Cossura yacy sp. nov. (Cossuridae, Annelida) from a tropical Brazilian estuary

Sousa, Lorena Karine Santos; Júnior, Miodeli Nogueira; Cutrim, Marco Valério Jansen; Oliveira, Verônica Maria de

doi:10.1590/1678-4766e2019021

Cited by 2 publications

(4 citation statements)

References 6 publications

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“…For polychaete groups, Cossura had positive correlation with salinity, very fine sand (0.063 mm) and very coarse sand (1 mm); Glycera positively correlated to very fine sand (0.063 mm); Micronepthys positively correlated to 2 mm and Poecilochaetus positively correlated to course sand (0.5 mm). Cossura polychaete is commonly found in muddy sediment, and previously recorded in Bay of Bengal (Smitha et al, 2017) and in dredge disposal zone in Brazilian estuary (Sousa et al 2019). Glycera bloodworm is common in smaller grain-sized sediment where it is easier to transverse to catch prey, and previously recorded in sediments of Sepetiba Bay, Brazil, with higher percentage on smaller-sized grain such as mud and silt (Mattos et al, 2013).…”

Section: Correlation Of Distribution and Diversity Of Benthic Macroinvertebrate Community With Environmental Parametermentioning

confidence: 65%

Distribution of Benthic Macroinvertebrates in Seafloor Northward of Pulau Indah, Klang

Kasihmuddin¹,

Cob²

2021

JST

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An assessment of community of benthic macroinvertebrates in waters northwards of Pulau Indah, Klang was made with the main objective to determine distribution and diversity of benthic macroinvertebrates as well as to establish possible correlation between the community’s distributions with environmental parameters. The sediments were obtained via Ponar Grab (0.023 m2 mouth area), followed by filtration (500 μm) and laboratory sorting in order to extract all specimens from sediments. The specimens were identified to the lowest taxonomic hierachy as possible. The physical parameters such as organic carbon (TOC) and grain size distributions were analysed. A total of 775 annelids, 15 arthropods, 12 echinoderms and 32 molluscs individuals were identified and recorded in six stations overall. Family Cirratulidae accounted to the highest numbers of the Annelids (n=358), whilst Cerithidae recorded as highest numbers of Molluscs. Station 5, 6 and 1 recorded the highest diversity index (H’=2.1845), evenness index (J’=0.6316) and richness index (Dmn=22.0454) respectively. Principal Component Analysis indicated sediment particle size as the major connector on all stations, with different station correlated to certain sizes of sediment particle. Pearson correlation analysis showed positive correlations between environmental parameters with eight benthic taxa in this study, with most correlations were on specific sediment particle size. As the study of benthic community is still inadequate in most of Malaysians waters, particularly in highly industrialised area such as waters in Port Klang, this study can serve as a starting point for any future studies concerning ecological disturbance affecting benthic community in Malaysian waters.

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Section: Correlation Of Distribution and Diversity Of Benthic Macroinvertebrate Community With Environmental Parametermentioning

confidence: 65%

Distribution of Benthic Macroinvertebrates in Seafloor Northward of Pulau Indah, Klang

Kasihmuddin¹,

Cob²

2021

JST

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“…During the past 20 years, eight new species have been described. These descriptions were produced by revisions of museum collections [136,138] or by exploring new areas such as northeastern Venezuela [135], the Congo deep-sea fan [145], and northern and northeastern Brazilian tropical estuaries [36]. The number of species described per decade is shown in Figure 2C.…”

Section: Diversity and Phylogenymentioning

confidence: 99%

“…One of the reasons for this may be the deficiency of information on species morphology and incompleteness of descriptions. Many species are known only from single or a few incomplete specimens; descriptions are frequently insufficient and sometimes use invalid characteristics (such as the number of achaetous segments or segments with uniramous parapodia), whereas the most important characteristics of those species remain unknown (see [36,138] for review). The second reason is the lack of molecular genetic data for cossurids.…”

Section: Diversity and Phylogenymentioning

confidence: 99%

“…The current use of mesh sizes of 500 µm (or even finer) have revealed that cossurids are actually abundant and often the dominant species in many areas such as the Atlantic coast of France and Spain [141,155]. All cossurids are marine, but some species inhabit estuaries and tolerate reduced salinity as well as substantial changes in salinity, e.g., Cossura coasta [156,157], C. delta [140,[158][159][160], C. yaci [36], and C. pygodactylata [161]. Ecological differences can indicate presence of cryptic species.…”

Section: Biology and Ecologymentioning

confidence: 99%

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Still Digging: Advances and Perspectives in the Study of the Diversity of Several Sedentarian Annelid Families

et al. 2021

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Sedentarian annelids are a diverse and heterogeneous group of marine worms representing more than 8600 species gathered in ca. 43 families. The attention brought to these organisms is unevenly distributed among these families, and the knowledge about them sometimes scarce. We review here the current knowledge about the families Acrocirridae, Cirratulidae (including Ctenodrilidae), Cossuridae, Longosomatidae, Paraonidae, and Sternaspidae in terms of biodiversity as well as the evolution of the taxonomy and systematics of each group. We present the challenges faced when studying these organisms and compare methodologies across groups and perspectives in future research.

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Cossura yacy sp. nov. (Cossuridae, Annelida) from a tropical Brazilian estuary

Cited by 2 publications

References 6 publications

Distribution of Benthic Macroinvertebrates in Seafloor Northward of Pulau Indah, Klang

Distribution of Benthic Macroinvertebrates in Seafloor Northward of Pulau Indah, Klang

Still Digging: Advances and Perspectives in the Study of the Diversity of Several Sedentarian Annelid Families

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