Climate-induced species range shift and local adaptation strategies in a temperate marine protected area, Ashizuri-Uwakai National Park, Shikoku Island, western Japan

2021 ◽  
Vol 210 ◽  
pp. 105744
Author(s):  
Hiroya Abe ◽  
Haruka Suzuki ◽  
Yuko F. Kitano ◽  
Naoki H. Kumagai ◽  
Satomi Mitsui ◽  
...  
2021 ◽  
Vol 166 ◽  
pp. 105265
Author(s):  
Irina Polovodova Asteman ◽  
Nicolas Van Nieuwenhove ◽  
Thorbjørn Joest Andersen ◽  
Torsten Linders ◽  
Kjell Nordberg

2013 ◽  
Vol 599 ◽  
pp. 1-18
Author(s):  
Orla Doherty ◽  
Carol Milner ◽  
Phillip Dustan ◽  
Stuart Campbell ◽  
Shinta Pardede ◽  
...  

2020 ◽  
Vol 71 (3) ◽  
pp. 414
Author(s):  
E. E. Becerril-García ◽  
M. A. Gutiérrez-Ortiz ◽  
P. A. Preciado-González ◽  
A. Ayala-Bocos

The ecology of mantas and echeneids in the Tropical Eastern Pacific is poorly understood. In this study we describe the frequency of interactions between the vulnerable Mobula birostris and its symbiont Remora remora based on observations of scientists and tourists in a marine protected area. Data were obtained by analysing underwater photographs of observed mantas with remoras over 139 diving days at sea during the period 2016–17. In all, there were 271 photographic records of this symbiosis, corresponding to 207 mantas, with a mean (±s.d.) of 1.6±0.6 remoras per manta. This study is the first to provide information regarding the sex ratio, length, morphotype frequency and echeneids per manta of M. birostris in the Tropical Eastern Pacific.


Author(s):  
Maite Vázquez-Luis ◽  
Gàlia Banach-Esteve ◽  
Elvira Álvarez ◽  
Salud Deudero

Introduction of species is a major driver of global change and loss of biodiversity in ecosystems. The Mediterranean Sea is the most heavily invaded region in the world by introduced seaweeds. The fan mussel Pinna nobilis is the largest Mediterranean bivalve, and a protected species, present at depths from 0.5 m to 60 m. In Cabrera National Park marine protected area (MPA) (Balearic Islands, north-western Mediterranean) the population of P. nobilis is affected by the invasive seaweeds Lophocladia lallemandii and Caulerpa racemosa; however the extent of this colonization on the bivalve is unknown. Therefore, the main aims of the present study were to: (1) determine the extent of invasion of L. lallemandii and C. racemosa on the P. nobilis population; and (2) test if this invasion showed differences with depth. This is the first study assessing invasion by seaweeds on a large bivalve in a high density P. nobilis population. Pinna nobilis was distributed in all seagrass meadows surveyed within the MPA; we found a total of 872 live P. nobilis individuals, 449 and 423 of which were found at 10 and 20 m depth, respectively. High cover of L. lallemandii and low presence of C. racemosa were detected in the P. nobilis population, being quantified in 49.37% and 1.38% of the population of P. nobilis, respectively. Bathymetric differences on Lophocladia epizoism over P. nobilis has been recorded in this study; with increasing values of L. lallemandii cover index, biomass and volume at deeper depths. Pinna nobilis could be a preferential substratum for L. lallemandii in Posidonia oceanica meadows in deeper waters, acting as a stepping-stone for invasive seaweeds and facilitating the invasion throughout seagrass meadows.


ZooKeys ◽  
2019 ◽  
Vol 874 ◽  
pp. 121-126 ◽  
Author(s):  
Shirley Parker-Nance ◽  
Storm Hilliar ◽  
Samantha Waterworth ◽  
Tara Walmsley ◽  
Rosemary Dorrington

The genus Tsitsikamma Samaai & Kelly, 2002 is to date exclusively reported from South Africa. Three species are known from the southern coast: Tsitsikamma favus Samaai & Kelly, 2002, from the Garden Route National Park Tsitsikamma Marine Protected Area (MPA) and Algoa Bay; T. pedunculata Samaai, Gibbons, Kelly and Davies-Coleman, 2003, collected from Cape Recife in St. Francis Bay, and T. scurra Samaai, Gibbons, Kelly and Davies-Coleman, 2003, collected from a wreck site in a small bay west of Hout Bay on the west coast of South Africa. Here two new species are described: Tsitsikamma michaeli Parker-Nance, sp. nov., a small green purse-like species, collected from Algoa Bay, and Tsitsikamma nguni Parker-Nance, sp. nov., from The Garden Route National Park, Tsitsikamma MPA. Additional morphological characteristics, spicule morphology, and distribution records are provided for T. favus and T. pedunculata from Algoa Bay. The phylogenetic relationship of these five Tsitsikamma species is investigated.


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