**Author details**

Maria João Rocha1\* and Eduardo Rocha2

\*Address all correspondence to: mjsrocha@netcabo.pt

1 Interdisciplinary Centre for Marine and Environmental Research (CIIMAR/CIMAR), University of Porto (UPorto), Portugal. Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar (ICBAS), UPorto, Portugal

2 Interdisciplinary Centre for Marine and Environmental Research (CIIMAR/CIMAR), University of Porto (UPorto), Portugal. Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar (ICBAS), UPorto, Portugal
