Micro-photoautotroph predation as a driver for trophic niche specialization in 12 syntopic Indo-Pacific parrotfish species

Biological Journal of the Linnean Society, Год журнала: 2023, Номер 139(2), С. 91 - 114

Опубликована: Апрель 12, 2023

Abstract Parrotfish are key agents of bioerosion and sediment production in coral reef ecosystems; however, their dietary targets therefore potential sources variation carbonate cycling lack resolution. Here we address this knowledge shortfall our current understanding parrotfish diets by testing the concept that protein-rich micro-photoautotrophs target prey for many Scarinine parrotfishes. We focus at fine spatial scales on feeding substrata 12 syntopic Indo-Pacific species mid-shelf sites around Lizard Island, Great Barrier Reef, Australia. followed individual snorkel until biting was observed, then extracted a core each bite. The surface bite scraped to ~1 mm quantitative microscopic analysis (up 630 × magnification) 16S 18S rRNA metabarcoding. most dominant photoautotrophic group terms cover filamentous cyanobacteria, crustose coralline algae. Epiphytic, epilithic, endophytic endolithic cyanobacteria were consistent biota. Although density cores largely among species, data metabarcoding revealed distinct differences between taxonomic composition Our provide further evidence these partition resources.

Язык: Английский

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A cheap and efficient system for Spongia anclotea farming in the Bahamas

Frontiers in Marine Science, Год журнала: 2025, Номер 12

Опубликована: Март 11, 2025

Sponges are now requested for their commercial, industrial and pharmaceutical importance. This led to an increase in demand the global markets with uncontrolled excessive harvesting pressure that, together diseases outbreaks, put wild populations at risk, several habitats completely looted. Aquaculture of sponge fragments poses alternative collection since fragment regeneration is easy, cheap efficient. We chose as subject our study Spongia anclotea , common tropical Western Atlantic, due its high request on market cosmetics, body care applications. set a low-cost farm made materials, thus affordable local communities, which did not require significant maintenance. The growth survival rate 384 out 2304 randomly chosen sponges have been investigated over 4-year period. At end study, increased by average 380% ± 275% initial volume (with maximum 1480%) 87.5% survived (death detach during whole period were considered mortality). Farmed from structure resulted characterized superior quality shape compared collected individuals area and, after six years cultivation (4 present + 2 forecasted based findings), this improved could yield higher profits (618 USD vs. 547 USD, respectively, standard stock size). experimental setup can be good economic opportunity developing countries.

Язык: Английский

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Fish use of deep-sea sponge habitats evidenced by long-term high-resolution monitoring

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 23, 2025

It is critical that fish's habitat uses of benthic habitats are understood, to inform effective fisheries management and predict the impacts human activities climate change. In this study, landers were used collect long-term high-temporal resolution data gain insights into use sponge grounds by fish at Sambro Bank Conservation Area. An integrated ecosystem-based monitoring approach was used, involving collected on biology, food supply, oceanography. Fish abundance, behaviour complex benthopelagic interactions analysed over spatial extended temporal scales (i.e., 30-minute intervals from 2021–2023). A total 21 different planktivorous benthivorous taxa found utilise seafloor. We show can act as a nursery, feeding shelter for commercially important fish. In-depth analyses Redfish, urophycid hakes, Silver Hake revealed distinct diel seasonal patterns showed how food, density current speed drivers their abundance behaviour. Supported fishery trawl survey reports, ecosystem importance environmental Such information crucial developing implementing robust, evidence-based policy management.

Язык: Английский

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Fish use of deep-sea sponge habitats evidenced by long-term high-resolution monitoring

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Май 21, 2025

Abstract It is critical that fish’s habitat uses of benthic habitats are understood, to inform effective fisheries management and predict the impacts human activities climate change. In this study, landers were used collect long-term high-temporal resolution data gain insights into use sponge grounds by fish at Sambro Bank Conservation Area. An integrated ecosystem-based monitoring approach was used, involving collected on biology, food supply, oceanography. Fish abundance, behaviour complex benthopelagic interactions analysed over spatial extended temporal scales (i.e., 30-min intervals from 2021 2023). A total 21 different planktivorous benthivorous taxa found utilise seafloor. We show can act as a nursery, feeding shelter for commercially important fish. In-depth analyses Redfish, urophycid hakes, Silver Hake revealed distinct diel seasonal patterns showed how food, density current speed drivers their abundance behaviour. Supported fishery trawl survey reports, ecosystem importance environmental Such information crucial developing implementing robust, evidence-based policy management.

Язык: Английский

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Substratum selection in coral reef sponges and their interactions with other benthic organisms

Coral Reefs, Год журнала: 2023, Номер 42(2), С. 427 - 442

Опубликована: Фев. 2, 2023

Abstract Substratum preferences and contact interactions among sessile organisms can be a major determinant of biotic gradients in the structure benthic communities on coral reefs. Sponges are substantial component these communities, but their substratum requirements with other taxa poorly understood. Here, we quantified sponge from 838 randomly selected photo-quadrats across different depths (5, 10 15 m), exposure (sheltered exposed), topography (horizontal, inclined vertical surfaces) coastal reefs Kimbe Bay. A high proportion (55%) colonies were associated dead coral, unconsolidated rubble (7%) calcium carbonate rock (CaCO 3 rock) (7%), even though they represented only 10%, 4% 1% available substratum, respectively. interacted most frequently algae (~ 34%), corals 30%) crustose coralline (CCA ~ 19%) that 46%, 18% 14% cover, The microhabitat sponges frequency mostly consistent various exposure, depth conditions. Most appeared to “stand-offs” (71%) which no clear winner or loser. However, when overgrowth occurred, usually winners, overgrowing (92%), CCA (81%) macroalgae (65%). Three species Dysidea sp1, Lamellodysidea cf. chlorea accounted for 51% 96% over algae, CCA, there was one found always win lose. Our results suggest avoid biological substrata by preferentially settling CaCO rock, do come into corals, overgrow spacial competitors.

Язык: Английский

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The phylum Chloroflexi and their SAR202 clade dominate the microbiome of two marine sponges living in extreme environmental conditions

Marine Ecology, Год журнала: 2023, Номер 44(5)

Опубликована: Май 29, 2023

Abstract The capacity of marine sponges to cope with environmental changes is often attributed the specific composition their bacterial communities. In this study, we assessed microbiome two dominant sponges, Rhabdastrella globostellata (Rg) and Hyrtios erectus (He), living in Bouraké lagoon (New Caledonia), where abiotic conditions daily fluctuate according tide. Sponge specimens, sediment seawater samples were collected at 2–3 m depth. communities using 16S rRNA metabarcoding, variations between compared PCA biplots. Chloroflexi was phyla both He Rg an average relative abundance 41.2% 53.2%, respectively, while it absent seawater. Among phylum Chloroflexi, SAR202 clade reaching 53.2% (He) 78.7% (Rg). Principal component analysis (PCA) used identify main variables driving community structure sponges. results indicated that strongly associated (70.9% variance) (86.6% variance). high observed study highest reported so far literature Such a these bacteria could suggest involvement well‐being extreme Bouraké.

Язык: Английский

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Importance of complex sponges as habitat and feeding substrata for coral reef fishes

Marine Biology, Год журнала: 2024, Номер 171(8)

Опубликована: Июнь 28, 2024

Abstract Coral reef fishes are usually assumed to be most strongly associated with reef-building corals. However, sponges can a significant structural component of coral ecosystems and their framework enhance the local abundance biodiversity fish assemblages. Little is known regarding range species using complex as either shelter or feeding substrata. Here we use combination stationary video cameras focal animal sampling document positively in Kimbe Bay, Papua New Guinea. Stationary identified 45 for shelter, substrata sites ambush predation. A guild 10 individual from five families (Blenniidae, Chaetodontidae, Gobiidae, Labridae Pomacentridae) were observed quantify sponge other habitat compared availability determine level selectivity. One species, Pleurosicya elongata (the Slender Spongegoby), lived obligate association Ianthella basta (Elephant Ear sponge), there was positive relationship between size number resident fish, however this not all life stages. Five appeared preferentially select ( Amblyglyphidodon aureus , Chaetodon kleinii Coradion chrysozonus Escenius prooculis Pomacentrus nigromanus ), while others, incidental. When selectivity indices calculated specific it apparent that some exhibited preferences particular growth forms. These results suggest more may reliant on than widely appreciated.

Язык: Английский

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Exploring depth‐related patterns of sponge diversity and abundance in marginal reefs

Ecology and Evolution, Год журнала: 2024, Номер 14(7)

Опубликована: Июль 1, 2024

Abstract Marine sponges play a vital role in the reef's benthic community; however, understanding how their diversity and abundance vary with depth is major challenge, especially on marginal reefs areas deeper than 30 m. To help bridge this gap, we used underwater videos at 24 locations between 2‐ 62‐meter depths reef system Southwestern Atlantic to investigate effect of sponge metacommunity. Specifically, quantified abundance, density, taxonomic composition communities, decomposed gamma ( γ ) into alpha α beta β components. We also assessed whether was driven by species replacement (turnover) or nesting local communities (nestedness). identified 2020 marine individuals, which belong 36 genera. As expected, deep (i.e., those greater m) presented more eightfold number per square meter compared shallow areas. About 50% that occurred (<30 Contrarily expectations, rare 0 D ), typical 1 dominant 2 did not depth, but had ones, for species. Between 92.7% 95.7% given turnover both inside Our results support previous studies found density reveal sorting stronger smaller depths, generating across Because driver any entire gradient should be considered management conservation strategies.

Язык: Английский

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Ecological review of the Syllidae (Annelida) associated with sponges (Porifera), including the description of a new species from northeastern Brazil

Ocean and Coastal Research, Год журнала: 2024, Номер 72(suppl 1)

Опубликована: Янв. 1, 2024

This study reviews the data published on ecology of polychaete annelids family Syllidae associated with sponges (Porifera) and provides additional empirical from samples collected at Paiva Beach (northeastern Brazil). literature review Web Science Scopus databases, together sources information, to provide best possible overview available ecological relationships between these organisms. identified a total 76 papers reporting 68 associations syllids sponges, which involved 61 syllid species inhabiting 57 different sponge taxa. Although few studies have provided detailed auto-ecology some information is their reproductive patterns, feeding habits, role in association. In this study, seven genera were recorded genus Cinachyrella (Porifera: Tetillidae) Pernambuco, northeastern Brazil, where predominance Branchiosyllis was recorded. The found either outer surface or inner channels, most specimens females, presented stolons, indicating that they using as substrate. A new described based our data. lanai sp. nov. can be by its relatively enlarged anterior region, cirriphore collar, branchiae varying domed multilobed. compared morphologically similar congeners. synoptic table morphological variation among individuals type series also provided, well an updated key identification Brazilian coast.

Язык: Английский

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Cryptic diversification, phenotypic plasticity, and host specialization in a sponge-dwelling goby

Coral Reefs, Год журнала: 2024, Номер 43(2), С. 391 - 403

Опубликована: Фев. 22, 2024

Язык: Английский

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