Ecological interactions of marine sponges1 - FSU Biology
... of Adriatic boring sponges reflected competition. Reiswig (1973) observed adult reef sponges overgrowing recent recruits, and Sutherland (1980) reported the common mangrove sponge Tedania ignis (Duchassaing and Michelotti, 1864) overgrowing other species on recruitment panels suspended among mangrov ...
... of Adriatic boring sponges reflected competition. Reiswig (1973) observed adult reef sponges overgrowing recent recruits, and Sutherland (1980) reported the common mangrove sponge Tedania ignis (Duchassaing and Michelotti, 1864) overgrowing other species on recruitment panels suspended among mangrov ...
Full text - SFU`s Summit
... 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 (substrat ...
... 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 (substrat ...
Wulff 2012 - FSU Biology
... and biotic influences on sponges is necessary for understanding the adaptive significance of sponge traits. On an ecological timescale as well, predictions cannot be made accurately unless distinctions are made between influences of abiotic and biotic factors. As abiotic factors change, sponge distr ...
... and biotic influences on sponges is necessary for understanding the adaptive significance of sponge traits. On an ecological timescale as well, predictions cannot be made accurately unless distinctions are made between influences of abiotic and biotic factors. As abiotic factors change, sponge distr ...
Coping with the Lionfish Invasion: Can Targeted Removals Yield
... example, lionfish on experimental patch reefs reduced recruitment of native reef fishes that serve as forage for important fishery species by an average of 79% (Albins and Hixon, 2008), and lionfish reduced the total biomass of 42 prey species by 65% on 9 natural reefs (Green et al., 2012). Further ...
... example, lionfish on experimental patch reefs reduced recruitment of native reef fishes that serve as forage for important fishery species by an average of 79% (Albins and Hixon, 2008), and lionfish reduced the total biomass of 42 prey species by 65% on 9 natural reefs (Green et al., 2012). Further ...
recruitment and the local dynamics of open marine
... stages does occur among marine invertebrates that are capable of detachment or that undergo fragmentation (76), and also among some nonterritorial reef fishes (118, 119, JL Fredrick, unpublished data). Historically, fisheries studies have provided the major focus on the dynamics of marine species (3 ...
... stages does occur among marine invertebrates that are capable of detachment or that undergo fragmentation (76), and also among some nonterritorial reef fishes (118, 119, JL Fredrick, unpublished data). Historically, fisheries studies have provided the major focus on the dynamics of marine species (3 ...
determining the data needed to test the feasibility of a quota system
... (Branch 2009). Similar results were shown in New Zealand after ITQ implementation (Branch 2009). Reduced TAC could also be supported or even proposed by quota holders when they are interested in raising stock size and catch per-unit-effort (CPUE), as happened for New Zealand Paua (abalone) fishery w ...
... (Branch 2009). Similar results were shown in New Zealand after ITQ implementation (Branch 2009). Reduced TAC could also be supported or even proposed by quota holders when they are interested in raising stock size and catch per-unit-effort (CPUE), as happened for New Zealand Paua (abalone) fishery w ...
COMMENSALISM AND REPRODUCTIVE BIOLOGY OF THE
... corals themselves and also their symbionts. Climbing a small distance above the bottom provides access to higher fluxes because any decrease in suspended particle concentration is generally more than offset by the steep velocity gradient in the lowermost bottom boundary layer. There are likely furth ...
... corals themselves and also their symbionts. Climbing a small distance above the bottom provides access to higher fluxes because any decrease in suspended particle concentration is generally more than offset by the steep velocity gradient in the lowermost bottom boundary layer. There are likely furth ...
Journal of Experimental Marine Biology and Ecology 339:65
... nearly an order of magnitude. T. testudinum shoot density and belowground biomass were not affected by herbivory, but aboveground biomass and leaf surface area were higher within cages, suggesting that although herbivory influenced both seagrass species, T. testudinum was more resistant to herbivory ...
... nearly an order of magnitude. T. testudinum shoot density and belowground biomass were not affected by herbivory, but aboveground biomass and leaf surface area were higher within cages, suggesting that although herbivory influenced both seagrass species, T. testudinum was more resistant to herbivory ...
Estuarine Benthic Algae
... million years. These first algal fossil remains include stromatolites, which are structures formed in shallow tropical waters when cyanobacterial mats accrete layers by trapping, binding, and cementing sediment grains. Photosynthesis by these early primary producers was responsible for much of the ox ...
... million years. These first algal fossil remains include stromatolites, which are structures formed in shallow tropical waters when cyanobacterial mats accrete layers by trapping, binding, and cementing sediment grains. Photosynthesis by these early primary producers was responsible for much of the ox ...
BIOL 181: Life in the Oceans – Lecture Notes
... thousands of phytoplankton, and tens of thousands of zooplankton. The Great Barrier Reef alone is made of 400 species of coral and supports over 2,000 species of fish and thousands of invertebrates. 1.3.4. To Conserve the Marine Environment Each year, three times as much trash is dumped into the wor ...
... thousands of phytoplankton, and tens of thousands of zooplankton. The Great Barrier Reef alone is made of 400 species of coral and supports over 2,000 species of fish and thousands of invertebrates. 1.3.4. To Conserve the Marine Environment Each year, three times as much trash is dumped into the wor ...
Role, importance and vulnerability of top predators on the Great
... reinforces the need to verify the status of shark and other important predator populations within the Great Barrier Reef ecosystem. The Great Barrier Reef Marine Park Authority (GBRMPA) has carefully considered the Report's recommendations and will factor them, as appropriate, into its strategic pla ...
... reinforces the need to verify the status of shark and other important predator populations within the Great Barrier Reef ecosystem. The Great Barrier Reef Marine Park Authority (GBRMPA) has carefully considered the Report's recommendations and will factor them, as appropriate, into its strategic pla ...
A STUDY OF THE REEF FISH COMMUNITIES OF LAS PERLAS
... Reef fish are fish that live all their post-recruitment lives in close association with their habitat (Bellwood, 1988; Choat and Bellwood, 1991), they are specialised in morphology, colour, behaviour and life cycles and are one of the most complex and variable communities in nature (Sale, 1991). Mos ...
... Reef fish are fish that live all their post-recruitment lives in close association with their habitat (Bellwood, 1988; Choat and Bellwood, 1991), they are specialised in morphology, colour, behaviour and life cycles and are one of the most complex and variable communities in nature (Sale, 1991). Mos ...
Habitat: Oyster Reefs - Oyster Restoration Workgroup
... The historical coastal complex of South Florida was distinctly estuarine with freshwater discharging through natural channels, as sheet flow across coastal wetlands and ground water flow, as general pore seepage, and as individual artesian springs emerging from karst pipes. As a result, conditions w ...
... The historical coastal complex of South Florida was distinctly estuarine with freshwater discharging through natural channels, as sheet flow across coastal wetlands and ground water flow, as general pore seepage, and as individual artesian springs emerging from karst pipes. As a result, conditions w ...
CO # 21: Ensure that structural habitat provided by corals on the
... Trawling is the fishing method that most obviously threatens corals through direct removal as bycatch. Indirect effects of trawling include the physical alteration and removal of nonbiotic structures, such as boulders, causing loss of suitable substrate for coral colonization or recolonization by co ...
... Trawling is the fishing method that most obviously threatens corals through direct removal as bycatch. Indirect effects of trawling include the physical alteration and removal of nonbiotic structures, such as boulders, causing loss of suitable substrate for coral colonization or recolonization by co ...
Economic Valuation of Ecosystem Services Provided by Oyster Reefs
... given that it is unlikely that harvesters would be able to sustain this profit rate at low oyster densities. We reasonably assume that if they are opened to destructive harvesting, oyster sanctuaries and pristine reefs would quickly switch from producing harvests at the upper end of this range in ye ...
... given that it is unlikely that harvesters would be able to sustain this profit rate at low oyster densities. We reasonably assume that if they are opened to destructive harvesting, oyster sanctuaries and pristine reefs would quickly switch from producing harvests at the upper end of this range in ye ...
Do Lanice conchilega (sandmason) aggregations classify as reefs
... of long-lived individual reefs does not exist. As a range of aggregation development exists, ‘reeWness’ is not equal for all aggregations and a scoring table to quantify L. conchilega reeWness is presented. Keywords Lanice conchilega · Reef characteristics · ReeWness · Tube dwelling polychaete ...
... of long-lived individual reefs does not exist. As a range of aggregation development exists, ‘reeWness’ is not equal for all aggregations and a scoring table to quantify L. conchilega reeWness is presented. Keywords Lanice conchilega · Reef characteristics · ReeWness · Tube dwelling polychaete ...
algae, calcified
... in the Bahamas by a submarine at more than m water depth, making them the deepest attached benthic algae in the world. Growth bands from living corallines in Alaska’s Aleutian Islands reveal they can live to be at least years and probably well over years, making them the longest-lived a ...
... in the Bahamas by a submarine at more than m water depth, making them the deepest attached benthic algae in the world. Growth bands from living corallines in Alaska’s Aleutian Islands reveal they can live to be at least years and probably well over years, making them the longest-lived a ...
Caribbean acroporid coral hybrids are viable across life history stages
... which hybrids occur may be changing. Hybrid populations currently vary in abundance, but there is evidence (i.e. Dry Tortugas, FL; Wheaton et al. 2010) and anecdotal observations that sites throughout the Caribbean have equivalent or higher relative abundance than one or both of the parental species ...
... which hybrids occur may be changing. Hybrid populations currently vary in abundance, but there is evidence (i.e. Dry Tortugas, FL; Wheaton et al. 2010) and anecdotal observations that sites throughout the Caribbean have equivalent or higher relative abundance than one or both of the parental species ...
Great Barrier Reef Outlook Report 2014—In Brief
... Great Barrier Reef. They are important in the life cycle of some marine species and also play a role in slowing overland water flow and trapping sediments and nutrients. While not on the same scale as historic broadscale clearing, without active planning and management, incremental modification of t ...
... Great Barrier Reef. They are important in the life cycle of some marine species and also play a role in slowing overland water flow and trapping sediments and nutrients. While not on the same scale as historic broadscale clearing, without active planning and management, incremental modification of t ...
Pages 16-144 - South Atlantic Fishery Management Council
... In contrast to freshwater marshes, salt marshes have low species diversity of the higher vertebrates, but high species diversity of invertebrates, including shellfish, and fishes. Table 2 reviews examples of fishes and crustaceans common to southeastern U.S. marshes. These organisms utilize the mars ...
... In contrast to freshwater marshes, salt marshes have low species diversity of the higher vertebrates, but high species diversity of invertebrates, including shellfish, and fishes. Table 2 reviews examples of fishes and crustaceans common to southeastern U.S. marshes. These organisms utilize the mars ...
Together is Better: The Importance of
... Figure 1. Tentacle squash from temperate symbiotic sea anemone Anthopleura elegantissima at 40x power oil immersion under differential interference contrast microscope. Symbiodinium are the golden-brown circles. Although this is not the genus of sea anemone in this study, the Symbiodinium are simila ...
... Figure 1. Tentacle squash from temperate symbiotic sea anemone Anthopleura elegantissima at 40x power oil immersion under differential interference contrast microscope. Symbiodinium are the golden-brown circles. Although this is not the genus of sea anemone in this study, the Symbiodinium are simila ...
ATOLL RESEARCH BULLETIN NO. 477 SPONGE PREDATORS
... The more common species at Twin Cays appear to coincide with the more or less typical mangrove-associated sponge fauna (Table 1) described in the literature (Alcolado, 1990; Hechtel, 1965; Sutherland, 1980; Riitzler, 1969; Diaz et al., 1985) or personally observed (Galeta and San Bias, Panama). Ther ...
... The more common species at Twin Cays appear to coincide with the more or less typical mangrove-associated sponge fauna (Table 1) described in the literature (Alcolado, 1990; Hechtel, 1965; Sutherland, 1980; Riitzler, 1969; Diaz et al., 1985) or personally observed (Galeta and San Bias, Panama). Ther ...
INTERSPECIFIC AGGRESSIVE BEHAVIOR OF THE (CNIDARIA
... highly extensible (Fig. ib), and if the stimulus source was pulled away, the filaments could be stretched up to four times the diameter of the polyp to which they belonged. Extruded filaments ranged in length from 1 to 42 mm (median = 3 mm). However, most polyps extruded filaments only 1—10mm in l ...
... highly extensible (Fig. ib), and if the stimulus source was pulled away, the filaments could be stretched up to four times the diameter of the polyp to which they belonged. Extruded filaments ranged in length from 1 to 42 mm (median = 3 mm). However, most polyps extruded filaments only 1—10mm in l ...
Red Herrings - Greenpeace USA
... and removes these complex structures, including deep-sea coral reefs, and exposes juvenile fish to ...
... and removes these complex structures, including deep-sea coral reefs, and exposes juvenile fish to ...
Environmental issues with coral reefs
Human impact on coral reefs is significant. Coral reefs are dying around the world. In particular, coral mining, pollution (organic and non-organic), overfishing, blast fishing and the digging of canals and access into islands and bays are serious threats to these ecosystems. Coral reefs also face high dangers from diseases, destructive fishing practices and warming oceans. In order to find answers for these problems, researchers study the various factors that impact reefs. The list of factors is long, including the ocean's role as a carbon dioxide sink, atmospheric changes, ultraviolet light, ocean acidification, biological virus, impacts of dust storms carrying agents to far-flung reefs, pollutants, algal blooms and others. Reefs are threatened well beyond coastal areas.In 2008 estimates assembled from coral reef specialists from around the world indicated that 19% of the existing area of coral reefs has already been lost, and that a further 17% is likely to be lost over the subsequent 10–20 years. Only 46% of the world’s reefs could be currently regarded as in good health. About 60% of the world's reefs may be at risk due to destructive, human-related activities. The threat to the health of reefs is particularly strong in Southeast Asia, where 80% of reefs are endangered. By the 2030s, 90% of reefs are expected to be at risk from both human activities and climate change; by 2050, all coral reefs will be in danger.