Aquatic Ecology最新文献

{"title":"Effects of discarded garbage bags on intertidal free living nematode community","authors":"Mehrshad Taheri,&nbsp;Maryam Yazdani Foshtomi,&nbsp;Mohammad Ali Hamzeh,&nbsp;Ahmad Manbohi,&nbsp;Reza Rahnama Haratbar","doi":"10.1007/s10452-024-10109-2","DOIUrl":"10.1007/s10452-024-10109-2","url":null,"abstract":"<div><p>Single-use plastic litter is the main component of marine litter worldwide. In the present study, the impact of discarded single-use garbage bags is experimentally evaluated on density, diversity, community structure and vertical distribution of the upper intertidal free living nematode community. Our results showed that the presence of garbage bags on intertidal sediment sharply decreased total and vertical nematode densities and diversity indices as well as decreased sediment oxygen redox potential, and altered total and vertical nematode communities. However, covering sediment with garbage bags did not result in complete nematode mortality. At the end of the experiment, epigrowth feeders and facultative predator nematodes disappeared and the community was dominated by deposit feeder genera. Considering that single-use plastic litter is in intertidal ecosystems, any change in the density and biomass of benthic fauna could lead to a decrease in benthic secondary production and food shortage for their predators.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"853 - 863"},"PeriodicalIF":1.7,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141121821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Habitat characteristics and anthropogenic activities influence the distribution of macroinvertebrate traits and ecological preferences in Nigerian streams: a case study of Osun State, Nigeria","authors":"O. T. Akinpelu,&nbsp;F. O. Arimoro,&nbsp;A. V. Ayanwale,&nbsp;V. I. Chukwuemeka,&nbsp;T. A. Oladeji,&nbsp;E. O. Akindele","doi":"10.1007/s10452-024-10108-3","DOIUrl":"10.1007/s10452-024-10108-3","url":null,"abstract":"<div><p>Impact of habitat characteristics and anthropogenic activities on the distribution of macroinvertebrate traits and ecological preferences was assessed in Osun State, Nigerian. Physicochemical parameters involving water depth (WD), channel width (CW), flow rate, discharge, water temperature (W.T), dissolved oxygen (DO), total dissolved solids (TDS), electrical conductivity (EC), pH, biological oxygen demand (BOD), turbidity, nitrate, phosphate and organic matter (OM), were appraised, alongside macroinvertebrates from 5 streams in different geographical locations. Sampling spanned from December 2019 to October 2021, covering early and late dry seasons, as well as early and late rainy seasons. Principal component analysis classified the sites into three impact categories: least impacted (LIS), moderately impacted (MIS), and highly impacted (HIS). Nine traits and ecological preferences displayed significant variations alongside nine physicochemical variables, such as phosphate, OM, WD, discharge, CW, TDS, EC, W.T, and nitrate, within the Fourth-corner figure. Furthermore, these traits and ecological preferences exhibited notable correlations with site impact categories, including–no turbidity preference, spherical body shape, climbers to LIS, preference for transparent water, crawlers, climbers, burrowers, small body size to MIS, and highly tolerant to ocxygen depletion to MIS.This study underscores the effectiveness of macroinvertebrate trait-based approach as a freshwater biomonitoring tool in Osun State, Nigeria, providing essential insights into how environmental factors influence macroinvertebrate traits in lotic systems in the region, with implications not only locally but also for broader eclogical studies.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"833 - 852"},"PeriodicalIF":1.7,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140965739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preliminary assessment of river ecosystem services in the volcanic area of Mount Merapi, Indonesia","authors":"Sunardi Sunardi,&nbsp;Moh. Dede,&nbsp;Sandy Budi Wibowo,&nbsp;Yudo Prasetyo,&nbsp;Annisa Joviani Astari,&nbsp;Lukman Lukman,&nbsp;Franck Lavigne,&nbsp;Christopher Gomez,&nbsp;Idea Wening Nurani,&nbsp;Yuichi Sakai,&nbsp;Mohd Khairul Amri Kamarudin","doi":"10.1007/s10452-024-10107-4","DOIUrl":"10.1007/s10452-024-10107-4","url":null,"abstract":"<div><p>River ecosystem services (RES) are vulnerable to landscape changes mainly by volcanic eruptions. Therefore, this study aims to assess RES in the volcanic area which was affected by the major and minor eruptions of Mount Merapi, Indonesia. The RES referred to the regulating and supporting services of the Krasak River in Jogjakarta. The research involved collecting water and biodiversity samples from two distinct Merapi’s hazard zones (KRB I and KRB II) along the river. Parameters related to regulating services, such as particulate, organic, and nutrient purification, biological control, as well as supporting services like primary productivity, were quantified. We conducted an analysis to understand how landscape conditions interacted with these parameters and employed the <i>t</i>-test to assess differences in RES between the two KRBs. Our findings revealed that the Krasak River exhibited a range of values, including 2.40–5.95 mg/l for Biological Oxygen Demand (BOD), 0.61–3.41 mg/l for nitrate, 0.02–0.11 mg/l for phosphate, 160–60,000 MPN/100 ml for coliform, and 156.3–937 µg/l for chlorophyll-A. These values demonstrated the river’s capacity to perform both regulation and support services. However, certain segments showed variations in ecosystem services, possibly due to the presence of autochthonous matter from aquatic organisms and decomposing organic matters. This showed that volcanic eruption and landscape are closely linked with the water quality and aquatic biodiversity, which affect the ecosystem services.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"819 - 832"},"PeriodicalIF":1.7,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-024-10107-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140968355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seasonal variation of limnological parameters and phytoplankton dynamics in the high-altitude oligotrophic lakes of Tawang district, Arunachal Pradesh (India)","authors":"Dhoni Bushi,&nbsp;Gibji Nimasow","doi":"10.1007/s10452-024-10106-5","DOIUrl":"10.1007/s10452-024-10106-5","url":null,"abstract":"<div><p>Seasonal variations of limnological parameters and phytoplankton dynamics in high-altitude oligotrophic lakes form a critical area of interest in assessing the implications and impact of climate change on fragile ecosystems and formulating effective conservation strategies. Thus, a study was conducted by sampling water from five High-Altitude Lakes (HALs) of Tawang district, Arunachal Pradesh between December 2019 and December 2021. The seasonal variations of seven physico-chemical parameters and phytoplankton's composition, distribution, and seasonal abundance were assessed. Further, the diversity, dominance, and evenness of phytoplankton were estimated and the relationship between limnological parameters and the phytoplankton species was established using Canonical Correspondence Analysis (CCA). The limnological parameters such as pH, dissolved oxygen, free carbon dioxide (FCO₂), alkalinity, hardness, conductivity, and total dissolved solids (TDS) show significant seasonal variations among the HALs. A total of 50 phytoplankton species belonging to 8 Class and 33 Family were recorded. The order of phytoplankton dominance was Bacillariophyceae &gt; Cyanophyceae &gt; Zygnematophyceae &gt; Chlorophyceae &gt; Chrysophyceae = Dinophyceae, Euglenophyceae = Klebsormidiophyceae. The most abundant species were <i>Cymbella</i> sp., <i>Gomphonema</i> sp., <i>Fragilaria</i> sp., <i>Navicula</i> sp., <i>Nitzchia</i> sp. (Bacillariophyceae), <i>Volvox</i> sp., <i>Pediastrum</i> sp., <i>Microspora</i> sp. (Chlorophyceae), <i>Oscillatoria</i> sp., <i>Lyngbya</i> sp., <i>Calothrix</i> sp., <i>Chroococcus</i> sp. (Cyanophyceae), <i>Spirogyra</i> sp., <i>Mougeotia scalaris</i>, <i>Cosmarium</i> sp., <i>Closterium</i> sp. (Zygnematophyceae). The abundance of phytoplankton species varied seasonally with most copious in winter. The distribution, abundance, and diversity of phytoplankton were largely influenced by pH, hardness, FCO₂, conductivity, and TDS levels. So, the findings of the study could be helpful in exploring the potentialities of introducing cold-water fisheries in HALs to ensure food security under climate change scenarios.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"801 - 818"},"PeriodicalIF":1.7,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140970974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Salinity sensitivity of Moina macrocopa post-diapause females hatched from resting eggs of different ages","authors":"Tatiana Lopatina,&nbsp;Natalia Oskina,&nbsp;Egor Zadereev","doi":"10.1007/s10452-024-10110-9","DOIUrl":"10.1007/s10452-024-10110-9","url":null,"abstract":"<div><p>Worldwide freshwater salinization may significantly alter ecosystem functioning and affect biodiversity. We studied the effect of salinity on hatching success of resting eggs of different ages and life history traits of post-diapause females of cladoceran <i>Moina macrocopa</i>. The hatching success of resting eggs was almost unaffected by the salinity we tested (up to 5.9 g L⁻¹). We observed a distinct difference in the hatching success of resting eggs of different ages, which was lower by ca. 50% for 4-year-old resting eggs compared with 1-year-old resting eggs. We found a decrease in the values of the life-history traits of the females hatched from 4-year-old resting eggs compared with the females hatched from 1-year-old resting eggs exposed to salinity within the range of 0.08–3.5 g L⁻¹: a shorter lifespan, a lower juvenile somatic growth rate, a delay in the day of the first reproduction, and a smaller number of parthenogenetic clutches produced. Analysis showed that at a salinity of 3.5 g L⁻¹, females hatched from resting eggs are more vulnerable to the effect of salinity than directly developing females. The post-diapause females exposed to salinity showed a shorter lifespan and reduced reproduction parameters (produced fewer clutches and neonates) compared with the directly developing females. Thus, the hatching of resting eggs can be considered as a critical period of the development of a species with the diapause in its life cycle due to the vulnerability of post-diapause females to increased salinity, which can be crucially important for the ecological success of the population.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"865 - 877"},"PeriodicalIF":1.7,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140941721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Growth dynamics and lipid metabolism of Aurantiochytrium sp.: insights into its potential applications","authors":"Zahra Shafaghat,&nbsp;Farzaneh Najafi,&nbsp;Ramazan-Ali Khavari-Nejad,&nbsp;Mehdi Mohammadi,&nbsp;Sattar Tahmasebi Enferadi","doi":"10.1007/s10452-024-10105-6","DOIUrl":"10.1007/s10452-024-10105-6","url":null,"abstract":"<div><p><i>Aurantiochytrium</i> sp. is a marine microalga known for its bioactive compounds. This study assessed its presence in Iran and investigated its specific biochemical and molecular traits. Parameters such as biomass, protein content, hydrogen peroxide (H₂O₂) and malondialdehyde (MDA) levels, catalase enzyme (CAT) activity, and expression of malic enzyme (ME) and acetyl-CoA carboxylase (ACCase) genes were analyzed at different growth stages (24, 48, 72, and 96 h). Fatty acid composition, unsaturated fatty acids (UFA) and saturated fatty acids (SFA) contents, and the ratio of UFA to SFA were also examined. Molecular identification confirmed successful proliferation, with significant increases in biomass and protein content during growth. Elevated H₂O₂ and MDA levels indicated oxidative stress, whereas enhanced CAT activity suggested its potential role in scavenging reactive oxygen species and mitigating oxidative damage. The upregulation of <i>ME</i> and <i>ACCase</i> genes during growth indicated their involvement in lipid biosynthesis. This was further supported by the analysis of fatty acid composition, which revealed a higher proportion of UFA than SFA. These findings underscore the importance of specific growth stages for optimizing cultivation conditions and maximizing bioactive compound production in <i>Aurantiochytrium</i> sp. Overall, this study provides valuable insights into the growth dynamics and lipid metabolism of <i>Aurantiochytrium</i> sp., contributing to our understanding of its potential applications.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"789 - 799"},"PeriodicalIF":1.7,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140935966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of salinization on benthic macro-crustacean assemblages in a Mediterranean shallow lake","authors":"Krešimir Žganec,&nbsp;C. Brannon Andersen,&nbsp;Jasna Lajtner","doi":"10.1007/s10452-024-10099-1","DOIUrl":"10.1007/s10452-024-10099-1","url":null,"abstract":"<div><p>The shallow Vrana Lake in Dalmatia, Croatia, is directly connected to the Adriatic Sea by the Prosika canal (0.85 km), constructed in the eighteenth century. The aim of this research was to examine the impacts of salinization on long-term changes in littoral macro-crustacean (Malacostraca) populations and assemblages in Vrana Lake and connecting canals. Benthic macroinvertebrates were sampled at seven sites during the period 2011–2020 (14 months) using a hand net (25 × 25 cm, 500 µm). During the study period, saltwater intrusions (strongest in 2012) through the Prosika Canal and site V4 caused increased salinization, resulting in a shift from normal oligohaline (0.5–5 PSU) to mesohaline (5–18 PSU) salinity. Out of a total of 18 macro-crustacean taxa identified, five widespread species—amphipods <i>Echinogammarus stocki</i> and <i>Gammarus aequicauda</i>, isopods <i>Lekanesphaera hookeri</i> and <i>Proasellus coxalis</i>, and decapod <i>Palaemon antennarius</i> constituted 91.6% of collected specimens (26,986). The first three brackish/marine species were significantly positively correlated with the average salinity 12 and 24 months before sampling. They disappeared or had very low abundance during the second low salinity phase (&lt; 1–2 PSU), when freshwater/oligohaline <i>P. coxalis</i> and <i>P. antennarius</i> were the dominant macro-crustaceans. Two  years of low salinity were needed for a strong population decline or disappearance of three brackish/marine species. Salinization is a major stressor in the Vrana Lake basin, and measures for its active control are urgently needed. The use of tested macro-crustacean metrics is recommended for future ecological monitoring as it could provide fast information about the effects of water management on aquatic biodiversity.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"689 - 706"},"PeriodicalIF":1.7,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Variation in thermal trait and plankton assemblage pattern induced by coal power plant discharge in river Ganga","authors":"Basanta Kumar Das,&nbsp;Dhruba Jyoti Sarkar,&nbsp;Pranab Gogoi,&nbsp;Saurav Kumar Nandy,&nbsp;Arghya Kunui,&nbsp;Manisha Bhor,&nbsp;Amiya Kumar Sahoo","doi":"10.1007/s10452-024-10103-8","DOIUrl":"10.1007/s10452-024-10103-8","url":null,"abstract":"<div><p>Thermal pollution in the riverine resources is an important issue due to its potential threat concern towards aquatic organisms. Though the thermal pollution effect on the planktonic community is well studied in the coastal thermal plant, little is available in freshwater stretches of river ecosystems. The goal of the current study was to ascertain the impact of thermal discharge from a coal-fired power station on the planktonic population and water quality along the spatial and temporal dimensions of a tropical river Ganga River. Thermal discharge led to a thermal gradient with an increase in water temperature in the river near the discharge point. The effect of temperature elevation was more profound in winter than the summer. The results showed that the dissolved oxygen and chlorophyll content was lower (1.46 and 1.34 times, respectively) near the thermal discharge point particularly in the winter as compared to summer. A total of 28 phytoplankton genera from 9 classes were identified among which 5 and 3 genera are dominated in winter and summer, respectively. The thermal discharge resulted in 1.34 times reduced chlorophyll content at the source in the winter, whereas no effect was observed in the summer. However, the diversity and abundance of plankton were found to be more closely connected to seasonal variation than to the thermal gradient. This study inferred that the plankton assemblage pattern at the thermal discharge point in the tropical river was more influenced by seasonal variation than the thermal discharge. Further studies are required on other aquatic biota for a comprehensive understanding of the effect of thermal pollution on river health status.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"759 - 773"},"PeriodicalIF":1.7,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Culex quinquefasciatus mosquito avoids ovipositing in habitats with the annual fish (Nothobranchius neumanni) in Tanzania","authors":"Gordian Rocky Mataba,&nbsp;Linus Munishi,&nbsp;Luc Brendonck,&nbsp;Bram Vanschoenwinkel","doi":"10.1007/s10452-024-10104-7","DOIUrl":"10.1007/s10452-024-10104-7","url":null,"abstract":"<div><p>Mosquitoes are known to choose oviposition habitats actively based on their suitability for survival of their offspring. They thus avoid laying eggs in dangerous habitats with aquatic predators through detection of their cues. Visual, tactile, and chemical cues emitted by certain predators have been shown to reduce oviposition in some mosquitoes, which in turn may affect their adult population sizes. However, those tests tend to be limited to species from temperate regions. Moreover, mosquito oviposition response to predator cues have been shown to be predator specific, but this has not been investigated for many potential predators worldwide. In the African subtropics, temporary ponds can be important mosquito breeding habitats and the same habitats are also used by a group of specialized killifish that can survive dry periods using drought resistant eggs. Although they are reported as mosquito predators, it is unknown whether mosquitoes actively avoid laying eggs in ponds with annual killifish. We investigated this using the mosquito <i>Culex quinquefasciatus</i> and the free and caged killifish <i>Nothobranchius neumanni</i> in the outdoor mesocosm experiments in Tanzania. We found that <i>Cx. quinquefasciatus</i> had 71% lower oviposition in mesocosms with free swimming killifish and 68% lower oviposition in mesocosms with caged killifish. We conclude that predator-released chemical cues alone are enough to explain the observed responses. If the cues can be isolated and chemically identified can be developed into a biological mosquito control strategy and used to safeguard public health in areas where mosquito borne diseases are endemic.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"775 - 787"},"PeriodicalIF":1.7,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seagrass cover and associated macrobenthic marine invertebrates in Southern Philippines","authors":"Dan Arriesgado,&nbsp;Elgen Arriesgado,&nbsp;Elnor Roa,&nbsp;Aida Perpetua,&nbsp;Ruby Gonzales,&nbsp;Rodrigo Acuña,&nbsp;Rustan Eballe,&nbsp;Delyn Bucay,&nbsp;Mayenne Balaba,&nbsp;Lyndon Roa,&nbsp;Bopp Benjack Janolino,&nbsp;Richard Muallil,&nbsp;Julius Mingoc,&nbsp;Marnelle Sornito","doi":"10.1007/s10452-024-10095-5","DOIUrl":"10.1007/s10452-024-10095-5","url":null,"abstract":"<div><p>In Southern Philippines where coastal research is scarce and hindered by safety and security concerns, the present study on seagrass assessment and its associated macroinvertebrates is imperative for resource conservation and management. The study was conducted in 19 seagrass sites across 18 coastal municipalities spanning the seagrass beds in the Southern Philippines. The results identified eight seagrasses with <i>Thalassia hemprichii, Enhalus acoroides</i>, and <i>Cymodocea rotundata</i> as the most frequent species. Seagrass cover ranged from 26.50 (fair) to 91.30% (very good conditions), highest in Sitangkai and lowest in Tubig Indangan, Simunul. In six sites, the seagrass was below good quality (fair). Forty-eight (48) macroinvertebrate species, represented by five phyla, were recorded in the seagrass sites. The highest total number of species is the Mollusks (26). The sea urchin <i>Diadema setosum</i> was the species with the highest density (0.1327 ind/m²), while the prevalence of commercial-important species was observed, like conch shells (<i>Canarium, Strombus, Lambis</i>). Thirteen sites are recorded with high macroinvertebrate diversity values (&gt; 2). Tubig Indangan, Simunul had the highest dominance value, which is attributed to the high density of <i>Trepneustes gratilla.</i> The loss of seagrass habitat would equate to great economic losses through the risk of their different ecological and economic functions. This study provides novel baseline information about the status of the tropical seagrasses in Southern Philipines and the region of Mindanao, as well as the invertebrate communities they host, which is essential to establishing adequate management practices.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"58 3","pages":"643 - 657"},"PeriodicalIF":1.7,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140810443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}