Temporal and spatial macrofaunal community changes along a salinity gradient in seagrass meadows of Akkeshi-ko estuary and Akkeshi Bay, northern Japan

Yamada, Katsumasa; Hori, Masakazu; Tanaka, Yoshiyuki; Hasegawa, Natsuki; Nakaoka, Masahiro

doi:10.1007/s10750-007-0767-6

Cited by 61 publications

(80 citation statements)

References 44 publications

(60 reference statements)

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“…related to the seagrass, such as coverage, biomass, and leaf length, which increase the complexity of the habitat and its superficial area; as well as predation, competition, and food availability) and physical factors (e.g. dissolved oxygen, light, sedimentation rate, wind disturbance) (BitterSoto, 1999;Bostrom & Bonsdorff, 2000;Jiménez et al, 2005;Yamada et al, 2007). Comparatively, the information regarding Halodule spp.…”

Section: Palabras-clavementioning

confidence: 99%

Composition and abundance of decapod crustaceans in mixed seagrass meadows in the Paraguaná Peninsula, Venezuela

Mariño

Mendoza

López-Sánchez

2018

Iheringia, Sér. Zool.

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ABSTRACT. Thalassia testudinum and Halodule wrigthii are the dominant seagrasses in the Caribbean, being common across shallow shorelines, either as monospecific or as intermixed meadows. Among the macrofauna associated with these beds, crustaceans are considered essential for the whole ecosystem functioning. However, knowledge about the associated community of decapod crustaceans in assemblages of T. testudinum and H. wrigthii is still scarce, particularly outside of protected areas. Here we report eight new decapod species for the Paraguaná Peninsula (Falcón State, Venezuela) Manning & Chace, 1971. These records represent habitat extensions and fill gaps in the geographical distribution of the species along the northern coast of South America. Furthermore, we found that statistical differences in decapod species abundance and composition are likely to be caused by the joint action of coverage and heterogeneity of the beds. Our results indicate that typical Caribbean species were the most influential in the community; nevertheless, the abundance of juvenile Penaeus schmitti Burkenroad, 1936 was notable, since they have rarely been found in these habitats. This finding highlights the role of non-protected areas as nursery habitats for economically important species. Our results show that seagrass meadows in the Paraguaná Peninsula reflect overall good health when compared to other Caribbean zones, representing an important habitat for the maintenance of crustacean populations.KEYWORDS. Caridean and penaeid shrimps, new records, Falcón state, Halodule, Thalassia.RESUMEN. Composición y abundancia de crustáceos decápodos en praderas mixtas de hierbas marinas en la península de Paraguaná, Venezuela. Thalassia testudinum y Halodule wrigthii son las hierbas marinas dominantes en el Caribe, siendo comunes en costas someras, tanto en monocultivos como en cultivos mixtos. Entre la macrofauna asociada a estas comunidades, los crustáceos son considerados esenciales para el funcionamiento del ecosistema. Sin embargo, el conocimiento sobre la comunidad de crustáceos decápodos asociada a praderas mixtas de T. testudinum y H. wrigthii es escaso, en particular fuera de zonas protegidas. En este trabajo presentamos ocho nuevas especies de decápodos para la Península de Paraguaná (estado Falcón, Venezuela) asociados a praderas mixtas de hierbas marinas: Achelous tumidulus Stimpson, 1871, Alpheus floridanus Kingsley, 1878, Chorinus heros (Herbst, 1790), Clibanarius antillensis (Stimpson, 1859), Clibanarius sclopetarius (Herbst, 1796), Latreutes parvulus (Stimpson, 1866), Panopeus occidentalis Saussure, 1857, y Processa fimbriata Manning & Chace, 1971. Estos registros representan extensiones de hábitat y completan brechas en la distribución geográfica de las especies a lo largo de la costa septentrional de Sudamérica. Diferencias estadísticas en la abundancia y composición de las especies de decápodos fueron posiblemente causadas por la acción conjunta de cobertura y heterogeneidad de las praderas. Las especies más influyentes e...

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Section: Palabras-clavementioning

confidence: 99%

Composition and abundance of decapod crustaceans in mixed seagrass meadows in the Paraguaná Peninsula, Venezuela

Mariño

Mendoza

López-Sánchez

2018

Iheringia, Sér. Zool.

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“…A small gastropod, Lacuna decorata Adams, is one of the most dominant species in the macrobenthic communities in the coastal areas of Hokkaido, but it also occurs densely on the leaves of seagrass and the thalli of macroalgae that grow thickly , Kanamori et al 2004, Yamada et al 2007. It is generally supposed that it utilizes the leaves of seagrass and the thalli of macroalgae as the sites to feed the epiphytes attached on them as a major part of its diet.…”

Section: Introductionmentioning

confidence: 99%

Possibility of direct utilization of seagrass and algae as main food resources by small gastropod, Lacuna decorata, in a subarctic lagoon, Hichirippu, eastern Hokkaido, Japan with stable isotope evidences of carbon and nitrogen

Kajihara

Komorita

Hamada

et al. 2010

Plankton Benthos Res

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Abstract:The small gastropod, Lacuna decorata Adams, living on macrophytobenthos or surface sediment, is one of the most dominant species of macrozoobenthos in Hichirippu lagoon covered with seagrass and macroalgae, eastern Hokkaido, Japan. We measured the standing stocks of primary producers and macrozoobenthos, and determined the stable carbon and nitrogen isotope ratios of the primary producers and L. decorata. With these results, we identify the main food items for L. decorata and discuss the feeding strategy of the small gastropod. This gastropod occupied about 64% in density and about 25% in biomass of the macrozoobenthos at all six sampling stations in the lagoon. It occurred densely on the surface of the sediment with dense patches of benthic microalgae (BMA), which contained extremely high levels of Chl.-a between 84 to 226 mg m Ϫ2 throughout the period of this study. Nevertheless, the stable isotope signatures of carbon and nitrogen of this gastropod clearly show the direct utilization of organic matter derived from seagrass, Zostera japonica, in the areas where the seagrass luxuriated. However, it shows also a flexible feeding strategy in food preference. It fed green algae such as Ulva pertusa and Urospora wormskioldii in the areas where the seagrass grew scarcely.Key words: food resource, gastropod, green algae, Lacuna decorata, lagoon, seagrass, stable isotope, Zostera japonica * Corresponding author: Rumiko Kajihara; E-mail, rmk-kjhr@ees.hokudai.ac.jpThe description of feeding activities of the dominant species in the macrobenthic communities is important to follow the material or energy transportation from the primary producers to the primary consumers (the secondary producers) in the benthic ecosystem. However, it is often not easy to observe the feeding activities of small macrobenthic animals such as L. decorata and to identify their main food items by direct observation of feeding behaviors. For the description of food chain in the marine ecosystem, the techniques of stable isotope analysis have become popular recently, since the accumulation of empirical results on the carbon and nitrogen stable isotope ratios (d 13 C and d 15 N) has revealed that each primary producer, such as phytoplankton, benthic microalgae, seagrass and macroalgae, has a unique range of the stable carbon isotope ratios (Fry & Sherr 1984, France 1995, animals have a slightly enriched carbon stable isotope ratio (0.8Ϯ1.1‰, d13 C) to those of their main food items, and the enrichment of nitrogen stable isotope ratio between two different trophic levels in the food chain is relatively constant (d 15 N: 3.4Ϯ1.1‰) (DeNiro & Epstein 1978, Minagawa & Wada 1984. The determination of carbon and nitrogen isotope ratios of the small gastropod, L. decorata, also seems to be helpful for identification of main food items, particularly because it occurs in the two different habitats on the sediment of the sea floor and on the leaves of seagrass or the thalli of macroalgae.We have studied the structure of lagoon ecosystems in eastern Ho...

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“…All sampling was performed under these conditions. We targeted 183 mobile invertebrates and excluded some species with remarkably higher mobility and less 184 dependency on eelgrass habitat, such as mysids and decapods (Yamada et al, 2007b), which 185 were not quantitatively collected by our method (see below). 186 We measured water temperature and salinity once at each station using a memory sensor 187 (AAQ-175 RINKO, JFE Advantech Co. Ltd., Japan).…”

mentioning

confidence: 99%

“…Among 108 them, microalgae, the branched red algae and the spirorbid polychaetes are dominant in eelgrass 109 beds for a long term, between early summer and late fall, with the peak of abundance between 110 August and September (Hamamoto & Mukai, 1999; Kasim & Mukai, 2006; Hasegawa, Hori & 111 Mukai, 2007; Momota, unpublished data). Previous studies on benthic invertebrate assemblages 112 in the Akkeshi-ko estuary and Akkeshi Bay have focused on their variability in relation to the 113 salinity gradient (Yamada et al, 2007a;Yamada et al, 2007b). In addition to salinity, the spatial 114 heterogeneity of other abiotic/biotic factors (e.g.…”

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confidence: 99%

Influence of different types of sessile epibionts on the community structure of mobile invertebrates in an eelgrass bed

Momota

Nakaoka

2016

Preprint

Self Cite

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The variation in the biomass, abundance and diversity of mobile invertebrates in eelgrass (Zostera marina) beds has been examined in relation to various abiotic and biotic factors, such as water temperature, salinity, eelgrass biomass and epiphytic microalgae presence.However, the importance of sessile epibionts, such as macroalgae and calcific spirorbid polychaetes attached to eelgrass blades, has not been the focus of previous studies. In the present study, we examined the effects of three different sessile epibionts, namely, branched red algae, filamentous green algae, and calcific spirorbid polychaetes, on the biomass and diversity of mobile invertebrates in the eelgrass beds of Akkeshi in Northeastern Japan. The relationships of the dominant mobile invertebrate biomass, the total biomass of mobile invertebrates and the species diversity to multiple abiotic and biotic variables were analyzed using a linear mixed model. Our results show that largesized epibiotic organisms can be good predictors of the variation in the total biomass, species richness and species diversity of mobile invertebrates and the biomass of major dominant species, especially for species that have a relatively high dependency on eelgrass blades. These results suggest that the different functional groups of sessile epibionts have significant roles in determining the biomass and diversity of mobile invertebrates in eelgrass beds. The variation in the biomass, abundance and diversity of mobile invertebrates in eelgrass 28 (Zostera marina) beds has been examined in relation to various abiotic and biotic factors, such as 29 water temperature, salinity, eelgrass biomass and epiphytic microalgae presence. However, the 30 importance of sessile epibionts, such as macroalgae and calcific spirorbid polychaetes attached to 31 eelgrass blades, has not been the focus of previous studies. In the present study, we examined the 32 effects of three different sessile epibionts, namely, branched red algae, filamentous green algae, 33 and calcific spirorbid polychaetes, on the biomass and diversity of mobile invertebrates in the 34 eelgrass beds of Akkeshi in Northeastern Japan. The relationships of the dominant mobile 35 invertebrate biomass, the total biomass of mobile invertebrates and the species diversity to 36 multiple abiotic and biotic variables were analyzed using a linear mixed model. Our results show 37 that large-sized epibiotic organisms can be good predictors of the variation in the total biomass, 38 species richness and species diversity of mobile invertebrates and the biomass of major dominant 39 species, especially for species that have a relatively high dependency on eelgrass blades. These 40 results suggest that the different functional groups of sessile epibionts have significant roles in 41 determining the biomass and diversity of mobile invertebrates in eelgrass beds. The abundance, biomass and species diversity of marine benthic invertebrate communities vary 50 greatly with multiple abiotic/biotic factors. The effects of tempera...

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Temporal and spatial macrofaunal community changes along a salinity gradient in seagrass meadows of Akkeshi-ko estuary and Akkeshi Bay, northern Japan

Cited by 61 publications

References 44 publications

Composition and abundance of decapod crustaceans in mixed seagrass meadows in the Paraguaná Peninsula, Venezuela

Composition and abundance of decapod crustaceans in mixed seagrass meadows in the Paraguaná Peninsula, Venezuela

Possibility of direct utilization of seagrass and algae as main food resources by small gastropod, Lacuna decorata, in a subarctic lagoon, Hichirippu, eastern Hokkaido, Japan with stable isotope evidences of carbon and nitrogen

Influence of different types of sessile epibionts on the community structure of mobile invertebrates in an eelgrass bed

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