore, the Eurasian otter (Lutra lutra) still offers the opportunity to explore many aspects of its ecology and behaviour that are poorly known or have only been investigated in temperate areas. From April 2007 to October 2010, the OPA research project (Otter Project in Alentejo) was conducted in the south-central Alentejo region of Portugal, in an area of roughly 800 km2. Through the capture and subsequent radio-tracking of 16 wild Lutra lutra individuals (9 males and 7 females) for an average of 139 radio-locations per animal (about 126 days), together wit

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