نتایج جستجو برای: reef

تعداد نتایج: 11470  

2017
Nicholas A Farmer William D Heyman Mandy Karnauskas Shinichi Kobara Tracey I Smart Joseph C Ballenger Marcel J M Reichert David M Wyanski Michelle S Tishler Kenyon C Lindeman Susan K Lowerre-Barbieri Theodore S Switzer Justin J Solomon Kyle McCain Mark Marhefka George R Sedberry

Managed reef fish in the Atlantic Ocean of the southeastern United States (SEUS) support a multi-billion dollar industry. There is a broad interest in locating and protecting spawning fish from harvest, to enhance productivity and reduce the potential for overfishing. We assessed spatiotemporal cues for spawning for six species from four reef fish families, using data on individual spawning con...

2015
Paolo Momigliano Robert Harcourt William D. Robbins Adam Stow

Grey reef sharks (Carcharhinus amblyrhynchos) can be one of the numerically dominant high order predators on pristine coral reefs, yet their numbers have declined even in the highly regulated Australian Great Barrier Reef (GBR) Marine Park. Knowledge of both large scale and fine scale genetic connectivity of grey reef sharks is essential for their effective management, but no genetic data are y...

2012
Valerie Allain Emilie Fernandez Simon D. Hoyle Sylvain Caillot Jesus Jurado-Molina Serge Andréfouët Simon J. Nicol

The Western and Central Pacific Ocean sustains the highest tuna production in the world. This province is also characterized by many islands and a complex bathymetry that induces specific current circulation patterns with the potential to create a high degree of interaction between coastal and oceanic ecosystems. Based on a large dataset of oceanic predator stomach contents, our study used gene...

2002
Jelle Atema Michael J. Kingsford Gabriele Gerlach

While evidence is mounting that larval reef fish are active participants in the process of dispersal and settlement, the sensory and behavioural mechanisms by which these fishes disperse and return from their oceanic phase to the reefs remain unknown. On One Tree Island (Great Barrier Reef, Australia), we tested freshly collected animals in a large choice-flume on the shore. Here, we present th...

Journal: :F1000Research 2015
Wladimir J Alonso

No evolutionary explanation for the striking colouration of coral reef fish has been established to date. Here I present the "Hyper-Visible World" hypothesis, which proposes that coral reef habitats impose special conditions on the evolution of body-colour communication for mobile fish - that is, fish that roam across coral reef formations. The special conditions are: 1) the high clarity of wat...

2016
James A. Smith Michael B. Lowry Iain M. Suthers

has local production. The local fish production at this artificial reef was 384 g m−2 year−1, which is within the 105– 887 g m−2 year−1 range reported by Claisse et al., although our study included visitor species not included by Claisse et al. We estimate that the fish production new to the ecosystem may only be 4–5 % of the local production, due to the large abundance of visitor species on th...

2014
Emily C. Shaw Stuart R. Phinn Bronte Tilbrook Andy Steven

Coral reef calcification is predicted to decline as a result of ocean acidification and other anthropogenic stressors. The majority of studies predicting declines based on in situ relationships between environmental parameters and net community calcification rate have been location-specific, preventing accurate predictions for coral reefs globally. In this study, net community calcification and...

2010
Jonathan J. Dale Carl G. Meyer Christian E. Clark Robert J. Toonen

Coral reef habitats in the Papahānaumokuākea Marine National Monument (PMNM) are characterized by abundant top-level predators such as sharks and jacks. The predator assemblage is dominated both numerically and in biomass by giant trevally (Caranx ignobilis) and Galapagos sharks (Carcharhinus galapagensis). A lower diversity of predatory teleosts, particularly groupers and snappers, distinguish...

2016
Laura Rix Jasper M. de Goeij Christina E. Mueller Ulrich Struck Jack J. Middelburg Fleur C. van Duyl Fuad A. Al-Horani Christian Wild Malik S. Naumann Dick van Oevelen

Shallow warm-water and deep-sea cold-water corals engineer the coral reef framework and fertilize reef communities by releasing coral mucus, a source of reef dissolved organic matter (DOM). By transforming DOM into particulate detritus, sponges play a key role in transferring the energy and nutrients in DOM to higher trophic levels on Caribbean reefs via the so-called sponge loop. Coral mucus m...

2002
John C. Ogden Thomas P. Quinn

Coral reef fishes are in general rather sedentary and territoriality and home range behavior patterns are highly developed. However, many species migrate, often relatively long distances compared to body size and often with spectacular precision. Migrations in reef fishes may be associated with: 1) life history-movements of planktonic larval stages to reefs or movements of juveniles from nurser...

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