Dynamics of littoral fishes and decapods along a coastal river-estuarine gradient

Peterson, Mark S.; Ross, Stephen T.

doi:10.1016/0272-7714(91)90085-p

Cited by 141 publications

(101 citation statements)

References 31 publications

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“…This coenocline is similar to patterns observed in other temperate and tropical zone coastal faunas (Weinstein et al 1980, Rogers et al 1984, Smith et al 1984, Felley 1987, Peterson & Ross 1991, Winemiller & Leslie 1992, and is characterized by a series of species supplements and replacements in successive downstream locations. Fish assemblages generally grade smoothly into each other with one notable exception; the freshwater interface is a boundary with a markedly increased rate of species turnover.…”

Section: Community Patternssupporting

confidence: 81%

See 1 more Smart Citation

Correspondence between environmental gradients and summer littoral fish assemblages in low salinity reaches of the Chesapeake Bay, USA

Wagner¹,

Austin

1999

Mar. Ecol. Prog. Ser.

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Section: Community Patternssupporting

confidence: 81%

“…Salinity gradients are often conspicuous in estuaries, and have been likened to a 'physiological sieve' (Remmert 1983) which may order habitats from benign to harsh with respect to individual tolerances (Peterson & Ross 1991). Numerous models of large-scale species distribution with relation to salinity have been descnbed (e.g.…”

Section: Upper Estuarymentioning

confidence: 99%

Correspondence between environmental gradients and summer littoral fish assemblages in low salinity reaches of the Chesapeake Bay, USA

Wagner¹,

Austin

1999

Mar. Ecol. Prog. Ser.

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“…However, characteristics of this estuary fish community seem to be peculiar to that system as dominance of gobies in the shallow areas and Sciaenidae in middle estuary. We supported here a joint assessment of factors that influence the distribution of species within the estuary like physical-chemical gradients (Maes et al 1998) and depth (Hyndes et al 1999) besides those already studied as tolerance to salinity (Marshall & Elliot 1998, Barletta et al 2005, temperature (Peterson & Ross 1991, Jaureguizar et al 2003, Jaureguizar et al 2004; and turbidity (Cyrus & Blaber 1992) should be incorporated into studies aiming to understand the ichthyofaunistic patterns of the Brazilian estuaries. …”

Section: Discussionsupporting

confidence: 66%

Estuarine ichthyofauna of the Paraguaçu River, Todos os Santos Bay, Bahia, Brazil

2010

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Estuaries are areas of recognized importance in the development and sanctuaries of fishes and also a great source of fishing resources. This article presents an inventory of fishes from the Paraguaçu River estuary, Todos os Santos Bay, Bahia, Brazil. 28 points comprising the saline sections that may exist in a tropical estuary were sampled quarterly from March 2009 to February 2010 with the aid of bottom gill nets, surface gill nets, seine net and casting net. A total of 4.097 individuals were captured, belonging to 7 species of Chondrichthyes and 117 species of Actinopterygii (83 genera and 49 families). Most of the geographical extent of the estuary was sampled by assessing large spatial variability in fish assemblage structure. The curve of species accumulation (rarefaction) had stabilization with ½ of the samples. The general structure of the assemblage is described and commented trough evidences for a new spatial organization of the fish fauna due to dam effects upstream the estuary. Resumo: Estuários são áreas de reconhecida importância no desenvolvimento e refúgio dos peixes e também grande fonte de recursos pesqueiros. Este artigo apresenta um inventário dos peixes do estuário do Rio Paraguaçu, Baía de Todos os Santos, Bahia, Brasil. 28 pontos constituindo as três seções salinas que pode haver em um estuário tropical foram amostradas trimestralmente de março de 2009 a fevereiro de 2010 com auxílio de redes de espera de fundo, de superfície, redes de arrasto manual e tarrafas. Um total de 4.097 indivíduos foram capturados, pertencendo a 7 espécies de Chondrichthyes e 117 espécies de Actinopterygii (83 gêneros e 49 famílias). A maioria da extensão territorial do estuário foi amostrada para acessar maior variabilidade espacial na estrutura da assembléia de peixes. A curva de acumulação de espécies (rarefação) apresentou estabilização com ½ das amostras. A estrutura geral da assembléia é descrita e comentada através de evidências para uma nova organização espacial da fauna de peixes devido a efeitos de barragem a montante do estuário. Palavras-Chaves: inventário, peixes estuarinos, distribuição espacial, efeitos a montante, nordeste brasileiro. Biota Neotrop., vol. 10, no. 4 Keywords: inventory, estuarine fishes, spatial distribution, effects upstream, brazilian northeast. REIS-FILHO Material and MethodsFishes were collected at 28 points within the Paraguaçu River estuary with quarterly samples between March 2009 and February 2010 (Figure 1). Several types of collectors were used: for marginal environments and with depths up to 3 m, trawl manual (12 m × 2 m with 12 mm mesh), gillnets (100 m × 3 m with 15 mm mesh) and flue (casting net ) (10 mm mesh). For environments with depth between 4 and 20 m, bottom gill nets (300 m × 3 m with 20 mm, 30 mm, 40 mm, 50 mm and 60 mm mesh) and surface gill nets (200 m × 4 m with 15 mm mesh) were used. In order to evaluate the ichthyofauna distribution in the estuary, this one was segmented into three sections (lower, middle and upper).

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“…Additionally, catches of species such as Gulf menhaden (a species that dominated our biomass estimates) are known to vary seasonally, primarily because they migrate offshore during late fall to overwinter and reproduce (Patillo et al 1997). Given that seasonal physiochemical conditions and spatial gradients are known to affect the distribution of fish in shallow-water estuaries (Peterson and Ross 1991;Gelwick et al 2001;Akin et al 2003), it was not surprising that we found seasonal and regional variations in biomass along the salinity gradient in Barataria Bay.…”

Section: Discussionmentioning

confidence: 82%

Seasonal Estimates of Fish Biomass and Length Distributions Using Acoustics and Traditional Nets to Identify Estuarine Habitat Preferences in Barataria Bay, Louisiana

Boswell

Wilson²,

Macrae

et al. 2010

Mar Coast Fish

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We conducted hydroacoustic, gill‐net, and push trawl surveys to quantify changes in habitat‐specific fish size and biomass in shallow (<2‐m) estuarine waters of Barataria Bay, Louisiana, in order to evaluate essential fish habitat. Surveys were conducted monthly between June 2003 and May 2004 among regions located along a north—south salinity gradient. The fish length distributions derived from the gill‐net and push trawl catches showed moderate concordance with the measured target strength distributions, indicating that our integrated approach more effectively characterized the fish community than using only a single gear type would have. Acoustic estimates showed that biomass was highest during fall (mean ± SE; 2.30 ± 0.27 g/m3) and next highest in spring (1.49 ± 0.20 g/m3), with relatively low biomass during summer (0.70 ± 0.14 g/m3) and winter (0.86 ± 0.14 g/m3); pelagic fish biomass from nets was low during winter (53.9 ± 14.9 grams per unit effort [gpue]) but relatively high in fall (846.1 ± 207.2 gpue), spring (774.3 ± 175.5 gpue), and summer (620.3 ± 140.7 gpue). Oyster habitat supported a greater biomass of pelagic fish (acoustic survey: 1.54 ± 0.15 g/m3; gill‐net survey: 467.3 ± 81.0 gpue) than soft‐bottom habitat (acoustic: 0.94 ± 0.11 g/m3; gill‐net: 315.2 ± 54.8 gpue). Among regions, the greatest biomass of pelagic fish was observed at polyhaline stations (acoustic: 1.78 ± 0.19 g/m3; gill‐net: 654.3 ± 136.5 gpue), followed by mesohaline (acoustic: 1.18 ± 0.15 g/m3; gill‐net: 378.5 ± 79.1 gpue) and oligohaline stations (acoustic: 0.82 ± 0.12 g/m3; gill‐net: 228.3 ± 50.2 gpue). Gill‐net biomass was linearly related to the acoustic biomass estimates of small pelagic fish. The complementary, multigear approach proved to be useful in evaluating habitat use and may be particularly helpful in identifying and monitoring ecosystem reference points to evaluate change and in standardizing ecosystem‐based assessment approaches.

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Dynamics of littoral fishes and decapods along a coastal river-estuarine gradient

Cited by 141 publications

References 31 publications

Correspondence between environmental gradients and summer littoral fish assemblages in low salinity reaches of the Chesapeake Bay, USA

Correspondence between environmental gradients and summer littoral fish assemblages in low salinity reaches of the Chesapeake Bay, USA

Estuarine ichthyofauna of the Paraguaçu River, Todos os Santos Bay, Bahia, Brazil

Seasonal Estimates of Fish Biomass and Length Distributions Using Acoustics and Traditional Nets to Identify Estuarine Habitat Preferences in Barataria Bay, Louisiana

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