TY - JOUR
T1 - Ulva blooms in the southwestern Gulf of California
T2 - Reproduction and biomass
AU - Chávez-Sánchez, Tonatiuh
AU - Piñón-Gimate, Alejandra
AU - Serviere-Zaragoza, Elisa
AU - López-Bautista, Juan Manuel
AU - Casas-Valdez, Margarita
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2018/1/5
Y1 - 2018/1/5
N2 - Ulvacean blooms are generally characterized by one or more Ulva species, some of which are common to blooms across a broad geographic range. In tropical environments the identified stimuli that induce reproductive development of Ulva are restricted to temperature, salinity, dehydration and fragmentation. Culture studies have been prolific in describing the reproduction of Ulva species, but its reproductive changes in natural environment have not been described yet. Hence, seasonal changes were described in reproductive stages and their relationship with biomass and environmental factors of Ulva species at four macroalgal blooms in a subtropical bay. Eight Ulva species were found: U. acanthophora, U. clathrata, U. flexuosa, U. intestinalis, U. lactuca, U. lobata, U. nematoidea and U. rigida. Reproductive stage and biomass varied according to site and season. Five species showed four reproductive stages (vegetative, thallus with fully differentiated zooids in formation and empty cells after zooids release); for the remaining species only vegetative thalli were found. Ulva rigida showed the highest biomass values, followed by U. acanthophora, following a seasonal pattern.
AB - Ulvacean blooms are generally characterized by one or more Ulva species, some of which are common to blooms across a broad geographic range. In tropical environments the identified stimuli that induce reproductive development of Ulva are restricted to temperature, salinity, dehydration and fragmentation. Culture studies have been prolific in describing the reproduction of Ulva species, but its reproductive changes in natural environment have not been described yet. Hence, seasonal changes were described in reproductive stages and their relationship with biomass and environmental factors of Ulva species at four macroalgal blooms in a subtropical bay. Eight Ulva species were found: U. acanthophora, U. clathrata, U. flexuosa, U. intestinalis, U. lactuca, U. lobata, U. nematoidea and U. rigida. Reproductive stage and biomass varied according to site and season. Five species showed four reproductive stages (vegetative, thallus with fully differentiated zooids in formation and empty cells after zooids release); for the remaining species only vegetative thalli were found. Ulva rigida showed the highest biomass values, followed by U. acanthophora, following a seasonal pattern.
KW - Biomass
KW - Gulf of California
KW - Nutrients
KW - Reproduction
KW - Temperature
KW - Ulva
UR - http://www.scopus.com/inward/record.url?scp=85034037481&partnerID=8YFLogxK
U2 - 10.1016/j.ecss.2017.11.007
DO - 10.1016/j.ecss.2017.11.007
M3 - Artículo
SN - 0272-7714
VL - 200
SP - 202
EP - 211
JO - Estuarine, Coastal and Shelf Science
JF - Estuarine, Coastal and Shelf Science
ER -