Water quality of Sempu Strait to support the ecosystem resilience

Isdianto, Andik; Luthfi, Oktiyas Muzaky; Mostafa, Asadi; Haykal, Muchamad Fairuz; Harahab, Nuddin; Kurniawan, Andi; Wicaksono, Agus Dwi

doi:10.1088/1755-1315/797/1/012002

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Another possible cause of low coral cover comes from human activity that damages coral, such as fishing, that is not environmentally friendly, shipping, the effects of tourism, and housing activities. Water quality also influences how coral reefs live, grow, and develop, as well as the varied flora and animals that inhabit them (Isdianto et al 2021). In addition, the loss of favorite coral species could have profound effects on reef fish biodiversity, more so than declining coral cover (Komyakova et al 2018).…”

Section: The Proportion Of Coral Covermentioning

confidence: 99%

Reef fish monitoring as a coral reef resilience indicator in the Sempu Strait, South of East Java, Indonesia

BINTORO,

ISDIANTO,

HARAHAB

et al. 2023

Biodiversitas

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Abstract. Bintoro G, Isdianto A, Harahab N, Kurniawan A, Wicaksono AD, Maharditha R, Fathah AL, Putri BM, Haykal MF, Asadi MA, Setyanto A, Lelono TD, Luthfi OM, Pratiwi DC. 2023. Reef fish monitoring as a coral reef resilience indicator in the Sempu Strait, South of East Java, Indonesia. Biodiversitas 24: 4950-4959. Sempu Island is designated as a nature reserve which is surrounded by a fairly high diversity of coral reefs. Since the high activities of fishing ports near this island, the anthropogenic pressure seriously became a threat to the biodiversity of coral reefs in this nature reserve. Continuous observation of reef fish is an important activity to monitor the coral reef health condition. Since then, bimonthly monitoring using an underwater visual census has been conducted from October 2021 to May 2022. Based on these observations obtained that the average reef fish abundance was in the "low" category, namely 0.516 ind/m2 in October 2021, 0.527 ind/m2 in December 2021, 0.522 ind/m2 in February 2022, and 0.378 ind/m2 in May 2022. The abundance of reef fish obtained consisted of three categories: indicators, targets, and majors. Overall, the Pomacantridae family, from the major fish category, has the largest abundance compared to other families. While the range of coral coverage was 6-21.3%, which was included in the "bad" category. There was a relationship with a value of 0.462 (medium) between coral cover and fish abundance. The abundance of reef fish at 21.4% was influenced by coral cover, while the remaining 78.6% was influenced by other factors outside of the tested variables. The decline in reef fish abundance in 2015-2022 can be caused by a decrease in coral cover in the Sempu Strait.

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Section: The Proportion Of Coral Covermentioning

confidence: 99%

Reef fish monitoring as a coral reef resilience indicator in the Sempu Strait, South of East Java, Indonesia

BINTORO,

ISDIANTO,

HARAHAB

et al. 2023

Biodiversitas

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“…These three indicators are very important in a fishing port (Fadika et al, 2014). In addition, this port has the concept of an ecofishing port and is in the conservation area of the Strait of Sempu, so it must accommodate biotic and abiotic life (Isdianto et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Unloading of Fish Activities at Sendang Biru, Coastal Fisheries Port (Ppp) Pondokdadap, Malang Regency

Al Maky,

Isdianto,

Ariefandi

et al. 2023

JEEST

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The fishing port, which acts as a public agency, provides services and facilitates fishing activities for fishermen. One indicator that the service provided is already optimal is the minimum number of vessels in the process of dismantling fish in the port. The study aims to find out the fishing landing system and the number of ships that landed during the period September-August 2022. The method used is directly through field observations and collecting secondary data to supplement the data obtained. The system applied to each port is different. The port of Pondokdadap applies the queue method as well as the system of nahkoda, where the ship's documents must be submitted and the fisherman's number taken before landing. Boats that want to sell fish to the TPI must be equipped with a catch letter. In the period September-August 2022, the highest number of ships was found in June 2022, with 603. For the smallest number in January 2022, there were 22 ships. Based on the results obtained, it is known that the period of April-September has the highest number, while there is a decrease in the number in October-March. There was an increase in the number of vessels that carried out fishing, which was affected by the fishing season, with the high season in the Eastern season.

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Water quality of Sempu Strait to support the ecosystem resilience

Cited by 2 publications

References 3 publications

Reef fish monitoring as a coral reef resilience indicator in the Sempu Strait, South of East Java, Indonesia

Reef fish monitoring as a coral reef resilience indicator in the Sempu Strait, South of East Java, Indonesia

Unloading of Fish Activities at Sendang Biru, Coastal Fisheries Port (Ppp) Pondokdadap, Malang Regency

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