Importance of mangroves for fish [Elektronische Ressource] : bases for the conservation and sustainable management of mangrove ecosystems in North Brazil / Tommaso Giarrizzo

Tommaso

Description

Importance of Mangroves for Fish. Bases for the conservation and sustainable management of mangrove ecosystems in North Brazil Tommaso Giarrizzo Thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Natural Sciences Faculty 2 (Biology/Chemistry) University of Bremen Bremen June, 2007 Universität Bremen Superisor: Prof. Dr. Ulrich Saint-Paul (University Bremen, ZMT) Co-supervisor: Prof. Dr. Victoria Isaac (Universidade Federal do Pará - Brazil) CONTENTS LIST OF TABLES.................................................................................................................III LIST OF FIGURES.................................................................................................................V ABBREVIATIONS............................................................................................................. VIII SUMMARY ..............................................................................................................................X OUTLINE OF PUBLICATIONS...................................................................................... XIV ACKNOWLEDGEMENTS ..............................................................................................XVII CHAPTER I - THESIS OVERVIEW 1 INTRODUCTION ..................................................................................................

Sujets

• Biologie

Informations

• Publié par: universitat_bremen
• Publié le: 01 janvier 2007
• Nombre de lectures: 514
• Langue: English
• Poids de l'ouvrage: 7 Mo

Extrait

Importance of Mangroves for Fish. Bases for the conservation and sustainable ecosystems in North Brazil management of mangrove zzo GiarrioTommas Thesis submitted in partial fulfilment of the

ral SciencesDoctor of Naturequirements for the degree of

Faculty 2 (Biology/Chemistry)

enm BreUniversität

University of Bremen

Bremen

June, 2007

Superisor: Prof. Dr. Ulrich Saint-

MPaul (University Bremen, Z

T)

niversidade Federal do Pará - BrazCo-supervisor: Prof. Dr. Victoria Isaac (U

il)

CONTENTS

LIST OF TABLES III.................................................................................................................

.V................................................................................................................LIST OF FIGURES

ABBREVIATIONS.............................................................................................................VIII

X..............................................................................................................................SUMMARY

XIV......................................................................................CATIONSOUTLINE OF PUBLI

XVII..............................................................................................ACKNOWLEDGEMENTS

CHAPTER I - THESIS OVERVIEW 1
INTRODUCTIONGlobal overview...................................................................................................................................................................................................................................22
2.............................................................................................................Regional overviewObjectivesFish and fisheries in intertidal mangrove areas.......................................................................................................................................................................................3 5

STUDY AREA.......................................................................................................................8
Sampling methodMETHODS OVERVIEW.................................................................................................................................................................................................................1010
Laboratory and data analysisSpatial and temporal change in fish fauna (Chapter II - V).....................................................................................................................................12 12
12 ...................................................................................Feeding ecology (Chapter VI; VII)BiologicaAutotrophic sources for consumers (Chapter X)l information (Chapter V; VIII; IX).................................................................................................................................12 13
RESULTS AND DISCUSSION SUMMARY.....................................................................13
13 .........................atial scalet use in a medium spInter-creek variability in fish habitaLarge-scale comparison of the in14 ..................................tertidal mangrove fish faunaTemporal variation in the occurrence of juveniles fishes...........................................15
15 .............................................................o important fish speciesFeeding ecology of twAutotrophic sources foBasic biological informationr consumers.........................................................................................................................................................................16 17
CONCLUDING REMARKS, MANAGEMENTS IMPLICATIONS AND 18............................................................................................RESEARCH PERSPECTIVES 20.....................................................................................................................REFERENCES

CHAPTER II - SPATIAL DIFFERENCES AND SEASONAL CYCLICITY IN THE INTERTIDAL
FISH FAUNA FROM FOUR MANGROVE CREEKS IN A SALINITY ZONE OF THE CURUÇÁ
ESTUARY, NORTH BRAZIL........................................................................................................27

I

CHAPTER III - LARGE-SCALE GRADIENTS IN THE INTERTIDAL FISH FAUNA OF THE
WORLDS LONGEST MANGROVE AREA.....................................................................................45
CHAPTER IV - TEMPORAL PATTERNS IN RECRUITMENT OF SELECTED TROPICAL
FISH TO THE MANGROVE CREEKS: IMPLICATION FOR FISHERIES MANAGEMENT IN
NORTH BRAZIL........................................................................................................................55
CHAPTER V - GROWTH, CONDITION FACTOR AND SPATIAL DISTRIBUTION OF
JUVENILES ANCHOVIA CLUPEOIDES (ENGRAULIDAE) IN INTERTIDAL MANGROVE
CREEKS OF NORTHERN BRAZIL...............................................................................................73
CHAPTER VI - ONTOGENETIC AND SEASONAL SHIFTS IN THE DIET OF PEMECOU SEA
CATFISH SCIADES HERZBERGII (SILURIFORMES: ARIIDAE) FROM A MACROTIDAL
MANGROVE CREEK IN THE CURUÇÁ ESTUARY (NORTH BRAZIL)..........................................85
CHAPTER VII - FEEDING ECOLOGY OF JUVENILE DOG SNAPPER LUTJANUS JOCU
(BLOCH & SHNEIDER, 1801) (LUTJANIDAE), IN INTERTIDAL MANGROVE CREEKS IN
CURUÇÁ ESTUARY (NORTHERN BRAZIL)..............................................................................107
CHAPTER VIII - WEIGHT-LENGTH RELATIONSHIP FOR INTERTIDAL FISH FAUNA IN A
MANGROVE ESTUARY IN NORTHERN BRAZIL.......................................................................125
CHAPTER IX - ESTIMATES OF ANNUAL FOOD CONSUMPTION/BIOMASS RATIO (Q/B)
FOR FISH FAUNA IN AN AMAZONIAN MANGROVE ESTUARY..................................................135
CHAPTER X - AUTOTROPHIC SOURCES FOR AN AMAZONIAN MANGROVE FOOD WEB:
EVIDENCES AND UNCERTAINTIES FROM STABLE ISOTOPE ANALYSIS...................................147

II

LIST OF TABLES

CHAPTER II - SPATIAL DIFFERENCES AND SEASONAL CYCLICITY IN THE INTERTIDAL
FISH FAUNA FROM FOUR MANGROVE CREEKS IN A SALINITY ZONE OF THE CURUÇÁ
ESTUARY, NORTH BRAZIL st
order intertidal mangrove creeks Table 1. Summary of landscape features of the four 1in the Curuçá estuary, Pará, north Brazil, at neap tides. The presence of different
creek features is described subjectively using: blank = absence, + = low, ++ =
medium, +++ = high........................................................................................................31
Table 2. Rank by biomass (Rk), mean biomass (BM, g ha-1), mean density (D, fish ha-1)
of all fish species collected with a fyke net from four intertidal 1st order mangrove
ber 2003 and July 2004 in the Curuçá Septemcreeks at diurnal neap tides between G) according to McHugh (1967): guild (Eestuary, Pará, north Brazil. Ecological truly estuarine resident species (TE), marine occasional visitors (MO), marine
ns: B: benthophage, H: herbivorous, I: ach inspectiospecies (M), and own stomge, Z: zooplanktivorous, L: ichthyophage, B/I: benthophage-ichthyophalepidophage. Mean total length (TL) (cm) and the size range is given for each
35 ............................................................................................................................species.analysis of variance (site and season) and Table 3. Summary of results of two-factor Kruskal-Wstallis tests for 6 fish assemblage variables and 10 fish species collected
in four 1 order intertidal mangrove creeks in the Curuçá estuary, Pará, north
ntwise error was set to 0.05 using the eBrazil, using a fyke net. The experim-values in case of ANOVA; H ficant critical values (FBonferroni approach. Signiin case of Kruskal-Wallis test) are indicated by an asterisk. W: wet season; D: dry
season. d.f.: degrees of freedom. In multiple post-hoc comparisons (Tukeys
fferent pairs are hod) significantly ditehonest significant difference (HSD) mindicated by the same font style......................................................................................37

CHAPTER III - LARGE-SCALE GRADIENTS IN THE INTERTIDAL FISH FAUNA OF THE
WORLDS LONGEST MANGROVE AREA
ngrove coast of a the m fish surveys fromTable 1. Comparison of the five intertidal creek 49............................................. (PA) and Maranhão (MA).the north Brazilian states Pará CHAPTER VI - ONTOGENETIC AND SEASONAL SHIFTS IN THE DIET OF PEMECOU SEA
CATFISH SCIADES HERZBERGII (SILURIFORMES: ARIIDAE) FROM A MACROTIDAL
MANGROVE CREEK IN THE CURUÇÁ ESTUARY (NORTH BRAZIL)
rical abundance (N), gravimetric enumTable 1. Frequency of occurrence (F), composition (W) and Index of Relative Importance (IRI) of the stomach contents
of 226 pemecou sea catfish. The fish were collected bimonthly between
acrotidal creek of the Curuçá estuary. ber 2003 and July 2004 in a mSeptemAbbreviations for major categories of food items are shown in brackets.......................95

CHAPTER VII - FEEDING ECOLOGY OF JUVENILE DOG SNAPPER LUTJANUS JOCU
(BLOCH & SHNEIDER, 1801) (LUTJANIDAE), IN INTERTIDAL MANGROVE CREEKS IN
CURUÇ