Fish assemblage structure of Koycegiz Lagoon–Estuary, Turkey: Spatial and temporal distribution patterns in relation to environmental variation

Akın, Şenol; Buhan, Ekrem; Winemiller, Kirk O.; Yιlmaz, Harun

doi:10.1016/j.ecss.2005.03.019

Cited by 161 publications

(121 citation statements)

References 67 publications

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“…Species plotted closer to the vector with a longer distance from the origin have stronger relationships with the vectors. The species located near the origin either do not show a strong relationship to any of the variables or are found at average values of the environmental variables (Marshall & Elliott, 1998;Akin et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

“…The length of the vector of a given variable on the CCA plots indicates the importance of that variable, and any variable having a correlation coefficient = 0.4/-0.4 is suggested to be biologically important (Rakocinski et al, 1996;Akin et al, 2005). Species plotted closer to the vector with a longer distance from the origin have stronger relationships with the vectors.…”

Section: Discussionmentioning

confidence: 99%

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The spatial pattern of larval fish assemblages in the lower reach of the Yangtze River: potential influences of river–lake connectivity and tidal intrusion

Ren

Song

et al. 2015

Hydrobiologia

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Landscape pattern plays an important role in structuring of larval fish assemblages in large river basins. The lower reach of the Yangtze River includes the river section from the mouth of Poyang Lake, the largest freshwater lake in China, downward to the estuary. We hypothesized that river-lake connectivity at the upstream portion and tidal intrusion at the downstream portion are significant drivers of larval fish assemblages. Larval fish were collected monthly from April 2012 through September 2013 in three locations at Anqing (AQ), Nanjing (NJ), and Jingjiang (JJ). Fifty-six taxa of larval fish were identified with 52 of them determined of species. Larval fish were highly abundant from April through August; the number of species and the abundance were much higher at AQ than at NJ and JJ; the bloom of larval fish at JJ tended to be later than at NJ and AQ. We suggest that the larger number of species and higher abundance of larval fish at AQ reflect the effects of the connectivity of Poyang Lake with the river upstream of AQ, and the delayed bloom of larval fish and the occurrence of estuarine species at JJ reflect the influences of tidal intrusion from the estuary.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The spatial pattern of larval fish assemblages in the lower reach of the Yangtze River: potential influences of river–lake connectivity and tidal intrusion

Ren

Song

et al. 2015

Hydrobiologia

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“…We found that traditional taxonomic metrics were a better indicator of structural changes than were trophic groups or membership in categories of estuarine use. We have demonstrated that the salinity gradient has a key impact on the taxonomic structure of PEC fish assemblages because of the consistent link between estuarine fish fauna along a longitudinal gradient and the longitudinal salinity gradient of the estuary; this type of impact is a general feature among estuaries worldwide (BULGER et al, 1993;JAUREGUIZAR et al, 2004;AKIN et al, 2005;CHAGAS et al, 2006;BARLETTA et al, 2008;VILAR et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Analysis of fish assemblages in sectors along a salinity gradient based on species, families and functional groups

et al. 2013

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A B S T R A C THere we test the effects of the east-west salinity gradient in the subtropical Paranaguá Bay Estuarine Complex (PEC) on the structure of shallow water fish fauna, determined according to taxonomic (families and species) and functional composition metrics. A total of 152 species were observed. The families with the largest number of species were the Sciaenidae, Carangidae, Haemulidae and Gobiidae. The most abundant species were Atherinella brasiliensis, Harengula clupeola, Anchoa januaria and Anchoa tricolor. Marine stragglers dominated in number of species, followed by marine migrants and estuarine species. Most species were zoobenthivores, followed by piscivores and zooplanktivores. Families and species more frequently associated with estuarine conditions dominated in the mesohaline sector, and those more frequently associated with marine conditions dominated in the euhaline sector. The fish assemblages along the estuarine salinity gradient were found to be better characterized by taxonomic metrics than by functional ones. This is most likely because individuals of all functional groups inhabit all salinity sectors, and thus these metrics are not useful for differentiating assemblages along salinity gradients. Our results differ from those of other studies in tropical and subtropical estuaries, which have emphasized the importance of functional groups in determining fish assemblages along salinity gradients. R E S U M ONeste trabalho foi testado o efeito do gradiente de salinidade do eixo-leste oeste do sistema subtropical Complexo Estuarino da Baía de Paranaguá na estrutura dos peixes de águas rasas, determinado de acordo com as métricas taxonômica (famílias e espécies) e de composição funcional. Um total de 152 espécies foi registrado. As famílias com maior número de espécies foram Sciaenidae, Carangidae, Haemulidae e Gobiidae. As espécies mais abundantes foram A. brasiliensis, H. clupeola, A. januaria e A. tricolor. Os visitantes marinhos dominaram em número de espécies, seguidos pelos migrantes marinhos e estuarinos. A maioria das espécies são zoobentívoras, seguidas pelas piscívoras e zooplanctívoras. As famílias e espécies mais relacionadas com condições estuarinas dominaram no setor mesohalino e aquelas mais relacionadas com condições marinhas dominaram no setor euhalino. A métrica taxonômica foi mais eficiente na caracterização das assembleias de peixes ao longo do gradiente estuarino de salinidade do que a funcional. Isso ocorreu principalmente porque indivíduos de todos os grupos funcionais estiveram presentes ao longo de todos os setores de salinidade, invalidando o emprego dessa métrica na diferenciação das assembleias nos diversos setores. Nosso resultado foi diferente do encontrado em outros estuários tropicais e subtropicais, que enfatizaram a importância dos grupos funcionais na estruturação das assembleias de peixes ao longo de um gradiente de salinidade.

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“…On the one hand, introductions of tilapia in Europe appear relatively rare ( Figure 1A) but feral populations have recently been reported in Italy (Bianco and Turin, 2010) and Turkey (Akin et al, 2005). The fate of these populations as well as future introductions may still lie in the hand of decision makers.…”

Section: Discussionmentioning

confidence: 99%

Tradeoffs among Ecosystem Services Associated with Global Tilapia Introductions

Deines

Wittmann

Deines

et al. 2016

Reviews in Fisheries Science & Aquaculture

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Fish assemblage structure of Koycegiz Lagoon–Estuary, Turkey: Spatial and temporal distribution patterns in relation to environmental variation

Cited by 161 publications

References 67 publications

The spatial pattern of larval fish assemblages in the lower reach of the Yangtze River: potential influences of river–lake connectivity and tidal intrusion

The spatial pattern of larval fish assemblages in the lower reach of the Yangtze River: potential influences of river–lake connectivity and tidal intrusion

Analysis of fish assemblages in sectors along a salinity gradient based on species, families and functional groups

Tradeoffs among Ecosystem Services Associated with Global Tilapia Introductions

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