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Benthic biodiversity along the central coast in the Brazilian EEZ (OBIS South America, BRAZIL)

Entry ID: Bentos_Score_Central

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Summary

Abstract: The main objectives of the REVIZEE Program were the species inventory and the evaluation of the sustainable yield of living resources from the Brazilian Exclusive Economic Zone. In this context, the benthos has an important role, since it is one of the main components of marine food webs, being food to many pelagic and demersal fishing resources or as a living resource itself. This work presents a ... characterization of the phyto- and zoobenthos from the continental shelf and slope of the central Brazilian coast, between Salvador, in Bahia (13°00 S- 38°31 W) to São Tomé Cape, in Rio de Janeiro State (22°12 S - 41°15 W). Samples were taken in 222 stations, during 4 oceanographic cruises (1996-2002). Sampling was made basically using rectangular dredges, Van Veen grab and a box-corer.

The region presents a rich benthic fauna and flora, especially at areas such as Abrolhos reefs, Vitória-Trindade and Almirante Saldanha seamounts and near Salvador (BA) and São Tomé Cape (RJ). Macroalgae occurred mainly at continental shelf and upper slope, with green algae as the most rich and abundant group, despite the biomass contribution of brown algae in some places. Thirty-one macrobenthic groups were found, with one third occurring in more than 70% of stations. Most organisms belong to epifauna (animals living on the substrate), in part due to the kind of equipment used (basically dredges) and also to the main bottom type found in the region (mainly biogenic substrata, with algae nodules and calcareous sediment). This substrate favors the presence of epifauna, composed mainly by sessile animals such as sponges and corals, the most abundant organisms in terms of biomass (ca. 85%). Infauna (animals that live buried in the sediment) was represented by various taxa of polychaets, sipuculans, echinoderms, small crustaceans and mollusks, the two latter being numerically dominant.

The macrofauna composition and abundance were related to bottom characteristics and local depth, with organisms being dominant in shallow waters (up to 100m depth) with biogenic substrate such as red algae nodules. Environmental heterogeneity given by differences in shelf and slope substrata, the presence of a biogenic bottom, estuaries, coral reefs, seamounts and canyons provides a great variety of microhabitats and it seems to be responsible for high benthic diversity found. Despite the lack of a precise evaluation of the economic potential of benthic living resources, the REVIZEE program provided an excellent species inventory, identifying species with economic value, new species occurrences to Brazilian coast and new species to Science, specially from the outer shelf and continental slope.

Related URL

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Geographic Coverage

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Spatial coordinates

	N: -13.0	S: -22.0	E: -40.0	W: -41.0

Min Depth: 20 M Max Depth: 2076 M

Data Set Citation

Dataset Originator/Creator: Fabio Lang da Silveira and Rubens M. Lopes

Dataset Title: Benthic biodiversity along the central coast in the Brazilian EEZ (OBIS South America, BRAZIL)

Dataset Series Name: REVIZEE Document Series

Dataset Release Date: 2006-09-08

Dataset Release Place: Sao Paulo City

Version: 1.0

Parent DIF

This data set description is a member of a collection. The collection is described in
OBIS.REVIZEE

Temporal Coverage

Start Date: 1996-02-06

Stop Date: 2002-06-28

Location Keywords

OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN

CONTINENT > SOUTH AMERICA > BRAZIL

Data Resolution

Latitude Resolution: 10 m
Longitude Resolution: 10 m
Horizontal Resolution Range: 1 meter - < 30 meters

Science Keywords

BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS

BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > CNIDARIANS > CORALS

ISO Topic Category

BIOTA

OCEANS

Platform

SHIPS

Instrument

SEDIMENT CORERS

GPS > Global Positioning System

BOTTOM TRAWL
DEMERSAL TRAWL

Project

OBIS > OCEAN BIOGEOGRAPHIC INFORMATION SYSTEM

REVIZEE > LIVING RESOURCES IN THE EXCLUSIVE ECONOMIC ZONE

COML > CENSUS OF MARINE LIFE

Quality Mainly specimens. Reference collection of organisms available at different research institutions in Brazil.

Access Constraints None.

Use Constraints Acknowledge the use of specific records from contributing databases in the form appearing in the 'Citation' field thereof (if any); and acknowledge the use of the OBIS facility.

For information purposes, email to obissupport@marine.rutgers.edu the full citation of any publication made (printed or electronic) that cites OBIS or any constituent part.

Recognize the limitations of data in OBIS.

Data Set Progress

COMPLETE

Originating Center

REVIZEE

Data Center

International Ocean Biogeographic Information System

Data Center URL: http://www.iobis.org/

Data Center Personnel
Name: EDWARD VANDEN BERGHE Phone: (732) 932-6555 x 565 Fax: (732) 932-8578 Email: evberghe at marine.rutgers.edu, evberghe at iobis.org Contact Address: Institute of Marine and Coastal Sciences Rutgers University 71 Dudley Road City: New Brunswick Province or State: NJ Postal Code: 08901-8521 Country: USA

Distribution

Distribution Media: HTTP

Distribution Format: OBIS Schema

Fees: None

Personnel

ALEXANDRE MARINO

Role: TECHNICAL CONTACT

Phone: +55 19 3288 0466

Fax: +55 19 3249-0960

Email: marino at cria.org.br

Contact Address:

Centro de Referencia em Informacao Ambiental (CRIA)

Av. Romeu Tortima, 388, Barao Geraldo

City: Campinas SP

Postal Code: 13084-791

Country: BRAZIL

Publications/References

Lavrado, H.P. & Ignacio, B.L. (eds.) 2006. Biodiversidade bentônica da costa central da Zona Econômica Exclusiva brasileira. Rio de Janeiro : Museu Nacional, 2006. (Série Livros; 18) 389 p. ISBN 85-7427-014-8.

List of taxa identified by
Macroalgae (Chapter 2) - pages 67-108
- Valentin, Y.Y.; Gestinari, L.M.S.; Fernandes, D.R.P.

Porifera (Chapter 3) - 109-146
...

Creation and Review Dates

DIF Creation Date: 2006-09-08

Last DIF Revision Date: 2009-01-09

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