Segara Anakan Lagoon Research Articles

STAKEHOLDERS ANALYSIS OF MANGROVE ECOSYSTEM MANAGEMENT IN SEGARA ANAKAN LAGOON, CILACAP

The mangrove ecosystems are one type of coastal ecosystem found along coastlines and river estuaries that are influenced by tides and inundation. Segara Anakan Lagoon, Cilacap as one type of coastal ecosystem has a protection function, coastal area buffer, and cultivation area function that must be supported from the aspects of policy and institutions, communication, and coordination. This study aims to identify the role of stakeholders and the relationship between stakeholders in mangrove ecosystem management in Segara Anakan Lagoon, Cilacap. The research method used was a survey and interview method analyzed with MACTOR software. The results showed that there were 18 stakeholders who involved in mangrove ecosystem management in Segara Anakan Lagoon, Cilacap. The stakeholders are classified into main stakeholders, key stakeholders, and supporting stakeholders using the objective of mangrove management as key activities such as silvofishery, mangrove conservation, fishing activity, industry activity, etc. The level of convergence between stakeholders was 96.1% and the level of divergence was 3.9%. These results indicate a relatively low potential for conflict between stakeholders. The research can be used as a model relation between stakeholders to support the management activity of Segara Anakan Lagoon.

Spatial Distribution Of Heavy Metals Cd And Cu In Water, Sediment And Fish (Mugil Sp) In Pelawangan East Segara Anakan Cilacap

Heavy metals are widely known pollutants with bioaccumulative nature, so they can be transferred and accumulated in biota, such as mullet fish (Planiliza subviridis). The heavy metals Cd and Cu have different anthropogenic and natural sources. Heavy metals have the potential to absorb existing biota such mullet fish. Fish absorb metals from the water in the body through gills, skin surface and food. This study aims to identify Cd and Cu metals in distribute water, sediment and mullet fish in the Plawangan Timur, Segara Anakan lagoon, Cilacap, Central Java, and the relationship between aquatic media and sediment and mullet fish. The study used a research method with a targeted random sampling method at five stations with four replications. The survey was conducted from April to September 2020. Descriptive data analysis, F-test, regression and correlation. The results showed in water, sediment and mullet fish the heavy metal content of Cd and Cu varied between stations. The correlation between the Cd and Cu metals in water, sediment and mullet fish showed a positive correlation. The content of heavy metal Cd in mullet fish media in Plawangan Timur Segara Anakan Cilacap has exceeded the specified quality standard, while for heavy metal Cu in mullet fish is still below the specified quality standard.

Enhanced mangrove index: A spectral index for discrimination understorey, nypa, and mangrove trees

Unsupervised classification using vegetation indices has been extensively employed to map mangrove forests using medium-resolution satellite images. However, its capability is restricted to determining the extent of mangroves only. This study introduces a new spectral index called the enhanced mangrove index (EMI) for accurately mapping different components of mangrove vegetation, including mangrove trees, nypa, and understorey. An immediate effort is required to monitor the invasion of nypa and understorey in the mangrove forest of Segara Anakan Lagoon, located in Central Java, Indonesia. This issue may also be prevalent in other mangrove areas worldwide. The development of EMI involved: 1). the analysis of the reflectance exhibited by different types of mangrove vegetation, and 2). The performance of EMI was evaluated by comparing it with spectral indices such as automated mangrove map and index (AMMI), as well as supervised classification models like random forest (RF). The accuracy assessment indicates that the overall accuracy and Kappa coefficient achieved values of 0.87 and 0.84, respectively, surpassing other spectral indices and supervised classification models. AMMI and RF exhibited high overall accuracy, with values of 0.82 and 0.73, respectively. Additionally, they demonstrated a Kappa coefficient of 0.77 and 0.66, respectively.

Mangrove density and delta formation in Segara Anakan Lagoon as an impact of the riverine sedimentation rate

Abstract. Cahyo TN, Hartoko A, Muskananfola MR, Haeruddin, Hilmi E. 2024. Mangrove density and delta formation in Segara Anakan Lagoon as an impact of the riverine sedimentation rate. Biodiversitas 25: 1276-1285. Segara Anakan Lagoon (SAL) is in Southwestern of Central Java Province, Indonesia. The Western Part of SAL (WP-SAL) gets its sediment load from the Citanduy River. This research aimed to determine the temporal pattern of the shoreline, water body area, depth, delta formation, and mangrove density at WP-SAL. Shoreline data were extracted from a base map and the satellite imagery. Overlapping analysis of several shorelines and depth maps showed different results in terms of values or patterns. The western part of SAL had silted up and reached more than 85% in 161 years. The sediment accretion impacted the shoreline (between 177 ha yr-1 in 1999-2003), and the average decrease of the water bodies speed was 61 ha yr-1. The Pelawangan Barat waters (PBW) and the main lagoon had a decreasing depth because of the sediment deposits. The sedimentation also greatly impacts mangrove species distribution, clustering and association, and density and mangrove affinity. Mangrove density growth-based and the delta formation were formed and developed following the tidal pattern during floods and ebbs. It can be used to predict the future morphology of WP-SAL. The WP-SAL will be sediment filled and left the waterways channels, it was reached within 13.6 years from 2018, which would be in 2032.

Community-Based blue economy development in Mangrove Ecosystems (Case study in the Segara Anakan Lagoon, Cilacap Regency)

This study aims to examine the direction of blue economy development in the Segara Anakan Lagoon, Cilacap Regency. This research uses descriptive qualitative method with SWOT analysis. The sampling technique used in this research is purposive sampling technique. Data collection techniques used were field observations, in-depth interviews, documentation, and literature study. This study adopted Miles and Huberman’s data collection which consisted of three activities, namely data reduction, presentation, and drawing conclusions/verification. The results showed that there were 6 villages and/or sub-districts which were the research locations because they were located in the Segara Anakan Lagoon area, namely: Kutawaru Sub-District, Tritih Kulon Sub-District, Klaces Sub-District, Ujung Gagak Sub-District, Ujung Alang Village and Panikel Village. Some of the blue economy activities carried out by the community without destroying the mangrove ecosystem in its development are 8 strength factors, 11 weakness factors, 7 opportunity factors and 9 threat factors.

Water Quality and Pollution Level in Plawangan Barat, Segara Anakan, Cilacap Based on Pollution Index Approach

Segara Anakan is a lagoon located in Cilacap, Central Java. It is characterized as a fragile ecosystem that is very susceptible to the impacts of alterations and land development. This region is susceptible to habitat degradation caused by human activity, resulting in alterations in water quality and pollution. The objective of this study was to provide a comprehensive description of water quality by analysing its physical and chemical properties. Additionally, the study intended to assess the level of water pollution by employing the Nemerow Sumitomo Pollution Index (PI) approach. The water quality sampling was conducted in the western region of Segara Anakan, namely Plawangan Barat. The obtained data were compared to the established standard quality for marine organisms, as outlined in the PP RI No. 22/2021. The classification of the water pollution level was determined according to Minister of Environment Decree No. 115/2003. The findings of this study indicate that the parameters of temperature, salinity, pH, dissolved oxygen (DO), and biological oxygen demand (BOD) in the water remain suitable for marine life throughout all study stations. However, it was observed that the levels of Total Suspended Solid (TSS), phosphate, and nitrate did not match the established safety thresholds. The pollution index indicated that the water quality in West Plawangan shows varying pollution levels, ranging from light to moderate pollution. Based on the findings obtained, it can be concluded that the Segara Anakan lagoon exhibits a diminished level of suitability for the life of marine organisms.Keywords: Water Quality, Index PI, Nemerow Sumitomo, Plawangan Barat, Marine Pollution

Peningkatan Pemahaman Masyarakat dalam Membangun Konservasi Mangrove di Segara Anakan Cilacap

Communities in the Segara Anakan Lagoon area of Cilacap still do not firmly understand the services of mangrove ecosystems and the impacts that will occur due to the loss and destruction of mangrove ecosystems for people's lives, the sustainability of community economic activities, and the existence of habitat organisms in Segara Anakan. For this reason, it is necessary to conduct socialisation activities on the importance of mangrove ecosystems to maintain their ecosystem services through mangrove conservation activities. This activity was attended by fishermen, stakeholders, boat drivers, kerrang collectors, pond farmers, nipah craftsmen, nifah sugar makers, and so on. The socialisation resulted in an increased understanding of the importance of mangroves, mangrove ecosystem services, and the impacts that will occur if mangroves are damaged. For this reason, the community is also willing to conserve and rehabilitate mangrove ecosystems in Segara Anakan.

Mangrove forest encroachment by Nypa frutican, Derris trifoliata, and Acanthus spp. in Segara Anakan Lagoon

Based on phytosociological methods and land cover change analysis, previous studies in Segara Anakan Lagoon (SAL) indicated the spreading of mangrove species living in the forest margin ecotone into the forest interior, encroaching the other mangrove communities. This current study aims to quantify the spreading pattern of those mangrove species, assess the effect of the spreading of those mangrove species to the other mangrove communities, and identify the location of the spreading pattern relative to the newly emerged islands. The spreading pattern can be demonstrated by analyzing landscape structures quantified by landscape metrics. It was done using multi-temporal mangrove maps, representing the changes in mangrove communities over four periods with a decade interval. The landscape metrics used were the aggregation index, the size of community patches, and the distance between the patches. These metrics were extracted by using landscape metrics, an R package. The changes in the metrics over time were compared namely 1990, 2000, 2010, and 2020. The results showed that the small patches of the forest margin species became more aggregated into a larger patch, while the mangrove forests became more fragmented. This condition occurred most in the west part of SAL where the new islands emerged.

Mangrove Landscaping As An Adaptation Pattern To Reduce The Impact of Climate Change in Segara Anakan Lagoon, Cilacap Regency Indonesia

Mangrove Landscaping As An Adaptation Pattern To Reduce The Impact of Climate Change in Segara Anakan Lagoon, Cilacap Regency Indonesia

Adaptive pattern of mangrove species and the mangrove landscaping in the heavy metal polluted area of Eastern Segara Anakan Lagoon, Indonesia

Abstract. Hilmi E, Prayogo NA, Junaidi T, Mahdiana A, Fikriyya N. 2023. Adaptive pattern of mangrove species and the mangrove landscaping in the heavy metal polluted area of Eastern Segara Anakan Lagoon, Indonesia. Biodiversitas 24: 2927-2937. The mangrove species have specific adaptations to exclude, accumulate, translocate, and exert heavy metal contaminants. Mangrove species' adaptation to Cadmium (Cd) and Zinc (Zn) pollution are shown by their ability to reduce the negative impact of Cd and Zn pollution. This research aimed to analyze the adaptive pattern and mangrove landscaping in Cd and Zn contaminant areas of Eastern Segara Anakan (E-SAL), Indonesia. Cd and Zn content in different tissues (stem, leaves, and root) of 15 mangrove species were analyzed using Atomic Absorption Spectrometric method. Adaptive pattern and mangrove landscaping were assessed using bioaccumulation factor (BAF) and translocation factor (TF). The results showed that the Cd accumulation varied between 0.0610-0.2300 ppm in the stem, 0.0140-0.0480 ppm in leaves, 0.1501-0.3100 ppm in roots, whereas Zn accumulation varied between 5.7781-37.3409 ppm in the stem, 2.3973-32.2859 ppm in leaves, 10.8380-35.842 ppm in roots. Relatively Cd and Zn accumulation was highest in root than other parts. BAF scores of Cd and Zn varied between 0.0111-0.1760 and 0.1936-0.9017, respectively. TF score of Cd and Zn varied between 0.0642-0.9414 and 0.3419-1.3057, respectively. Based on the adaptation pattern, the mangrove landscape showed that Avicennia marina (Forssk.) Vierh., Rhizophora mucronata Lam., and Rhizophora apiculata Blume were the best accumulator of Cd contaminants. At the same time, A. marina, R. apiculata, and X. granatum were the best accumulator of Zn contaminant. The conclusion explains that mangrove species significantly adapt to life and grow in Zn and Cd-polluted areas. Therefore, mangrove landscaping can be developed to reduce the impact of Zn and Cd pollution.

Role of Natural Food in Enhancing the Productivity of Saline Nile Tilapia in the Mangrove Ecosystem of Segara Anakan Lagoon, Brackish Water Culture

Saline Nile Tilapia, Oreochromis niloticus (Linnaeus, 1758) and Milkfish, Chanos chanos (Forskal, 1775) polyculture systems in brackish water culture require natural food to sustain their brackish water fish production. Brackish water culture of Saline Nile Tilapia is developed to improve the productivity of abandoned shrimp or crab pond. At present, there are no studies examining the potential of natural food to improve the productivity of these polyculture systems in the brackish water pond located in Tritih Kulon Village, Cilacap, Central Java. To assess the availability of this food source, the diversity and abundance of plankton in the water body were evaluated through analysis. Therefore, this study aimed to analyze plankton diversity in the water body and the relationship between plankton abundance as a natural feed and saline Nile Tilapia productivity in the brackish water polyculture. Phytoplankton and zooplankton were identified according the plankton characteristic available in the references. The results showed that 21 planktons, comprising 12 phytoplankton species and 9 zooplankton groups, were identified. In spite of low plankton diversity, however, this study proved that the plankton abundance positively supported Saline Nile tilapia productivity in the polyculture system with milkfish, as indicated by low mortality (17,5 ±8,59 %; R2= 0.825-0.908), absolute high weight gain (208.2 ± 22,5 gr; R2= 0.881-0.874), and high specific growth (2,28 ± 0.77 % day-1; R2= 0.87-0.91). The productivity of Saline Nile Tilapia in brackish water polyculture with milkfish is supported by the availability of natural food, with 5.95 to 18.50% of their gut content obtained from plankton.

Dynamic Model of Segara Anakan Mangrove Crab’s Habitat Management, Indonesia

The mangrove area in Segara Anakan lagoon (Cilacap, Central Java) is a good habitat for mangrove crabs and other mangrove biota life and growth. However, in recent years, the condition of the mangroves in the area has been degraded due to land conversion. This condition also occurs in the production of mangrove crabs in the Cilacap Regency which has decreased (2012-2017 production data). Good management efforts of the mangrove forests will also have a good impact on the growth and production of these biota in nature. This study aims to create a dynamic model of mangrove crab habitat management at Segara Anakan Lagoon in order to increase the optimization of mangrove crab production in that regency. The study method used was a dynamic systems approach that considers the relationship between crab production and the conversion of mangrove land. The results of the study showed a model of the relationship between mangrove crab production and changes in mangrove area in the Segara Anakan area with the equation: Y = 14951X − 88357 (R2 = 0.5382), with structural validation as follows: land conversion increases (rice field area) (+) and then increase the income from rice fields (+). Meanwhile, land conversion reduces mangrove area (-), reduces crab habitat function (-), reduces crab catch (-), further reduces mud crab production, and finally reduces income from mud crab production (-). The validation of the model output is the average mean error (AME) of crabs at 4.93%, while the AME of mangroves is 7.38%. This model can be concluded as a valid (acceptable) model and can be continued to the simulation stage.

DNA barcoding of crustacean larvae with two new records of Caridina gracilipes and Ptychognathus altimanus in the Western Region of Segara Anakan lagoon in Indonesia

Abstract. Winarni ET, Simanjuntak SBI, Nuryanto A. 2023. DNA barcoding of crustacean larvae with two new records of Caridina gracilipes and Ptychognathus altimanus in the Western Region of Segara Anakan lagoon in Indonesia. Biodiversitas 24: 341-348. Several studies have been carried out on crustacean larvae diversity, but they focused on the eastern and central regions of the Segara Anakan lagoon/estuary, Cilacap District, Central Java Province, Indonesia. Furthermore, one study has explored crustaceans in the western region but focused on adult individuals and used morphological characteristics. Currently, there is no internet data on the crustacean larvae diversity from the estuary's western region, and there is a high possibility that some species are unidentified. This study aims to describe crustacean larvae diversity in the western region of the Segara Anakan lagoon in Indonesia by using DNA barcoding. Sequence divergence of 3% to databases in GenBank and BOLDsystems was used as a genetic threshold for species border. A total of 14 morphotypes were barcoded, but only nine were successful, of which three were identified as bacteria and six as crustaceans. Based on the predetermined genetic threshold, all crustacean morphotypes can be identified at the species level, and six species were obtained. Meanwhile, a previous study on the adult individual only identified specimens at the genus level, and only one genus was similar to these obtained results. A total of 5 out of 6 species were new records to the western region Cilacap, while 2, namely Caridina gracilipes and Ptychognathus altimanus, are newly recorded in the Segara Anakan lagoon. These results contribute significantly to the information on crustacea larvae diversity, which is essential for sustainable management.

Ecological status of threatened mangroves Ceriops decandra and Merope angulata in mangrove ecosystem Segara Anakan Lagoon, Central Java, Indonesia

Mangrove ecosystem Segara Anakan Lagoon (SAL), is the largest mangrove ecosystem in Java that is occupied by various types of mangroves. Several studies have shown the deforestation of mangrove in SAL which caused the decrease of mangrove biodiversity and species density. This study aims to obtain updated information on the distribution and density of two mangrove species found in SAL that are listed in the IUCN, which are Ceriops decandra (Threatened) and Merope angulata (Least Concerned). This research was conducted with the stages of literature study and analysis of satellite imagery using Sentinel 2 and the NDVI equation to obtain the change of mangrove cover and density. The literature study found that C. decandra was mostly distributed in the eastern and central sites of the Lagoon, while M. angulata was distributed in the center site. According to the spatial analysis, the density of Ceriops decandra was found >0,5 while Merope angulata is distributed in the center site with a medium density categorized. The degradation of the mangrove ecosystem in 2023 was estimated to be 10.493,64 ha. The information provided in this study is expected to improve conservation and protection actions for the sustainability of the threatened mangroves species in SAL.

PROTOTYPE TEMPAT PEMROSESAN AKHIR SAMPAH (TPAS) APUNG DI DESA UJUNGALANG KECAMATAN KAMPUNGLAUT

Kampunglaut Subdistrict has a unique geographical shape resembling an archipelago, causing problems around waste management. Residents prefer to dispose of their household waste directly into the waters of the mangrove forest, thereby creating a risk of flooding during high tides and silting of the waters of the Segara Anakan lagoon. This study aims to design a prototype of the appropriate floating waste final processing site for the Kampunglaut area and measure the level of acceptance of the Kampunglaut residents towards the design of the floating waste final processing site. The research was carried out by making a prototype of the final floating waste processing site and conducting simulation tests on the Serayu River and in Lempongpucung Hamlet, Ujungalang Village, Kampunglaut District, then conducting discussions with the apparatus and residents of Ujungalang Village, Kampunglaut District, Dinas Lingkungan Hidup (DLH) of Cilacap Regency and Cilacap State Polytechnic (PNC). The Floating Final Waste Processing Site (TPAS) is made by combining a plastic bowl with a nylon net that is spaced with steinless wire and then placing a tire as a float between the plastic bowl and a nylon net. The bowl is designed to open and close using a stainless hinge then an Arduino-based ultrasonic sensor is installed on the ceiling of the bowl. To provide information on the amount of waste generated, the sensor is connected to a cellphone that has the blynk application installed using IoT technology. The response of village officials and residents of Ujungalang was very enthusiastic about the prototype of the floating final waste processing site (TPAS). The existence of the Apung TPAS motivated the residents of Ujungalang Village to immediately form a waste bank unit that will manage the waste that has been collected in the Apung TPAS.

Quantifying surface water decreasing in Segara Anakan Lagoon

Segara Anakan is the largest mangrove-fringed lagoon on the south coast of Java Island. It is a productive coastal system that provides environmental services for the community in the vicinity of the lagoon, such as fisheries production and tourism. Right now, the lagoon is facing surface water shrinking due to the intensive sedimentation process. The fishing ground area becomes limited; thus, the fisherman should sail further to the sea zone to catch fish. To quantify the lagoon’s surface water decreasing rate, we applied a spatial analysis method. Historical cartographic maps and satellite images of Segara Anakan were digitised using ArcMap. We used a reclassification tool to classify land and water for the satellite image before digitising it. The result showed that the lagoon’s surface water area decreased from 65 km2 in 1942 to 8.5 km2 in 2017. Since the lagoon received freshwater supply from Citanduy River, we applied Universal Soil Loss Equation (USLE) to calculate sediment supply from the watershed. The result showed that from 2005 to 2016, the average sediment supply reached 3 mm/year or equal to 22 million tons/year. The highest sediment supply rate occurred in 2010 at 5.14 mm/year or similar to 43 million tons/year. Linking between integrated coastal zone management with watershed management should be implemented to reduce the rate of sedimentation.

Mapping of Mangrove Ecosystem In Segara Anakan Lagoon using Normalized Different Vegetation Index and Dominant Vegetation Index

Mangrove ecosystem in Segara Anakan Lagoon (SAL) Cilacap as a typical and specific semiclosed estuary. SAL is dominated by many species like as Rhizophora spp., Sonneratia spp., Bruguiera spp., Avicennia spp., and other species. The normalized different vegetation index (NDVI) and dominant vegetation index (DVI) are a suitable method to support the mapping analysis of mangrove structure and mangrove density. This research aimed to develop mapping of mangrove species distribution, density and dominated species using NDVI and DVI. The method of this research used NDVI analysis using satellite imagery 2017-2020 and domination vegetation with line and quadrat transect method. The results showed that West Segara Anakan had mangrove dense (25 %), moderate density (25 %), rare density (50%) and East Segara Anakan had mangrove dense (43,86 %), moderate density (47.99 %), rare density (8,24 %). Based on domination species showed that East Segara Anakan was dominated by Rhizophora stylosa (233-1633 trees ha-1), Rhizophora apiculata (100-1067 trees ha-1), Nypa frutican (50-2775 trees ha-1), whereas West Segara Anakan was dominated by Nypa frutican (565-2333 trees ha-1), Avicennia marina (198-933 trees ha-1), Sonneratia caseolaris (132-700 trees ha-1) and Avicennia alba (107-1000 trees ha-1). Keywords : Mangrove density, mapping analysis, Segara Anakan Lagoon, NDVI and NDWI

COMMUNITY STRUCTURE OF BENTHIC FORAMINIFERA IN EASTERN WATERS OF SEGARA ANAK LAGOON IN CILACAP

Benthic foraminifera are types of organisms that are sensitive to environmental changes, so they are often used as a bioindicator for aquatic environmental conditions. The purpose of this study was to determine the community structure of benthic foraminifera community, sediment types and the relationship between the abundance of foraminifera with the sediment types in the eastern waters of Segara Anakan Lagoon in Cilacap. Method used in this study was a survey method. Samples were taken by using random sampling method. The study was conducted at 5 stations with 3 repetitions. Laboratory observations carried out included the types and numbers of benthic foraminifera. Community structure of foraminifera among stations were analyzed using one-way ANOVA, while the relationship between community structures and water quality parameters was analyzed using Pearson correlation. The results showed that in the the eastern waters of Segara Anakan Lagoon there were 58 species of foraminifera which abundance ranged from 532 ind/m2 to 927 ind/m2. The diversity index of foraminifera was in the medium to high diversity categories. The uniformity index of foraminifera was in the high uniformity in a stable community. The dominance index of foraminifera was in the low category. The sediment types was fine sand, medium sand and coarse sand. The relationship between the abundance of foraminifera with the sediment types was strong with high R values (0.763-0.809).

Interaksi kelimpahan makrozoobenthos dengan kondisi mangrove di Segara Anakan, Cilacap

Segara Anakan Lagoon is a unique and distinctive area where most of the ecosystem is dominated by mangrove ecosystems. Some fauna makes the ecosystem as a place for feeding ground, nursery ground and spawning ground for example macrozoobenthos. Its sessile nature makes the biota used as a bioindicator of an area. The Segara Anakan mangrove forest is currently under pressure due to the process of sedimentation and conversion of functions by residents. Therefore, this study aims to determine the interaction between the abundance of macrozoobenthos with environmental conditions. The research was carried out in July-September 2021 at the Segara Anakan Lagoon, Cilacap. The sampling method used is the Sample Survey Method with three stations determined purposively by describing different habitat conditions. Sampling was carried out on a monthly and the data obtained were analyzed by PCA. The results showed that the highest abundance of macrobenthos was found in the western part of the Segara Anakan mangrove forest. The value of macrozoobenthos abundance is influenced by TSS related to food availability. Furthermore, the quality of water and soil is still in accordance with the quality standards of marine life.Keywords: Environmental Characteristics; Macrozoobenthos; Mangrove; Segara Anakan

Interaction Of Macrozoobenthos Abudance With Environmental Conditions In Segara Anakan, Cilacap

Segara Anakan Lagoon is a unique and distinctive area where most of the ecosystem is dominated by mangrove ecosystems. Some fauna make the ecosystem as a place for feeding ground, nursery ground and spawning ground for example macrozoobenthos. Its sessile nature makes the biota used as a bioindicator of an area. The Segara Anakan mangrove forest is currently under pressure due to the process of sedimentation and conversion of functions by residents. Therefore, this study aims to determine the interaction between the abundance of macrozoobenthos with environmental conditions. The research was carried out in July-September 2021 at the Segara Anakan Lagoon, Cilacap. The sampling method used is the Sample Survey Method with three stations determined purposively by describing different habitat conditions. Sampling was carried out on a monthly and the data obtained were analyzed by PCA. The results showed that the highest abundance of macrobenthos was found in the western part of the Segara Anakan mangrove forest. The value of macrozoobenthos abundance is influenced by TSS related to food availability. Furthermore, the quality of water and soil is still in accordance with the quality standards of marine life.Keywords: Environmental Characteristics; Macrozoobenthos; Mangrove; Segara Anakan