Fish species richness in shallow environments of the Island of Santa Catarina, Southern Brazil

The Island of Santa Catarina is a mosaic of ecosystems of great importance for fish fauna, highlighting the presence, in the same island, of estuaries, lagoons, mangroves, rocky shores and sandy beaches. This study aimed to compare, based on species richness, fish assemblages between different ecosystems. Between 1981 and 2011, there were collected a total of 165 taxa of fish, distributed in 54 families, in six sampling sites, using casting net, sweep net, beach trawl and gill net. According to the species accumulation curve, that show the increase of the number of different species with the increase of the number of samples, for all sites, the curves of species recorded followed patterns similar to curves obtained by the Jacknife index. However, the number of species has stabilized only for samples collected in Saco dos Limões, Itacorubi Mangrove and Ratones Mangrove. Comparing the mean values of richness between sites, the highest mean value was found in Saco dos Limões, followed by Índio Beach, Conceição Lagoon, North Bay , Itacorubi and Ratones Mangroves. Using the list of species as reference, despite the differences in abundance and richness between sites, the taxonomic structure is similar between sampling sites, which supports the hypothesis that the assemblages are occurring in all sites and the differences are primarily related to the patterns of reproduction and recruitment of species and secondarily influenced by abiotic factors, especially the temperature and salinity.

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Mosquitoes (Diptera: Culicidae) from crepuscular period in an Atlantic Forest area in Southern Brazil

Brazilian Journal of Biology ◽

10.1590/1519-6984.09815 ◽

2017 ◽

Vol 77 (1) ◽

pp. 60-67 ◽

Cited By ~ 6

Author(s):

E. Orlandin ◽

E. B. Santos ◽

M. Piovesan ◽

M. A. Favretto ◽

A. H. Schneeberger ◽

...

Keyword(s):

Species Richness ◽

Atlantic Forest ◽

Abiotic Factors ◽

Abundant Species ◽

Forest Area ◽

Peak Activity ◽

Southern Brazil ◽

Santa Catarina ◽

Specific Composition ◽

Etiological Agents

Abstract Crepuscular period is one of the factors that may influence the biting activity of mosquitoes. Many of these insects have a peak activity in this period. The purpose of this study was to investigate the afternoon crepuscular activity of Culicidae in a remaining area of Atlantic Forest in western Santa Catarina, southern Brazil. Moreover, the possible influence of abiotic factors, the abundance and species richness were verified. In order to better analyze the influence of crepuscular period in specific composition and abundance of mosquitoes, the dusk was divided into three periods: pre-sunset, sunset and post-sunset. At the end of the study, nine hundred and eight four specimens distributed in 12 genera and 23 species were collected. Trichoprosopon pallidiventer (Lutz, 1905) (59.76%), Aedes crinifer (Theobald, 1903) (8.13%), Ae. scapularis (Rondani, 1848) (5.89%) were the most abundant species. Spring time presented the greatest abundance and species richness. During the study, among the three periods evaluated, pre-sunset had the greatest abundance and post-sunset the lowest. Pre-sunset and sunset had the greatest similarity between species. Regarding to the abiotic factors evaluated seven and 15 days before sampling, they did not present significant correlation for the three most abundant species. However, temperature had a positive correlation to these species. Moreover, the correlation between collected species and its possible role as vectors of etiological agents of diseases was discussed.

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Performance of a baited underwater video system vs. the underwater visual census technique in assessing the structure of fish assemblages in a Mediterranean marine protected area

Mediterranean Marine Science ◽

10.12681/mms.26639 ◽

2021 ◽

Vol 22 (3) ◽

pp. 480

Author(s):

GABRIELLA LA MANNA ◽

IVAN GUALA ◽

DANIELE GRECH ◽

FRANCESCO PERRETTI ◽

FABIO RONCHETTI ◽

...

Keyword(s):

Species Richness ◽

Protected Area ◽

Fish Assemblages ◽

Marine Protected Area ◽

Fish Fauna ◽

Underwater Video ◽

Visual Census ◽

Underwater Visual Census ◽

Species Richness And Abundance ◽

High Level

Accurate, rapid and cost-effective fish assemblage monitoring is fundamental for marine protected area (MPA) management as a pivotal tool to verify whether and to what extent MPA conservation objectives have been achieved and to redefine these objectives in the framework of an adaptive management. Recently, there has been a sharp increase in the number of video-based methods to study fish fauna, such as baited remote underwater video (BRUV) systems, that, depending on the objectives of the monitoring, can provide complementary or additional data to the more commonly used underwater visual census (UVC). Even though BRUV systems have been widely used in a wide range of geographic contexts and habitats, their use in the Mediterranean basin is still sporadic and the evaluation of the efficiency of BRUV systems and whether they can be used to complement other techniques needs investigation. Thus, the objective of this study was to assess the performance of a BRUV system in a Mediterranean MPA and to evaluate its effectiveness in assessing the structure of fish assemblages (abundance and species richness) by comparing estimates with those obtained by the UVC technique. The fish fauna were monitored by BRUV and UVC in the Capo Caccia – Isola Piana Marine Protected Area (Sardinia, Italy), in July and October-November 2020, at four sampling sites and two areas, hundreds of meters apart, for each site. Overall, 46 taxa and a total of 3620 individuals were observed by BRUV, while 36 taxa and a total of 2995 individuals were observed by UVC. The species first observed in front of the camera’s field of view and able to reach the maximum abundance were the planktivores (Chromis chromis and Oblada melanura) followed by several carnivorous species belonging to the families Labridae, Serranidae and Sparidae, and lastly two carnivores (Mullus surmuletus and Mugilidae spp.) and some high-level predators (Dentex dentex, Seriola dumerili, Sphyraena viridensis, Dicentrarchus labrax). The maximum species richness and abundance were reached between 39 and 50 min. The cumulative species richness increased until around 30 min. Species richness was higher during the BRUV compared to the UVC monitoring. The consistency in findings between BRUV and UVC and a better performance of BRUV in detecting some species (mainly high-level predators), supports BRUV as an additional technique for describing and quantifying species richness and abundance also in the Mediterranean Sea. Based on the results of this study, the advantages/disadvantages, shortcomings, suggestions and resources needed for the two techniques are outlined.

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Fish assemblages in two sandy beaches in lower Purus river, Amazonas, Brazil

Iheringia Série Zoologia ◽

10.1590/s0073-47212010000400006 ◽

2010 ◽

Vol 100 (4) ◽

pp. 319-328 ◽

Cited By ~ 9

Author(s):

Cleber Duarte ◽

Lúcia H. Rapp Py-Daniel ◽

Cláudia Pereira de Deus

Keyword(s):

Species Composition ◽

Fish Assemblages ◽

Abiotic Factors ◽

Mesh Size ◽

Sandy Beaches ◽

Water Levels ◽

Total Biomass ◽

Levels Of Use ◽

Nmds Analysis ◽

Different Levels

Fish assemblages from two sandy beaches in the lower Purus river (Amazonas, Brazil) were compared. Four sampling groups were represented by: day and night samples in sandy beach inside the Reserva Biológica de Abufari (biological reserve) and day and night samples in the Reserva de Desenvolvimento Sustentável Piagaçu-Purus (sustainable development reserve). Samples were collected during low water levels (November) in 2007. The fish were sampled by means of seines with mesh size of 5 mm between opposing knots, 11 m long and 6 m wide. A total of 112 fish species belonging to nine orders and 27 families was captured. The vast majority of the dominant forms consisted of small fishes (< 100 mm SL) or juveniles. Samples collected in Abufari at night presented more specimens (3,540), higher richness (84 spp.), larger total biomass (76,614 g) and higher diversity (H'= 2.57) than the other groups. The composition of fish assemblages was significantly different among all analyzed groups (ANOSIM, p < 0.0001, R= 0.71). NMDS analysis also clustered all species in four distinct groups according to species composition per period and site. SIMPER analyses showed that 80% of variation of species composition among the groups examined was due to 12 species. However, fish composition did not show any correlation with the abiotic factors examined. Different levels of use in both reserves may explain differences in fish composition.

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Fish assemblages in floodplain lakes in a Neotropical river during the wet season (Magdalena River, Colombia)

Journal of Tropical Ecology ◽

10.1017/s0266467412000181 ◽

2012 ◽

Vol 28 (3) ◽

pp. 271-279 ◽

Cited By ~ 6

Author(s):

Carlos Granado-Lorencio ◽

Alejandra Gulfo ◽

Frank Alvarez ◽

Luz Fernanda Jiménez-Segura ◽

Juan David Carvajal-Quintero ◽

...

Keyword(s):

Species Richness ◽

Fish Assemblages ◽

Abiotic Factors ◽

Environmental Parameters ◽

Floodplain Lakes ◽

Fish Diversity ◽

Wet Season ◽

River Floodplain ◽

Lake Morphology ◽

Magdalena River

Abstract:A number of studies have pointed out that abiotic factors and recolonization dynamics appear to be more important than biotic interactions in structuring river–fish assemblages. In this paper, we studied the fish assemblages in 27 floodplain lakes, with perennial connection to the river, in the middle section of the Magdalena River (Colombia), to examine spatial pattern in freshwater fish diversity in relation to some environmental parameters. Our objective was to examine relationships between floodplain-lake fish communities and environmental variables associated with lake morphology, water chemistry and river–floodplain connectivity in a large river–floodplain ecosystem. During the study, a total of 18 237 fish were caught from 50 species (regional richness; 17 were migrants and 33 residents). In the present study, the most diverse order was Characiformes with 20 species, followed by Siluriformes, with 19 species. Characidae and Loricaridae were the richest families. The range of species richness (local richness) varied between five and 39 species. Similarity of local assemblages (using the presence–absence data) depends on the distance between lakes. A positive relationship was observed between the Ln of the total abundance of each species and the number of lakes where they were found. Out of all the environmental parameters taken in the lakes, only the size (Log Area) and relative perimeter length are significantly related to local assemblage species richness. It has not been possible to demonstrate that the connectivity (distance) from lakes to the main river can be considered a predictor of the local richness.

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A comparison of the fish assemblages on natural and artificial reefs off Sal Island (Cape Verde)

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315412001051 ◽

2012 ◽

Vol 93 (2) ◽

pp. 437-452 ◽

Cited By ~ 5

Author(s):

Miguel N. Santos ◽

Miguel T. Oliveira ◽

João Cúrdia

Keyword(s):

Species Richness ◽

Fish Assemblages ◽

Diversity Index ◽

Cape Verde ◽

Artificial Reefs ◽

Visual Census ◽

Mean Values ◽

Marine Habitats ◽

Fish Biodiversity ◽

Santa Maria

Tourism is a growing activity in Cape Verde, which can lead to more intensive and uncontrolled fishing and diving activities, affecting the quality of marine habitats. To mitigate this biodiversity problem, a private diving operator, supported by the local authorities, decided to deploy the first artificial reefs (ARs) in the Archipelago just off Santa Maria Bay (Sal Island). To evaluate the ARs capacity to promote marine fish biodiversity in Santa Maria Bay, the fish assemblages were compared to those from nearby natural reefs (NRs), located at the same depth (10 and 28 m depth), by means of visual census. All study sites were surveyed by visual census in August 2009. A total of 64 species were recorded, mostly consisting of sedentary and/or benthophagous demersal species, followed by highly-sedentary benthic cryptic species. ‘Tchuklassa’ NR showed the highest species richness (58 species), while the lowest was recorded at ‘Santo Antão’ AR (48 species). An overall positive relationship was observed between habitat rugosity and mean species richness. The results showed a high percentage of common species on both reef types. Higher mean values of community descriptors (number of species, Shannon–Weaver diversity index, Simpson dominance index and equitability) and fish density were found on the ARs, with slightly higher densities recorded on the deeper reefs. These results suggest that ARs can have an important role promoting the local fish biodiversity and supporting local sustainable development of diving tourism.

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ENVIRONMENTAL DRIVERS OF FISH ASSEMBLAGES FROM THE SHALLOW INFRALITTORAL AREAS OF THE PARANAGUÁ BAY, SOUTHERN BRAZIL

Oecologia Australis ◽

10.4257/oeco.2020.2404.14 ◽

2020 ◽

Vol 24 (04) ◽

pp. 917-927

Author(s):

Paula Nakayama ◽

◽

Alberto Carvalho Peret ◽

Johnatas Adelir-Alves ◽

Olímpio Rafael Cardoso ◽

...

Keyword(s):

Fish Assemblages ◽

Diversity Index ◽

Abiotic Factors ◽

Sampling Site ◽

Fish Fauna ◽

Environmental Drivers ◽

Estuarine Fish ◽

Otter Trawl ◽

Paranaguá Bay ◽

Wiener Diversity Index

The composition of estuarine fish fauna is dynamic and complex. Despite the variation in fish fauna in estuaries, it is possible to observe some species associated with microhabitats. The assemblage composition of these communities is apparently derived from habitat selection. The aim of this study was to assess the structure of the demersal fish fauna of the Paranaguá Bay and its relationship with biotic and abiotic factors. To this end, monthly collections were conducted using an otter trawl, from October 1999 to September 2000, at five sites in the shallow infralittoral. Biotic (organic matter, and invertebrates) and abiotic factors (salinity, temperature, pH, dissolved oxygen, seston, and nutrients) were recorded during sampling. A total of 6,623 individuals were captured, belonging to 2 species of Chondrichthyes and 53 species of Actinopterygii (26 families). Sciaenidae was the most representative in terms of richness, with 11 species, and Ariidae was the most representative in terms of abundance. The catfish Cathorops spixii was the most abundant species, representing 21 % of the entire catch. There were significant differences in the composition and abundance of the fish fauna among the studied areas, as evidenced by the Shannon-Wiener diversity index. Such differences seem to be related to the complexity of habitats, which occur due to different types of bottom cover found at each sampling site. The abiotic variables indicated little influence on the structure of the fish assembly. These results contribute to a better understanding of the fish fauna from the shallow infralittoral areas of the Paranaguá Bay, and provide data to decision makers for better implementation of management and conservation measures.

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Structure of fish assemblages in waters of the Southern Acid Peat Flats, South-western Australia

Marine and Freshwater Research ◽

10.1071/mf9900721 ◽

1990 ◽

Vol 41 (6) ◽

pp. 721 ◽

Cited By ~ 11

Author(s):

BJ Pusey ◽

DHD Edward

Keyword(s):

Species Richness ◽

Western Australia ◽

Interannual Variation ◽

Fish Assemblages ◽

Fish Fauna ◽

Single Species ◽

Aquatic Habitats ◽

Temporary Habitats ◽

High Predictability ◽

Degree Of Isolation

The structure of freshwater fish assemblages in waters of the southern acid peat flats of south-western Australia was monitored over a 3-year period. Nine locations were sampled during the course of the study; they differed in the permanence of the water supply and the degree of isolation from permanent water. The climate of the region is a Mediterranean one of high predictability (i.e. pronounced seasonality and low interannual variation). Consequently, temporary aquatic habitats were also temporally predictable in incidence and duration and were colonized by a comparatively rich fish fauna. Differences in habitat permanence and isolation were reflected in the structure of the fish assemblages, with temporary, highly isolated habitats being dominated by aestivating species. Temporary habitats not isolated from permanent water had the highest species richness and also contained one aestivating species. Permanent water habitats had the lowest species richness and diversity and were dominated by a single species (Edeba vittata). The assemblages changed little during the period of study with respect to species persistence and structure.

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ICHTHYOFAUNA OF TRIBUTARY STREAMS OF THE CINZAS RIVER BASIN, PARANAPANEMA RIVER, BRAZIL

Oecologia Australis ◽

10.4257/oeco.2021.2501.13 ◽

2021 ◽

Vol 25 (01) ◽

pp. 142-153

Author(s):

Dyego Leonardo Ferraz Caetano ◽

◽

Edson Fontes de Oliveira ◽

Cláudio Henrique Zawadzki ◽

◽

...

Keyword(s):

Species Richness ◽

River Basin ◽

Native Species ◽

Poecilia Reticulata ◽

Fish Assemblages ◽

Fish Fauna ◽

Abundant Species ◽

Richness Estimators ◽

Conservation Plans ◽

First Time

Streams are environments that are very affected by human activities such as pollution, deforestation of riparian forests and introduction of exotic species. In this context, it is important to know its biodiversity for monitoring and conservation. The present study inventoried the fish fauna of three tributary streams of the Jacarezinho River (Cinzas River basin, Paranapanema River) with different environmental characteristics: Água dos Anjos, Monjolinho and Ubá streams. Quarterly collections were performed in the period between October 2012 and July 2013 at the headwaters, in the middle and at the mouth of each stream, using electrofishing. We analyzed the parameters of species richness, total abundance, relative abundance, capture constancy, rarefaction curves of Coleman, and richness estimators ACE and ICE. We captured a total of 7102 individuals, distributed in six orders, 12 families and 33 species. The most abundant order was Characiformes (76.15 %), while the most abundant species were: Bryconamericus iheringii (39.5 %), Astyanax bockmanni (19.36 %), and Geophagus brasiliensis (7.52 %). The highest species richness was found in Água dos Anjos stream (26), followed by Monjolinho stream (25), and the Ubá stream (15). We recorded the occurrence of four non-native species (Bryconamericus exodon, Gymnotus inaequilabiatus, Poecilia reticulata and Oreochromis niloticus), which represent a risk to the biodiversity of the studied streams. The Ubá stream was considered the most conserved, but the presence of P. reticulata shows that it has also suffered from anthropic impacts. This non-native species is constantly associated to degraded environments, mainly when it occurs in high abundance. Our results suggest that the fish assemblages studied present different structures, probably due to the interaction among historical, abiotic, biotic, and anthropic factors. This study has been carried out for the first time in the Cinzas River basin and can help provide theoretical input for the elaboration of monitoring and conservation plans.

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Composition and assemblage structure of demersal fish from São Cristóvão beach, Areia Branca, RN

Biota Neotropica ◽

10.1590/s1676-06032012000300012 ◽

2012 ◽

Vol 12 (3) ◽

pp. 108-117 ◽

Cited By ~ 1

Author(s):

Natália Carla Fernandes de Medeiros Dantas ◽

Caroline Vieira Feitosa ◽

Maria Elisabeth de Araújo

Keyword(s):

Sandy Beach ◽

Fish Assemblages ◽

General Pattern ◽

Fish Fauna ◽

Demersal Fish ◽

Sandy Beaches ◽

Assemblage Structure ◽

Northeastern Brazil ◽

Basic Knowledge ◽

Northern Coast

Fish assemblages are an important element of sandy beaches, as they are fundamental for these ecosystems' balance of energy. Descriptions of the structure of fish assemblages in the sandy beaches of northeastern Brazil are scarce; this is especially true for the state of Rio Grande do Norte, which northern coast is poorly studied. This study aimed to identify the fish fauna of São Cristóvão Beach and to determine their assemblage structure. Three trawlings, considered as replicates, were undertaken monthly, in the same day, during 10 minutes each time, parallel to the coastal line, and in the direction of current, from February 2010 to January 2011. To describe the general pattern of the fish assemblage, the abundance, frequency and trophic categories of each species were estimated. On São Cristóvão Beach, 8894 individuals were captured, belonging to 58 species, 48 genera and 28 families. The most abundant and frequent species were Pomadasys corvinaeformis (Steindachner, 1868), Cathorops spixii (Agassiz, 1829), Stellifer rastrifer (Jordan, 1889), Pellona harroweri (Fowler, 1917), Stellifer stellifer (Bloch, 1790), Chirocentrodon bleekerianus (Poey, 1867), Larimus breviceps Cuvier, 1830, Menticirrhus americanus (Linnaeus, 1758)and Conodon nobilis (Linnaeus, 1758). The most abundant trophic category was first order carnivores. The ichthyofauna of São Cristóvão Beach is diversified and the most representative families match those observed in sandy beach ecosystems from other Brazilian regions. The results presented here reflect the basic knowledge necessary to conduct further research in the region.

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Seasonal trends in the stable isotopic composition of snow and meltwater runoff in a subarctic catchment at Okstindan, Norway

Hydrology Research ◽

10.2166/nh.2004.0009 ◽

2004 ◽

Vol 35 (2) ◽

pp. 119-137 ◽

Cited By ~ 12

Author(s):

S.D. Gurney ◽

D.S.L. Lawrence

Keyword(s):

Isotopic Composition ◽

Mean Value ◽

Mean Values ◽

Stable Isotopic Composition ◽

Meltwater Runoff ◽

Stable Isotopic ◽

The Mean ◽

The Difference ◽

Δ18o And Δd

Seasonal variations in the stable isotopic composition of snow and meltwater were investigated in a sub-arctic, mountainous, but non-glacial, catchment at Okstindan in northern Norway based on analyses of δ18O and δD. Samples were collected during four field periods (August 1998; April 1999; June 1999 and August 1999) at three sites lying on an altitudinal transect (740–970 m a.s.l.). Snowpack data display an increase in the mean values of δ18O (increasing from a mean value of −13.51 to −11.49‰ between April and August), as well as a decrease in variability through the melt period. Comparison with a regional meteoric water line indicates that the slope of the δ18O–δD line for the snowpacks decreases over the same period, dropping from 7.49 to approximately 6.2.This change points to the role of evaporation in snowpack ablation and is confirmed by the vertical profile of deuterium excess. Snowpack seepage data, although limited, also suggest reduced values of δD, as might be associated with local evaporation during meltwater generation. In general, meltwaters were depleted in δ18O relative to the source snowpack at the peak of the melt (June), but later in the year (August) the difference between the two was not statistically significant. The diurnal pattern of isotopic composition indicates that the most depleted meltwaters coincide with the peak in temperature and, hence, meltwater production.

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