CERTIFICATION PURSUANT TO RULE 30A-2(A) UNDER THE 1940 ACT AND
                     SECTION 302 OF THE SARBANES-OXLEY ACT



I, Bruce N. Alpert, certify that:

1.       I have  reviewed  this report on Form N-CSR of The Gabelli  Convertible
         and Income Securities Fund Inc.;

2.       Based  on my  knowledge,  this  report  does  not  contain  any  untrue
         statement of a material fact or omit to state a material fact necessary
         to make the statements made, in light of the circumstances  under which
         such  statements  were made, not misleading  with respect to the period
         covered by this report;

3.       Based on my knowledge,  the financial  statements,  and other financial
         information  included in this  report,  fairly  present in all material
         respects the financial condition, results of operations, changes in net
         assets,  and cash flows (if the  financial  statements  are required to
         include a statement  of cash flows) of the  registrant  as of, and for,
         the periods presented in this report;

4.       The registrant's other certifying  officer(s) and I are responsible for
         establishing  and  maintaining  disclosure  controls and procedures (as
         defined in Rule 30a-3(c) under the Investment  Company Act of 1940) and
         internal control over financial  reporting (as defined in Rule 30a-3(d)
         under the Investment Company Act of 1940) for the registrant and have:

         (a)  Designed such disclosure  controls and procedures,  or caused such
              disclosure  controls  and  procedures  to be  designed  under  our
              supervision,  to ensure that material  information relating to the
              registrant, including its consolidated subsidiaries, is made known
              to us by others  within those  entities,  particularly  during the
              period in which this report is being prepared;

         (b)  Designed such internal control over financial reporting, or caused
              such  internal  control  over  financial  reporting to be designed
              under our supervision,  to provide reasonable  assurance regarding
              the  reliability  of financial  reporting and the  preparation  of
              financial  statements  for external  purposes in  accordance  with
              generally accepted accounting principles;


         (c)  Evaluated  the   effectiveness  of  the  registrant's   disclosure
              controls  and   procedures   and  presented  in  this  report  our
              conclusions about the effectiveness of the disclosure controls and
              procedures,  as of a date  within 90 days prior to the filing date
              of this report based on such evaluation; and

         (d)  Disclosed in this report any change in the  registrant's  internal
              control  over  financial   reporting  that  occurred   during  the
              registrant's  second fiscal  quarter of the period covered by this
              report that has materially  affected,  or is reasonably  likely to
              materially   affect,   the  registrant's   internal  control  over
              financial reporting; and

5.       The registrant's  other  certifying  officer(s) and I have disclosed to
         the  registrant's  auditors and the audit committee of the registrant's
         board of directors (or persons performing the equivalent functions):

         (a)  All significant deficiencies and material weaknesses in the design
              or operation of internal  control over financial  reporting  which
              are reasonably likely to adversely affect the registrant's ability
              to record, process,  summarize,  and report financial information;
              and

         (b)  Any fraud,  whether or not material,  that involves  management or
              other  employees who have a significant  role in the  registrant's
              internal control over financial reporting.


Date:    March 9, 2005              /s/ Bruce N. Alpert
     -------------------------      --------------------------------------------
                                    Bruce N. Alpert, Principal Executive Officer
                                    & Principal Financial Officer