Correlation Between Existence of Reef Sharks with Abundance of Reef Fishes in South Waters of Morotai Island (North Moluccas)

Mukharror, D A; Baiti, I T; Ichsan, Muhammad; Pridina, Niomi; Triutami, Sanny

doi:10.1088/1755-1315/89/1/012006

Cited by 5 publications

(8 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…According to Carrier et al (2010), sharks of the Carcharhinidae family settled on coral reefs, namely T. obesus, C. amblyrhynchos, and C. melanopterus. These results were different from those observed by Juhel et al (2017) in New Caledonia (South-Western Pacific) (9 species), Mourier et al (2016) in Fakarava Atoll (French Polynesia) (5 species), and Mukharror et al (2017) in South Morotai, observed that there were two species of reef shark and none of the C. amblyrhynchos.…”

Section: Biomass Of Reef Sharkcontrasting

confidence: 88%

“…Out of these eight families, the Acanthuridae, Scaridae, Siganidae, Caesionidae, and Lutjanidae were always found in every location. The previous study has shown different results with both 14 (Nabil et al 2018) and 32 families (Mukharror et al (2017).…”

Section: Biomass Of Reef Fishmentioning

confidence: 82%

“…Theoretically, large sharks as top predators help in restoring the health of coral reefs indirectly by preying on predatory fish of lower trophic levels. Carnivorous fish has a great opportunity as the main prey of sharks, because its existence is the most found on coral reef ecosystems (Mukharror et al 2017). However, a critical evaluation of the available empirical studies (Roff et al 2016) showed that shark-herbivore interactions occur relatively infrequently on most presentday reefs (Rizzari et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…This area has been identified as a priority for sustainable fisheries management (Retnoningtyas et al 2017). Many studies have investigated the reef fish (Nabil et al 2018) and sharks (Pridina 2015;Ichsan et al 2016;Mukharror et al 2019;Mukharror et al 2020), and also their relative abundance (Mukharror et al 2018). However, no study has yet measured the relationship between the biomass of reef fish and shark.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Relationship between the biomass of reef shark and fish in South Morotai Waters, North Maluku, Indonesia

et al. 2020

View full text Add to dashboard Cite

Abstract. Sofyan JF, Ambariyanto A, Suwartimah K, Toha AHA. 2020. Relationship between the biomass of reef shark and fish in South Morotai Waters, North Maluku, Indonesia. Biodiversitas 21: 5605-5613. This study aims to determine the biomass of reef shark and fish in South Morotai Waters in North Maluku, Indonesia. The Audible Stationary Count and Underwater Visual Census method were used to collect the data of reef sharks and fish. Seven and one site locations of coral reef and shark ecosystems were surveyed and, the data were analyzed using regression analysis to obtain a correlation between the variables. The three reef sharks found were Carcharhinus melanopterus, Triaenodon obesus, and Carcharhinus amblyrhynchos. Biomass estimation of reef sharks and fish ranged from 0.59 to 19.97 kg/ha and 30.95 kg/ha to 49.92 kg/ha, consisting of 8 families. In the area of aggregations, both species were found in 7 sites, and the population of reef shark amounted to 86.96 kg/ha and fish was around 55.705 kg/ha, consisting of 9 families. There was a positive relationship between the biomass of reef shark and fish in South Morotai waters, and the index of determination was 0.8043, showing that the biomass of reef shark was influenced by that of fish. These results indicated the importance of biomass in determining the functional composition and diversity of reef shark and fish.

show abstract

Section: Biomass Of Reef Sharkcontrasting

confidence: 88%

Section: Biomass Of Reef Fishmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Relationship between the biomass of reef shark and fish in South Morotai Waters, North Maluku, Indonesia

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Es importante tener claro que aunque la pesca ilegal no es su mayor amenaza, la abundancia de T. obesus ha declinado en los últimos 30 años, según lo reportan sus avistamientos en el buceo en el PN Isla del Coco (White et al 2015). Lo mismo está sucediendo en la Gran Barrera Coralino donde se reporta una reducción del 7% anual de los avistamientos de Triaenodon obesus (Mukharror et al, 2017).…”

Section: Discussionunclassified

Residencia del tiburón punta blanca de arrecife, Triaenodon obesus, (Carcharhiniformes: Carcharhinidae) en las bahías Chatham y Wafer del Parque Nacional Isla del Coco, Costa Rica

López-Garro¹,

Zanella²,

Golfín-Duarte³

et al. 2020

RBT

View full text Add to dashboard Cite

Introducción: El tiburón punta blanca (Triaenodon obesus) es una especie de arrecife de aguas tropicales, no migratoria, que ha demostrado no tener una alta conectividad costera, como la observada para otras especies de tiburón, sin embargo posee la distribución más amplia de todas las demás especies de tiburón de arrecife del Indo-Pacífico. T. obesus, es una de las especies de tiburón más comunes en el Parque Nacional Isla del Coco (PNIC), y no presenta una estacionalidad marcada. En las bahías localizadas en el norte del PNIC, Bahía Chatham y Bahía Wafer, reside una saludable población del tiburón punta blanca de arrecife. A pesar de ser una especie abundante en las bahías Chatham y Wafer del PNIC, la información sobre su residencia resulta escaza. Objetivo: Conocer sobre el uso de hábitat y los movimientos del tiburón punta blanca de arrecife mejorará su manejo en el PNIC y en otros lugares del Pacífico Tropical Oriental. Para esto se realizó un estudio preliminar sobre la residencia en las bahías Chatham y Wafer del PNIC, utilizando telemetría acústica. Métodos: Se realizó una expedición de marcaje de tiburones al Parque Nacional Isla del Coco entre el 25 de noviembre al 5 de diciembre del 2014. Durante esta expedición se realizaron 2 giras nocturnas entre las 18:00 y las 22:00 a Bahía Chatham y Bahía Wafer y se marcaron 8 individuos de T. obesus con telemetría acústica y se instalaron dos receptores, uno en cada bahía. Resultados: Entre noviembre 2014 y diciembre 2015 los tiburones punta blanca marcados fueron detectados por los receptores instalados en las bahías en un total de 278 706 ocasiones. Los tiburones T. obesus marcados permanecieron largos periodos en las bahías Chatham y Wafer, El índice de Residencia (IR) medio de los T. obesus marcados fue de 0.97±0,03, reportando una tendencia en la baja del número total de detecciones durante las horas nocturnas. Los tiburones punta blanca de arrecife mostraron una alta fidelidad al sitio de marcaje, que se ve reflejado en los elevados índices de residencia reportados, particularmente altos en comparación con otras especies de tiburón de arrecife. Las detecciones de los tiburones en las bahías tienden a disminuir a partir de las 18:00 horas, cuando el tiburón punta blanca se vuelve activo para cazar en el arrecife. Conclusiones: En conclusión, los tiburones punta blanca poseen una alta residencia y fidelidad, lo cual confirma su bajo rango de hogar. El Área Marina Protegida de la Isla del Coco probablemente brinda una protección efectiva a la población del tiburón punta blanca de la pesca ilegal.

show abstract

Blacktip reefshark (Carcharhinus melanopterus) individual’s identification in Morotai waters using its fin’s natural markings

Mukharror¹,

Susiloningtyas²,

Handayani³

et al. 2019

AIP Conference Proceedings

View full text Add to dashboard Cite

Correlation Between Existence of Reef Sharks with Abundance of Reef Fishes in South Waters of Morotai Island (North Moluccas)

Cited by 5 publications

References 27 publications

Relationship between the biomass of reef shark and fish in South Morotai Waters, North Maluku, Indonesia

Relationship between the biomass of reef shark and fish in South Morotai Waters, North Maluku, Indonesia

Residencia del tiburón punta blanca de arrecife, Triaenodon obesus, (Carcharhiniformes: Carcharhinidae) en las bahías Chatham y Wafer del Parque Nacional Isla del Coco, Costa Rica

Blacktip reefshark (Carcharhinus melanopterus) individual’s identification in Morotai waters using its fin’s natural markings

Contact Info

Product

Resources

About