Botanica Marina 2016 | Volume 59 | Issue 2-3 In this issue Paulos Getachew, Bo-Hye Nam, Research article: The hydrozoan Ji Young Cho and Yong-Ki Hong Obelia geniculata colonizes late- Influences of hydrozoan colonization harvested blades of Saccharina on proteomic profiles of the brown japonica. From proteomic profiles, alga Saccharina japonica 7 and 16 proteins were significantly up- and down-regulated, respectively, in expression level upon DOI 10.1515/bot-2015-0103 colonization; most are related to Botanica Marina 2016; 59(2-3): 85–93 stress control, signal transduction, and photosynthesis. Keywords: MALDI-TOF/MS; Obelia geniculata; proteomics; Saccharina japonica. Conxi Rodríguez-Prieto Research article: Survival of Light and temperature requirements thalli of Lithophyllum stictaeforme for survival, growth and reproduction decreased at higher irradiances of the crustose coralline Lithophyllum and temperatures, but no marginal stictaeforme from the Mediterranean extension was observed in laboratory Sea cultures, even after 5 years. Thalli surviving for shorter periods released their tetraspores earlier. DOI 10.1515/bot-2015-0070 Botanica Marina 2016; 59(2-3): 95–104 Keywords: culture; light; Lithophyllum stictaeforme; Rhodophyta; temperature. Alexandra Mystikou, Aldo O. Asensi, Research article: Seaweed Olivier DeClerck, Dieter G. Müller, biodiversity of southernmost Akira F. Peters, Konstantinos Tsiamis, South America and the Falklands Kyle I. Fletcher, Renato Westermeier, still has potential for discoveries. Paul Brickle, Pieter van West and Underpinned by molecular Frithjof C. Küpper information, new records of eight New records and observations of brown algae, including a new macroalgae and associated pathogens Dictyota lineage, four red algae, from the Falkland Islands, Patagonia one green alga and an oomycete are and Tierra del Fuego reported. Keywords: Anisolpidium ectocarpii; COI; Falkland Islands; Patagonia; DOI 10.1515/bot-2015-0071 Phaeophyceae; Rhodophyta; Botanica Marina 2016; 59(2-3): 105–121 Subantarctic seaweeds; Tierra del Fuego; Ulvophyceae. Botanica Marina 2016 | Volume 59 | Issue 2-3 Michael J. Wynne and Razy Hoffman Research article: Evidence is Evidence for the proposed merger presented that the marine macroalga of Pseudobryopsis papillata Pseudobryopsis papillata Nasr with Pseudobryopsis myura (Bryopsidaceae, Chlorophyta), (Bryopsidaceae, Chlorophyta) described by Nasr in 1944 from the Red Sea, is conspecific with the Mediterranean generitype Ps. myura DOI 10.1515/bot-2016-0018 (J. Agardh) Berthold in Oltmanns. Botanica Marina 2016; 59(2-3): 123–130 Keywords: green algae; Mediterranean Sea; Pseudobryopsis; Pseudobryopsis myura; Pseudobryopsis papillata; Red Sea; taxonomy. Luz Elena Mateo-Cid, A. Catalina Research article: Using a Mendoza-González, Abel Sentíes, combination of morphological and Jhoana Díaz-Larrea, Deisy Y. García- molecular data we reevaluated the López and Beatriz Martinez-Daranas diversity of the genus Ochtodes Description of two new species of in the Mexican Caribbean, and Ochtodes (Rhodophyta: Gigartinales) describe two new species, which from Caribbean Mexico on the basis suggest that more studies of of morphological and molecular Ochtodes in the tropical western evidence Atlantic are required. Keywords: Caribbean; molecular; DOI 10.1515/bot-2015-0069 morphological; Ochtodes; phylogeny; Botanica Marina 2016; 59(2-3): 131–146 rbcL. Kiana Pirian, Khosro Piri, Jelveh Research article: Ulva chaugulii, Sohrabipour, Saied Tamadoni Jahromi a new record for the Persian Gulf, and Jaanika Blomster shows morphological variation that Molecular and morphological differs considerably from its species characterisation of Ulva chaugulii, U. description. Our findings support paschima and U. ohnoi (Ulvophyceae) the view that morphology should be from the Persian Gulf, Iran used with caution, and preferably in conjunction with molecular data, in DOI 10.1515/bot-2016-0009 Ulva species identification. Botanica Marina 2016; 59(2-3): 147–158 Keywords: ITS2; molecular phylogeny; Persian Gulf; rbcL; Ulva spp. Botanica Marina 2016 | Volume 59 | Issue 2-3 Tatiana V. Morozova, Tatiana Yu. Research article: The distribution of Orlova, Kseniya V. Efimova, Alexander cysts of the Scrippsiella trochoidea Yu. Lazaryuk and Boris A. Burov complex in recent sediments is Scrippsiella trochoidea cysts in recent reported for the first time for Far sediments from Amur Bay, Sea of Eastern seas of Russia (Sea of Japan); Japan: distribution and phylogeny the identification of S. trochoidea was confirmed using biomolecular DOI 10.1515/bot-2015-0057 genetic analyses. Botanica Marina 2016; 59(2-3): 159–172 Keywords: biomolecular study; dinoflagellate cyst; distribution; longevity; Scrippsiella trochoidea. Michael N. Githaiga, Linda Gilpin, Research article: There is a paucity James G. Kairo and Mark Huxham of information on biomass and Biomass and productivity of productivity of seagrass ecosystems seagrasses in Africa in Africa which limits our understanding of the potential role of blue carbon in climate change mitigation. DOI 10.1515/bot-2015-0075 Botanica Marina 2016; 59(2-3): 173–186 Keywords: Africa; blue carbon; productivity; seagrasses. Ratchanee Kaewsrikhaw, Anchana Research article: Rates of Prathep, Anuchit Darakrai and Sven calcification and photosynthetic Beer inorganic-carbon uptake for two Photosynthesis and calcification in Halimeda species are saturated by two Halimeda species from Phuket, today’s seawater inorganic carbon Thailand composition, and calcification will be positive also at pH 7.7, which is predicted to occur in 2100 due to DOI 10.1515/bot-2016-0003 ocean acidification. Botanica Marina 2016; 59(2-3): 187–192 Keywords: calcification; Halimeda; ocean acidification; pH; photosynthesis. Botanica Marina 2016 | Volume 59 | Issue 2-3 Joseph L. Kowalski and Hudson R. Short communication: Flowers, DeYoe attached fruit, and sediment seeds Flowering and seed production in of Halodule wrightii were found on the subtropical seagrass, Halodule several occasions over more than wrightii (shoal grass) a decade. Sexual reproduction in H. wrightii is more common DOI 10.1515/bot-2015-0099 than believed, but the cryptic and Botanica Marina 2016; 59(2-3): 193–199 ephemeral nature of flowers hinders discovery. Keywords: flowers; Halodule wrightii; reproductive ecology; seed bank. Litao Zhang and Jianguo Liu Short communication: Plastid Plastid terminal oxidase acts as an terminal oxidase (PTOX) acted alternative electron sink in a marine as an alternative electron sink, cyanobacterium Arthrospira sp. accounting for 27% of total PSII electron transport in Arthrospira sp. under high light. In contrast, PTOX DOI 10.1515/bot-2016-0012 accounted for only 9% of total PSII Botanica Marina 2016; 59(2-3): 201–204 electron transport flow under low light. Keywords: alternative electron sink; Arthrospira sp.; photosynthesis; plastid terminal oxidase. Norishige Yotsukura, Nobu Nagai and Short communication: Based on the Tadashi Kawai absence of definite morphological A taxonomic re-examination differences, their high genetic of Saccharina longipedalis similarity, and the normal early (Laminariales, Phaeophyceae), an development of hybrids between endemic kelp species around Lake the two taxa, it is concluded that Akkeshi in eastern Hokkaido, Japan Saccharina longipedalis should be treated as S. japonica var. diabolica. Keywords: Japanese kelp; Lake DOI 10.1515/bot-2016-0006 Akkeshi; Saccharina japonica var. Botanica Marina 2016; 59(2-3): 205–210 diabolica; Saccharina longipedalis; taxonomic re-examination..