Temporal and spatial variations in tidepool fish assemblages of the northeast coast of Brazil

Cunha, Andrade; Monteiro‐Neto, Cassiano; Nottingham, Mara Carvalho; Pessoa, João

doi:10.1590/s1676-06032007000100016

Cited by 22 publications

(32 citation statements)

References 24 publications

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“…Larger pools, besides having a larger area, exhibit a more temporally constant habitat, allowing less tolerant species to occur, which increases diversity (Rosa et al 1997). However, in our study, the largest tide pools (SF and BI) held a less specious assemblage than BP, which is a tide pool of intermediate size, differing from other studies, where abundance and richness are positively correlated to tide pool volume (Cunha et al 2007). Other factors, such as tide pool isolation, hydrodynamics and algal cover, may interact with volume and area to determine the distribution and structure of fish assemblages inside tide pools (Godinho & Lotufo 2010, Macieira & Joyeux 2011.…”

Section: Discussioncontrasting

confidence: 78%

“…Fishes were then classified according to: (1) level of association with the pools (i.e. permanent, partial or occasional residents) based on Gibson (1982), Mahon & Mahon (1994) and Cunha et al (2007); (2) vertical distribution in the water column (i.e. benthic, nektobenthic or nektonic) according to Lincoln et al (2009); and (3) trophic guild according to Ferreira et al (2004).…”

Section: Study Areamentioning

confidence: 99%

“…Almeida 1973, Rosa et al 1997, Machado et al 2015, but in the last decade this has changed, particularly in the Northeast (e.g. Cunha et al 2007, Cunha et al 2008, Godinho & Lotufo 2010 and Southeast Brazil (e.g. Barreiros et al 2004, Macieira & Joyeux 2011, with many studies focusing on community ecology of tide pools (but see Soares et al 2013 for an ecomorphological approach).…”

Section: Introductionmentioning

confidence: 99%

“…Tide pool fishes can be divided into: (1) true residents, which inhabit these sites permanently including Gobiidae and Blennidae families (Gibson 1982); (2) partial residents, generally juveniles of several families as Labridae (Scarinae), Pomacentridae and Chaetodontidae, in addition to some species of economic interest from families Lutjanidae, Epinephelidae and Haemulidae (Gibson 1982, Mahon & Mahon 1994, Cunha et al 2007); and (3) occasional, those whose occurrence is only accidental or sporadic (Mahon & Mahon 1994, Cunha et al 2007). True residents generally display morphological and/or physiological traits (such as tolerance to salinity changes, and pelvic fins modifications for better stability) as adaptations to permanent life in such peculiar habitats (see Zander et al 1999).…”

Section: Introductionmentioning

confidence: 99%

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Structure and composition of fish assemblages from São Sebastião Channel tide pools, southwestern Atlantic

2016

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Organisms living in tide pools in the intertidal zone are exposed to daily and abrupt changes in temperature, dissolved oxygen, pH and salinity, during tidal cycles. Fish assemblages in tide pools are usually very different from those in surrounding areas; resident species exhibit morphological and ecological adaptations to deal with such a variable environment. In this study, we described the environmental conditions and the fish diversity and composition from four tide pools at the continental margin of the São Sebastião Channel, São Sebastião (23º41'-23º54'S; 45º19'-45º30'W), in southeastern Brazil. Monthly, from January to December 2011, we sampled four tide pools (12 samples per pool), applying a standard protocol to record environmental variables, and visual censuses to record abundance, richness and composition of fish assemblages. Environmental and fish data were compared among tide pools and periods throughout the year (warm and cold) using both univariate and multivariate analyses of variance. Tide pools showed significant environmental differences, mainly in area, volume and complexity of substrata. We observed 13 species of fishes (10 families), which belong to five trophic guilds (roving herbivores, territorial herbivores, mobile invertebrate feeders, omnivores and carnivores). Density and richness of fish were almost constant during the studied period, except for a reduction in fish density in São Francisco's Beach during a cold period. However, assemblages from the sampled tide pools differed from each other in composition and relative abundance of species, resulting in four distinct assemblage structures. Bathygobius soporator was the dominant species in most of the tide pools, corresponding to 66% of all recorded fish. The tide pool from Baleeiro's Point was intermediate in size, but was covered by a complex algae community and supported the most diverse fish assemblage, suggesting that habitat complexity may contribute to the diversity of fish.

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Section: Discussioncontrasting

confidence: 78%

Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Structure and composition of fish assemblages from São Sebastião Channel tide pools, southwestern Atlantic

2016

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“…The area and volume of hard-bottom pools have been obtained through the calculation of basic geometric forms (e.g., squares and cubes - Cunha et al 2007). Although this procedure is also theoretically applicable for soft-bottom pools larger than 50 m 2 , it has not been carefully described and evaluated for such pools yet.…”

mentioning

confidence: 99%