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Dissertations / Theses on the topic 'Sparidae'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Garratt, Patrick Ashworth. "Comparative aspects of the reproductive biology of seabreams (Pisces: Sparidae)." Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1005088.

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Sexuality in seabreams (Sparidae) is considered to be more complex than in any other family of fishes. Early work indicated five reproductive styles within the family: protandry, protogyny, simultaneous hermaphroditism, rudimentary hermaphroditism and gonochorism. More recently two reproductive styles have been suggested: sex change (protandry and protogyny) and secondary gonochorism (rudimentary hermaphrodites). The need for detailed descriptions of sex differentiation, gonad development and spawning behaviour in this family has been identified by a number of workers in this field. The aims o

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2

Wakefield, Corey Brion. "Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia." Thesis, Wakefield, Corey Brion (2006) Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia. PhD thesis, Murdoch University, 2006. https://researchrepository.murdoch.edu.au/id/eprint/382/.

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This study focused on obtaining sound quantitative data on the reproductive biology, length and age compositions and growth of the snapper Pagrus auratus in the waters off Carnarvon at ca 25oS and Perth at ca 32oS on the west coast of Australia and at ca 34oS on the south coast of Western Australia. Sampling thus encompassed both sub-tropical and temperate waters and the geographical range within which this species is abundant in Western Australia. The resultant data were used to explore the ways in which the biological characteristics of P. auratus differ with latitude and thus water temperat

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3

Wakefield, Corey Brion. "Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia." Wakefield, Corey Brion (2006) Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia. PhD thesis, Murdoch University, 2006. http://researchrepository.murdoch.edu.au/382/.

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This study focused on obtaining sound quantitative data on the reproductive biology, length and age compositions and growth of the snapper Pagrus auratus in the waters off Carnarvon at ca 25oS and Perth at ca 32oS on the west coast of Australia and at ca 34oS on the south coast of Western Australia. Sampling thus encompassed both sub-tropical and temperate waters and the geographical range within which this species is abundant in Western Australia. The resultant data were used to explore the ways in which the biological characteristics of P. auratus differ with latitude and thus water temperat

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4

Davis, Jerome Adam. "Investigations into the larval rearing of two South African sparid species." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1005138.

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The most significant bottleneck to the development of marine finfish culture is a reliable production of juveniles for growout. This is due to the small size at hatch and delicate nature of the pelagic larvae produced by most commercially desirable species. However, over the last 30 years, improved larviculture techniques have been developed to the extent that many species are being successfully cultured worldwide. These techniques were applied to two endemic species as a preliminary step towards establishing marine finfish aquaculture in South Africa. Adult roman Chtysoblephus laticeps and ca

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5

Mann, Bruce Quintin. "Aspects of the biology of two inshore sparid fishes (Diplodus sargus capensis and Diplodus cervinus hottentotus) off the south-east coast of South Africa." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1005065.

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The blacktail, Diplodus sargus capensis and the zebra, Diplodus cervinus hottentotus, sparid fishes endemic to South Africa, are important components of the recreational shore-fishery. To provide a basis for the management of these fish, aspects of the biology of both species were investigated in the Tsitsikamma National Park (TNP). In particular, the role of the TNP was evaluated as a management option for the conservation of both species. Examination of stomach contents showed that juveniles of both species fed predominantly on amphipods, polychaetes and harpacticoid copepods. Adult !h. sarg

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6

Orrell, Thomas M. "A molecular phylogeny of the Sparidae (Perciformes: Percoidei)." W&M ScholarWorks, 2000. http://web.vims.edu/library/Theses/Orrell2000.pdf.

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7

González, González Patricia. "Parasitofauna branquial de Dentex dentex (Linneo, 1758) (Pisces: Sparidae)." Doctoral thesis, Universitat de València, 2005. http://hdl.handle.net/10803/10345.

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Se ha llevado a cabo un estudio sobre el parasitismo branquial de 91 dentones (Dentex dentex, Pisces, Sparidae). Dicha muestra se compuso de 61 dentones salvajes capturados mediante palangre procedentes de aguas de Mallorca y canal de Menorca, y 30 dentones cautivos procedentes de una jaula situada en el puerto de Mallorca. Se encontraron un total de ocho especies parásitas, un dinoflagélido (Amyllodinium ocellatum), un monogénido (Microcotyle erythrini), un udonélido (Udonella caligorum), un trematodo digenea (Stephanostomum sp. metacercariae), tres copépodos (Caligus productus, Caligus diap

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8

Oosthuizen, Carel Jakobus. "Genetic variation within Cape stumpnose, Rhabdosargus holubi Steindachner (Teleostei: Sparidae)." Pretoria : [s.n.], 2007. http://upetd.up.ac.za/thesis/available/etd-07092008-135620.

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9

Day, Julia Jane. "Comparative morphology and evolutionary relationships of the Sparidae (Teleostei: Percoidei)." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326234.

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10

Oosthuizen, Carel Jakobus. "Genetic variation within Cape stumpnose, Rhabdosargus holubi Steindachner (Teleostei: Sparidae)." Diss., University of Pretoria, 2006. http://hdl.handle.net/2263/26156.

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Due to the nature of the marine environment genetic studies allow insight into behaviour and natural history that is difficult or impossible to identify by direct field observation. Current as well as historical population demography and gene flow can be detected by using molecular techniques. Genetic studies on only a few commercially important marine species along the South African coast have been conducted, although many marine fish species utilize estuaries as nursery areas and little attention has been afforded to studying larval distribution and recruitment of these species from a molecu

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11

Isemonger, Devin Neil. "Modelling the spatial and genetic response of the endemic sparid: Polysteganus praeorbitalis (Pisces: Sparidae) to climate change in the Agulhas Current system." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/54509.

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The Scotsman Seabream, Polysteganus praeorbitalis, is one of several large, slow-growing members of the Sparidae family of fishes endemic to the Agulhas Current system in the Western Indian Ocean (WIO). Relatively little research has been conducted on this species despite its importance to both recreational and commercial line fisheries in South Africa and the drastic decline in catch per unit effort (CPUE) that has been recorded since the 1940s. Changing sea temperatures as a result of global climate change are further expected to affect the distribution and abundance of many fish species bas

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12

Lang, Judy Brenda. "The growth characteristics of sparid otoliths." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1005129.

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The periodicity of formation of growth increments in the otoliths of South African sparids was validated by the oxytetracycline labelling technique. Intramuscular injections of oxytetracycline at a dosage of 250mg/kg marked the otoliths of laboratory held juvenile sparids, while a dosage range of 50 - 100mg/kg oxytetracycline, injected intramuscularly, marked adult sparids in the field. Laboratory held, larval sparid otoliths were marked by immersion for 24hrs a solution of 100-150mg/l alizarin complexone. Both daily (microstructural) and annual (macrostructural) growth increments were identif

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13

Revault, Judith. "La spécificité parasitaire des monogènes pour leur(s) hôte(s) sparidés (téléostéens, perciformes) : approches expérimentales et fonctionnelles à l'échelle de l'holobionte." Electronic Thesis or Diss., Sorbonne université, 2024. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2024SORUS056.pdf.

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Alors que les poissons téléostéens représentent les deux tiers des vertébrés marins, l'interaction entre leur microbiote externe et leur environnement reste peu étudié, en particulier chez les populations sauvages. Ainsi, le lien entre le microbiote et les ectoparasites n'est pas bien compris. Le microbiote peut agir comme une barrière protectrice contre les pathogènes et/ou être impliqué dans la reconnaissance de l'hôte par les parasites. Les associations hôte-parasite devraient désormais être considérées comme des interactions tripartites où le microbiote façonne le phénotype de l'hôte et sa

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14

Faure, Beaulieu Nina. "Dedicated dads: a study on the nesting behaviour of Spondyliosoma emarginatum (Telostei: Sparidae)." Master's thesis, Faculty of Science, 2021. http://hdl.handle.net/11427/33661.

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Fish display the most diverse parental care behaviours within the animal kingdom. These behaviours are important from evolutionary and conservation perspectives as parental care is critical for the development and survival of the young. This study used video monitoring to uncover the nesting behaviour of an endemic southern African species of the Sparidae family, Spondyliosoma emarginatum (steentjie). S. emarginatum has evolved a nesting strategy by which males create nests on the seafloor for females to lay their eggs in. The eggs are fertilised and guarded by the male until they hatch. This

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15

Hesp, Sybrand Alexander. "Biology of two species of sparid on the west coast of Australia." Thesis, Hesp, Sybrand Alexander (2003) Biology of two species of sparid on the west coast of Australia. PhD thesis, Murdoch University, 2003. https://researchrepository.murdoch.edu.au/id/eprint/76/.

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Various aspects of the biology of the tarwhine Rhabdosargus sarba and western yellowfin bream Acanthopagrus latus were studied. The studies on R. sarba have focused on populations in temperate coastal marine waters at ca 32 degrees S and the lower reaches of an estuary (Swan River Estuary) located at the same latitude and in a subtropical embayment (Shark Bay) at ca 26 degrees S, while those on A. latus were conducted on the population in the latter embayment. A combination of a macroscopic and histological examination of the gonads demonstrated that R. sarba is typically a rudimentary herm

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16

Hesp, Sybrand Alexander. "Biology of two species of sparid on the west coast of Australia." Hesp, Sybrand Alexander (2003) Biology of two species of sparid on the west coast of Australia. PhD thesis, Murdoch University, 2003. http://researchrepository.murdoch.edu.au/76/.

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Various aspects of the biology of the tarwhine Rhabdosargus sarba and western yellowfin bream Acanthopagrus latus were studied. The studies on R. sarba have focused on populations in temperate coastal marine waters at ca 32 degrees S and the lower reaches of an estuary (Swan River Estuary) located at the same latitude and in a subtropical embayment (Shark Bay) at ca 26 degrees S, while those on A. latus were conducted on the population in the latter embayment. A combination of a macroscopic and histological examination of the gonads demonstrated that R. sarba is typically a rudimentary herm

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17

Henriques, Paulo Jorge Chaves dos Santos. "Estudo da eco-etologia de diplodus vulgaris (pisces: sparidae)- padrões agonísticos e estruturação social." Master's thesis, Instituto Superior de Psicologia Aplicada, 1997. http://hdl.handle.net/10400.12/585.

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Dissertação de mestrado em Etologia<br>Os principais desideratos deste trabalho baseiam-se no estabelecimento do reportório comportamental básico e organização social de Diplodus vulgaris, como forma de resposta às pressões ambientais, que podem favorecer ou inibir, em maior ou menor grau, as várias modalidades do comportamento agonístico. O sistema agonístico de D. vulgaris é constituído por padrões comportamentais que envolvem sinais de intimidação, fuga e submissão. Alguns destes elementos implicam confrontação física directa, enquanto outros envolvem manobras no sentido de uma aparente re

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18

Ensair, Hend Assiad M. "The biology of Boopsoidea inornata (Castelnau, 1861) and life history comparisons within the Sparidae." Doctoral thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/31412.

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South African marine ichthyofauna has remarkable diversity across a range of biogeographic zones from cold-temperate to subtropical. Two families stand out here, both with high diversity and high rates of endemism to the region, namely Sparidae and Clinidae. The Sparidae are of greater interest because of their commercial importance, and conversely, their conservation status. Several are listed as threatened by the IUCN. The Sparidae is also the family with the greatest plasticity in life history characteristics of any vertebrate family, as they include gonochorism, rudimentary hermaphrodites,

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19

Lamrini, Abdeljaouad. "Les Sparidae de la côte atlantique marocaine reproduction, croissance et exploitation de cinq espèces /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37614920n.

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20

Grant, Gareth Neil. "Movement patterns of Cape stumpnose, Rhabdosargus holubi (Sparidae), in the Kowie Estuary, South Africa." Thesis, Rhodes University, 2016. http://hdl.handle.net/10962/982.

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Rhabdosargus holubi is an ubiquitous estuary-dependent fishery species endemic to southern Africa. Although aspects of its recruitment dynamics from sea to estuary have received considerable research attention, little is known about its movement behaviour within estuarine systems. Fishery surveys have also revealed that R. holubi is a dominant species in catches within several temperate estuaries in South Africa. Therefore, investigating movement behaviour is fundamental to understanding the ecology of this species and providing a means for implementing effective fisheries management strategie

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21

au, corey wakefield@fish wa gov, and Corey Brion Wakefield. "Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia." Murdoch University, 2006. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20080530.105016.

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This study focused on obtaining sound quantitative data on the reproductive biology, length and age compositions and growth of the snapper Pagrus auratus in the waters off Carnarvon at ca 25oS and Perth at ca 32oS on the west coast of Australia and at ca 34oS on the south coast of Western Australia. Sampling thus encompassed both sub-tropical and temperate waters and the geographical range within which this species is abundant in Western Australia. The resultant data were used to explore the ways in which the biological characteristics of P. auratus differ with latitude and thus water temperat

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22

Brouwer, Stephen Leonard. "Biology, population dynamics and management of carpenter (Argyrozona argyrozona) an endemic South African reef fish." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1005084.

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Carpenter, Argyrozona argyrozona (Valenciennes, 1830), is an endemic South African sparid fish. They form an important component of the commercial linefishery on the South African east coast, where they are the third most important species landed. Recent investigations revealed that the catch per unit effort (cpue) of this species has declined markedly since the early 1900’s. Despite these declines and the importance of this resource, remarkably little biological information on this species exists for providing management advice. This thesis investigates the life history of carpenter, particul

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23

Lee, King-yiu. "Molecular cloning and characterization of gonadotropin-releasing hormone receptors in the black seabream (Mylio macrocephalus)." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22823876.

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24

Winkler, Alexander Claus. "Taxonomy and life history of the zebra seabream, Diplodus cervinus (Perciformes: Sparidae), in southern Angola." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1012062.

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The zebra sea bream, Diplodus cervinus (Sparidae) is an inshore fish comprised of two boreal subspecies from the Gulf of Oman and the Mediterranean / north eastern Atlantic and one austral subspecies from South Africa and southern Angola. The assumption of a single austral subspecies has, however, been questioned due to mounting molecular and morphological evidence suggesting that the cool Benguela current is a vicariant barrier that has separated many synonymous inshore fish species between South Africa and southern Angola. The aims of this thesis are to conduct a comparative morphological an

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25

Bennett, Rhett Hamilton. "Movement patterns, stock delineation and conservation of an overexploited fishery species, Lithognathus Lithognathus (Pisces: Sparidae)." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1015709.

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White steenbras Lithognathus lithognathus (Pisces: Sparidae) has been a major target species of numerous fisheries in South Africa, since the late 19th century. Historically, it contributed substantially to annual catches in commercial net fisheries, and became dominant in recreational shore catches in the latter half of the 20th century. However, overexploitation in both sectors resulted in severe declines in abundance. The ultimate collapse of the stock by the end of the last century, and the failure of traditional management measures to protect the species indicate that a new management app

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26

Bause, Mariëtte. "The challenge of applying systematic conservation planning to the marine environment using expert knowledge (focus: Sparidae)." Thesis, University of Port Elizabeth, 2004. http://hdl.handle.net/10948/343.

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Although the marine environment has generally been considered to be less in need of attention from conservationists, politicians and managers than the terrestrial environment, there has been an increasing appreciation that there is little left in the marine environment that can be considered unaltered by humans. Conservation action is therefore urgently needed to protect marine populations, species and environments from anthropogenic pressures. Since overharvesting seems to be the main cause of the collapse in coastal ecosystems, areas need to be protected so that stocks can recover. However,

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27

Richardson, Timothy John. "The taxonomy, life-history and population dynamics of blacktail, Diplodus Capensis (Perciformes: Sparidae), in southern Angola." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1005170.

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The blacktail, Diplodus capensis, is an inshore sparid fish distributed from Mozambique to Angola. This species forms an important component of coastal fisheries within its distribution, one being the subsistence handline fishery in southern Angola. With this fishery being critically important to the livelihoods of local communities, a biological study and stock assessment was conducted to provide information for the management of this species in southern Angola. However, with molecular evidence suggesting that the Benguela current may have separated the southern African populations of many in

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28

Pankhurst, Patricia Melva. "Growth, development and visual ontogeny of two temperate reef teleosts Pagrus auratus, (Sparidae) and Forsterygion varium, (Tripterygiidae)." Thesis, University of Auckland, 1991. http://hdl.handle.net/2292/2000.

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Growth, development and behaviour were examined in artificially reared larval Pagrus auratus and Forsterygion varium, from the time of hatching. Yolk-sac larval P.auratus hatched at a small size (2.00mm SL), without functional eyes, mouth or digestive tract, and for three days spent long periods at rest. Growth was initially rapid but slowed by 3 days as yolk reserves neared depletion. By days 4-5, the mouth had opened, eyes were functional, yolk was depleted, and a rudimentary gut had formed. Larvae were now able to maintain a horizontal swimming mode and were actively searching for and attac

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29

Desdevises, Yves. "Recherche des déterminants de la spécifité parasitaire dans le modèle Lamellodiscus (Diplectanidae, Monogenea)-Sparidae (Teleostei) en Méditerranée." Perpignan, 2000. http://www.theses.fr/2001PERP0445.

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L'objectif de cette thèse était de mieux comprendre ce qui contrôle la spécifité parasitaire dan sle système hôte-parasite constitué par les poissons de la famille Sparidae et leurs monogènes (Plathelminthes ectoparasites) spécifiques du genre Lamellodiscus. Il s'agissait de comprendre les causes amenant une espèce parasite à utiliser une seule ou plusieurs espèces hôtes. L'hypothèse d'une augmentation de la diversité taxonomique avec la spécifité a également été testée. La coévolution hôte-parasite a été étudiée afin de déterminer si le profil d'association hôte-parasite est contrôlé par des

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Accioly, Ingrid Vilar. "Levantamento cariot?pico em esp?cies de peixes marinhos costeiros de fundo arenoso (Osteichthypes, Perciformes)." Universidade Federal do Rio Grande do Norte, 2007. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16774.

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Made available in DSpace on 2014-12-17T15:18:12Z (GMT). No. of bitstreams: 1 IngridVA_autorizado_ate_cap2.pdf: 705641 bytes, checksum: d9f1741d729cff0e052cd2778eb5ad9e (MD5) Previous issue date: 2007-02-27<br>Cytogenetics analyses in fish are important because they compose a private group among the vertebrates, occupying a central position in the animal evolution. The Perciforms Order, dominant in the marine and freshwater environment, it constitutes a model potentially useful in the genetic evaluation of populations, as well as in the understanding of its evolutionary processes. In spite of

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31

李景耀 and King-yiu Lee. "Molecular cloning and characterization of gonadotropin-releasing hormone receptors in the black seabream (Mylio macrocephalus)." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31224635.

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32

Watt-Pringle, Peter Andrew. "Movement bahaviour of three South African inshore sparid species in rocky intertidal and shallow subtidal habitats." Thesis, Rhodes University, 2009. http://hdl.handle.net/10962/d1005147.

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This study investigated the movement behaviour of three inshore South African sparids – blacktail (Diplodus sargus capensis), zebra (Diplodus cervinus hottentotus) and white musselcracker (Sparodon durbanensis), popular inshore fishery species caught in appreciable numbers along much of the South African coast. The first study component examined movements of juveniles in a rocky intertidal nursery area at Schoenmakerskop near Port Elizabeth. Juveniles in a single gully were tagged with Visible Implant Elastomer (VIE) and resighted at the study site on snorkelling gear over a seven-month period

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33

Vigliola, Laurent. "Contrôle et régulation du recrutement des Sparidae (Poissons, Téléostéens) en Méditerranée : importance des processus pré- et post-installation benthique." Aix-Marseille 2, 1998. http://www.theses.fr/1998AIX22082.

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La population constitue la piece structurale elementaire des ecosystemes. La taille des populations d'organismes marins benthiques a phase larvaire planctonique etant determinee en quasi-totalite par l'intensite du recrutement, parametre repute pour sa variabilite et son caractere imprevisible, il est necessaire d'en etudier precisement les modalites. Ce travail de quatre annees (1993 a 1996) porte sur l'importance des processus pre- et post-installation benthique sur le recrutement de trois especes de poissons sparidae des cotes rocheuses mediterraneennes, diplodus puntazzo (cetti), d. Sargus

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34

Pulfrich, Andrea Christine. "Aspects of the biology of, and fishery for, the Hottentot, Pachymetopon blochii (Val.) (Sparidae), in the Western and Southwestern Cape." Master's thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/21932.

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Data extracted from historic records have been used together with information collected during a survey of major fishing centres in the west and southwest Cape, from Port Nolloth to Struis Bay, to document the development of the handline fishery, with special reference to the fishery for hottentot Pachymetopon blochii (Val.). The fishing communities are described and social conditions are compared with those reported in earlier surveys. Changes in the fishing vessels and tackle used in the handline fishery are described and the economic status of the fishery evaluated. The distribution and ava

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35

Rosecchi, Elisabeth. "Ethologie alimentaire des Sparidae Diplodus annularis, Diplodus sargus, Diplodus vulgaris, Pagellus erythrinus, Sparus aurata du golfe du Lion et des étangs palavasiens." Montpellier 2, 1985. http://www.theses.fr/1985MON20055.

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Le regime alimentaire des spares, de la daurade et du pageot et son role dans le determinisme des migrations entre mer et lagune sont aborbes sous les angles suivants: adaptations morphologiques, choix trophiques, traitement des donnees

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36

Leslie, Timothy David. "Assessing estuarine nursery habitats for Cape Stumpnose (Rhabdosargus holubi), (Pisces: Sparidae) in a warm-temperate estuary in the Eastern Cape, South Africa." Thesis, Rhodes University, 2016. http://hdl.handle.net/10962/3178.

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The nursery role hypothesis provides an approach for assessing the nursery function of habitat types within estuaries. This study attempted to assess the nursery value of the dominant estuarine habitats in the Bushmans Estuary for Rhabdosargus holubi (Steindachner 1881) by analysing habitat complexity, relative abundance and behaviour of R. holubi and using stomach contents analysis and dietary diatom composition as indicative of feeding habitat. Structural habitat complexity was assessed in Zostera capensis (Setchell) seagrass and Spartina maritima (Curtis Fernald) salt marsh by sampling abov

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37

Clarke, John Ross. "Aspects of the biology of the musselcracker, Sparodon Durbanensis, and the bronze bream, Pachymetopon grande, (Pisces : Sparidae), with notes on the Eastern Cape recreational rock-angling and spear fisheries." Thesis, Rhodes University, 1988. http://hdl.handle.net/10962/d1001966.

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The musselcracker, Soarodon durbanensis, and the bronze bream, Pachymetopon arande, are important components of rock-angling and spearfishing catches In the Eastern Cape. Aspects of their biology, including age and growth, reproduction, nursery areas and feeding, were Investigated to provide a basis for the rational exploitation of the resource. Both species are slow-growing and long-lived. Growth in S. durbanensls was described by the von Bertalanffy growth equation: Lt(mm) = 1021.2(1-e⁻°.°⁹°°⁽t ⁻° .⁷°⁹⁾). The von Bertalanffy growth model did not describe the total data set in P. grande, but

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38

Pérez-del-Olmo, Ana. "Biodiversity and structure of parasite communities in Boops boops (Teleostei: Sparidae) from the Western Mediterranean and off the North East Atlantic coasts of Spain." Doctoral thesis, Universitat de València, 2008. http://hdl.handle.net/10803/10353.

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The present study carried out a detailed assessment of the metazoan parasite fauna in Boops boops (Sparidae) along the Spanish coasts off the Western Mediterranean and North-East Atlantic, which provided taxonomically consistent dataset comprising three levels of parasite community organisation that allowed questions regarding the structure of parasite communities to be addressed.The diversity of the parasite fauna of B. boops appeared to be higher than previously thought, as evidenced by the description of one new species, Wardula bartolii Pérez-del-Olmo et al., 2006 and the recovery of 53 pa

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Al-Abdul-Elah, Khaled M. "Biotic and abiotic factors influencing initial swimbladder inflation of the blue-finned sea bream Acanthopagrus cuvieri (Sparidae), with particular reference to aquaculture in Kuwait." Thesis, University of Stirling, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278746.

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Coco, Salvatore. "Ritmi stagionali negli Sparidi: 3 anni di video monitoraggio con l’osservatorio cablato OBSEA." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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In questo studio è stato utilizzato un osservatorio video cablato (OBSEA, www.obsea.es) per il monitoraggio dei ritmi stagionale e annuali della composizione della comunità ittica costiera (20 m) nel Mediterraneo occidentale, in prossimità di una struttura artificiale. Nell’arco di 3 anni (2012-2014) è stata scattata una foto ogni 30 minuti utilizzando una videocamera ad alta risoluzione. Sono state inoltre registrate due importanti variabili ambientali che modulano il comportamento dei pesci: la temperatura dell'acqua e il fotoperiodo. In ogni foto è stato determinato il numero di individui d

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Arendse, Clement J. "Aspects of the early life history and a per-recruit assessment of white stumpnose Rhabdosargus globiceps (Pisces: Sparidae) in Saldanha Bay with recommendations for future research and monitoring." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10069.

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This study focuses on several aspects of the life history of R. globiceps, and includes a study of juvenile habitat, a hatch date analysis, methods to increase precision of age estimates obtained from reading otoliths and a per-recruit assessment.

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Baelde, Pascale. "La Faune ichtyologique du Lagon du Grand Cul-de-SacMarin en Guadeloupe structure des peuplements et contribution à l'étude de la biologie d'Archosargus rhomboïdalis, Sparidae, et d'Ocyurus chrysurus, Lutjanidae." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37595657w.

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Murray, Taryn Sara. "Movement patterns and genetic stock delineation of an endemic South African sparid, the Poenskop, Cymatoceps nasutus (Castelnau, 1861)." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1001514.

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Poenskop Cymatoceps nasutus (Pisces: Sparidae), an endemic South African sparid, is an important angling species being predominantly targeted by the recreational shore and skiboat sector. This species is slow-growing, long-lived, late-maturing and sex-changing, making poenskop acutely sensitive to over-exploitation. Despite interventions, such as the imposition of size and bag limits (currently 50 cm TL and one per licensed fisher per day) by authorities, catch-per-unit-effort trends reflect a severe and consistent stock decline over the last two decades. Poenskop has been identified as a prio

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Duncan, Murray. "The genetic stock structure and distribution of Chrysoblephus Puniceus, a commercially important transboundary linefish species, endemic to the South West Indian Ocean." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1011868.

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Chrysoblephus puniceus is an over-exploited linefish species, endemic to the coastlines off southern Mozambique and eastern South Africa. Over-exploitation and habitat loss are two of the biggest threats to the sustainability of fisheries globally. Assessing the genetic stock structure (a prerequisite for effective management) and predicting climate related range changes will provide a better understanding of these threats to C. puniceus which can be used to improve the sustainability of the fishery. Two hundred and eighty four genetic samples were collected from eight sampling sites between P

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Besseau, Laurence. "L'hermaphrodisme protandre chez les sparidés : les potentialités de l'ovotestis dans le modèle Lithognathus mormyrus." Perpignan, 1991. http://www.theses.fr/1991PERP0114.

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L'etude de la sexualite du marbre, lithognathus mormyrus, est apprehendee par une analyse biometrique, sclerochronologique, histologique et cytologique d'une population du littoral mediterraneen roussillonnais. Les parametres de la croissance du marbre sont estimes par ajustement au modele de von bertalanffy. Trois types d'architecture de la sagitta (meb) sont mis en relation avec le statut sexuel des poissons. Les modalites de la gonadogenese chez l. Mormyrus sont decrites: a deux mois, la bisexualite est acquise. Chez des specimens d'un an, trois types d'ovotestis juveniles sont identifies:

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Di, Franco Eugenio. "Impact de la pollution sonore sur les juvéniles de sparidés méditerranéens." Thesis, Université Côte d'Azur, 2021. http://www.theses.fr/2021COAZ4089.

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L’environnement marin est extrêmement sonore et les animaux marins utilisent ces sons pour plusieurs activités essentielles (e.g., communiquer, s’orienter, se nourrir). Depuis la révolution industrielle, les activités humaines en mer n’ont cessé d’augmenter, ce qui a entrainé la production de sons pénétrant dans le milieu marin. La pollution sonore marine (PSM) anthropogénique se définit comme l’introduction dans l’environnement de sons causant des effets néfastes sur la vie marine. Les impacts de la PSM ont été traditionnellement étudiés sur les mammifères marins et plus récemment sur les poi

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Alama, Bermejo Gema. "Parasitological study of cultured and wild sparids in the Mediterranean." Doctoral thesis, Universitat de València, 2011. http://hdl.handle.net/10803/81891.

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Aquaculture is a growing agricultural sector that due to the actual market saturation by sea bass and gilthead sea bream, needs for new fish species diversification. Sparid fishes are important candidates for species diversification in the Mediterranean aquaculture. Under culture conditions, parasites may cause serious problems. This thesis aims to improve our knowledge of myxozoan and aporocotylid parasites in sparids which are new candidates or existing Mediterranean aquaculture species. The present study seeks to identify, describe and clarify the taxonomic position of the parasite taxa by

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Romans, Pascal. "Influence et importance relative de facteurs intrinsèques et extrinsèques sur la mortalité des alevins de Sparidés (Pisces) durant la phase d'installation benthique en Méditerranée." Perpignan, 2003. http://www.theses.fr/2003PERP0532.

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La phase d'installation benthique constitue une des périodes les plus critiques du cycle biologique des Sparidés. En effet, durant cette phase, les jeunes poissons de cette famille subissent une très forte mortalité par prédation qui peut décimer jusqu'à 99% des individus présents au moment de la période de colonisation des zones de nurseries. L'objectif de notre étude a été de rechercher l'influence des conditions environnementales sur la mortalité de 2 espèces de Sparidés, Diplodus vulgaris et Diplodus sargus. Nous avons également suivi l'évolution de plusieurs paramètres physiologiques et d

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NICOLLEAU, PATRICE. "Etude structurale, ultrastructurale et analyse physico-chimique des dents des sparides et de leurs tissus de soutien." Nantes, 1990. http://www.theses.fr/1990NANT02OD.

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au, ahesp@murdoch edu, and Sybrand Alexander Hesp. "Biology of two species of sparid on the west coast of Australia." Murdoch University, 2003. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20040302.162906.

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Various aspects of the biology of the tarwhine Rhabdosargus sarba and western yellowfin bream Acanthopagrus latus were studied. The studies on R. sarba have focused on populations in temperate coastal marine waters at ca 32oS and the lower reaches of an estuary (Swan River Estuary) located at the same latitude and in a subtropical embayment (Shark Bay) at ca 26oS, while those on A. latus were conducted on the population in the latter embayment. A combination of a macroscopic and histological examination of the gonads demonstrated that R. sarba is typically a rudimentary hermaphrodite in Weste

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