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| Registros recuperados: 17 | |
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| Andrello, Marco; Mouillot, David; Somot, Samuel; Thuiller, Wilfried; Manel, Stephanie. |
| AimTo study the combined effects of climate change on connectivity between marine protected areas (MPAs) and larval supply to the continental shelf. LocationThe Mediterranean Sea, where sea surface temperatures are expected to strongly increase by the end of the 21st century, represents an archetypal situation with a dense MPA network but resource overexploitation outside. MethodsUsing an individual-based mechanistic model of larval transport, forced with an emission-driven regional climate change scenario for the Mediterranean Sea, we explored the combined effects of changes in hydrodynamics, adult reproductive timing and larval dispersal on the connectivity among MPAs and their ability to seed fished areas with larvae. ResultsWe show that, over the... |
| Tipo: Text |
Palavras-chave: Biophysical model; Conservation planning; Epinephelus marginatus; Larval dispersal; Larval growth rate; Reproductive timing. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00627/73867/73398.pdf |
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| Magris, Rafael A.; Andrello, Marco; Pressey, Robert L.; Mouillot, David; Dalongeville, Alicia; Jacobi, Martin N.; Manel, Stephanie. |
| Current methods in conservation planning for promoting the persistence of biodiversity typically focus on either representing species geographic distributions or maintaining connectivity between reserves, but rarely both, and take a focal species, rather than a multispecies, approach. Here, we link prioritization methods with population models to explore the impact of integrating both representation and connectivity into conservation planning for species persistence. Using data on 288 Mediterranean fish species with varying conservation requirements, we show that: (1) considering both representation and connectivity objectives provides the best strategy for enhanced biodiversity persistence and (2) connectivity objectives were fundamental to enhancing... |
| Tipo: Text |
Palavras-chave: Biodiversity conservation; Larval dispersal; Marine protected areas; Marine reserve design; Spatial planning; Spatial prioritization. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00454/56593/74958.pdf |
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| Zimmer,Cristine R; Pires,Sabrina M; Cárcamo,Marcial C; Ribeiro,Paulo B. |
| Muscina stabulans (Fallén) is a synanthropic fly commonly found in decomposing animal matter. Once food resources are exhausted, larvae will disperse in search for a suitable place to pupariate or for an additional source of food. The behavior of propagation of postfeeding L3 larvae was studied by analyzing the distance of propagation, the depth of pupariation site, the pupal weight and sex ratio using a 50 cm circular arena divided in four quadrants, and filled with a 10 cm thick layer of humid sawdust. The total of 70.9% of the larvae pupariate up to 20 cm away from the arena's center, with 41.8% of them from 2.1 cm to 4.0 cm deep. Pupae that did not yield adults were lighter, and were originated by larvae that moved longer away and dug deeper to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Larval dispersal; Distance of propagation; Depth of pupariation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000200008 |
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| Gomes,Leonardo; Von Zuben,Claudio José. |
| Blowflies utilize discrete and ephemeral sites for breeding and larval nutrition. After the exhaustion of food, the larvae begin dispersing to search for sites to pupate or for additional food source, process referred as postfeeding larval dispersal. Some aspects of this process were investigated in Lucilia cuprina (Wiedemann, 1830), utilizing a circular arena to permit the radial dispersion of larvae from the food source in the center. To determine the localization of each pupa, the arena was split into 72 equal sectors from the center. For each pupa, distance from the center of arena, weight and depth were determined. Statistical tests were performed to verify the relation among weight, depth and distance of burying for pupation. It was verified that the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blowflies; Calliphoridae; Lucilia; Forensic entomology; Larval dispersal. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000200004 |
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| Zaharias, Paul; Kantor, Yuri, I; Fedosov, Alexander E.; Criscione, Francesco; Hallan, Anders; Kano, Yasunori; Bardin, Jeremie; Puillandre, Nicolas. |
| The practice of species delimitation using molecular data commonly leads to the revealing of species complexes and an increase in the number of delimited species. In a few instances, however, DNA-based taxonomy has led to lumping together of previously described species. Here, we delimit species in the genus Cryptogemma (Gastropoda: Conoidea: Turridae), a group of deep-sea snails with a wide geographical distribution, primarily by using the mitochondrial COI gene. Three approaches of species delimitation (ABGD, mPTP and GMYC) were applied to define species partitions. All approaches resulted in eight species. According to previous taxonomic studies and shell morphology, 23 available names potentially apply to the eight Cryptogemma species that were... |
| Tipo: Text |
Palavras-chave: Species delimitation; Species description; ABGD; GMYC; PTP; Deep-sea species; Larval dispersal; Cosmopolitan species. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00688/79988/82966.pdf |
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| Miller, Michael J.; Marohn, Lasse; Wysujack, Klaus; Bonhommeau, Sylvain; Kuroki, Mari; Freese, Marko; Pohlmann, Jan-dag; Watanabe, Shun; Blancke, Tina; Weist, Peggy; Castonguay, Martin; Westerberg, Håkan; Tsukamoto, Katsumi; Hanel, Reinhold. |
| Leptocephali of the shallow-water congrid eel Ariosoma balearicum are abundant during February–April in the Sargasso Sea, and larval and adult meristic data indicates this species includes several regional subpopulations/cryptic species. Four multiple-transect larval surveys (2011, 2014, 2015, 2017) were used to examine the geographic size distribution of two myomere-count types of A. balearicum leptocephali. High-count (HC) larvae were consistently mostly between 80 and 100 mm in size (60–132 mm; 87.9 ± 6.8 mm) as observed previously, and frequently had narrow size ranges. The usually larger LC larvae (78–176 mm; 111.4 ± 26.7 mm) were more abundant in western or central areas. HC larvae tended to decrease in size from west to east and increase from south... |
| Tipo: Text |
Palavras-chave: Ariosoma balearicum; Leptocephali; Larval dispersal; Sargasso Sea; Subtropical gyre; Cryptic species. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00509/62028/66491.pdf |
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| Lett, Christophe; Tri Nguyen-huu,; Cuif, Marion; Saenz-agudelo, Pablo; Kaplan, David. |
| Three indices of larval retention have been used in the literature to assess the tendency for self-maintenance of local marine populations: local retention (LR), self-recruitment (SR), and relative local retention (RLR). Only one of these, LR, defined as the ratio of locally produced settlement to local egg production, has a clear relationship to self-persistence of individual sites. However, SR, the ratio of locally produced settlement to settlement of all origins at a site, is generally easier to measure experimentally. We use theoretical, simulation, and empirical approaches to bridge the gap between these different indices, and demonstrate that there is a proportional relationship between SR and LR for metapopulations close to a stable state and with... |
| Tipo: Text |
Palavras-chave: Connectivity; Larval dispersal; Lifetime egg production; Local retention; Marine reserve; Metapopulation; Network persistence; Population persistence; Self-persistence; Self-recruitment. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00275/38628/81243.pdf |
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| Nicolle, Amandine; Moitie, Roderic; Ogor, Julien; Dumas, Franck; Foveau, Aurelie; Foucher, Eric; Thiebaut, Eric. |
| The great scallop Pecten maximus supports one of the most important and valuable commercial fisheries around the British Isles and in the northwest of France, but the resource is mainly managed at the scale of each local fishing ground through a combination of European, national and local measures. To analyse the larval dispersal pathways and connectivity patterns among fishing grounds of the great scallop in the Celtic Sea and the English Channel, a particle tracking model was developed. The model combined a 3D physical circulation model that simulated currents and temperature fields and a scallop larval submodel that took into account a temperature-dependent planktonic larval duration and an active vertical swimming behaviour. Due to the lack of stock... |
| Tipo: Text |
Palavras-chave: Connectivity; English Channel; Fishery management; Great scallop; Larval dispersal; Particle-tracking model. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00363/47375/50155.pdf |
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| CHRISTY,JOHN H.. |
| Many intertidal and shallow water crabs have strong reproductive cycles and migratory larvae. Females release larvae near the time of high water of the larger amplitude nocturnal tides during the semilunar or lunar cycles. Newly hatched larvae move quickly at night toward and into the sea where, weeks later, they develop to megalopae that then ride nocturnal flood tides inshore and up estuaries to settle in adult habitats. It was first thought that crabs might time larval release so that larvae will become megalopae when they can ride the larger amplitude spring flood tides to adult habitats. This idea was rejected when it was found that were was no change in the timing of hatching during the breeding season by several estuarine species that would... |
| Tipo: Journal article |
Palavras-chave: Larval release; Larval dispersal; Crabs; Reproductive timing; Plankton; Predation. |
| Ano: 2003 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000200005 |
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| Santos, Amp; Nieblas, Anne-elise; Verley, P.; Teles-machado, A.; Bonhommeau, Sylvain; Lett, C.; Garrido, S.; Peliz, A.. |
| The European sardine (Sardina pilchardus) is the most important small pelagic fishery of the Western Iberia Upwelling Ecosystem (WIUE). Recently, recruitment of this species has declined due to changing environmental conditions. Furthermore, controversies exist regarding its population structure with barriers thought to exist between the Atlantic-Iberian Peninsula, Northern Africa, and the Mediterranean. Few studies have investigated the transport and dispersal of sardine eggs and larvae off Iberia and the subsequent impact on larval recruitment variability. Here, we examine these issues using a Regional Ocean Modeling System climatology (1989-2008) coupled to the Lagrangian transport model, Ichthyop. Using biological parameters from the literature, we... |
| Tipo: Text |
Palavras-chave: Iberian Peninsula; Sardina pilchardus; Larval dispersal; Lagrangian transport; Ichthyop; Regional Ocean Modeling System. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00427/53814/54784.pdf |
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| Muir, Anna P.; Dubois, Stanislas; Ross, Rebecca E.; Firth, Louise B.; Knights, Antony M.; Lima, Fernando P.; Seabra, Rui; Corre, Erwan; Le Corguillé, Gildas; Nunes, Flavia. |
| ackground Under the threat of climate change populations can disperse, acclimatise or evolve in order to avoid fitness loss. In light of this, it is important to understand neutral gene flow patterns as a measure of dispersal potential, but also adaptive genetic variation as a measure of evolutionary potential. In order to assess genetic variation and how this relates to environment in the honeycomb worm (Sabellaria alveolata (L.)), a reef-building polychaete that supports high biodiversity, we carried out RAD sequencing using individuals from along its complete latitudinal range. Patterns of neutral population genetic structure were compared to larval dispersal as predicted by ocean circulation modelling, and outlier analyses and genotype-environment... |
| Tipo: Text |
Palavras-chave: RADseq; Ocean circulation modelling; Adaptation; Marine invertebrate; Larval dispersal. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00643/75538/76445.pdf |
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| Rossi, Vincent; Lo, Madiop; Legrand, Terence; Ser-giacomi, Enrico; De Jode, Aurélien; Thierry De Ville D’avray, Laure; Pairaud, Ivane; Faure, Vincent; Fraysse, Marion; Pinazo, Christel; Chenuil, Anne. |
| Habitat connectivity is central to several key evolutionary and ecological processes, having implications for the spatial structuring of marine populations. For benthic species that have no or little mobility as adults, connectivity is evaluated by analyzing the dispersal of propagules across the seascape. We investigate fine-scale connectivity of coralligenous habitats in Marseille Bay (located in the north-western Mediterranean) sea using high-resolution cartography and a particle-tracking model ran over a range of parameters derived from the biological traits of potential target species. We present annual and seasonal means of various connectivity diagnostics measuring the retention and exchange of propagules among coralligenous patches. A synthetic... |
| Tipo: Text |
Palavras-chave: Habitat connectivity; Larval dispersal; Coralligenous assemblages; Benthic organisms; Oceanic circulation; Lagrangian modeling; Population genetics; Community composition. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00680/79225/81737.pdf |
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| Registros recuperados: 17 | |
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