Fish assemblages across the marine to low salinity transition zone of a temperate estuary

Martino, E. J.; Able, Kenneth W.

doi:10.1016/s0272-7714(02)00305-0

Cited by 210 publications

(151 citation statements)

References 48 publications

Supporting

Mentioning

124

Contrasting

Unclassified

Order By: Relevance

“…No distinctive fish assemblages for each of the zones have been observed, as also reported by Harris et al (2001) in the ocean-estuarine gradient of the Northern KwaZulu-Natal Coast (South Africa) and by Martino and Able (2003) in the ocean-riverine gradient of the Mullica River-Great Bay estuary (USA). However, four groups of sampling stations were defined by the CA (Fig.…”

Section: Spatial and Temporal Variation In Juvenile Fish Assemblagessupporting

confidence: 58%

“…Blaber and Blaber 1980, Potter et al 1990, Martino and Able 2003, Cousseau et al 2001. Juveniles were collected every 15 days from September 2009 to April 2010.…”

Section: Biological and Environmental Samplingmentioning

confidence: 99%

“…5). Though salinity has been categorized as an important factor in detecting estuaries during the recruitment process of juveniles (Blaber andBlaber 1980, Martino andAble 2003), olfactory cues associated with riverine inputs, and hence estuarine outflow, stimulate the immigration of euryhaline fishes into estuaries and not salinity per se (Whitfield 1994).…”

Section: Juvenile Fish Assemblages and Relationships With The Environmentioning

confidence: 99%

See 2 more Smart Citations

Recruitment of juvenile fishes into a small temperate choked lagoon (Argentina) and the influence of environmental factors during the process

et al. 2015

View full text Add to dashboard Cite

Summary: Juvenile fishes were sampled every 15 days from September 2009 to April 2010 along the marine-estuarine gradient (surf zone, estuary and a freshwater stream) of the Mar Chiquita lagoon, Argentina. The temporal variations of juvenile assemblages in spring-summer and the environmental variables related to the spatial and temporal patterns were analysed. Four groups of sampling stations were defined, indicating differences in fish composition among zones during the springearly summer period (Groups I to III), while the composition of juvenile fishes was homogeneous along the marine-estuarine gradient during the late summer-early autumn period (Group IV). Platanichthys platana and Ramnogaster arcuata (Group A) and Odontesthes argentinensis and Brevoortia aurea (Group B) contributed most to the temporal differences observed. The three first species reached this estuarine system in spring, although with lower abundances than in early summer, while B. aurea was dominant in late summer-early autumn, showing different periods of recruitment of these species into the lagoon. After factoring out variation due to shared spatial-temporal-environmental factors (4.43%), canonical correspondence analysis (CCA) showed that temporal factors had an almost five times greater contribution (15.15%) than spatial factors (2.85%) and almost twice as great as the pure environmental factors (8.11%) to explaining the variation in abundance of the juvenile fishes. From the significant environmental variables incorporated in the CCA, wind direction contributed more than water temperature, salinity or transparency in explaining data variability. Indeed, most species were related to "onshore winds" and therefore the importance of wind in the successful recruitment of juveniles into this shallow and micro-tidal estuary is discussed.Keywords: nursery grounds; fish; juvenile; brackish water environment; surf zone; environmental factors; winds; Mar Chiquita coastal lagoon.Reclutamiento de juveniles de peces a una pequeña laguna semi-obturada de clima templado (Argentina) y la influencia de factores ambientales durante el proceso Resumen: Los juveniles de peces se recolectaron cada 15 días desde septiembre de 2009 a abril de 2010 a lo largo de un gradiente marino-estuarino (en una zona de rompiente, estuario y un arroyo de agua dulce) de la laguna costera Mar Chiquita (Argentina). Se analizaron las variaciones temporales de las asociaciones de juveniles durante el periodo primavera-verano y las variables ambientales que estuvieron relacionadas con los patrones espaciales y temporales. Fueron definidos cuatro grupos de estaciones de muestreo indicando diferencias en la composición de peces entre zonas durante el período de primaveraverano temprano (grupos I a III), mientras que la composición de peces juveniles fue homogénea a lo largo del gradiente marino-estuarino durante el período de verano tardío-otoño temprano (grupo IV). Platanichthys platana y Ramnogaster arcuata (Grupo A), y Odontesthes argentinensis y Brevoortia aurea (Grupo B) fu...

show abstract

Section: Spatial and Temporal Variation In Juvenile Fish Assemblagessupporting

confidence: 58%

“…Blaber and Blaber 1980, Potter et al 1990, Martino and Able 2003, Cousseau et al 2001. Juveniles were collected every 15 days from September 2009 to April 2010.…”

Section: Biological and Environmental Samplingmentioning

confidence: 99%

Section: Juvenile Fish Assemblages and Relationships With The Environmentioning

confidence: 99%

See 1 more Smart Citation

Recruitment of juvenile fishes into a small temperate choked lagoon (Argentina) and the influence of environmental factors during the process

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Despite the known importance of these habitats, which support a high abundance and diversity of juvenile fishes due to their high productivity and structural complexity (Ter Morshuizen and Whitfield 1994, Martino and Able 2003, Sheppard et al 2012, the value of vegetated areas relative to other adjacent habitat types on offer in estuarine nurseries leaves room for further enquiry.…”

Section: Introductionmentioning

confidence: 99%

Habitat partitioning by juvenile fishes in a temperate estuarine nursery, South Africa

Edworthy¹,

Strydom²

2016

Sci. Mar.

View full text Add to dashboard Cite

Summary:Multiple habitats were investigated in a known fish nursery area to further understand habitat partitioning among juveniles in the lower reaches of the warm temperate, permanently open Swartkops Estuary, South Africa. Fishes were collected using a 30-m seine net with a mesh size of 10 mm in sand, mud, creek and vegetated habitat types. Each habitat type was sampled in two locations twice per season from February 2013 to January 2014. Shallow-water creeks and vegetated habitats with coverage of Zostera capensis and Spartina maritima were found to be important use areas for numerous solely estuarine and marine estuarine-dependent species. This was evidenced by the high species diversity, abundance and size range per species occurring in these habitats. Seasonal trends were similar to those in previous studies worldwide, where higher abundances of juveniles of marine estuarine-dependent species coincided with summer recruitment into estuarine nurseries. However, recruitment appears to begin as early as late winter in some species, a phenomenon probably linked to a warming climate. Both resident species and those utilizing the area as a nursery area show a large degree of plasticity in habitat use in the lower reaches of the estuary, which became apparent when multiple habitats were compared. The drivers of these patterns involve a complex interaction of species, habitat type, behaviour, feeding, predator avoidance and physicochemical factors occurring in the estuary.Keywords: Ichthyofauna; nursery grounds; community composition; estuary association; recruitment. Segregación de hábitat en juveniles de peces en una región de cría de un estuario templado, SudáfricaResumen: Con objeto de entender mejor la segregación de hábitats en juveniles de peces se investigaron múltiples hábitats en una zona de cría en la parte baja del estuario del Swartkops (Sudáfrica) (de tipo templado-cálido y abierto permanentemente). Los peces fueron recolectados con una red de cerco de 30 m, con malla de 10 mm de abertura, sobre fondos de arena, barro, arroyos yhábitats con vegetación. Cada tipo de hábitat se muestreó en dos lugares, dos veces por estación, de febrero 2013 a enero 2014. Se observó que los arroyos de aguas poco profundas y los hábitats con cobertura de Zostera capensis y Spartina maritima eran áreas importantes para numerosas especies exclusivamente estuáricas y para especies marinas dependientes de los estuarios. Esto se evidenció por la gran diversidad de especies, abundancia y rango de tallas de las especies que aparecieron. Las tendencias estacionales fueron similares a los de estudios anteriores en todo el mundo, donde las más altas abundancias de juveniles de las especies marinas que dependen de los estuarios coincidieron con el reclutamiento de verano dentro del estuario. Sin embargo, en algunas especies el reclutamiento parece comenzar más pronto, a finales del invierno, un fenómeno probablemente ligado al calentamiento climático. Tanto las especies residentes en el estuario como las que lo utilizan como área...

show abstract

“…Establishment of the Gulf of Guayaquil´s coastal transition zone would be beneficial for guiding the policies and decision-making processes oriented to the better utilization and management of the natural resources for respectively aquaculture and agricultural development, taking at the same time care for the conservation of the ecology of the estuarine lagoon environment. Great biological productivity in the gulf waters with the presence of mangrove swamps on the estuary surely limits the organic matter contribution from the incoming rivers (Martino & Able, 2003). The influence of various marine currents, the convergence of different water masses, the predominant estuarine conditions, and the mixing of marine and fluvial environments have been researched (CAAM, 1996).…”

Section: Introductionmentioning

confidence: 99%

Delimitation of the Coastal Transition Zone in the Gulf of Guayaquil, Ecuador

Pozo¹,

Jordán

Sanfeliu³

2012

JGG

View full text Add to dashboard Cite

The article presents a methodology for the delimitation of the coastal transition zone (CTZ) and the identification of zones with distinct soil properties in the Gulf of Guayaquil (GG), Ecuador. The Gulf was chosen as study area for its urban, economic and ecological potential, more in particular for its rich marine and agricultural resources, and biodiversity. Soil physical and chemical methods, such as soil salinity indices, physical and chemical parameters, coupled with multivariate analysis enabled the delimitation of the CTZ and the grouping of the studied soil transets in three clusters with distinct properties, located in the GG from the limit of the mangrove swamp. Whereas the average conductance in the swamp area is around 27.17 mS cm -1 , inland to the isoline called the coastal transit zone soil salinity on average is 4 mS cm -1 . The coastal transition zone has an average width of 4.2 km, which can be characterized by three clusters. Clusters 1 and 2 show similarities in their physical and chemical soil parameters, clearly different from the soil properties of cluster 3. The characteristics of each cluster is related to its location within the study area.

show abstract

Fish assemblages across the marine to low salinity transition zone of a temperate estuary

Cited by 210 publications

References 48 publications

Recruitment of juvenile fishes into a small temperate choked lagoon (Argentina) and the influence of environmental factors during the process

Recruitment of juvenile fishes into a small temperate choked lagoon (Argentina) and the influence of environmental factors during the process

Habitat partitioning by juvenile fishes in a temperate estuarine nursery, South Africa

Delimitation of the Coastal Transition Zone in the Gulf of Guayaquil, Ecuador

Contact Info

Product

Resources

About