scholarly journals ASSESSMENT OF THE SPATIO-TEMPORAL DISTRIBUTION AND HABITAT PREFERENCES OF OSTRACODA (CRUSTACEA) RELATED TO CERTAIN ENVIRONMENTAL FACTORS IN KAPIDAĞ PENINSULA (THE SEA OF MARMARA, TURKEY).

Author(s):  
Ferda Perçin Paçal ◽  
Selçuk Altınsaçlı ◽  
Saltuk Buğra Arısal ◽  
Hüsamettin Balkıs
2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Veronica Pereira Bernardes ◽  
Fernando Luis Mantelatto ◽  
Thiago Elias da Silva ◽  
Aline Nonato de Sousa ◽  
Camila Hipólito Bernardo ◽  
...  

Abstract: This study evaluated the relationships between environmental factors and the spatio-temporal distribution of H. pudibundus, with the hypothesis of differential occupation in coastal areas of southeastern Brazil. The samplings took place monthly in January-December 2000 period, along nine transects from 2 to 40 m of depth, in Ubatuba region, northern coast of São Paulo. We collected 1808 individuals of H. pudibundus. The highest abundance was recorded in winter in the transects 10-25 m deep. Abundance was positively correlated with organic matter content and texture sediment (phi values). With the retreat of the South Atlantic Central Water (SACW) in autumn and winter, the sediment swirls, suspending the detritivore and filter-feeding macrofauna, increasing the food availability. Sites characterized by finer sediment offer higher food availability, besides facilitating H. pudibundus burying behavior. Due to its opportunistic predatory behavior, this species feeds on a variety of organisms, including mollusks, annelids and foraminifera, which are preys more abundant in the studied area and in sediments of finer grain size.


PLoS ONE ◽  
2017 ◽  
Vol 12 (7) ◽  
pp. e0181611 ◽  
Author(s):  
Antonio Canepa ◽  
Verónica Fuentes ◽  
Mar Bosch-Belmar ◽  
Melissa Acevedo ◽  
Kilian Toledo-Guedes ◽  
...  

Hydrobiologia ◽  
2006 ◽  
Vol 553 (1) ◽  
pp. 129-142 ◽  
Author(s):  
Ghita Chlyeh ◽  
Marine Dodet ◽  
Bernard Delay ◽  
Khalid Khallaayoune ◽  
Philippe Jarne

2017 ◽  
Vol 98 (5) ◽  
pp. 1065-1079 ◽  
Author(s):  
B. L. Melly ◽  
G. McGregor ◽  
G.J.G. Hofmeyr ◽  
S. Plön

Increasingly, baseline knowledge of habitat preferences and movement patterns of marine species is required to inform anthropogenic developments. The aim of this study was to determine baseline spatio-temporal distribution and habitat preference of cetaceans in the coastal waters of Algoa Bay. Areas of potential conflict with anthropogenic activities were also assessed. Monthly sea-based surveys were conducted between June 2008 and May 2011. A total of 500 cetacean sightings comprising six species were recorded in 106 surveys. Tursiops aduncus (Indo-Pacific bottlenose dolphin), Sousa plumbea (Indian Ocean humpback dolphin), Delphinus capensis (long-beaked common dolphin) and Balaenoptera brydei (Bryde's whale) were observed year-round, while Eubalaena australis (southern right whale) and Megaptera novaeangliae (humpback whale) were recorded from May to December. A large portion of sightings were associated with a Marine Protected Area and shipping zones. Eubalaena australis, T. aduncus and S. plumbea were found inshore (water depths < 12 m), while the other species were associated with deeper waters. Tursiops aduncus were most commonly seen (233 sightings). Megaptera novaeangliae were sighted often in austral winter, with 113 sightings. Only nine D. capensis sightings were recorded. Spatial distributions of species were corrected for search effort to identify habitat preferences. A number of key observations were made, including opportunistic foraging in M. novaeangliae, and the expansion of nursery grounds for E. australis, to include Algoa Bay. Four preferred habitat areas are proposed, providing important information for conservation and management of cetaceans in Algoa Bay. The spatial approach can be used to inform future relevant management decisions elsewhere.


2021 ◽  
Vol 12 (05) ◽  
pp. 147-163
Author(s):  
Tenda Hélène Dembe Louvinguila ◽  
Armel Ibala Zamba ◽  
Victor Mamonekene ◽  
Lérège Batiabo Mikembi ◽  
Freedom Honest Poaty Ngot ◽  
...  

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