How important are mangroves and seagrass beds for coral-reef fish? The nursery hypothesis tested on an island scale

Nagelkerken, Ivan; Roberts, C.M; Velde, G. van der; Dorenbosch, M.; Riel, M.C. van; Morinière, E. Cocheret de la; Nienhuis, P.H.

doi:10.3354/meps244299

Cited by 341 publications

(214 citation statements)

References 19 publications

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“…Dit geeft een maat van de dichtheid van vissen per oppervlakte-eenheid. Voor Caribisch Nederland bestaan er verschillende van zulke studies die momentopnames geven van de status van abundantie van vooral dagvissen (diurne vissen) in delen van het ondiepe koraalrif (Hawkins et al 2007;Klomp en Kooistra 2003;, , Kuik et al 2014Looiengoed 2013;Luckhurst en Luckhurst 1978;McLellan 2009;Nagelkerken et al 2002;Pattengill-Semmens 2002;Roberts en Hawkins 1995;Sybesma et al, 1993;Sandin et al 2008Vlugt 2016). Bij dat soort visuele tellingen worden nachtvissen (nocturne vissen die zich overdag schuil houden) die anders wel in fuiken en netten of tijdens het nachtvissen met handlijnen worden gevangen, vaak grotendeels over het hoofd gezien.…”

Section: Beoordeling Toekomstperspectief: Matig Ongunstigunclassified

Staat van de natuur van Caribisch Nederland 2017 : een eerste beoordeling van de staat (van instandhouding), bedreigingen en managementimplicaties van habitats en soorten in Caribisch Nederland

Debrot¹,

Henkens

Verweij

2018

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Section: Beoordeling Toekomstperspectief: Matig Ongunstigunclassified

Staat van de natuur van Caribisch Nederland 2017 : een eerste beoordeling van de staat (van instandhouding), bedreigingen en managementimplicaties van habitats en soorten in Caribisch Nederland

Debrot¹,

Henkens

Verweij

2018

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“…The current uses of mangrove resources in the region indicate a clear conflict between fishing and forestry. The very mangrove trees that serve as breeding grounds for fisheries [37,38] are contradictorily being sacrificed as fuel for fish smoking. All of this information is important for forestry administrators because it is useful in developing exploitation quotas, monitoring systems, taxing commercial exploiters.…”

Section: Implications For Conservationmentioning

confidence: 99%

The Implications of Wood Exploitation for Fish Smoking on Mangrove Ecosystem Conservation in the South West Province, Cameroon

Feka

Manzano

2008

Tropical Conservation Science

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In this study we investigated how the use of mangrove wood for fish smoking by local people in some localities of the South West (SW) Province of Cameroon may be in conflict with the conservation and sustainability of mangrove ecosystems. With the use of socio-economic surveys, from February to July 2006, we established that the amount of the annual fuel-wood harvest for five study sites was about 102,650 m 3 (i.e., an amount equivalent to clearing about 205.3 ha of mangrove forests annually). It is estimated that approximately 62% of this total is used to smoke most of the fish (i.e., about 90.7% of the fish landings) across the five study sites. The quantities of wood seemed to vary proportionately with fish landings across sites, hence indicating a probable direct correlation between mangrove wood harvested and its use in fish smoking. The different uses of mangrove wood were similar in all sites, but the quantities of wood extracted from different sites varied, with sites of high fish landings registering the highest fuel-wood turnover. It seemed that local people were unaware of the need to maintain ecosystem functions despite the close relationship between wood and fish harvesting, and their importance in ensuring the livelihood for local population in the study areas. From the revision of current management policies and field observations, we propose the development of adaptive management strategies aimed at improving policy, creating public awareness, and integrating local communities in the development of a sustainable management plan for the mangrove resources of Cameroon.

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“…Their movements may be triggered by several factors: tides, food availability, variation in salinity and/or ontogeny (Cocheret de la Morinière et al, 2003;Lugendo et al, 2005Lugendo et al, , 2006Nakamura et al, 2008;Kimirei et al, 2013). Mangroves may, therefore, be designated as potential nurseries for pelagic and demersal coral reef fish and crustaceans (Laegdsgaard & Johnson, 2001;Nagelkerken et al, 2002;Nagelkerken, 2009). A 'nursery' is defined as a habitat for immature fish where density, growth, survival of juveniles and movement to adult habitats are enhanced compared to adjacent habitats (Beck et al, 2001;Dahlgren et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

The mangrove forests as nursery habitats for the ichthyofauna of Mida Creek (Kenya, East Africa)

et al. 2014

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This study investigated the presumed nursery function of mangroves for the ichthyofauna in East African swamp forests, Mida Creek. The species and size composition of the fish fauna and their trophic interactions were studied for five stations. Samples were collected during 5-6 consecutive days close to spring tide in mid-July 2011. Fish were caught using different types of passive fishing gear, such as large and small fyke nets, gill nets and, additionally, beach seines. All individuals were identified to species level, measured and preserved for further analyses. Stomach content analysis was applied to provide information about their diet. Stable isotope analysis was used to detect whether the source of primary production for the higher trophic levels is mangrove-related or not. A total of 27 fish species was recorded in a catch of 938 teleost specimens. Our analyses showed that a majority of fish belonged to the zoobenthivorous/omnivorous trophic mode, since they were partially feeding on invertebrates and on various other food sources. Two species (Sphyraena barracuda and Synodus variegatus) exhibited a mixed diet, with a piscivorous preference. Results concerning the population structure suggested that the fish community of Mida mainly consists of transient species. Juveniles were numerically more abundant in the whole Creek than adults. These findings support the hypothesis of a nursery function of the mangrove forests, Mida Creek.

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How important are mangroves and seagrass beds for coral-reef fish? The nursery hypothesis tested on an island scale

Cited by 341 publications

References 19 publications

Staat van de natuur van Caribisch Nederland 2017 : een eerste beoordeling van de staat (van instandhouding), bedreigingen en managementimplicaties van habitats en soorten in Caribisch Nederland

Staat van de natuur van Caribisch Nederland 2017 : een eerste beoordeling van de staat (van instandhouding), bedreigingen en managementimplicaties van habitats en soorten in Caribisch Nederland

The Implications of Wood Exploitation for Fish Smoking on Mangrove Ecosystem Conservation in the South West Province, Cameroon

The mangrove forests as nursery habitats for the ichthyofauna of Mida Creek (Kenya, East Africa)

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