Community Structure Of Demersal Temperate Reef Fish At Artificial And Natural Reefs In South Carolina As A Function Of Reef Age And Season

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Community Structure of Demersal Temperate Reef Fish at Artificial and Natural Reefs in South Carolina as a Function of Reef Age and Season

Author : Carly Altizer
Publisher :
ISBN 13 :
Total Pages : 125 pages
Book Rating : 4.:/5 (884 download)

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Book Synopsis Community Structure of Demersal Temperate Reef Fish at Artificial and Natural Reefs in South Carolina as a Function of Reef Age and Season by : Carly Altizer

Download or read book Community Structure of Demersal Temperate Reef Fish at Artificial and Natural Reefs in South Carolina as a Function of Reef Age and Season written by Carly Altizer and published by . This book was released on 2013 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial reefs serve numerous important functions in the South Atlantic Bight by providing new recreational fishing and diving locations, contributing to state economies, and providing additional habitat for economically valuable reef fishes. However, little is known about how fish communities develop in temperate regions once a new reef is deployed, how they compare to adjacent natural reefs, and how these communities are influenced by season. Therefore, SCUBA video surveys were conducted over a 13-year period (1999-2012) at four unpublished artificial reef sites, three published artificial reef sites of varying ages, and two natural reef sites to assess the impacts of ecological succession and seasonality on species richness, diversity, evenness, fish density, and community structure. Season and reef age had significant effects on diversity and community structure at the unpublished sites, while season alone accounted for these trends at the published sites. Black seabass and tomtate dominated reef fish community structure at the published sites, while economically valuable species, such as groupers and snappers, were more abundant at the unpublished and natural reef sites. These results suggest that fish communities develop quickly at new artificial reefs (i.e., within the first year post-deployment) and that fishing pressure on publicly known reefs may obscure or even prevent community succession.

Oceanic Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 900 pages
Book Rating : 4.X/5 (6 download)

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Book Synopsis Oceanic Abstracts by :

Download or read book Oceanic Abstracts written by and published by . This book was released on 1997-04 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Reef Fish Community Structure [microform] : an Experimental Study Using Small Artificial Reefs in Barkley Sound, British Columbia

Author : Gascon, Dominique
Publisher : National Library of Canada
ISBN 13 : 9780315123724
Total Pages : 0 pages
Book Rating : 4.1/5 (237 download)

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Book Synopsis Reef Fish Community Structure [microform] : an Experimental Study Using Small Artificial Reefs in Barkley Sound, British Columbia by : Gascon, Dominique

Download or read book Reef Fish Community Structure [microform] : an Experimental Study Using Small Artificial Reefs in Barkley Sound, British Columbia written by Gascon, Dominique and published by National Library of Canada. This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using small artificial reefs made of cement blocks, a community of shallow water reef fishes was experimentally studied in Barkley Sound (British Columbia) to examine the structuring mechanisms in this assemblage The community under study inhabited a shallow reef made of rock boulders. The abundance of fish fluctuated with the seasons The species diversity of this fish community was low (H' = 0.3-10), one species (Coryphopterus nicho/si) comprising more than 80% of the individuals present Four species of rockfishes ( Sebastes caurinus, S. ma/iger, S. me/anops, and S. pinniger) and three species of benthic fishes (Hexagrammos decagrammus, Jordania zonope, and Artedius spp.) were also common. Experimental communities were established on ten identical artificial reefs made of cement blocks. Two series of reefs, built six months apart on sand 10 m away from the natural reef, tested the effects of seasons on community development. A third series, built in direct contact with the natural reef, examined the effects of distance and isolation on community development In each series a species equilibrium (approximately 6 species) was reached within six months The specific composition of the artificial reefs was similar to that of the natural reef, although species other than Coryphopterus nicho/si were more abundant Both juveniles and adults of all species were present, except for the rockfishes, which were represented only by young individuals. Tagging indicated that the benthic species remained permanently on the reefs, whereas a yearly turnover in rockfishes occurred The intensity of interactions between species was estimated by measuring shifts in habitat use on the artificial reefs. Only Sebastes me/anops showed consistent shifts in its space use in response to changes in the density of other species Only two of these shifts appeared to be the result of interspecific competition. Interactions between species, with the exception of S. me/anops had little effect on the spatial distribution of fish within the reefs. I examined the significance of the patterns of similarity between communities inhabiting identical habitats. High similarity values are usually interpreted as indicating the equilibrium status -- that is communities structured primarily by interspecific competition -- of a community, whereas low values are usually interpreted in the opposite direction -- i.e non-equilibrium communities structured by mechanisms other than interspecific competition (mostly stochastic events). This was tested using a randomization test. The null hypothesis of the test was that random colonization from the surrounding habitats was sufficient to explain the community structure on the artificial reefs. Six additional reefs (one third the original size) were built to test the effects of habitat size on community structure. The observed values on the reefs did not differ significantly from the null values, indicating that mechanisms, such as competition, were not required to explain the structure of the community. Habitat size had a strong effect, and the interpretations of previous studies were re-examined in light of this finding.

Islands in the Sand

Author : Daniel A. McCarthy
Publisher : Springer Nature
ISBN 13 : 3030403572
Total Pages : 480 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Islands in the Sand by : Daniel A. McCarthy

Download or read book Islands in the Sand written by Daniel A. McCarthy and published by Springer Nature. This book was released on 2020-10-22 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nearshore hardbottom reefs of Florida’s east coast are used by over 1100 species of fishes, invertebrates, algae, and sea turtles. These rocky reefs support reproduction, settlement, and habitat use, and are energy sources and sinks. They are also buried by beach renourishment projects in which artificial reefs are used for mitigation. This comprehensive book is for research scientists and agency personnel, yet accessible to interested laypersons including beachfront residents and water-users. An unprecedented collection of research information and often stunning color photographs are assembled including over 1250 technical citations and 127 figures. These shallow reefs are part of a mosaic of coastal shelf habitats including estuarine seagrasses and mangroves, and offshore coral reefs. These hardbottom habitats are federally designated as Essential Fish Habitats - Habitats of Particular Concern and are important feeding areas for federally-protected sea turtles. Organismal and assemblage responses to natural and man-made disturbances, including climate change, are examined in the context of new research and management opportunities for east Florida’s islands in the sand.

Reef Fish Community Structure at Unpublished Artificial Reef Sites Off Northwest Florida

Author : Michael Allen Dance
Publisher :
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.:/5 (247 download)

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Book Synopsis Reef Fish Community Structure at Unpublished Artificial Reef Sites Off Northwest Florida by : Michael Allen Dance

Download or read book Reef Fish Community Structure at Unpublished Artificial Reef Sites Off Northwest Florida written by Michael Allen Dance and published by . This book was released on 2008 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

North Carolina Artificial Reef Evaluation

Author : Kurtis L. Gregg
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis North Carolina Artificial Reef Evaluation by : Kurtis L. Gregg

Download or read book North Carolina Artificial Reef Evaluation written by Kurtis L. Gregg and published by . This book was released on 1996 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The North Carolina Artificial Reef Master Plan

Author : Elizabeth B. Noble
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.3/5 (5 download)

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Book Synopsis The North Carolina Artificial Reef Master Plan by : Elizabeth B. Noble

Download or read book The North Carolina Artificial Reef Master Plan written by Elizabeth B. Noble and published by . This book was released on 1988 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Utilization of Manufactured Reef Structures in South Carolina's Marine Artificial Reef Program

Author : Melvin Bell
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (131 download)

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Book Synopsis Utilization of Manufactured Reef Structures in South Carolina's Marine Artificial Reef Program by : Melvin Bell

Download or read book Utilization of Manufactured Reef Structures in South Carolina's Marine Artificial Reef Program written by Melvin Bell and published by . This book was released on 1989 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Size-based Insight Into the Structure and Function of Reef Fish Communities

Author : Rowan Trebilco
Publisher :
ISBN 13 :
Total Pages : 125 pages
Book Rating : 4.:/5 (112 download)

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Book Synopsis Size-based Insight Into the Structure and Function of Reef Fish Communities by : Rowan Trebilco

Download or read book Size-based Insight Into the Structure and Function of Reef Fish Communities written by Rowan Trebilco and published by . This book was released on 2014 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: What would reef fish communities look like without humans? Effective ecosystem management and con- servation requires a clear understanding of community structure and the processes that drive it. Relatively undisturbed reef fish communities appear to be inverted biomass pyramids (IBPs) with greater biomass of large-bodied predatory fishes compared to smaller fishes at lower trophic-levels. However, the processes that might give rise to IBPs are subject to debate. In this thesis I show that biomass pyramids and size spectra are equivalent and interchangeable representations of community structure. Key constraints on the slopes of size spectra - particularly mean community predator-to-prey-mass ratio (PPMR) - also constrain the shapes of biomass pyramids, meaning that IBPs are unlikely for closed communities. There are surprisingly few quantitative descriptions of biomass pyramids, and PPMR has not been estimated on reefs. I undertook a detailed case-study and quantify fish community size-structure using underwater vi- sual surveys and empirically estimate PPMR using stable isotopes at a relatively undisturbed island chain in Haida Gwaii, BC. I observe an IBP, but the PPMR estimate suggests that the community should be a stack or bottom-heavy. There is 4-5 times more biomass at the largest body-sizes than would be expected given observed PPMR. I hypothesise that the most plausible explanation is energetic subsidies. Using the same fish assemblage I show how two foundational components of habitat complexity (substrate rugosity and kelp canopy characteristics) shape fish community size-structure. Higher kelp canopy cover and den- sity leads to more biomass across all size classes, whereas higher substrate rugosity boosts the biomass of smaller-bodied fishes and leads to a more even distribution of biomass across size classes. Finally, I step back to the global scale and estimate baseline biomass spectra for the world's reef fishes, accounting for local ecological variation. Current reef fish biomass is less than half of the baseline expectation and 90% of the largest (> 1 kg), most functionally-important, individuals are absent. In addition to providing the first global description of how humans have shaped reef biomass pyramids, my thesis gives new insight into how size-based processes underlie the structure and function reef fish communities.

A Comparison of Macroinfaunal Community Structure Between Artificial Concrete Boulder Reefs and Adjacent Natural Reefs in Broward County, Florida

Download A Comparison of Macroinfaunal Community Structure Between Artificial Concrete Boulder Reefs and Adjacent Natural Reefs in Broward County, Florida PDF Online Free

Author : Amber C. Metallo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis A Comparison of Macroinfaunal Community Structure Between Artificial Concrete Boulder Reefs and Adjacent Natural Reefs in Broward County, Florida by : Amber C. Metallo

Download or read book A Comparison of Macroinfaunal Community Structure Between Artificial Concrete Boulder Reefs and Adjacent Natural Reefs in Broward County, Florida written by Amber C. Metallo and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Relatively little is known about either the biological (i.e., predation) or physical (i.e., current, sedimentation) effects that artificial reefs may have on surrounding benthic infaunal communities. Following deployment of artificial reefs (concrete boulders) between the first and second reefs off Fort Lauderdale, Florida, on 30 October 2009, sediment cores were taken at 4 distances along three replicate 10-m transects on 13 and 26 September 2013, and 24 and 25 May 2014 at each of four artificial reef sites and four of their adjacent natural reef sites using SCUBA. Infauna (>0.5mm) were extracted from the sediment and identified to the lowest possible taxonomic level. Statistical analysis (PRIMER, PERMANOVA, SIMPER) focused on four main variables: type of reef, year, site, and distance. Type of reef, year, and site was significantly different between samples, while distance did not affect density. There is a clear separation of communities between the artificial and natural reefs. From 2013 to 2014, a slight shift occurred between communities suggesting the artificial reef community composition became slightly more similar to the natural reef. All four artifical reef sites were more taxonomically distinct at the phylum and class level then the natural reef, which had higher diversity, higher species richness and more low-density taxa. This two year study provides insight on infauna communities four and five years out from deployment, but follow up monitoring in 3-5 years could shed light on whether these patterns of shift to more similar assemblages between reefs will continue as the artificial reef matures. Environmental data collection including longer time-series datasets, longer transects, and physical and geological data could provide more knowledge of how the artificial reef infaunal communities are changing over time.

Guide to South Carolina Marine Artificial Reefs

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)

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Book Synopsis Guide to South Carolina Marine Artificial Reefs by :

Download or read book Guide to South Carolina Marine Artificial Reefs written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Marine Resources Division of SCDNR currently manages more than 40 manmade fishing reefs in estuarine and offshore waters of South Carolina. These reef sites are constructed from a variety of durable materials including specially designed concrete and steel structures, ships and tugboats, barges, even army tanks and subway cars. When durable materials such as these are placed in the marine environment their surfaces are rapidly colonized, and eventually completely covered, by a wide variety of sessile organisms including algae, barnacles, corals, sponges, hydroids, bryozoans and marine worms. In time, these organisms become the foundation of the reef community and the base of the food web that is critical to later fishing success. Reefs provide shelter, food, spawning, and the presence of a distinct physical orientation point in the otherwise flat, featureless environment. Such artificial reefs are important to the development of our marine fisheries because of the relative lack of naturally occurring hard-bottom areas along our coast. --taken from introductory materials [1].

Community Structure Among Reef Fish in the Gulf of California

Author : Steven William Strand
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Community Structure Among Reef Fish in the Gulf of California by : Steven William Strand

Download or read book Community Structure Among Reef Fish in the Gulf of California written by Steven William Strand and published by . This book was released on 1978 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Comparison of Communities on Artificial and Natural Reefs in Southern California, with Emphasis on Fish Assemblages

Author : Richard Francis Ambrose
Publisher :
ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Comparison of Communities on Artificial and Natural Reefs in Southern California, with Emphasis on Fish Assemblages by : Richard Francis Ambrose

Download or read book Comparison of Communities on Artificial and Natural Reefs in Southern California, with Emphasis on Fish Assemblages written by Richard Francis Ambrose and published by . This book was released on 1987 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Effect of Increased Vertical Profile and Hole Size on Demersal Finfish Recrutment and Retention on Artificial Reef Structures

Author : G. Todd Kellison
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (345 download)

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Book Synopsis The Effect of Increased Vertical Profile and Hole Size on Demersal Finfish Recrutment and Retention on Artificial Reef Structures by : G. Todd Kellison

Download or read book The Effect of Increased Vertical Profile and Hole Size on Demersal Finfish Recrutment and Retention on Artificial Reef Structures written by G. Todd Kellison and published by . This book was released on 1995 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effects of Vertical Structure on Inshore Artificial Reef Fish and Macroinvertebrate Communities

Author : Jason Allan Garwood
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.:/5 (26 download)

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Book Synopsis Effects of Vertical Structure on Inshore Artificial Reef Fish and Macroinvertebrate Communities by : Jason Allan Garwood

Download or read book Effects of Vertical Structure on Inshore Artificial Reef Fish and Macroinvertebrate Communities written by Jason Allan Garwood and published by . This book was released on 2006 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Estimating Reef Fish Reproductive Productivity on Artificial and Natural Reefs Off the Atlantic Coast of the Southeastern United States

Download Estimating Reef Fish Reproductive Productivity on Artificial and Natural Reefs Off the Atlantic Coast of the Southeastern United States PDF Online Free

Author : Bryan Lawrence Danson
Publisher :
ISBN 13 :
Total Pages : 85 pages
Book Rating : 4.:/5 (719 download)

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Book Synopsis Estimating Reef Fish Reproductive Productivity on Artificial and Natural Reefs Off the Atlantic Coast of the Southeastern United States by : Bryan Lawrence Danson

Download or read book Estimating Reef Fish Reproductive Productivity on Artificial and Natural Reefs Off the Atlantic Coast of the Southeastern United States written by Bryan Lawrence Danson and published by . This book was released on 2009 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial reefs (ARs) are generally designed to increase habitat for reef fishes, especially economically important species [e.g., black sea bass (BSB; Centropristis striata)]. The three principle goals of ARs are to create reef habitat to reduce fishing pressure on natural reefs, to enhance production of reef fish species, and to provide habitat in areas that increase the convenience or efficiency of harvesting reef-associated species. No known research has attempted to assess the enhancement of reproductive productivity of reef fishes on ARs off the southeastern Atlantic coast. The present study first attempted to document spawning on four South Carolina (SC) ARs from 2008-2009 via histology in four abundant reef fishes: BSB, gray triggerfish (Balistes capriscus), red porgy (RP; Pagrus pagrus), and vermilion snapper (Rhomboplites aurorubens). The present study then investigated the reproductive production of BSB on two ARs and one natural reef (NR) off Charleston, SC, by estimating potential annual fecundity (PAF) m−2 in the spring of 2009. An equation relating fecundity to standard length (SL) was applied to estimates of density and length to estimate PAF m−2. The BSB fecundity assessment was conducted on fish collected by the MARMAP program at SC-NR from 2000-2009. Density estimations were collected through underwater 360-degree point count videos. Length estimates were obtained from fish collected via hook-and-line sampling on the ARs to document spawning. Spawning was documented on the ARs in RP and BSB. Black sea bass was found to exhibit indeterminate fecundity, spawning frequency was re-calculated, and batch fecundity was significantly related to fish length and weight. Potential annual fecundity m−2 was 2.5-fold to four-fold greater on the ARs than on the NR, owing to the greater density and greater mean SL of BSB on the ARs compared to the NR. The methods provided here allow the comparison of reproductive productivity in fishes between ARs and NRs for the purpose of evaluating ARs as tools to enhance production.

Characterization of Deep Reef Habitat Off the Southeastern U.S., with Particular Emphasis on Discovery, Exploration and Description of Reef Fish Spawning Sites

Download Characterization of Deep Reef Habitat Off the Southeastern U.S., with Particular Emphasis on Discovery, Exploration and Description of Reef Fish Spawning Sites PDF Online Free

Author : George R. Sedberry
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (864 download)

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Book Synopsis Characterization of Deep Reef Habitat Off the Southeastern U.S., with Particular Emphasis on Discovery, Exploration and Description of Reef Fish Spawning Sites by : George R. Sedberry

Download or read book Characterization of Deep Reef Habitat Off the Southeastern U.S., with Particular Emphasis on Discovery, Exploration and Description of Reef Fish Spawning Sites written by George R. Sedberry and published by . This book was released on 2004 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This project included a multi-disciplinary study to describe faunas and features of deep reef habitats and spawning sites, including sites being considered for MPA designation. Baseline geological descriptions and detailed studies of demersal fishes, benthic infauna and selected epifaunal groups were conducted. The objective was to assess the distribution and composition of soft and hard substrates and their associated invertebrate and fish faunas at shelf-edge and upper-slope reefs"--P. 3.