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Habitat utilisation by juveniles of commercially important fish species in a marine embayment in Zanzibar, Tanzania

Published online by Cambridge University Press:  15 July 2005

Blandina R. Lugendo ,
Annelies Pronker ,
Ilse Cornelissen ,
Arjan de Groene ,
Ivan Nagelkerken ,
Martijn Dorenbosch ,
Gerard van der Velde  and
Yunus D. Mgaya
Blandina R. Lugendo
Affiliation:
Faculty of Aquatic Sciences and Technology, University of Dar es Salaam, PO Box 35064, Dar es Salaam, Tanzania Department of Animal Ecology and Ecophysiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
Annelies Pronker
Affiliation:
Department of Animal Ecology and Ecophysiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
Ilse Cornelissen
Affiliation:
Department of Animal Ecology and Ecophysiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
Arjan de Groene
Affiliation:
Department of Animal Ecology and Ecophysiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
Ivan Nagelkerken
Affiliation:
Department of Animal Ecology and Ecophysiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
Martijn Dorenbosch
Affiliation:
Department of Animal Ecology and Ecophysiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
Gerard van der Velde
Affiliation:
Department of Animal Ecology and Ecophysiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
Yunus D. Mgaya
Affiliation:
Faculty of Aquatic Sciences and Technology, University of Dar es Salaam, PO Box 35064, Dar es Salaam, Tanzania
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Abstract

Habitat utilisation by juveniles of 13 commercially important fish species was studied in five habitats located in Chwaka Bay, Zanzibar: mangrove creeks, mangrove channel, sand/mud flats, a seagrass area close to mangroves, and a seagrass area far from mangroves. Fish samples were collected from each habitat using a seine net, and fish abundance and size were measured to determine habitat utilisation. The seagrass beds near to mangroves showed the most diverse fish assemblage of all habitats, possibly because it functions as a corridor between the mangroves and deeper parts of the embayment. Juveniles of Cheilio inermis, Hipposcarus harid,Leptoscarus vaigiensis, and Scolopsis ghanam inhabited seagrass beds only. Juveniles of Gerres filamentosus and Monodactylus argenteus were mainly found in the mangrove habitats. Lethrinus variegatus, Pelates quadrilineatus and Siganus sutor were found in more than two habitats, with highest abundances in seagrass beds. Juveniles of Gerres oyena, Lethrinus lentjan, Lutjanus fulviflamma and Sphyraena barracuda were the most generalist species and were found in all studied embayment habitats. Visual census surveys supported the seine net data showing that most fishes in the embayment habitats were juveniles or sub-adults. In terms of habitat utilisation by different size classes, five of the 13 species (Lethrinus lentjan, L. variegatus, P. quadrilineatus, Siganus sutor and Sphyraena barracuda) were found as small-sized individuals in shallow and turbid mangrove areas, whereas large-sized individuals were observed in deeper and less turbid seagrass beds. A possible explanation for this pattern could be an ontogenetic shift in habitat utilisation, although this could not be proven. The patterns observed in the present study show a high similarity to those observed in marine embayments in the Caribbean, indicating that similar mechanisms are at work which make these systems attractive juvenile habitats.

Keywords

Tropical fishJuvenile fishMangroveSeagrass bedHabitat utilizationIndian Ocean
Type
Research Article
Information
Aquatic Living Resources , Volume 18 , Issue 2 , April 2005 , pp. 149 - 158
Copyright
© EDP Sciences, IFREMER, IRD, 2005

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References

Beck, M.W., Heck, K.L. JR., Able, K.W., Childers, D.L., Eggleston, D.B., Gillanders, B.M., Halpern, B., Hays, C.G., Hoshino, K., Minello, T.J., Orth, R.J., Sheridan, P.F., Weinstein, M.P., 2001, The identification, conservation, and management of estuarine and marine nurseries for fish and invertebrates. Bioscience 51, 633-641. CrossRef
Blaber, S.J.M., 1986, Feeding selectivity of a guild of piscivorous fish in mangrove areas of north-west Australia. Aust. J. Freshwater Res. 37, 329-336. CrossRef
Blaber S.J.M., 2000, Tropical Estuarine Fishes: Ecology, exploitation and conservation. Blackwell Science Ltd, Fish and Aquatic Resour. Ser. 7.
Blaber, S.J.M., Blaber, T.G., 1980, Factors affecting the distribution of juvenile estuarine and inshore fish. J. Fish Biol. 17, 143-162. CrossRef
Cederlöf, U., Rydberg, L., Mgendi, M., Mwaipopo, O., 1995, Tidal exchange in a warm tropical lagoon: Chwaka Bay, Zanzibar. Ambio 24, 458-464.
Chitarro, P.M., Fryer, B.J., Sale, R., 2004, Discrimination of French grunts (Haemulon flavolineatum Desmarest, 1823) from mangrove and coral reef habitats using otolith microchemistry. J. Exp. Mar. Biol. Ecol. 308, 168-183.
Chong, V.C., Sasekumar, A., Leh, M.U.C., Cruz, R.D., 1990, The fish and prawn communities of a Malaysian coastal mangrove ecosystem, with comparisons to adjacent mud/sand flats and inshore waters. Estuar. Coast. Shelf Sci. 31, 703-722. CrossRef
Cocheret de la Morinière, E., Pollux, B.J.A., Nagelkerken, I., van der Velde, G., 2002, Post-settlement life cycle migration patterns and habitat preference of coral reef fish that use seagrass and mangrove habitats as nurseries. Estuar. Coast. Shelf Sci. 55, 309-321. CrossRef
Cocheret de la Morinière, E., Nagelkerken, I., van der Meij, H., van der Velde, G., 2004, What attracts juvenile coral reef fish to mangroves: Habitat complexity or shade? Mar. Biol. 144, 139-145.
De Troch, M., Mees, J., Papadopoulos, I., Wakwabi, E.O., 1996, Fish communities in a tropical bay (Gazi Bay, Kenya): Seagrass beds vs. unvegetated areas. Neth. J. Zool. 46, 236-252. CrossRef
Dorenbosch, M., van Riel, M.C., Nagelkerken, I., van der Velde, G., 2004a, The relationship of reef fish densities to the proximity of mangrove and seagrass nurseries. Estuar. Coast. Shelf Sci. 60, 37-48. CrossRef
Dorenbosch, M., Verweij, M.C., Nagelkerken, I., Jiddawi, N., van der Velde, G., 2004b, Homing and daytime tidal movements of juvenile snappers (Lutjanidae) between shallow-water nursery habitats in Zanzibar, western Indian Ocean. Environ. Biol. Fish. 70, 203-209. CrossRef
Field A., 2000, Discovering statistics using SPSS for Windows. Sage Publications, London.
Forward, R.B Jr., Tankersley, R.A., 2001, Selective tidal-stream transport of marine animals. Oceanogr. Mar. Biol. Annu. Rev. 39, 305-353.
Froese R., Pauly D., (eds.), 2004, FishBase. World Wide Web electronic publication. www.fishbase.org, version (08/2004).
Jiddawi N.S., Stanley R.D., 1997, Fisheries stock assessment in the traditional fishery sector: The information needs. Canadian International Development Agency, Zanzibar, Tanzania.
Johnstone, R.W., Mohammed, S.M., 1995, Spatial and temporal variations in water column nutrient concentrations in a tidally dominated mangrove creek: Chwaka Bay, Zanzibar. Ambio 24, 482-486.
Kimani, E.N., Mwatha, G.K., Wakwabi, E.O., Ntiba, J.M., Okoth, B.K., 1996, Fishes of a shallow tropical mangrove estuary, Gazi, Kenya. Mar. Freshwater Res. 47, 857-868. CrossRef
Laegdsgaard, P., Johnson, C.R., 1995, Mangrove habitats as nurseries: Unique assemblages of juvenile fish in subtropical mangroves in Eastern Australia. Mar. Ecol. Prog. Ser. 126, 67-81. CrossRef
Little, M.C., Reay, P.J., Grove, S.J., 1988, The fish community of an East African mangrove creek. J. Fish Biol. 32, 729-747. CrossRef
McClanahan, T.R., 1988, Seasonality in East Africa's coastal waters. Mar. Ecol. Prog. Ser. 44, 191-199. CrossRef
Mohammed S.M., Johnstone R.W., Widen B., Jordelius E., 1995, The role of mangroves in the nutrient cycling and productivity of adjacent seagrass communities, Chwaka Bay, Zanzibar. Zoology Department, Stockholm University, Sweden, and University of Dar es Salaam, Tanzania.
Morton, R.M., 1990, Community structure, density and standing crop of fishes in a subtropical Australian mangrove area. Mar. Biol. 105, 385-394. CrossRef
Nagelkerken I., 2000, Importance of shallow-water bay biotopes as nurseries for Caribbean reef fishes. Ph.D. Thesis, University of Nijmegen, The Netherlands.
Nagelkerken, I., Dorenbosch, M., Verberk, W.C.E.P., Cocheret de la Morinière, E., van der Velde, G., 2000a, Importance of shallow-water biotopes of a Caribbean bay for juvenile coral reef fishes: Patterns in biotope association, community structure and spatial distribution. Mar. Ecol. Prog. Ser. 202, 175-192. CrossRef
Nagelkerken, I., van der Velde, G., Gorissen, M.W., Meijer, G.J., van't Hof T., den Hartog C., 2000b, Importance of mangroves, seagrass beds and the shallow coral reef as a nursery for important coral reef fishes, using a visual census technique. Estuar. Coast. Shelf Sci. 51, 31-44. CrossRef
Nagelkerken, I., van der Velde, G., 2002, Do non-estuarine mangroves harbour higher densities of juvenile fish than adjacent shallow-water and coral reef habitats in Curaçao (Netherlands Antilles)? Mar. Ecol. Prog. Ser. 245, 191-204. CrossRef
Nagelkerken, I., Roberts, C.M, van der Velde, G., Dorenbosch, M., van Riel, M.C., Cocheret de la Morinière, E., Nienhuis, P.H., 2002, How important are mangroves and seagrass beds for coral-reef fish? The nursery hypothesis tested on island scale. Mar. Ecol. Prog. Ser. 244, 299-305. CrossRef
Nagelkerken, I., van der Velde, G., 2003, Connectivity between coastal habitats of two oceanic Caribbean islands as inferred from ontogenetic shifts by coral reef fishes. Gulf Caribb. Res. 14, 43-59. CrossRef
Parrish, J.D., 1989, Fish communities of interacting shallow-water habitats in tropical oceanic regions. Mar. Ecol. Prog. Ser. 58, 143-160. CrossRef
Pinto, L., Punchihewa, N.N., 1996, Utilization of mangroves and seagrasses by fishes in the Negombo estuary, Sri Lanka. Mar. Biol. 126, 333-345. CrossRef
Robertson A.I., Duke N.C., 1987, Mangrove as nursery sites: Comparison of the abundance and species composition of fish and crustaceans in mangroves and other near shore habitats in tropical Australia. Mar. Biol. 96,193-205.
Rozas, L.P., Minello, T.J., 1997, Estimating densities of small fishes and decapod crustaceans in shallow estuarine habitats: A review of sampling design with focus on gear selection. Estuaries 20, 199-213. CrossRef
ter Braak C.J.F., Smilauer P., 1998, Reference manual and user's guide to Canoco for Windows: Software for canonical community ordination (version 4). Microcomputer Power, Ithaca, New York.
Thayer, G.W., Colby, D.R., Hettler, W.F., 1987, Utilization of the red mangrove prop root habitats by fishes in south Florida. Mar. Ecol. Prog. Ser. 35, 25-38. CrossRef
van der Velde, G., van Avesaath, P.H., Ntiba, M.J., Mwatha, G.K., Marguillier, S., Woitchik, A.F., 1995, Fish fauna of mangrove creeks, seagrass meadows and sand flats in Gazi Bay, Kenya (Indian Ocean): A study with nets and stable isotopes. In: Heip C.H.R., Hemminga M.A., de Bie M.J.M. (Eds.), Monsoons and coastal ecosystems in Kenya. Netherlands Indian Ocean Programme Cruise Report 5, 39-50.
Wakwabi E.O., 1999, The ichthyofauna of a tropical mangrove bay (Gazi bay, Kenya): Community structure and trophic organisation. Ph.D. Thesis, Instituut voor Dierkunde, vakgroep morfologie, systematiek en ecologie, Universiteit Gent.
Weerts, S.P., Cyrus, D.P., 2002, Occurrence of young and small-sized fishes in different habitats within a subtropical South African and adjacent harbour. Mar. Freshwater Res. 53, 447-456. CrossRef